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1. (WO1989012915) PROCESS FOR PRODUCING IMPROVED ELECTROLYTIC MANGANESE DIOXIDE

Pub. No.:    WO/1989/012915    International Application No.:    PCT/US1989/002624
Publication Date: Dec 28, 1989 International Filing Date: Jun 16, 1989
IPC: C01G 45/02
H01M 4/50
Applicants: KERR-McGEE CHEMICAL CORPORATION
Inventors: ANDERSEN, Terrell, N.
Title: PROCESS FOR PRODUCING IMPROVED ELECTROLYTIC MANGANESE DIOXIDE
Abstract:
There is provided a process for improving the alkaline discharge capacity of electrolytic manganese dioxide. The process comprises forming a mixture of electrolytic manganese dioxide, a carbon material and a strong base electrolyte and subjecting the mixture to electrochemical oxidation, in the presence of additional strong base electrolyte, while maintaining the mixture in an anodic condition. The process further comprises leaching the oxidized mixture to effect removal of any water soluble manganese salt byproducts formed during the electrochemical oxidation process.