Process for preparing formic acid
    1.
    发明授权
    Process for preparing formic acid 有权
    制备甲酸的方法

    公开(公告)号:US09428438B2

    公开(公告)日:2016-08-30

    申请号:US14088805

    申请日:2013-11-25

    Applicant: BASF SE

    CPC classification number: C07C51/44 C07C51/02 C07C53/02

    Abstract: Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which, in step (a), a liquid stream comprising formic acid, methanol, water and tertiary amine (I) is produced by combining methyl formate, water and tertiary amine (I), from there in step (b), methanol is separated off and in step (c), formic acid is removed by distillation from the liquid stream obtained in a distillation apparatus, wherein, when methyl formate, water and tertiary amine (I) are combined, methyl formate, water and optionally tertiary amine (I) are first introduced in step (a1) in a molar ratio of 0≦n(amine to a1)/n(mefo to a1)≦0.1, and from 70 to 100% of the hydrolysis equilibrium possible is set and then, in step (a2), tertiary amine (I) is introduced in a molar ratio of 0.1≦n(amine to a2)/n(mefo to a1)≦2, and the mixture is reacted.

    Abstract translation: 通过热分离包含甲酸和叔胺(I)的流来获得甲酸的方法,其中在步骤(a)中,包含甲酸,甲醇,水和叔胺(I)的液体流由 在步骤(b)中从甲酸甲酯,水和叔胺(I)组合,分离出甲醇,在步骤(c)中,通过蒸馏从蒸馏设备中得到的液体物流除去甲酸,其中,当 甲酸甲酯,水和叔胺(I)的组合,首先在步骤(a1)中以0≤n(胺与a1)/ n(mefo与n = 1)的摩尔比引入甲酸甲酯,水和任选的叔胺(I) a1)≤0.1,可以设定70〜100%的水解平衡,然后在步骤(a2)中,导入叔胺(I),摩尔比为0.1≤n(胺与a2)/ n( mefo至a1)≤2,并使混合物反应。

    PROCESS FOR PREPARING FORMIC ACID
    2.
    发明申请
    PROCESS FOR PREPARING FORMIC ACID 有权
    制备形式酸的方法

    公开(公告)号:US20140018456A1

    公开(公告)日:2014-01-16

    申请号:US13721392

    申请日:2012-12-20

    Applicant: BASF SE

    CPC classification number: C07C51/44 C07C53/02

    Abstract: Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid and tertiary amine (I) is produced by combining tertiary amine (I) and a formic acid source, secondary components comprised therein are separated off, formic acid is removed by distillation from the resulting liquid stream in a distillation apparatus, where the bottom output from the distillation apparatus is separated into two liquid phases, and the upper liquid phase is recirculated to the formic acid source and the lower liquid phase is recirculated to the separation of the secondary components and/or to the distillation apparatus, wherein low boilers are removed by distillation from the upper liquid phase and recirculated to the depleted stream.

    Abstract translation: 通过热分离包含甲酸和叔胺(I)的流来获得甲酸的方法,其中包含甲酸和叔胺(I)的液体流通过将叔胺(I)和甲酸源 ,其中包含的次要组分被分离出来,在蒸馏装置中从所得液流中蒸馏除去甲酸,其中蒸馏装置的底部输出分离成两个液相,上部液相再循环到甲酸 酸源和下液相再循环至次级组分和/或蒸馏装置的分离,其中通过蒸馏从上液相除去低锅炉并再循环至贫化物流。

    Process for preparing formic acid
    5.
    发明授权
    Process for preparing formic acid 有权
    制备甲酸的方法

    公开(公告)号:US08835683B2

    公开(公告)日:2014-09-16

    申请号:US13721296

    申请日:2012-12-20

    Applicant: BASF SE

    CPC classification number: C07C51/44 C07C51/02 C07C53/06 C07C53/02

    Abstract: Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid, tertiary amine (I) and water is produced by combining 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 by distillation from the resulting liquid stream in a distillation apparatus, wherein the stream comprising water and organic decomposition products of the tertiary amine (I) which have been separated off is separated into two liquid phases, the upper liquid phase is removed and the lower, water-comprising liquid phase is recirculated to the formic acid source.

