发明名称 |
Separation of 3-methyl-2-butanone from formic acid by extractive distillation with sulfolane |
摘要 |
3-Methyl-2-butanone cannot be separated from formic acid by distillation because of the presence of the maximum boiling azotrope. 3-Methol-2-butanoe can be readily removed from formic acid by extractive distillation using sulfolane. Typical effective agents are: sulfolane and ethylene glycol diacetate; sulfolane, m-toluic acid and anisole.
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申请公布号 |
US4957595(A) |
申请公布日期 |
1990.09.18 |
申请号 |
US19890432864 |
申请日期 |
1989.11.07 |
申请人 |
BERG, LLOYD |
发明人 |
BERG, LLOYD;BENTU, GEORGE |
分类号 |
C07C45/83;C07C51/44 |
主分类号 |
C07C45/83 |
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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