发明名称 |
VERFAHREN UND KONDITIONIERMITTEL ZUR GEWINNUNG VON FEINKOHLE |
摘要 |
<p>Recovery of finely-divided coal comprises treating its aq. suspension with a sulphosuccinate of formula (I) (where R=3-20C opt. branched alkyl; M is a water-solubilising cation). The mixt is then froth floated to give, as the floating material, a coal concentrate. Pref. (I) have M=Na and R=isobutyl amyl, (cyclo) hexyl, 2-ethylhexyl or isodecyl. Pref. the mixt. also contains a frothing agent (II) esp a mixt. of 4-8C alcohols. The recovered coal has a reduced ash content e.g. about 6% compared with 42% for untreated coal.</p> |
申请公布号 |
DD142891(A5) |
申请公布日期 |
1980.07.16 |
申请号 |
DD19790212242 |
申请日期 |
1979.04.16 |
申请人 |
AMERICAN CYANAMID CO,US |
发明人 |
WANG,SAMUEL S.,CN;SMITH JUN,EUGENE L.,US;LEWELLYN,MORRIS E.,US |
分类号 |
C10L9/00;B03D1/001;B03D1/012;B03D1/02;C10L5/00;(IPC1-7):C10L9/00 |
主分类号 |
C10L9/00 |
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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