Le lithium, une flambée en perspective?


Cette question vous permet de vous prémunir contre les soumissions automatisées et intensives effectuées par des robots malveillants.
:D :geek: :ugeek: :ghost: :wtf: :-D :) :-) :-( :-o :shock: :? 8-) :lol: :-x :-P :oops: :cry: :evil: :twisted: :roll: ;) ;-) :!: :?: :idea: :arrow: :-| :mrgreen: =D> #-o =P~ :^o [-X [-o< 8-[ [-( :-k ](*,) :-" O:) =; :-& :-({|= :-$ :-s \:D/ :-#
Plus d’émoticônes

Le BBCode est activé
La balise [img] est activée
La balise [flash] est activée
La balise [url] est activée
Les émoticônes sont activées

Relecture du sujet

Agrandir Relecture du sujet : Le lithium, une flambée en perspective?

Re: Le lithium, une flambée en perspective?

par energy_isere » 03 août 2020, 21:53

Suite de ce post du 19 mai 2019 viewtopic.php?p=2283932#p2283932
Rio Tinto to invest $200m to progress Jadar lithium project in Serbia

31 juillet 2020

Global mining giant Rio Tinto has announced that it is investing nearly $200m to progress the Jadar lithium-borate project in Serbia to the next phase of development.

Discovered by Rio Tinto in 2004, Jadar is located near Loznica in western Serbia, around 160km from Belgrade.

The funding will primarily cover the feasibility study, detailed engineering designs, permitting, as well as land acquisition, which are set to be complete by the end of next year.

The Jadar deposit comprises high-grade mineralisation of boron and lithium and supports a long-life operation of both the products.
Rio Tinto Energy & Minerals chief executive Bold Baatar said: “Rio Tinto’s lithium project pipeline is an important part of our vision to pursue opportunities which are part of the transition to a low-carbon future.

“We look forward to working closely with the Government of Serbia over the next eighteen months as we develop and validate our understanding of the project to the point when we can seek a final investment decision by the Board of Rio Tinto.”

Simultaneously, the company has also started commissioning its lithium demonstration plant in the US. This plant extracts lithium from waste rock at the company’s boron mine in California.
https://www.mining-technology.com/news/ ... m-project/

Re: Le lithium, une flambée en perspective?

par energy_isere » 19 juil. 2020, 11:19

Suite de ce post du 6 octobre 2019 viewtopic.php?p=2289058#p2289058

Societe Générale va financer le projet de Lithium Grota do Cirilo au Brésil.
Brazil : Sigma’s $45 million project finance beneficial for lithium industry – report

MINING.COM Staff Writer | July 14, 2020

Finished product with 6% Min. Li2O from the Grota do Cirilo project. (Image courtesy of Sigma Lithium Resources).

Market research firm Roskill has published an analysis where it reports that Sigma Lithium Resources’ (TSX-V: SGMA) $45 million finance by Societe Generale for its Grota do Cirilo project in Brazil sent a positive message about the state of the lithium industry.

The announcement was made in late June and it marked a second green funding success in as many weeks for the lithium sector, following on from Livent’s $225 million green debt facility.

“With an interest rate of US LIBOR plus 5%, dropping to LIBOR plus 4.5% after completion of the project, this deal highlights the relatively low-cost access to capital lithium producers can gain, even in a tough market, by leveraging the green credentials of their product (which can be used in the production of rechargeable batteries),” the report reads.

“In the case of Sigma, these green credentials have been bolstered by its access to hydro-power (reducing its scope 2 GHG emissions) and its wider Environmental, Social, and Governance (ESG) focused development of the project, which has helped it meet the EPs.”

Pilot plant at the Grota do Cirilo project. (Image courtesy of Sigma Lithium Resources).

According to Roskill, Sigma’s financing package includes environmental and social covenants following the Equator Principles, which are a set of voluntary guidelines adopted by private financial institutions to ensure that large-scale development or construction projects appropriately consider the associated potential impacts on the natural environment and any affected communities.

The package will be supplemented by a production prepayment facility signed with Mitsui & Co in April 2019 and an approximate $10-million equity contribution, which is required to satisfy the funding package.

