发明名称 |
Separation of coal from waste material |
摘要 |
A method is disclosed for the separation of coal from run of mine (ROM) coal containing particles of coal and refuse, which comprises conditioning the ROM coal with a coupling agent capable of selectively coating the particulate coal to the substantial exclusion of coating the refuse, which coupling agent is at least one alcohol containing from about 6 to about 22 carbon atoms. Combined with said coupling agent is a fluorescent dye in a quantity to make the coated particles of coal fluoresce upon excitation to a degree sufficient to distinguish the coated coal particles from the substantially non-coated refuse. Exciting (e.g. as with ultraviolet light) the fluorescent dye coupled to the coal particles induces fluorescence and enables separating the fluorescing, coated coal particles from substantially non-fluorescing, non-coated refuse particles.
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申请公布号 |
US4208273(A) |
申请公布日期 |
1980.06.17 |
申请号 |
US19780897779 |
申请日期 |
1978.04.19 |
申请人 |
OCCIDENTAL RESEARCH CORP |
发明人 |
MESSENGER, DAVID F;MOUDGIL, BRIJ M |
分类号 |
B03B1/04;B03B13/04;B07C5/342;(IPC1-7):B07C5/02 |
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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