发明授权
- 专利标题: Method for treating residues containing salt, produced during the production of amino-functional organosilanes
- 专利标题(中): 在制备氨基官能有机硅烷时生产的含有盐的残留物的方法
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申请号: US12995871申请日: 2009-04-20
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公开(公告)号: US09079926B2公开(公告)日: 2015-07-14
- 发明人: Philipp Albert , Eckhard Just
- 申请人: Philipp Albert , Eckhard Just
- 申请人地址: DE Essen
- 专利权人: Evonik Degussa GmbH
- 当前专利权人: Evonik Degussa GmbH
- 当前专利权人地址: DE Essen
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: DE102008002183 20080603
- 国际申请: PCT/EP2009/054649 WO 20090420
- 国际公布: WO2009/146972 WO 20091210
- 主分类号: C07F7/10
- IPC分类号: C07F7/10 ; C07F7/18
摘要:
The invention relates to a method for treating an ammonium halogenide and/or residue containing organic aminhydrohalogenides, produced during the production of an amino-functional organosilane of general formula (I) R2N[(CH2)2NH]z(Z)Si(R″)n(OR′)3-n (Ia), wherein the production of the amino-functional organosilane according to formula (Ia) is based on the conversion of a halogen-functional organosilane of general formula (II) X—Z—Si(R″)n(OR′)3-n (II), with excess ammonia or an organic amine of general formula (III) RNH[(CH2)2NH]zR (III) and subsequently separating and treating the raw product and the resulting residue containing salt. The treatment consists of adding an essentially non-polar organic solvent and an aqueous lye to the residue. The mixture is reacted, subsequently the aqueous phase is separated from the organic phase, the organic solvent contained in the organic phase is removed from said phase and the residual organic phase is recovered.
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