Located in Minas Gerais, Brazil, the Grota do Cirilo project is initially expected to produce 220ktpy of 6% Li2O spodumene concentrate from the Xuxa deposit. The construction capital cost for the project is currently estimated at $82 million.
https://www.mining.com/sigma-lithiums-4 ... y-roskill/

Re: Le lithium, une flambée en perspective?

par energy_isere » 12 juil. 2020, 09:51

Suite de ce post du 6 oct 2019 viewtopic.php?p=2289063#p2289063
Cornish Lithium gets over $1m funding boost for UK project

Cecilia Jamasmie | July 7, 2020

Cornish Lithium, a start-up hoping to lead the development of an industry for the battery metal in the UK, has raised £826,000 ($1.03 million) from shareholders, which it says it will use to expand ongoing drilling work.

The miner says recent exploration activity in the ancient mining region of Cornwall, south-west England, has proved “highly encouraging.”

The company will now plan further phases of drilling in both geothermal waters and in hard rock, to begin as soon as “current conditions allow.”
https://www.mining.com/cornish-lithium- ... k-project/

Re: Le lithium, une flambée en perspective?

par energy_isere » 11 juil. 2020, 10:06

Suite de ce post du 7 sept 2019 viewtopic.php?p=2287398#p2287398
Mali : le potentiel minéral du projet de lithium Goulamina revu à la hausse

Agence Ecofin 8 juillet 2020

La future mine de Goulamina au Mali pourrait produire plus de lithium que prévu. La société Mali Lithium a en effet annoncé une augmentation de 48 % des ressources mesurées et indiquées du projet. Ces chiffres seront inclus dans la DFS attendue dans deux mois.


La compagnie minière Mali Lithium a annoncé mercredi une augmentation de ressources à son projet de lithium Goulamina. Cet actif situé au Mali totalise désormais 108,51 millions de tonnes de ressources à une teneur de 1,45 % de Li2O, soit 1,57 million de tonnes d’oxyde de lithium. Cela représente une augmentation de 6 % par rapport à l’estimation de ressources publiée dans l’étude de préfaisabilité (PFS) du projet en juin 2018.

Il faut souligner une avancée considérable dans ces nouveaux chiffres, car les ressources classées dans les catégories « mesurée » et « indiquée », considérées comme plus fiables, ont connu une hausse de 48 %. Elles atteignent désormais 64,6 millions de tonnes titrant 1,49 % de Li2O, soit 0,96 million de tonnes d’oxyde de lithium. Ces nouveaux résultats serviront de base, apprend-on, à la nouvelle estimation de réserves de minerai qui sera incluse dans l’étude de faisabilité définitive (DFS).

Selon la PFS de 2018, le projet Goulamina pourrait produire annuellement 362 000 tonnes de concentré d’oxyde sur une durée de vie de 16 ans. Avec l’augmentation des ressources du projet, ces chiffres seront significativement améliorés dans la DFS qui devrait être achevée dans deux mois.
https://www.agenceecofin.com/metaux/080 ... -la-hausse

Re: Le lithium, une flambée en perspective?

par energy_isere » 05 juil. 2020, 14:34

Suite de ce post du 16 juin 2019 viewtopic.php?p=2284539#p2284539

Le Finlandais Keliber poursuit activement son projet de lithium de spodumene dans le pays.
Il est question de commencer les travaux en 2022 pour une capacité de 15000 t d'hydroxyde de Lithium annuel.
Keliber books Outotec for basic engineering of Päiväneva lithium concentrator

Posted by Paul Moore on 30th


On June 29, 2020, just before the combination of Metso and Outotec to become Metso Outotec, Finnish hard rock lithium ore to battery grade lithium hydroxide project developer Keliber and mineral processing technology provider Outotec signed an agreement regarding the basic engineering of Keliber’s Päiväneva concentrator. Outotec will design the concentrator process and process equipment for the production flow sheet: ore crushing, sorting, grinding and concentration.

The basic engineering of the concentrator is based on the new location of the concentrator next to the main mining sites. Design criteria include environmental, social and economic parameters which will be incorporated in the solution for the concentrator. “We can confidently continue to promote our project with a reliable partner for the concentrator engineering. At the same time, Outotec will provide Keliber with valuable information for the EIA process and the environmental permit”, says Hannu Hautala, CEO of Keliber Oy.

