发明名称 |
Removal of water, methanol and acetone from propylene oxide by extractive distillation |
摘要 |
An extractive distillation agent consisting essentially of 2-hydroxyethyl 2-hydroxyethylcarbamate, and is fed to an extractive distillation column used for the distillation of propylene oxide contaminated with water to obtain an overhead distillate fraction consisting of essentially anhydrous propylene oxide, and a heavier bottoms distillation fraction containing substantially all of the 2-hydroxyethyl 2-hydroxyethycarbamate, and water introduced into the disillation column.
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申请公布号 |
US5116465(A) |
申请公布日期 |
1992.05.26 |
申请号 |
US19910786688 |
申请日期 |
1991.11.01 |
申请人 |
TEXACO CHEMICAL COMPANY |
发明人 |
YEAKEY, ERNEST L.;MARQUIS, EDWARD T. |
分类号 |
B01D3/40;C07D301/32 |
主分类号 |
B01D3/40 |
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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