Edulcoration treatment method of electrolytic manganese dioxide semi-finished products

The invention belongs to the field of processing of battery materials, and particularly relates to an edulcoration treatment method of electrolytic manganese dioxide semi-finished products. The preparation method comprises the following steps: a rinsing procedure, milling, magnetic separation, scree...

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Bibliographic Details
Main Authors WU YUANHUA, HUANG YUYING, XU XIONGXIN, WANG BANGYI, FAN RUPING, LU YUNPING
Format Patent
LanguageChinese
English
Published 12.02.2014
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS
METALLURGY
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Summary:The invention belongs to the field of processing of battery materials, and particularly relates to an edulcoration treatment method of electrolytic manganese dioxide semi-finished products. The preparation method comprises the following steps: a rinsing procedure, milling, magnetic separation, screening, mixing and the like, namely rinsing by 20-30% LiOH alkali liquor to pickle and neutralize until the pH is 7.5-8.0; carrying out backwashing by using 3-4% sulfuric acid to remove impurities; carrying out powdery magnetic separation to remove impurities including elementary substance Fe and other heavy metals in the product after milling, and subsequently carrying out particle size distribution control on the product by adopting a swing sieve technology coarse particles and other nonmetallic impurities mixed in the powder; and mixing, so as to obtain the electrolytic manganese dioxide product. By adopting the method disclosed by the invention, the content of manganese dioxide in the electrolytic manganese dioxi
Bibliography:Application Number: CN20131546407