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:

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