Polyelectrolyte membrane for osmotic vaporization and method for making said membrane |
Title: |
Polyelectrolyte membrane for osmotic vaporization and method for making said membrane |
|
Application Number: |
03119676 |
Application Date: |
2000/06/09 |
Announcement Date: |
2003/10/29 |
Pub. Date: |
|
Publication Number: |
1451467 |
Announcement Number: |
1175924 |
Grant Date: |
2004-11-17 |
Granted Pub. Date: |
2004-11-17 |
ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
B01D 61/36, B01D 71/38 |
Applicant(s): |
Tsinghua Univ. |
Inventor(s): |
Chen Cuixian, Han Binbing, Zou Jian |
Key Words: |
Polyelectrolyte membrane, osmotic vaporization |
Abstract: |
A process for preparing polyelectrolyte membrane or composite polyelectrolyte membrane used for osmotic evaporation includes dissolving polyvinyl alcohol in water, adding potassium hydroxide and cationic ethering agent, reaction, filtering, defoaming, applying it on polyacrylonitrile based film and baking. Its advantages are high penetrability and high separating factor. |
Claim: |
|
Priority: |
|
PCT: |
|
LegalStatus: |
|