公开(公告)号：WO1997044276A1

公开(公告)日：1997-11-27

申请号：PCT/US1997007187

申请日：1997-05-01

Applicant: ALLIEDSIGNAL INC.

Inventor： ALLIEDSIGNAL INC. ,  CHANG, Chin-Hsiung, Chang ,  STELLA, Albert, S. ,  GUALDRON, Miquel, A. ,  FISHER, Wende, M. ,  POOLE, Mike

IPC: C01B21/14

CPC classification number: C01B21/1445 ,  C01B21/1463 ,  C01B21/1481

Abstract: An improved ion exchange process for purifying and/or concentrating hydroxylamine from an aqueous solution comprising hydroxylammonium ion and counter anions wherein ion exchange process conditions including effluent pH, effluent conductivity, and ion exchange bed height can be monitored and used to identify when to switch from an ion exchange step feed to a water wash feed, and to switch from a desorbent step to a water rinse step.

Abstract translation: 用于从包含羟基铵离子和反阴离子的水溶液中纯化和/或浓缩羟胺的改进的离子交换方法，其中可以监测包括流出物pH，流出物导电性和离子交换床高度在内的离子交换工艺条件并用于鉴定何时切换 离子交换步骤进料到水洗进料，并从解吸步骤转换到水冲洗步骤。

公开(公告)号：EP0958239A1

公开(公告)日：1999-11-24

申请号：EP97925418.0

申请日：1997-05-01

Applicant: AlliedSignal Inc.

Inventor： CHANG, Chin-Hsiung, Chang ,  STELLA, Albert, S. ,  GUALDRON, Miquel, A. ,  FISHER, Wende, M. ,  POOLE, Mike

IPC: C01B21

CPC classification number: C01B21/1445 ,  C01B21/1463 ,  C01B21/1481

Abstract: An improved ion exchange process for purifying and/or concentrating hydroxylamine from an aqueous solution comprising hydroxylammonium ion and counter anions wherein ion exchange process conditions including effluent pH, effluent conductivity, and ion exchange bed height can be monitored and used to identify when to switch from an ion exchange step feed to a water wash feed, and to switch from a desorbent step to a water rinse step.