СПОСОБ ПОЛУЧЕНИЯ МУРАВЬИНОЙ КИСЛОТЫ

    公开(公告)号:UA104324C2

    公开(公告)日:2014-01-27

    申请号:UAA201200778

    申请日:2010-06-11

    Applicant: BASF SE

    Abstract: Способполучениямуравьинойкислотыпутемгидрированиядиоксидауглеродав присутствиикатализатора, которыйсодержитэлемент 8-й, 9-йили 10-йгруппыПериодическойсистемы, третичныйамини полярныйрастворитель, поддавлениемот 0,2 до 30 МПаабс. притемпературеот 20 до 200 °C собразованиемдвухжидкихфаз, разделениеобеихжидкихфаз, причемнасыщеннуютретичнымаминомжидкуюфазу (В) возвращаютв гидрогенизатор, иаддуктмуравьинойкислотыизнасыщеннойаддуктоммуравьинойкислотыс аминоми полярнымрастворителемжидкойфазы (А) подвергаюттермическомурасщеплениюв дистилляторенасвободнуюмуравьинуюкислотуи свободныйтретичныйамин, авысвобожденныйприрасщеплениитретичныйамин, атакжеполярныйрастворительвозвращаютв гидрогенизатор.

    METHOD FOR PRODUCING FORMIC ACID
    57.
    发明专利

    公开(公告)号:ZA201200526B

    公开(公告)日:2013-03-27

    申请号:ZA201200526

    申请日:2012-01-23

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing formic acid by hydrogenation of carbon dioxide in the presence of a catalyst which contains an element of the 8th, 9th or 10th group of the periodic system, a tertiary amine and a polar solvent, at a pressure of 0.2 to 30 MPa abs and a temperature of 20 to 200°C, thereby producing two liquid phases, and separation of the two liquid phases. The liquid phase (B) enriched by the tertiary amine is returned to the hydrogenation reactor and the formic acid/amine addition product from the liquid phase (A) enriched by the formic acid/amine addition product and the polar solvent is thermally separated into free formic acid and free tertiary amine in a distillation unit and the tertiary amine released during separation and the polar solvent are returned to the hydrogenation reactor.

    PROCESS FOR THE PREPARATION OF FORMIC ACID

    公开(公告)号:CA2801580A1

    公开(公告)日:2012-01-05

    申请号:CA2801580

    申请日:2011-06-28

    Applicant: BASF SE

    Abstract: The invention relates to a method for obtaining formic acid by the thermal separation of a flow containing formic acid and a tertiary amine (I), wherein a liquid flow which contains formic acid and a tertiary amine (I) in a molar ratio of 0.5 to 5 is produced by combining tertiary amine (I) and a source of formic acid, 10 to 100 wt % of the secondary components contained in said flow are separated, and formic acid is removed by distillation from the resulting liquid flow in a distillation device at a bottoms temperature of 100 to 300°C and a pressure of 30 to 3000 hPa abs, wherein the bottoms product from the distillation device is separated into two liquid phases and the upper liquid phase is returned to the source of formic acid and the lower liquid phase is returned for separation of the secondary components and/or to the distillation device.

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