发明名称 |
Promoters for froth flotation of coal |
摘要 |
Disclosed is an improved process wherein coal particles are beneficiated by froth flotation under coal froth flotation conditions to separate the desired coal particles from remaining unwanted ash and like gangue material. The improvement of the present invention comprises conducting the froth flotation in the presence of an effective proportion of a promoter which is at least C10 aliphatic carboxylic acid or an aliphatic ester thereof which is devoid of nitrogen atoms; the hydroxylated, oxidized, or alkoxylated derivative of said acid or ester promoters; and mixtures thereof.
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申请公布号 |
US4589980(A) |
申请公布日期 |
1986.05.20 |
申请号 |
US19840585176 |
申请日期 |
1984.03.01 |
申请人 |
SHEREX CHEMICAL COMPANY, INC. |
发明人 |
KEYS, ROBERT O. |
分类号 |
B03D1/004;B03D1/008;B03D1/01;B03D1/02;(IPC1-7):B03D1/02 |
主分类号 |
B03D1/004 |
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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