VERFAHREN ZUR HERSTELLUNG VON AMEISENSÄURE
    31.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON AMEISENSÄURE 有权
    VERFAHREN ZUR HERSTELLUNG VONAMEISENSÄURE

    公开(公告)号:EP2794539A1

    公开(公告)日:2014-10-29

    申请号:EP12809717.7

    申请日:2012-12-14

    Applicant: BASF SE

    Abstract: The invention relates to a method for obtaining formic acid by thermally separating a flow containing formic acid and a tertiary amine (I), wherein a liquid flow containing formic acid, tertiary amine (I), and water is produced by bringing together a tertiary amine (I) and a formic acid source in the presence of water, water and organic decomposition products of the tertiary amine (I) are removed, and formic acid is removed from the obtained liquid flow by means of distillation in a distillation device, wherein the removed flow containing water and organic decomposition products of the tertiary amine (I) is separated into two liquid phases, the upper liquid phase is removed, and the lower liquid phase containing water is fed back to the formic acid source.

    Abstract translation: 本发明涉及一种通过热分离含甲酸和叔胺(I)的流动物来获得甲酸的方法,其中通过将叔胺(I)和叔胺 (I)和甲酸源的存在下,除去叔胺(I)的水和有机分解产物,并通过蒸馏装置中的蒸馏从所得液体流中除去甲酸,其中 将含有水的被除去的流体和叔胺(I)的有机分解产物分离成两个液相,将上层液相除去,将含有水的下层液体回流至甲酸源。

    VERFAHREN ZUR HERSTELLUNG CYCLISCHER LACTAME
    35.
    发明授权
    VERFAHREN ZUR HERSTELLUNG CYCLISCHER LACTAME 有权
    用于生产环内酰胺

    公开(公告)号:EP1278726B1

    公开(公告)日:2009-07-08

    申请号:EP01927931.4

    申请日:2001-04-30

    Applicant: BASF SE

    CPC classification number: C07D201/08

    Abstract: The invention relates to a method for producing cyclic lactams of the formula (II), wherein n and m may each represent 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9 and the sum of n + m is at least 3, preferably at least 4, R?1 and R2¿ represent C¿1?-C6 alkyl, C5-C7 cycloalkyl or C6-C12 aryl groups, by reacting a compound of the formula (I), wherein R?1, R2¿, m and n have the meaning indicated above, and R represents nitrile groups, carboxylic acid amide groups and carboxylic acid groups, with water vapor in the gaseous phase. The inventive method is further characterized in that a) the compound (I) is reacted with water vapor in the gaseous phase, adding an organic diluent (III) before or after the reaction, which diluent has a miscibility gap under certain quantitative, pressure and temperature conditions, said reaction resulting in a mixture (IV) that contains a lactam (II), b) adjusting the mixture (IV) before or after the removal of ammonia to quantitative, pressure and temperature conditions under which the diluent (III) and water are present in a liquid form and have a miscibility gap, and obtaining a two-phase system consisting of a phase (V) that has a higher proportion of diluent (III) than water, and a phase (VI) that has a higher proportion of water than diluent (III), c) separating phase (V) from phase (VI) and, d) removing from phase (V) the diluent (III) and optionally by-products selected from the group of the low-boilers, high-boilers and unreacted compound (I), and obtaining a lactam (II).

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