发明授权
- 专利标题： Methods of treating triethanolamine with acid components and basic components, and triethanolamine compositions containing the same
- 专利标题（中）： 用酸组分和碱性组分处理三乙醇胺的方法和含有它们的三乙醇胺组合物
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申请号： US11661544申请日： 2005-08-04
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公开(公告)号： US07550632B2公开(公告)日： 2009-06-23
- 发明人: Frank Haese , Johann-Peter Melder , Roman Dostalek , Manfred Julius
- 申请人： Frank Haese , Johann-Peter Melder , Roman Dostalek , Manfred Julius
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF SE
- 当前专利权人： BASF SE
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Connolly Bove Lodge & Hutz LLP
- 优先权： DE102004042453 20040831
- 国际申请： PCT/EP2005/008441 WO 20050804
- 国际公布： WO2006/024358 WO 20060309
- 主分类号： C07C209/84
- IPC分类号： C07C209/84
摘要：
Methods for improving color properties of triethanolamine, and triethanolamine compositions treated thereby, are disclosed, wherein the methods comprise: (a) providing a composition comprising triethanolamine; and (b) contacting the composition with an acid component and a basic component; wherein the acid component comprises an acid selected from the group consisting of phosphorous acid, hypophosphorous acid and mixtures thereof; and wherein the basic component comprises a compound selected from the group consisting of alkali metal hydroxides, alkaline earth metal hydroxides, ammonium hydroxides according to general formula (I), and mixtures thereof: [R1R2R3(2-hydroxyethyl)ammonium] hydroxide (I) wherein R1, R2 and R3 each independently represents a C1-30 alkyl or a C2-10 hydroxyalkyl; with the proviso that where the basic component comprises an alkali metal hydroxide, the molar ratio of acid component: basic component is 1:0.1 to 1:1, and where the basic component comprises an alkaline earth metal hydroxide, the molar ratio of acid component: basic component is 1:0.05 to 1:0.5.