Title: An improved process for manufacturing highly concentrated hydroxylamine
Application Number: 02817445 Application Date: 2002.09.03
Publication Number: 1551854 Publication Date: 2004.12.01
Approval Pub. Date: 2007.04.18 Granted Pub. Date: 2007.04.18
International Classifi-cation: C01B21/14
Applicant(s) Name: BASF AG Address:
Inventor(s) Name: Chang Chin-hsiung
Attorney & Agent: liu jinhui lin bainan
Abstract:
    An improved ion exchange process for manufacturing and concentrating hydroxylamine from an aqueous solution comprising hydroxylammonium ion and counter anions is disclosed. The process involves the use of an aqueous hydroxylamine wash step which assists in controlling the processing temperature and leads to a more concentrated, purified aqueous hydroxylamine solution.
Time: 9