Composite type membrane in use for penetrating, vaporizing and separating benzene from cyclohexane, and preparation method |
Title： |
| Composite type membrane in use for penetrating, vaporizing and separating benzene from cyclohexane, and preparation method |
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Application Number： |
200710117722 |
Application Date： |
2007/06/22 |
Announcement Date： |
2007/12/26 |
Pub. Date： |
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Publication Number： |
101091877 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
B01D 69/12, B01D 71/64, B01D 71/70 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Li Jiding, Chen Jian, Ye Hong, Lin Yangzheng |
Key Words： |
Composite type membrane, penetrating, vaporizing, separating, benzene, cyclohexane |
Abstract： |
The invention relates to a method for producing composite membrane used in filtering and separating benzene and cyclohexane, which belongs to the seepage vaporization membrane separation area. Its characteristic lies in: Taking the polyether imide as the basement membrane, and taking the dimethyl silicone polymer as coating compound membrane. The producing method is that, firstly, dissolves polyether imide as basement membrane, and then dissolves dimethyl silicone polymer as intermixture. Putting in cross-linking agent and catalyst in turn with stirring to make them to be well-proportioned and then painting the stratum disjunctum fluid on the basement membrane and heat them. The invention can combine the emission coating with the basement membrane tightly, which solves the abscission question in industry. It can separate the benzene and the cyclohexane efficiently. |
Claim： |
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PCT： |
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