发明名称 |
Removal of dinitrotoluene from process water |
摘要 |
Reduction of dinitrotoluene impurity in water is achieved by distillation in the presence of nitric acid. A suitable process for such reduction comprises (a) contacting said composition with nitric acid to provide a nitric acid-containing composition, (b) distilling at least a portion of said water in said nitric acid-containing composition to provide vaporized water containing a reduced concentration of said dinitrotoluene, and (c) separating said vaporized water from said nitric acid-containing composition.
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申请公布号 |
US5763696(A) |
申请公布日期 |
1998.06.09 |
申请号 |
US19970827326 |
申请日期 |
1997.03.26 |
申请人 |
ARCO CHEMICAL TECHNOLOGY, L.P. |
发明人 |
QUAKENBUSH, ALLEN B.;KEYVANI, MAJID N.;FULLINGTON, MICHAEL C.;MEYER, JAMES L. |
分类号 |
B01D3/34;C07C201/12;(IPC1-7):C07C205/00 |
主分类号 |
B01D3/34 |
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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