Reduce investment risk for the investor.<\/li>\n<\/ul>\nThe European Raw Materials Alliance (ERMA) aims to make Europe economically more resilient by diversifying its supply chains, creating jobs, attracting investments to the raw materials value chain, fostering innovation, training young talents and contributing to the best enabling framework for raw materials and the circular economy worldwide.<\/p>\n
The alliance addresses the challenge of securing access to sustainable raw materials, advanced materials, and industrial processing know-how. By 2030, ERMA\u2019s activities will increase the production of raw and advanced materials and address the circular economy by boosting the recovery and recycling of critical raw materials.<\/p>\n
ERMA will identify barriers, opportunities and investment cases to build capacity at all stages of the raw materials value chain, from mining to waste recovery. It complies with EU competition rules and EU international trade commitments. Volt looks forward to being an active member of the EBA and the ERMA with the support and facilitation opportunities that both alliances provide.<\/p>\n
Bunyu Project \u2013 development ready and scaleable<\/h3>\n Volt\u2019s subsidiary, Volt Graphite Tanzania (VGT), is a graphite development company based in Dar es Salaam, Tanzania. VGT\u2019s strategy is to develop its graphite supply chain with a graphite mining and processing plant to produce flake graphite from the Bunyu graphite project\u2019s extensive resources. Based on a two-stage development strategy, the aim is for VGT to become one of the globally significant and sustainable natural flake graphite producers in the world.<\/p>\n
The Bunyu Project has the largest graphite resource in Tanzania and one of the largest in the world. This has been achieved with exploration conducted over only 6% of the total tenement area of approximately 1,100km2<\/sup>. The project size and the expected significant increase in global demand for flake graphite support the strategy to develop the Bunyu Project into one of the largest graphite mines in the world.<\/p>\nThe Bunyu Project has its key development approvals in place for the Stage 1 and, importantly, Stage 2 project footprint. Volt received the Environmental Impact Assessment Certificate from the National Environment Management Council of Tanzania for the Bunyu project development and received two mining licences from the Mining Commission of the Ministry of Minerals of Tanzania.<\/p>\n
The Bunyu graphite deposits are suited to conventional drill and blast and load and haul open pit mining methods. For Stage 1, ore will be fed to the processing plant at a rate of 400,000 tpa to produce a nominal 20-24,000 tpa graphite product averaging 92-96% TGC at a 93% recovery.<\/p>\n
The processing plant will incorporate the following unit process operations:<\/p>\n
\nROM ore will be stage-crushed in primary and secondary crushers, with associated screening to recirculate the oversize back to the crushers and to produce a top-sized product ahead of grinding;<\/li>\n Ore will be wet ground by rod mill for concentration by flotation;<\/li>\n Flotation will recover graphite by rougher flotation followed by five cleaning stages, with regrind milling between stages, to target coarse graphite recovery;<\/li>\n Graphite product will be thickened, filtered, dried, screened and packaged in 1-tonne bags; and<\/li>\n Flotation tailings will be thickened to maximise water recovery and discharged into a constructed Tailings Storage Facility.<\/li>\n<\/ul>\nThe graphite products are subsequently transported via sealed road to port for export to overseas customers and provide feedstock for Volt\u2019s downstream processing facilities planned for Europe and the United States.<\/p>\n
The principal production objective of the plant design is a marketable high-grade graphite product sized in ranges to target appropriate market segments and maximise the value of the graphite products produced. Maximising the yield of high-value coarse flake is a key part of this objective.<\/p>\n
Battery anode material<\/h3>\n SPG is manufactured from flake graphite concentrates produced by graphite mines and is the battery anode material (BAM) used in LIBs. The first part of the process consists of micronising, rounding and purifying flake graphite to produce uncoated SPG (USPG).<\/p>\n
In a traditional flowsheet, graphite concentrates are milled or micronised and then shaped into a sphere. The particles that have been spherodised are usually purified by an environmentally damaging acid leaching process. In addition, only 35%-40% of the graphite is spherodised and converted into battery-grade material. The non-spherical particles, amounting to 65%-70% of the feed in the traditional circuit, are collected and sold into lower-margin markets such as re-carburisers, pencils, aftermarket brake pads, and others.<\/p>\n
With the flowsheet developed by Volt\u2019s technical adviser, AETC, to produce SPG, purification is completed first, with all of the subsequent sizing and shaping undertaken with purified material. The purification process was undertaken exclusively using high-temperature furnaces, and no acid leaching or caustic bakes were employed.<\/p>\n
The main benefits Volt enjoys from this inverted flowsheet are:<\/p>\n
\nReduced wear and tear on shaping mill parts (due to processing being accomplished with high purity graphite, which is a natural lubricant); and<\/li>\n The ability to divert non-spherical portions of the purified graphite to higher-margin markets such as conductivity enhancement applications in LIB cathodes.<\/li>\n<\/ul>\nThe recent test work undertaken on Bunyu natural flake graphite has demonstrated successful spheronisation and purification results with the inverted flow sheet that Volt is adopting for its downstream SPG operations. The introduction of this flowsheet will allow Volt to not only convert a significant portion of its graphite into battery-ready anode material for LIBs, but will also generate a range of ultra-high purity by-products for use in battery cathodes and in a variety of valuable non-battery applications.<\/p>\n
Volt continues to develop its pathway to becoming a producer of BAM in its selected markets and will be using technology partnerships to accelerate its progression.<\/p>\nScanning Electron Microscope image of Volt coated SPG (battery anode material)<\/figcaption><\/figure>\nWith two world-class graphite resources incorporated in a strategically located operating mine and processing plant in Ukraine and a development-ready project in Tanzania, Volt is well-positioned to become a globally significant graphite producer. Volt plans to become a battery anode material producer in Europe and the United States based on an integrated graphite supply chain using graphite produced from its operations. This provides security and continuity of supply for the business and the ability to manage product quality and ESG through the graphite supply chain to the LIB and other graphite products.<\/p>\n
Please note, this article will also appear in the eighth edition of our\u00a0<\/em><\/strong>quarterly publication<\/strong><\/em><\/a>.<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"Volt is implementing an integrated mine and graphite supply chain to meet stakeholder requirements for the crucial battery anode material. Trevor Matthews, Managing Director, explains more. Transport contributes approximately one-quarter of all energy-related carbon dioxide emissions to the atmosphere, which is set to reach one-third, growing faster than any other sector. The global passenger car […]<\/p>\n","protected":false},"author":19,"featured_media":15682,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[24502],"tags":[24203,529,24335,582,24207,24134,24231],"acf":[],"yoast_head":"\n
Volt\u2019s complete solution for meeting graphite supply chain for LIBs<\/title>\n \n \n \n \n \n \n \n \n \n \n \n \n \n\t \n\t \n\t \n \n \n \n \n \n\t \n\t \n\t \n