    Abstract translation: 通过热分离包含甲酸和叔胺(I)的流来获得甲酸的方法,其中包含甲酸,叔胺(I)和水的液体流通过将叔胺(I)和甲酸 在水,水和叔胺(I)的有机分解产物存在下,酸源,在蒸馏装置中从所得液流中蒸馏除去甲酸,其中包含水和有机分解产物的流 已经分离出的叔胺(I)分离成两个液相,去除上部液相,将含较低水的液相再循环至甲酸源。

    Process for preparing formic acid
    6.
    发明授权
    Process for preparing formic acid 有权
    制备甲酸的方法

    公开(公告)号:US08889905B2

    公开(公告)日:2014-11-18

    申请号:US13721392

    申请日:2012-12-20

    Applicant: BASF SE

    CPC classification number: C07C51/44 C07C53/02

    Abstract: Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which a liquid stream comprising formic acid and tertiary amine (I) is produced by combining tertiary amine (I) and a formic acid source, secondary components comprised therein are separated off, formic acid is removed by distillation from the resulting liquid stream in a distillation apparatus, where the bottom output from the distillation apparatus is separated into two liquid phases, and the upper liquid phase is recirculated to the formic acid source and the lower liquid phase is recirculated to the separation of the secondary components and/or to the distillation apparatus, wherein low boilers are removed by distillation from the upper liquid phase and recirculated to the depleted stream.

    Abstract translation: 通过热分离包含甲酸和叔胺(I)的流来获得甲酸的方法,其中包含甲酸和叔胺(I)的液体流通过将叔胺(I)和甲酸源 ,其中包含的次要组分被分离出来,在蒸馏装置中从所得液流中蒸馏除去甲酸,其中蒸馏装置的底部输出分离成两个液相,上部液相再循环到甲酸 酸源和下液相再循环至次级组分和/或蒸馏装置的分离,其中通过蒸馏从上液相除去低锅炉并再循环至贫化物流。

    PROCESS FOR PREPARING FORMIC ACID
    7.
    发明申请
    PROCESS FOR PREPARING FORMIC ACID 有权
    制备形式酸的方法

    公开(公告)号:US20140148617A1

    公开(公告)日:2014-05-29

    申请号:US14088805

    申请日:2013-11-25

    Applicant: BASF SE

    CPC classification number: C07C51/44 C07C51/02 C07C53/02

    Abstract: Process for obtaining formic acid by thermal separation of a stream comprising formic acid and a tertiary amine (I), in which, in step (a), a liquid stream comprising formic acid, methanol, water and tertiary amine (I) is produced by combining methyl formate, water and tertiary amine (I), from there in step (b), methanol is separated off and in step (c), formic acid is removed by distillation from the liquid stream obtained in a distillation apparatus, wherein, when methyl formate, water and tertiary amine (I) are combined, methyl formate, water and optionally tertiary amine (I) are first introduced in step (a1) in a molar ratio of 0≦n(amine to a1)/n(mefo to a1)≦0.1, and from 70 to 100% of the hydrolysis equilibrium possible is set and then, in step (a2), tertiary amine (I) is introduced in a molar ratio of 0.1≦n(amine to a2)/n(mefo to a1)≦2, and the mixture is reacted.

    Abstract translation: 通过热分离包含甲酸和叔胺(I)的流来获得甲酸的方法,其中在步骤(a)中,包含甲酸,甲醇,水和叔胺(I)的液体流由 在步骤(b)中从甲酸甲酯,水和叔胺(I)组合,分离出甲醇,在步骤(c)中,通过蒸馏从蒸馏设备中得到的液体物流除去甲酸,其中,当 甲酸甲酯,水和叔胺(I)组合,首先在步骤(a1)中以甲酸甲酯,水和任选的叔胺(I)以0和nlE; n(胺至a1)/ n(mefo至 a1)≦̸ 0.1和70〜100%的水解平衡是可能的,然后在步骤(a2)中,以0.1和nlE的摩尔比引入叔胺(I); n(胺与a2)/ n(mefo to a1)≦̸ 2,使混合物反应。

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