Is Birimian Limited Making A Footprint With Battery Chemicals Industry?

  • Dec 03, 2018 AEDT
  • Team Kalkine
Is Birimian Limited Making A Footprint With Battery Chemicals Industry?

Birimian Limited (ASX: BGS) for the conversion of a spodumene sample from the Goulamina Lithium Project has announced the following results from the initial proof of concept test work. The test work program was undertaken along with the further metallurgical testwork program required for the Feasibility Study for the Project and was of an introductory nature. During the earlier metallurgical test work program completed for the Pre-Feasibility Study on a small sample of 1.5kg of flotation concentrate that was produced, the work was conducted at the ALS Balcatta laboratories. Further testwork and analysis of Goulamina spodumene is warranted as this was limited initial test work on a small sample.

The 6% spodumene concentrate sample from the Project can be converted to a product that contains 99.65% Li2CO3 as confirmed by the preliminary testwork of the company. A minimum of 99.50% Li2CO3 is generally accepted industry standard for battery grade. The test work program report concluded that 100% conversion to beta- spodumene, indicating that materially all lithium is present as spodumene is demonstrated by Calcination of Goulamina spodumene concentrate to convert the natural alpha-spodumene to beta-spodumene. Followed by sulphation roasting, leaching, impurity removal, evaporation, precipitation and bicarbonation, Betaisation of a bulk concentrate sample achieved an overall lithium extraction of 82.66%. Also, Li2CO3 product contained more than 99.5% Li2CO3.

Due to the limits of the test work procedure some impurities were higher than the battery grade specifications, the current flowsheet assumed and the operating conditions of the individual process steps not having been optimized. Spodumene concentrate from Goulamina will produce battery grade lithium carbonate or hydroxide, which is reasonable to expect that with minor changes to the flowsheet used for this Proof of Concept test work and optimization of some of the process steps. As tested in this program, Goulamina spodumene concentrate is suitable for conversion to lithium carbonate via conventional processing routes. On a conversion option for Goulamina spodumene further test work is warranted.

Birimian Limited is currently under a suspended status but last traded at a price of $0.200. The initial study demonstrates suitability of concentrate for battery chemicals.


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