During the first months of 2020, Keliber continued its work towards battery-grade lithium hydroxide production for the needs of the growing international market. To demonstrate the functionality of the production process, a continuous lithium hydroxide pilot was carried out at the Outotec R&D centre. The purity of the product received was extremely high and lithium recovery in the process was better than the one used in the Definitive Feasibility Study in February 2019.

Keliber will operate initially the surface Rapasaari and Syvajarvi lithium (spodumene) mines and the Päiväneva concentrator plant all located some 10 km from Kaustinen. The Päiväneva plant will produce spodumene concentrate and the chemical plant will be located slightly over 50 km away in the Kokkola Industrial Park, near the Port of Kokkola – this location will see the heat treatment and hydrometallurgical processing of the spodumene concentrate to produce lithium hydroxide up to the final product packaging and shipping. Keliber has also opted to increase its annual lithium hydroxide production from 12,500 t to 15,000 t. Construction of the project is now set to start in 2022.

Last December, Keliber reported that it had reached 96.9% conversion degree in a continuous conversion pilot conducted with FLSmidth using a rotary kiln and spodumene concentrate produced from Syvajarvi lithium ore. FLSmidth has been selected for the rotary kiln basic engineering, with Outotec doing the basic engineering for the Kokkola chemical plant.
https://im-mining.com/2020/06/30/kelibe ... centrator/

Re: Le lithium, une flambée en perspective?

par energy_isere » 04 juil. 2020, 11:08

Ghana : IronRidge obtient un nouveau permis d’exploration pour le lithium

Agence Ecofin 1er juillet 2020

IronRidge Resources accroit ses chances de découverte majeure de lithium au Ghana. La société vient d’obtenir un nouveau permis d’exploration dans le pays, non loin de son projet Ewoyaa. Des travaux de forage démarreront bientôt pour une première estimation de ressources.

Au Ghana, la compagnie minière IronRidge a obtenu, par le biais de sa filiale Green Metals Resources, un nouveau permis d’exploration de lithium couvrant une superficie de 13,02 km². La société voit ainsi s’améliorer ses chances de découverte majeure dans le pays, d’autant plus que le nouvel actif est situé au sud de son projet phare Ewoyaa.

« Nous sommes ravis d’avoir obtenu le permis d’exploration de Mankessim South, qui consolide et améliore notre portefeuille […]. La licence nouvellement accordée représente un terrain très prometteur dans le corridor de ressources en pegmatite de lithium et constitue une extension située directement dans l’axe du projet Ewoyaa », a déclaré Vincent Mascolo, PDG de IronRidge, précisant qu’une équipe d’exploration est déjà sur place pour mener les premiers travaux de forage.

Pour rappel, IronRidge détient également au Ghana le projet Cape Coast Lithium. Elle est présente dans le même secteur en Côte d’Ivoire, mais aussi dans l’or au Tchad et le fer au Gabon.
https://www.agenceecofin.com/metaux/010 ... le-lithium

Re: Le lithium, une flambée en perspective?

par energy_isere » 28 juin 2020, 10:34

Suite de ce post du 24 mai 2020 viewtopic.php?p=2304222#p2304222

Le projet de Lithium de Clayton Valley est chaud bouillant à l'issue de résultats de carottage.
Spearmint Resources to kickstart Nevada lithium operations

MINING.COM Staff Writer | June 23, 2020


Spearmint Resources (CSE: SPMT) has announced it is ready to kickstart operations on its Clayton Valley lithium projects in Nevada.

In a press release, the Canadian miner said management is working on a series of strategies to be applied at each separate claim block that comprises the project: the Elon property (brine) and the McGee property (clay) which cover an aggregate area of 800 acres.

“Spearmint Resources Inc. previously announced that exploration drilling had been completed on its Clayton Valley lithium projects (McGee property) and has intersected lithium as high as 1,670 ppm Li,” the media brief states.

https://www.mining.com/spearmint-resour ... in-nevada/

Re: Le lithium, une flambée en perspective?

par energy_isere » 28 juin 2020, 10:25

Suite de ce post du 3 nov 2019 viewtopic.php?p=2291005#p2291005

Le projet Pastos Grandes en Argentine reçoit le OK environnemental.
Argentina approves Millennial Lithium’s environmental impact assessment for Pastos Grandes

MINING.COM Staff Writer | June 24, 2020

The Environmental and Mining Authority of Argentina’s Salta province approved Millennial Lithium’s (TSXV: ML) environmental impact assessment for the construction and operation of its Pastos Grandes project.

