发明公开
- 专利标题: AN IMPROVED PROCESS FOR MANUFACTURING HIGHLY CONCENTRATED HYDROXYLAMINE
- 专利标题(中): 改进方法用于生产高浓羟胺
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申请号: EP02776962.9申请日: 2002-09-03
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公开(公告)号: EP1427669A1公开(公告)日: 2004-06-16
- 发明人: CHANG, Chin-Hsiung
- 申请人: BASF AKTIENGESELLSCHAFT
- 申请人地址: 67056 Ludwigshafen DE
- 专利权人: BASF AKTIENGESELLSCHAFT
- 当前专利权人: BASF AKTIENGESELLSCHAFT
- 当前专利权人地址: 67056 Ludwigshafen DE
- 优先权: US317651P 20010906
- 国际公布: WO2003022738 20030320
- 主分类号: C01B21/14
- IPC分类号: C01B21/14
摘要:
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.
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