发明名称 |
PROCEDE DE PRODUCTION DE BIOXYDE DE MANGANESE ACTIF AYANT UNE COMPOSITION CHIMIQUE AMELIOREE |
摘要 |
An active natural manganese dioxide mineral for use in dry battery cells is produced from a natural manganese dioxide ore by reacting the ore or a preconcentrate thereof with a solution of an acid. The acid reacts with the carbonates, such as calcium carbonate, to produce water-soluble salts which are then washed away. The resultant mineral can have an MnO2 content of 80% by weight or more. |
申请公布号 |
FR2346291(A1) |
申请公布日期 |
1977.10.28 |
申请号 |
FR19770009377 |
申请日期 |
1977.03.29 |
申请人 |
ELEUSIS BAUXITE MINES MINING IND |
发明人 |
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分类号 |
C01G45/02;H01M4/50;(IPC1-7):01G43/02;01M4/50 |
主分类号 |
C01G45/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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