| 发明名称 | Processes for preparing 4-chlorobenzenesulfonic acid and 4,4′-dichlorodiphenyl sulfone | ||
| 摘要 | Processes for preparing 4-chlorobenzenesulfonic acid from 2-chlorobenzenesulfonic acid and/or 3-chlorobenzenesulfonic acid, which processes include the conversion of 2-chlorobenzenesulfonic acid and/or 3-chlorobenzenesulfonic acid to 4-chlorobenzenesulfonic acid in the presence of sulfuric acid at a temperature of 100 to 300° C.; as well as processes for preparing 4,4′-dichlorodiphenyl sulfone, which include such described processes for preparing 4-chlorobenzenesulfonic acid. | ||
| 申请公布号 | US8853444(B2) | 申请公布日期 | 2014.10.07 |
| 申请号 | US201113041536 | 申请日期 | 2011.03.07 |
| 申请人 | BASF SE | 发明人 | Deck Patrick;Schelling Heiner;Garlichs Florian |
| 分类号 | C07C315/00;C07C303/22 | 主分类号 | C07C315/00 |
| 代理机构 | Drinker Biddle & Reath LLP | 代理人 | Drinker Biddle & Reath LLP |
| 主权项 | 1. A process for preparing 4-chlorobenzenesulfonic acid from 2-chlorobenzenesulfonic acid and/or 3-chlorobenzenesulfbnic acid, comprising the conversion of 2-chlorobenzenesulfonic acid and/or 3-chlorobenzenesulfonic acid to 4-chlorobenzenesulfonic acid in the presence of sulfuric acid at a temperature of 100 to 300° C. | ||
| 地址 | DE | ||