- 专利标题： Process and method for producing crystallized metal sulfates
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申请号： US17222264申请日： 2021-04-05
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公开(公告)号： US12054401B2公开(公告)日： 2024-08-06
- 发明人: Robert John Fraser , Evangelos Stamatiou , Mark Joseph Machado , Henry Christian Immo von Schroeter , Mahmood Alemrajabi
- 申请人： Hatch Ltd. , Northvolt AB
- 申请人地址： CA Mississauga
- 专利权人： Northvolt AB,Hatch Ltd.
- 当前专利权人： Northvolt AB,Hatch Ltd.
- 当前专利权人地址： SE Stockholm; CA Mississauga
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- 主分类号： C01G53/10
- IPC分类号： C01G53/10 ; C01G45/10 ; C01G51/10 ; C22B3/00 ; C22B7/00 ; C22B26/12 ; H01M10/0525 ; H01M10/54
摘要：
A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separating the crystallized metal sulfate from the mother liquor; basifying a portion of the mother liquor to convert the uncrystallized metal sulfate to a basic metal salt; and using the basic metal salt upstream of crystallizing the metal sulfate. So crystallized, the generated metal sulfate may be battery-grade or electroplating-grade.
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