公开(公告)号：WO2023017348A1

公开(公告)日：2023-02-16

申请号：PCT/IB2022/056964

申请日：2022-07-28

Applicant: TENOVA ADVANCED TECHNOLOGIES LTD.

Inventor： JABLONKA, Mark Stephen ,  DEE NOOR, Ziv ,  AHARON, Hani

IPC: C22B3/04 ,  C22B3/26 ,  C22B3/40 ,  C22B26/12 ,  C25C1/02

Abstract: A process for producing a purified aqueous lithium (sulfate) solution including: processing a lithium-containing raw material to produce a crude aqueous solution containing lithium sulfate; contacting the crude solution with an organic medium, in an extraction step to produce a lithium-loaded organic medium and a raffinate; stripping said lithium-loaded organic medium by means of an aqueous acid stripping solution (e.g., sulfuric acid), to extract the lithium cations from the lithium-loaded medium, to produce: the purified aqueous lithium (sulfate) solution and a stripped organic medium; separating the purified lithium solution from the stripped organic medium; recycling the stripped organic medium to the extraction step, the organic medium including the stripped organic medium; subjecting the raffinate to electrolysis to produce: an alkali (sodium) hydroxide solution contaminated with lithium and a sulfuric acid stream; and recycling the alkali hydroxide and sulfuric acid streams for use within the process.

公开(公告)号：EP4384644A1

公开(公告)日：2024-06-19

申请号：EP22855595.9

申请日：2022-07-28

Applicant: Tenova Advanced Technologies Ltd.

Inventor： JABLONKA, Mark Stephen ,  DEE NOOR, Ziv ,  AHARON, Hani

IPC: C22B3/04 ,  C22B3/26 ,  C22B3/40 ,  C22B26/12 ,  C25C1/02

CPC classification number: Y02P10/20 ,  C22B26/12 ,  C22B3/26 ,  C25B1/16 ,  C22B3/08