发明名称 |
Process for preparing organic acids |
摘要 |
A process for preparing a mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone but substantially insoluble in water which comprises subjecting a slurry containing coal to reaction with aqueous nitric acid in an atmosphere containing molecular oxygen, mechanically separating the solids in the resulting slurry, extracting the resulting solids with a polar solvent to separate therefrom a mixture of polycyclic aromatic polycarboxylic acids substantially soluble in acetone but substantially insoluble in water and a mixture of polycyclic aromatic polycarboxylic acids substantially insoluble in acetone and substantially insoluble in water.
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申请公布号 |
US4195186(A) |
申请公布日期 |
1980.03.25 |
申请号 |
US19780924054 |
申请日期 |
1978.07.12 |
申请人 |
GULF RESEARCH & DEVELOPMENT |
发明人 |
SABOURIN, EDWARD T;SCHULZ, JOHANN G D |
分类号 |
C07C51/31;(IPC1-7):C07C51/20 |
主分类号 |
C07C51/31 |
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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