发明名称 |
Water removal in purification of vinyl chloride |
摘要 |
Removal of water in a vinyl chloride monomer purification system is achieved through (1) providing a distillation column for separation of a liquid admixture of vinyl chloride, hydrogen chloride, and water into (a) an essentially pure vinyl chloride product stream and (b) a hydrogen chloride distillate stream; and (2) placing a drying system in fluid communication with the distillation column midsection at a connection point where the water is at sufficient concentration to provide a useful mass transfer flux of water from a withdrawn midsection stream into a drying agent.
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申请公布号 |
US6391160(B1) |
申请公布日期 |
2002.05.21 |
申请号 |
US20010964121 |
申请日期 |
2001.09.25 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
LOCKHART WAYNE A.;NIMCHUK TERRENCE M.;BROCHU JOSEPH J. D.;SMEDING RALPH |
分类号 |
C07C17/38;C07C17/383;(IPC1-7):B01D3/00 |
主分类号 |
C07C17/38 |
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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