发明授权
- 专利标题: Extractive distillation of mixtures containing aromatic and olefinic hydrocarbons
- 专利标题(中): 含芳烃和烯烃的混合物的萃取蒸馏
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申请号: US724049申请日: 1991-07-01
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公开(公告)号: US5145562A公开(公告)日: 1992-09-08
- 发明人: Ronald E. Brown , Fu-Ming Lee
- 申请人: Ronald E. Brown , Fu-Ming Lee
- 申请人地址: OK Bartlesville
- 专利权人: Phillips Petroleum Company
- 当前专利权人: Phillips Petroleum Company
- 当前专利权人地址: OK Bartlesville
- 主分类号: B01D3/40
- IPC分类号: B01D3/40 ; C07C7/08
摘要:
Aromatic hydrocarbons containing 6-10 carbon atoms per molecule are separated from close-boiling olefinic hydrocarbons by extractive distillation employing as solvent either N-methyl-2-thiopyrrolidone alone, or a mixture of N-(.beta.-mercaptoethyl)-2-pyrrolidone and N-methyl-2-thiopyrrolidone, or a mixture of N-(.beta.-mercaptoethyl)-2-pyrrolidone and N-methyl-2-pyrrolidone.
公开/授权文献
- US6123002A Method and apparatus for transverse cutting 公开/授权日:2000-09-26
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