| 发明名称 |
Production of aromatic sulphones. |
| 摘要 |
<p>A process for the production of aromatic sulphones involves providing a substantially anhydrous starting melt in which the relative concentrations of sulphonic acid and sulphone are on the sulphone-rich side of the relevant eutectic in the sulphonic acid/sulphone phase diagram. The sulphone is purified by fractional melt crystallisation.</p> |
| 申请公布号 |
EP0382441(A2) |
申请公布日期 |
1990.08.16 |
| 申请号 |
EP19900301162 |
申请日期 |
1990.02.05 |
| 申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
ATHERTON, JOHN HEATHCOTE;GRIFFIN, JAMES BENEDICT;FAWKNER, ROBERT DOUGLAS;HODGKINSON, IAN |
| 分类号 |
C07C315/00;C07C315/06;C07C317/14;C07C317/22 |
主分类号 |
C07C315/00 |
| 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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