Title:
PRODUCING METHOD OF PURIFIED LITHIUM COMPOUND AND PRODUCING METHOD OF LITHIUM TRANSITION METAL COMPOSITE OXIDE
Document Type and Number:
Japanese Patent JP2020029374
Kind Code:
A
Abstract:
To provide a producing method of a purified lithium compound having excellent production efficiency of the purified lithium compound, being applicable to a wide variety of kinds of lithium compounds, and capable of reducing energy consumption for obtaining the purified lithium compound, and a producing method of a lithium transition metal composite oxide using the purified lithium compound obtained by the producing method thereof.SOLUTION: The producing method of the purified lithium compound includes a disintegrating step of loosening the aggregation of a crude lithium compound containing a magnetic substance, and a magnetic separation treatment step of removing the magnetic substance from a disintegrated crude lithium compound by applying a dry magnetic separation to the disintegrated crude lithium compound using a magnetic separator.SELECTED DRAWING: Figure 1
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Inventors:
TAKAKUWA MASAHIRO
Application Number:
JP2018154203A
Publication Date:
February 27, 2020
Filing Date:
August 20, 2018
Export Citation:
Assignee:
TANAKA CHEMICAL CORP
International Classes:
C01D15/08; B03C1/00; B03C1/005; B03C1/025; C01D15/00; C01G45/12; C01G51/00; C01G53/00; H01M4/505; H01M4/525
Domestic Patent References:
| JP2017220334A | 2017-12-14 | |||
| JP2015051384A | 2015-03-19 | |||
| JP2013043911A | 2013-03-04 | |||
| JP2014229567A | 2014-12-08 |
Foreign References:
| WO2011105504A1 | 2011-09-01 |
Other References:
"医薬品・化粧品・ファインケミカルズ製造における磁性異物除去技術", 化学装置, vol. 第５６巻 第７号, JPN6017033271, July 2014 (2014-07-01), pages 53 - 57, ISSN: 0005014511
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Shuichi Sumiyoshi
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Shuichi Sumiyoshi