The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2025
Filed:
Nov. 04, 2019
Ecopro Innovation Co., Ltd., Chungcheongbuk-do, KR;
Min-Woo Lee, Chungcheongbuk-do, KR;
Suk-Joon Park, Chungcheongbuk-do, KR;
Myung Gyu Lee, Gyeonggi-do, KR;
Kwang Seok Lee, Chungcheongbuk-do, KR;
Jong Sun Park, Chungcheongbuk-do, KR;
Da-Mo-A Kim, Chungcheongnam-do, KR;
ECOPRO INNOVATION CO., LTD., Chungcheongbuk-do, KR;
Abstract
The present invention relates to a method of producing lithium hydroxide from a lithium concentrate through sodium sulfate addition and roasting. The method effectively recover lithium ions from the lithium concentrate, minimizes production of byproducts, and produces high-purity lithium hydroxide. By mixing a concentrate containing lithium with sodium sulfate (NaSO), roasting the concentrate, and leaching the roasted concentrate with water, it is possible to recover lithium ions at a high recovery rate and to produce high-purity lithium hydroxide monohydrate.