| 发明名称 |
Demineralization of brown coal |
| 摘要 |
Demineralization of coal in which a slurry of the coal to be treated is ground in the presence of aqueous acid such as HCl H2SO4 and H2CO3 and then the slurry is subjected to froth flotation in the presence of a gas selected from Cl2, SO2, or CO2.
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| 申请公布号 |
US3998604(A) |
申请公布日期 |
1976.12.21 |
| 申请号 |
US19740508262 |
申请日期 |
1974.09.23 |
| 申请人 |
INTERNATIONAL OILS EXPLORATION N.L. |
发明人 |
HINKLEY, DAVID WILLIAM |
| 分类号 |
B03B1/04;C10L9/02;(IPC1-7):B03B1/04 |
主分类号 |
B03B1/04 |
| 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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