METHOD FOR OBTAINING HEXAMETHYLENE DIAMINE FROM MIXTURES CONTAINING HEXAMETHYLENE DIAMINE

    公开(公告)号:CA2280889A1

    公开(公告)日:1998-08-13

    申请号:CA2280889

    申请日:1998-01-30

    Applicant: BASF AG

    Abstract: The invention relates to a method for obtaining hexamethylene diamine (I) from a mixture (II) containing (I) hexamethylene diamine, (III) hexamethylenimine, (IV) a compound selected from the group consisting of 2-aminomethyl cyclopentylamine and 1,2-diaminocyclohexane, (V) an imine, and (VI) adipodinitrile and 6-aminocaproic acid nitrile. According to said method, (a) a mixture (II) is subjected to distillation, yielding (a1) a low-boiling fraction which essentially contains (III), (a2) a medium-boiling fraction (VII) containing (I), (IV) and (V), and (a3) a high-boiling fraction containing (V) and (VI); (b) a mixture (VII) is subjected to distillation, yielding (b1) an overhead which essentially contains (IV) and (b2) a mixture (VIII) containing (I) and (V) as bottom residue; and (c) a mixture (VIII) is subjected to distillation, yielding (c1) (I) as overhead and (c2) a bottom residue which contains the essential part of (V).

    تحضير اكسيد بروبيلين propylene oxide

    公开(公告)号:SA1473B1

    公开(公告)日:2006-10-29

    申请号:SA2230226

    申请日:2002-07-29

    Applicant: BASF AG

    Abstract: الملخص: يتعلقالإختراعالحالىبعملية (process)منأجلتحضيرأكسيدبروبيلين(propylene oxide) تشتعلعلىالأقلعلىالخطواتالتالية:(أ) يتفاعلالبروبين (propene) معبيروكسيدهيدروجين (hydrogen peroxide) فىمذيب (solvent) فىوجودمحفز (catalyst) مناسبلإعطاءخليط (MO) يشتملعلىالأقلعلىأكسيدبروبيلين،مذيب،بروبينغيرمتفاعل،بيروكسيدهيدروجينغيرمتفاعلوأكسجين (oxygen)، (ب) ينفصلأكسيدبروبيلينعنالخليط (MO) لإعطاءخليط (Ml) الذىيشتعلعلىالأقلعلىبروبينغيرمتفاعلوأكسجين،و (ج) يستخدمالخليط (Ml).

    METHOD FOR OBTAINING HEXAMETHYLENE DIAMINE FROM MIXTURES CONTAINING HEXAMETHYLENE DIAMINE

    公开(公告)号:CA2280889C

    公开(公告)日:2005-07-19

    申请号:CA2280889

    申请日:1998-01-30

    Applicant: BASF AG

    Abstract: The invention relates to a method for obtaining hexamethylene diamine (I) fr om a mixture (II) containing (I) hexamethylene diamine, (III) hexamethylenimine, (IV) a compound selected from the group consisting of 2-aminomethyl cyclopentylamine and 1,2-diaminocyclohexane, (V) an imine, and (VI) adipodinitrile and 6- aminocaproic acid nitrile. According to said method, (a) a mixture (II) is subjected to distillation, yielding (a1) a low-boiling fraction whic h essentially contains (III), (a2) a medium-boiling fraction (VII) containing (I), (IV) and (V), and (a3) a high-boiling fraction containing (V ) and (VI); (b) a mixture (VII) is subjected to distillation, yielding (b1) an overhead which essentially contains (IV) and (b2) a mixture (VIII) containing (I) and (V) as bottom residue; and (c) a mixture (VIII) is subjected to distillation, yielding (c1) (I) as overhead and (c2) a bottom residue which contains the essential part of (V).

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