发明授权
- 专利标题： Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
- 专利标题（中）： 用半透膜在环氧乙烷/乙二醇工艺中处理含杂质液体物流
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申请号： US457923申请日： 1989-12-27
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公开(公告)号： US5034134A公开(公告)日： 1991-07-23
- 发明人: Kathleen F. George , Lise Dahuron , John H. Robson , George E. Keller, II
- 申请人： Kathleen F. George , Lise Dahuron , John H. Robson , George E. Keller, II
- 申请人地址： CT Danbury
- 专利权人： Union Carbide Chemicals And Plastics Technology Corporation
- 当前专利权人： Union Carbide Chemicals And Plastics Technology Corporation
- 当前专利权人地址： CT Danbury
- 主分类号： B01D61/02
- IPC分类号： B01D61/02 ; B01D71/16 ; B01D71/68 ; C07C29/76 ; C07C31/20 ; C07C41/36 ; C07D301/10 ; C07D301/32 ; C08G65/40 ; C08G75/00 ; C08G75/20
摘要：
A method is disclosed for separating impurity components, UV absorbers and/or UV absorber precursors contained in an ethylene glycol-water stream thereby desirably allowing the recovery of the glycols contained in such stream in an economical and efficient manner. Specifically, these undesirable components are separated by contacting the ethylene glycol-water stream with a suitable semi-permeable membrane to effect such separation.
公开/授权文献
- US4522621A Artificial insemination apparatus 公开/授权日：1985-06-11
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