发明名称 |
Purification of 1,4-butanediol |
摘要 |
Color-forming materials or their precursors present in crude 1,4-butanediol are reduced more efficiently by subjecting the crude 1,4-butanediol to distillation under conditions wherein substantially all the water present in the crude 1,4-butanediol is first removed and then the 1,4-butanediol with reduced water content is further distilled to remove the color-forming materials.
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申请公布号 |
US4383895(A) |
申请公布日期 |
1983.05.17 |
申请号 |
US19810304106 |
申请日期 |
1981.09.21 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
ERNST, RICHARD E.;PAUL, DONALD C. |
分类号 |
C07C29/80;(IPC1-7):B01D3/10 |
主分类号 |
C07C29/80 |
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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