The approval was granted to the Canadian miner’s subsidiary Proyecto Pastos Grandes S.A. and it allows for a 24,000-tonne-per-year battery-grade lithium carbonate production facility to run on the property.

Known in Spanish as “Declaración de Impacto Ambiental” or DIA, the permit is the main environmental approval document required for mining projects in the Salta province to proceed to the construction stage and to operate.

“The rapid approval by the Salta government reflects both the detailed and comprehensive nature of the EIA and the commitment of the government to continue supporting viable mining projects,” Farhad Abasov, Millennial Lithium’s president and CEO, said in a media statement.

“We are pleased to have secured this approval which makes Pastos Grandes one of the most advanced lithium projects in the world.”

Located in the northwestern part of Argentina, Pastos Grandes covers over 12,619 hectares. To date, Millennial has invested over C$40 million in exploration and development work on the property, which includes 22 completed exploration/monitoring wells, four pumping test production wells, pilot ponds, the pilot plant as well as a year-round camp supported by a hybrid solar power system.
https://www.mining.com/argentinian-prov ... s-grandes/

Re: Le lithium, une flambée en perspective?

par energy_isere » 21 juin 2020, 09:24

Accord de fourniture de Lithium australien à une compagnie Chinoise :
Altura inks lithium supply contracts with Ningbo Shanshan

Reuters | June 19, 2020

Altura Mining Ltd said on Friday it had signed multi-year lithium supply contracts with its second-largest shareholder Ningbo Shanshan Co Ltd, sending its shares more than 30% higher.

The Australian miner said it would supply a minimum of 60,000 dry metric tonnes (dmt) of the metal, used to make alloys that make up parts of aircraft and high-speed trains, to the Chinese lithium battery material manufacturer from January 2022.

It will also provide 44,000 dmt of 6% grade lithium ore mineral to Ningbo’s unit Hunan Yongshan Lithium Co Ltd under a separate one-year contract. However, Altura did not disclose any financial details of the contracts.

The deal will make Altura a key supplier to Ningbo’s new lithium chemical plant, which has a planned phase 1 production capacity of 25,000 tonnes per annum lithium carbonate equivalent.
https://www.mining.com/web/altura-inks- ... -shanshan/

Re: Le lithium, une flambée en perspective?

par energy_isere » 18 juin 2020, 21:02

L'UE doit s'engager dans la définition de normes sur le lithium, dit Thierry Breton

le 18/06/2020 par Foo Yun Chee BRUXELLES (Reuters)

Thierry Breton, le commissaire européen au Marché intérieur, a exhorté les Etats membres de l'Union européenne, à s'engager plus activement dans la définition de normes internationales sur le lithium, un composant utilisé dans les véhicules électriques, au risque de voir le bloc communautaire être marginalisé par la Chine sur ce dossier.

La mise en garde de Thierry Breton fait écho aux inquiétudes de la Commission européenne alors que la Chine tente d'accroître son influence dans la définition des normes sur ce composant essentiel aux objectifs de l'Union en matière de véhicules électriques et d'énergie verte, impliquant des groupes comme Volkswagen, PSA et Siemens.

Le conseil technique de l'Organisation internationale de normalisation (ISO) doit se prononcer les 24 et 25 juin sur une proposition chinoise visant à créer un comité sur les normes pour le lithium. La Chine vise le secrétariat de ce comité.

L'exploitation, l'extraction, les tests, l'analyse et la transformation du lithium sont autant d'éléments qui seront encadrés par les normes définies par ce comité.

"Les principaux partenaires commerciaux de l'UE sont très actifs dans l'élaboration de normes internationales sur des marchés clés afin de protéger et d'accroître leur avantage concurrentiel", écrit Thierry Breton dans une lettre, consultée par Reuters, aux ministres de l'Industrie des 27 pays de l'UE.

"Nous devons être vigilants face à de tels processus qui peuvent, sans une bonne implication, nuire involontairement à notre compétitivité économique et à notre leadership technologique", met-il en garde.

"Il est dans notre intérêt de donner aux entreprises européennes un avantage concurrentiel en veillant à ce que les normes internationales soient conformes aux nôtres, qu'elles soient déjà élaborées ou en cours", ajoute-t-il.

