Title: Ammonia/water membrane separation and technique for recovery of ammonia
Application Number: 93119230 Application Date: 1993.10.21
Publication Number: 1087874 Publication Date: 1994.06.15
Approval Pub. Date: Granted Pub. Date: 1996.08.07
International Classifi-cation: B01D61/00,C01C1/02,C02F1/44,C02F1/58
Applicant(s) Name: Zhejiang Univ. Address: 310027
Inventor(s) Name: Xu Youyi, Xu Hong
Attorney & Agent: CHEN ZHENXIANG
Abstract:
     An ammonia-water separation process by means of pressure reduction method uses strong-hydrophobicity micropore membrane that is not in contact with sucking liquid (for example, acid), so the deammoniation of high-concentration waste ammonia liquid may be completed and the ammonia is recovered in forms of gaseous or liquid ammonia, ammonia water and ammonium salts. The micropore membrane has long service life.
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