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:
Dec. 10, 2024
Filed:
Sep. 29, 2017
Posco, Pohang-si, KR;
Research Institute of Industrial Science & Technology, Pohang-si, KR;
Juyoung Kim, Pohang-si, KR;
Ki Young Kim, Pohang-si, KR;
Woo Chul Jung, Pohang-si, KR;
Kwang Seok Park, Pohang-si, KR;
Hyunwoo Lee, Pohang-si, KR;
Woonkyoung Park, Pohang-si, KR;
Sang Won Kim, Pohang-si, KR;
Jung Kwan Park, Pohang-si, KR;
Heok Yang, Pohang-si, KR;
Sung Kook Park, Pohang-si, KR;
Seung Taek Kuk, Pohang-si, KR;
POSCO CO., LTD, Pohang-si, KR;
RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY, Pohang-si, KR;
Abstract
This disclosure relates to a method of preparing a lithium compound that includes preparing a lithium phosphate, mixing the lithium phosphate with sulfuric acid to obtain a mixture, converting the lithium phosphate into lithium sulfate through a reaction in the mixture, and separating the lithium sulfate in a solid phase, wherein in the step of converting the lithium phosphate into lithium sulfate through the reaction in the mixture, a sum concentration ([P+S] mol/L) of phosphorus (P) and sulfur (S) in a liquid phase of the mixture is greater than or equal to 5 mol/L.