发明授权
- 专利标题： Method of making composite porous carbonaceous membranes
- 专利标题（中）： 制造复合多孔碳膜的方法
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申请号： US229081申请日： 1994-04-18
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公开(公告)号： US5431864A公开(公告)日： 1995-07-11
- 发明人: Madhukar B. Rao , Shivaji Sircar , Timothy C. Golden
- 申请人： Madhukar B. Rao , Shivaji Sircar , Timothy C. Golden
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： B01D53/22
- IPC分类号： B01D53/22 ; B01D69/10 ; B01D69/12 ; B01D69/14 ; B01D71/02 ; B01J20/28 ; C04B38/00 ; C04B41/50 ; C04B41/85 ; C10G70/04 ; B29L31/14 ; C01B31/08
摘要：
Improved composite semipermeable membranes including microporous carbonaceous adsorptive material supported by a porous substrate for use in separating multicomponent gas mixtures in which certain components in the mixture adsorb within the pores of the adsorptive material and diffuse by surface flow through the membrane to yield a permeate stream enriched in these components. Methods for making the improved composite membranes are described including one or more oxidation steps which increase the membrane permeability and selectivity.
公开/授权文献
- US4872627A Locking tripod leg 公开/授权日：1989-10-10
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