发明申请
- 专利标题: Method of Separating Acids from Chemical Reaction Mixtures by Means of Apolar Amines
- 专利标题(中): 通过非极性胺分离酸与化学反应混合物的方法
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申请号: US12092392申请日: 2006-09-15
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公开(公告)号: US20080287709A1公开(公告)日: 2008-11-20
- 发明人: Oliver Huttenloch , Patrick Deck , Holger Ganz , Michael Mauss , Wolfgang Kornig , Michael Bock
- 申请人: Oliver Huttenloch , Patrick Deck , Holger Ganz , Michael Mauss , Wolfgang Kornig , Michael Bock
- 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
- 优先权: DE102005053540.2 20051108
- 国际申请: PCT/EP06/66397 WO 20060915
- 主分类号: C07F9/22
- IPC分类号: C07F9/22 ; B01D1/00 ; B01D11/04
摘要:
A process for the removal of acids from reaction mixtures, comprising at least one product of value which is sparingly soluble in water, by at least one unpolar amine as an auxiliary base, which includes: a) reacting the auxiliary base with the acid with formation of a salt; b) reacting the salt formed in step a) with a further base which accepts the acid with liberation of the auxiliary base and combines with the acid to be accepted from the auxiliary base to form a salt which is very readily soluble in water; c) extraction of the mixture obtained in step b) with water or an aqueous medium, wherein the salt of the further base dissolves in the aqueous phase and the product of value, or the solution of the product of value, in a suitable solvent and the auxiliary base form at least one separate nonaqueous phase; and d) removal by distillation of at least part of any solvent present from the at least one nonaqueous phase obtained in step c), to form two nonmiscible liquid phases.