发明名称 |
Weak acid process for producing dinitrotoluene |
摘要 |
This invention relates to an improved process for the production of dinitrotoluene wherein one is able to effectively employ a feed sulfuric acid, which is referred to as "weak acid" as the feed sulfuric acid for the nitration facility. The weak acid concentration, as feed, ranges from 86-91%, preferably 87-89% sulfuric acid by weight, to meet the total sulfuric acid requirements for the facility. This is accomplished by utilizing cocurrent processing in a mononitration zone and countercurrent nitration with respect to sulfuric acid in the dinitration zone.
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申请公布号 |
US5902910(A) |
申请公布日期 |
1999.05.11 |
申请号 |
US19970933706 |
申请日期 |
1997.09.19 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
MAZZAFRO, WILLIAM JOSEPH;CLARKE, STEPHEN IAN;SIMPSON, MARK SHEDRIC;CARR, RICHARD VAN COURT |
分类号 |
C07C201/08;C07C205/06;(IPC1-7):C07C205/00 |
主分类号 |
C07C201/08 |
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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