公开(公告)号：US3842000A

公开(公告)日：1974-10-15

申请号：US18746871

申请日：1971-10-07

Applicant: BATTELLE DEVELOPMENT CORP

Inventor： DAWSON G

IPC: C02F1/42 ,  B01D15/04 ,  B01J45/00 ,  C01C1/10

CPC classification number: C01C1/10 ,  B01D61/246 ,  B01D65/02 ,  B01D67/0069 ,  B01D69/141 ,  B01D71/024 ,  B01D2321/162 ,  B01D2325/42 ,  B01J45/00

Abstract: 1. A PROCESS FOR SEPARATING AMMONIA IN THE NON-IONIC STATE FROM AQUEOUS STREAMS, COMPRISING: 81) ADJUSITNG THE STREAM TO PH 9-12 SO THAT A SUBSTANTIAL AMOUNT OF AMMONIA I N THE STREAM IS IN THE EXCHANGEABLE, NON-IONIC FORM, AND (2) CONTACTING THE STREAM WITH A WATER-INSOLUBLE ION EXCHANGE MATERIAL HAVING METAL CATIONS FIRMLY BOUND IN ITS MATRIX TO PREVENT ANY SUBSTANTIAL LEACHING OF THE METAL CATIONS FROM THE ION-EXCHANGE MATERIAL, THE METAL CATIONS HAVING A POSITIVE AMMINE COMPLEX FORMATION CONSTANT AND FORMING AMMONIA COMPLEXES BY ATTACHMENT OF NON-IONIC AMMONIA TO THE METAL CATIONS, THEREBY REMOVING THE NON-IONIC AMMONIA FROM THE AQUEOUS STREAM.