Thierry Breton a déclaré que la Commission européenne demanderait au Comité européen de normalisation (CEN) et au Comité européen de normalisation électrotechnique (CENELEC) de surveiller les travaux sur les nouvelles normes sur le lithium.
https://www.usinenouvelle.com/article/l ... on.N976946

Re: Le lithium, une flambée en perspective?

par energy_isere » 31 mai 2020, 10:25

Suite de ce post du 27 oct 2019 viewtopic.php?p=2290654#p2290654

Redemarrage de l' exploration et développement du projet de Bacanora Lithium sur le projet de Lithium de Sonora au Mexique.
Bacanora Lithium to reopen plant at Sonora project

Cecilia Jamasmie | May 29, 2020

Exploration and development company Bacanora Lithium (LON:BCN) announced it expects to reopen the Hermosillo pilot plant at its flagship Sonora lithium project in Mexico next month.

Despite the coronavirus pandemic, the company said it was continuing to progress all feasible workstreams, with significant attention focused on completing work at Sonora.

Bacanora also said the project review by strategic partner Ganfeng Lithium is now scheduled for the third quarter of the year. Previously it was expected to be completed in the first six months of 2020.

The delay may not impact the overall project timeline, Bacanora said. However, Ganfeng’s timing of an engineering, procurement and construction proposal for the production of downstream battery-grade lithium products from the Sonora plant is also under review.

The company said it anticipates lithium demand to grow by 800% by 2030, thanks to increased electric vehicles (EV) demand.

“Whilst demand for internal combustion vehicles has been significantly impacted by the spread of covid-19 and a general economic slowdown, electric vehicle demand in Europe increased over 50% during first quarter [of] 2020,” Bacanora said in a media release.

Bacanora now expects to kick off site works in the first half of 2021. This would allow the miner to begin lithium deliveries to its offtake partners, Ganfeng Lithium and Hanwa Corp, in 2023.

The company, however, has yet to secure full financing for construction of project, which is expected to produce 35,000 tonnes of lithium per year.

Prices for lithium are expected to climb in two years, when shortages in the market caused by curtailed production and halted expansions start to emerge.
https://www.mining.com/bacanora-lithium ... a-project/

Re: Le lithium, une flambée en perspective?

par energy_isere » 30 mai 2020, 10:35

suite de ce post du 19 oct 2018 : viewtopic.php?p=2273880#p2273880
Namibie : le développement du projet de lithium Karibib nécessitera un investissement de 139 millions $

Agence Ecofin 28 mai 2020

Selon une étude de faisabilité définitive publiée jeudi par la compagnie minière Lepidico, les ressources du projet de lithium Karibib en Namibie peuvent être exploitées sur 14 ans. La première phase de développement du projet nécessitera un investissement de 139 millions $, récupérables en moins de 3 ans.

La DFS prévoit une moyenne de production annuelle de 4 900 tonnes d’hydroxyde de lithium, mais aussi des sous-produits stratégiques comme le césium, le rubidium ou encore du sulfate de potasse. La valeur actuelle nette du projet est estimée à 221 millions $ et le taux de rentabilité interne à 31 %.

Il faut noter qu’avec le marché du lithium en pleine expansion (pour les batteries électriques) et le fait que des produits comme le césium et le rubidium sont classés comme « métaux critiques » aux États-Unis, Lepidico devrait rapidement obtenir le financement nécessaire pour lancer la production. La compagnie prévoit d’ailleurs de finaliser l’évaluation des impacts environnementaux et sociaux du projet pour le mois de juillet et prendre une décision finale d’investissement l’année prochaine.
https://www.agenceecofin.com/metaux/280 ... 9-millions

ce projet est la suite du projet Desert Lion que j' ai déjà mentionné.
Namibie : Lepidico acquiert le projet de lithium Karibib

Agence Ecofin Date de création - Lepidico a finalisé cette semaine l’acquisition de Desert Lion Energy, société active sur le lithium en Namibie. La compagnie cotée sur ASX devient ainsi propriétaire du grand projet de lithium Karibib, qui couvre une superficie d’environ 1 000 km2.

