| 发明名称 |
Natural manganese di:oxide leaching process |
| 摘要 |
Controlled leaching of natural manganese dioxide is carried out with a 9-25 wt.% hydrochloric acid soln. at 80-95 deg C for 10-60 min, the pulp density being maintained at 10-40 wt.%.
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| 申请公布号 |
FR2718429(A1) |
申请公布日期 |
1995.10.13 |
| 申请号 |
FR19950004185 |
申请日期 |
1995.04.07 |
| 申请人 |
COMPANHIA VALE RIO DOCE |
发明人 |
MARCIO MATTA MACHADO JOSE (PAIXAO);COELHO AMARAL JOSE;LUIZ PIERONI JOSE |
| 分类号 |
C01G45/02;C22B47/00;(IPC1-7):C01G45/02 |
主分类号 |
C01G45/02 |
| 代理机构 |
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