- 专利标题: METHODS OF REDUCING COLOR IN ALKANOLAMINE COMPOSITIONS AND COMPOSITIONS PRODUCED THEREBY
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申请号: US16062385申请日: 2016-12-23
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公开(公告)号: US20180370899A1公开(公告)日: 2018-12-27
- 发明人: Feng Xu , Flaiyh Al-Anazi
- 申请人: SABIC Global Technologies B.V.
- 国际申请: PCT/IB2016/057983 WO 20161223
- 主分类号: C07C213/10
- IPC分类号: C07C213/10 ; C07C215/12 ; C01D1/04 ; C01B35/04
摘要:
A method of reducing color in an alkanolamine, the method comprising: contacting the alkanolamine with an amount of an aqueous solution effective to provide 5 to 1000 parts per million by weight of an alkali metal borohydride, based on parts by weight of the alkanolamine; and 0.5 to 10,000 parts per million by weight of an alkali metal hydroxide, based on parts by weight of the alkanolamine; preferably wherein the color-reduced alkanolamine is not distilled after the contacting.
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