Pour acquérir tout le capital-actions de Desert Lion, Lepidico a émis un total de 571 157 062 nouvelles actions ordinaires (ainsi que des options et bons de souscription). Elle avait proposé aux actionnaires pour chaque action détenue dans la société, 5,4 actions dans son propre capital.

En outre, la compagnie a également émis des actions aux créanciers de Desert Lion pour régler les dettes de l’entreprise.

« La clôture de cette transaction est transformatrice pour Lepidico, car elle permet à la société d'acquérir une participation majoritaire directe dans les premiers gisements de lépidolite de première qualité (les gisements de Karibib, NDLR) », a commenté le DG Joe Walsh.

Desert Lion Energy avait prévu de développer le projet Karibib en trois phases dont la première porte sur le traitement de minerais provenant des stocks historiques tout-venant des mines Rubicon et Helikon.
https://www.agenceecofin.com/metaux/120 ... um-karibib

Re: Le lithium, une flambée en perspective?

par energy_isere » 24 mai 2020, 11:54

Le Covid19 à un trés fort impact sur la production de Lithium en Amérique Latine. Projets à l’arrêt ou annulés. 960 millions de $ de ventes de Lithium perdues.
Coronavirus halts lithium expansion in Argentina and Chile
Projects under development halted and significant investments cancelled, as impact of Covid-19 pandemic begins to hit home.

Despite expectations of greater development, the lithium sector in Argentina and Chile is being slowed by the coronavirus. Projects under development have been halted by the mandatory quarantine, while significant investments have already been cancelled.

Argentina, Bolivia and Chile are part of the so-called “lithium triangle” of South America, a region with some of the world’s highest concentrations of the metal. It is central to the expansion of electric vehicles, the demand for which is expected to increase in the coming years.

Due to the quarantine measures, lithium production is expected to drop globally by 110,000 tonnes this year, representing a loss of US$960 million, according to English consultancy Roskill. In Argentina, production is expected to drop 35 percent, and in Chile by 20 percent.

On top of live projects slowing down, planned investments have been delayed or cancelled, in several cases by Chinese companies. China is the world’s leading consumer of lithium, primarily for battery manufacturing.

While Chile is a mining country with extensive development and exports of US$40,000 million per year in minerals, Argentina still has an incipient mining development – with exports of US$3.7 billion. The government is seeking further development and hopes that lithium will do just that.

“Lithium production is highly vulnerable to the kinds of disruptions a pandemic like coronavirus can cause,” said Emily Hersh, an economist specialising in the lithium market. “Quarantine is going to affect the industry generally.”
https://www.batimes.com.ar/news/economy ... hile.phtml

Re: Le lithium, une flambée en perspective?

par energy_isere » 24 mai 2020, 11:46

en relation avec ce post du 27 juillet 2016 viewtopic.php?p=391826#p391826
au sujet du Lithium dans la Clayton Valley, Nevada.
Cypress releases positive PFS for Nevada lithium project

Canadian Mining Journal Staff | May 21, 2020

With an initial $493-million investment, Cypress Development‘s Clayton Valley lithium project in Nevada could produce 27,400 tonnes lithium carbonate equivalent (LCE) per year over a 40-year mine life, according to a prefeasibility study released this week.

Reserves at Clayton Valley are contained in a leachable lithium-bearing claystone.

The deposit is large, at surface, and flat-lying, which will allow for a very low strip ratio (0.15:1) and means no drilling or blasting is necessary in mining. The study envisions a mining rate of 15,000 t/d.

The project is located next to North America’s only lithium brine operation, the Albemarle Silver Peak mine.

The lithium in the deposit is amenable to leaching with dilute sulphuric acid leach followed by filtration, solution purification, concentration, and electrolysis to produce lithium hydroxide.

Cypress reports that metallurgical leach tests have demonstrated an average of 86.5% extraction of lithium into solution and 126.5 kg/t for acid consumption.

Metallurgical testing indicates low-cost processing can be achieved by leaching with low acid consumption and high lithium recovery.

Self-generated power from a 2,500 t/d acid plant is included in the project’s costs.

The Vancouver-based junior says testing to recover the lithium from solution has been successful, with the production of a concentrated lithium solution suitable for producing lithium hydroxide.

Before moving to the feasibility and permitting stage, the next step for Cypress will be a pilot plant study, estimated to cost $6.75 million.

