| 发明名称 |
METODO PARA A FLOTACAO DE ESPUMA DE ALCATRAO |
| 摘要 |
<p>The froth flotation of coal is conducted in the presence of a conditioner of an oxygen containing compound of the formula: R1 @O-R2)n (I) wherein R1 and each R2 are independently saturated hydrocarbyls and n is 1 to 3.</p> |
| 申请公布号 |
BR8807493(A) |
申请公布日期 |
1990.03.27 |
| 申请号 |
BR19888807493 |
申请日期 |
1988.05.04 |
| 申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
ROBERT D. HANSEN;RICHARD R. KLIMPEL |
| 分类号 |
B03D1/008;(IPC1-7):B03D1/02 |
主分类号 |
B03D1/008 |
| 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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