Invention Grant
- Patent Title: Process and method for producing crystallized metal sulfates
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Application No.: US17222264Application Date: 2021-04-05
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Publication No.: US12054401B2Publication Date: 2024-08-06
- Inventor: Robert John Fraser , Evangelos Stamatiou , Mark Joseph Machado , Henry Christian Immo von Schroeter , Mahmood Alemrajabi
- Applicant: Hatch Ltd. , Northvolt AB
- Applicant Address: CA Mississauga
- Assignee: Northvolt AB,Hatch Ltd.
- Current Assignee: Northvolt AB,Hatch Ltd.
- Current Assignee Address: SE Stockholm; CA Mississauga
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Main IPC: C01G53/10
- IPC: C01G53/10 ; C01G45/10 ; C01G51/10 ; C22B3/00 ; C22B7/00 ; C22B26/12 ; H01M10/0525 ; H01M10/54
Abstract:
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.
Public/Granted literature
- US20220009793A1 PROCESS AND METHOD FOR PRODUCING CRYSTALLIZED METAL SULFATES Public/Granted day:2022-01-13
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