Production figures are based on a probable reserve of 222 million tonnes grading 1,141 ppm lithium for 1.4 million tonnes LCE, calculated at a 900 ppm lithium cutoff grade.
https://www.mining.com/cypress-releases ... in-nevada/

Re: Le lithium, une flambée en perspective?

par energy_isere » 26 avr. 2020, 14:43

Plus de détails sur le projet Lithium - Etain - Tungsténe Cinovec.
Cinovec Lithium-Tin Project

The Cinovec lithium-tin project is a high-grade underground deposit located in Prague, Czech Republic. It is the biggest lithium deposit in Europe and one of the biggest tin resources being developed in the world.

European Metals Holdings fully owns the project and is also developing it with an investment of £383m ($482m).

Pre-feasibility study for the Cinovec lithium-tin project was completed in April 2017. The average rate of production at the project will be 1.68 million tons per annum (Mtpa), through its anticipated mine life of 21 years.

Cinovec lithium-tin project location, geology, and mineralisation

The Cinovec lithium-tin project is situated approximately 100km to the north-west of Czech Republic’s capital Prague, on the German border.

The deposit is associated with the Cinovec Zinnwald granite cupola and comprises irregular metasomatic greisen, which hosts quartz, zinnwaldite, fluorite, and adularia-K feldspar.

The thin and flat greisen zones enclosing quartz veins that are up to 2m-thick are part of the Cinovec deposit. The minerals contained in the deposit are cassiterite, scheelite, zinnwaldite, and wolframite.

Cinovec lithium-tin project reserves

The Cinovec lithium-tin project is expected to contain probable ore reserves of 34.5Mt graded at 0.65% Li2O and 0.09% Sn.

The indicated and inferred resources are estimated to be 695.9Mt, graded at 0.195% Li. Contained reserves are estimated to be seven million tonnes (Mt) of lithium carbonate-equivalent (LCE), 101,635t of tungsten, and 278,360t of tin.

Mining at Cinovec lithium-tin project

The mining method proposed to be used at the Cinovec lithium-tin project is long hole open stoping method. The ore body of the underground deposit is flat or shallow-dipping and will be mined with pillars support in addition to cement paste back-fill.

The mine will be accessed by two declines, with the first one comprising a conveyor to transport the material from the underground primary crusher to surface. The second decline will be used as a service decline for mineworkers, material, and as an intake airway.

Processing at Cinovec lithium-tin project

The Cinovec lithium-tin project is expected to provide 360,000 tonnes per annum (tpa) of mica concentrate to the lithium carbonate and hydroxide plants (LPP).

The processing plant will use a two-stage crushing plant, and screened in a double-deck vibratory screen.

The run-of-mine (ROM) ore will then be passed through a comminution plant for resizing to a particle size distribution (PSD) ideal for lithium recovery.

The product will be then conveyed to the beneficiation plant, which will produce lithium-rich magnetic stream (mica-concentrate) through the separation of paramagnetic zinnwaldite. It will also treat the non-magnetics by-product stream using gravity, flotation, magnetic, and electrostatic separation processes to produce tin and tungsten product.

The concentrate will be mixed with limestone, waste gypsum, and recycled sodium sulphate before roasting to convert the lithium into a lithium potassium sulphate. The product will be then leached to dissolve the contained lithium sulphate values.

Crude lithium carbonate is then precipitated from the purified leach solution through alum precipitation.

The beneficiation plant will also treat the non-magnetics by-product stream with gravity, flotation, magnetic, and electrostatic separation to produce tin and tungsten product.

Potassium sulphate, which is produced as a by-product, will be dried and packed for sale. The battery-grade lithium carbonate will be further processed to produce battery-grade lithium hydroxide.

Infrastructure facilities

The Cinovec lithium-tin project can be accessed through both road and rail. It is located near industrial and chemical plants with support services in Czech and Germany.

The site infrastructure includes a 22kV transmission line, and a well established water and communications network.

Underground infrastructure facilities will include mine service water systems, electrical reticulation system, control systems and instrumentation, trackless workshops, and underground crushers, tips, and conveyors.

Contractors involved

European Metals prepared the project PFS with support from independent consultants such as Widenbar and Associates, Bara Consulting, Ausenco, and Hatch Associates.
https://www.nsenergybusiness.com/projec ... n-project/