PROCEDIMIENTO Y DISPOSITIVO PARA LA OBTENCION DE FORMIATO DE ACIDO FORMICO Y SU USO.

    公开(公告)号:MXPA05001090A

    公开(公告)日:2005-04-28

    申请号:MXPA05001090

    申请日:2003-07-30

    Applicant: BASF AG

    Inventor: PASTRE JORG

    Abstract: Procedimiento para la obtencion de formiatos de acido formico, en donde (a) se hidroliza ester metilico de acido formico parcialmente con agua; (b) se destila de la mezcla de reaccion obtenida en la etapa de procedimiento (a) el ester metilico de acido formico y metanol, formandose una corriente que contiene acido formico y agua; (c) se transforma la corriente que contiene ester metilico de acido formico eventualmente metanol de la etapa de procedimiento (b) por (i) reaccion con un compuesto basico con un valor pka del acido correspondiente de la respectiva etapa de disociacion de 3 3, medido a 25_C en solucion acuosa, en presencia de agua, y (ii) separacion destilativa del metanol en una corriente que contiene formiato y agua; y (d) se reune la corriente que contiene el acido formico y agua de la etapa de procedimiento (b) y la corriente que contiene formiato y agua de la etapa de procedimiento (c), formandose una mezcla que contiene el formiato de acido formico y agua. Un dispositivo para su obtencion y el uso de los mismos.

    5.
    发明专利
    未知

    公开(公告)号:NO331010B1

    公开(公告)日:2011-09-05

    申请号:NO20051652

    申请日:2005-04-04

    Applicant: BASF AG

    Abstract: Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).

    6.
    发明专利
    未知

    公开(公告)号:NO20051652L

    公开(公告)日:2005-05-25

    申请号:NO20051652

    申请日:2005-04-04

    Applicant: BASF AG

    Abstract: Disclosed is a method for jointly producing (i) formic acid (III); (ii) a carboxylic acid comprising at least two carbon atoms (II) and/or the derivatives thereof; and (iii) a carboxylic acid anhydride (VII). According to said method, (a) a formic acid ester (I) is transesterfied to formic acid (III) and the corresponding carboxylic acid ester (IV) by means of a carboxylic acid comprising at least two carbon atoms (II); (b) at least one portion of the carboxylic acid ester (IV) formed in step (a) is carbonylated in order to obtain the carboxylic acid anhydride (V); and (c) at least one portion of the carboxylic acid anhydride (V) formed in step (b) is further dehydrated by means of a carboxylic acid (VI) so as to form a carboxylic acid anhydride (VII) and the carboxylic acid (II).

    PROCEDIMIENTO Y DISPOSITIVO PARA LA OBTENCION DE FORMATO DE ACIDO FORMICO Y SU USO.

    公开(公告)号:MXPA05001135A

    公开(公告)日:2005-05-16

    申请号:MXPA05001135

    申请日:2003-07-30

    Applicant: BASF AG

    Inventor: PASTRE JORG

    Abstract: Procedimiento para la obtencion de formiatos de acido formico, en donde (a) se hidroliza ester metilico de acido formico parcialmente con agua; (b) se separa de la mezcla de reaccion procedente de la etapa de procedimiento (a) el ester metilico de acido formico y el metano! por destilacion, formandose una corriente que contiene acido formico y agua; y (c) se reune la corriente que contiene acido formico y agua de la etapa de procedimiento (b) con el correspondiente formiato, formandose una mezcla que contiene el formiato de acido formico y agua, un dispositivo para su obtencion y el uso de los mismos.

    8.
    发明专利
    未知

    公开(公告)号:NO20050538L

    公开(公告)日:2005-02-28

    申请号:NO20050538

    申请日:2005-01-31

    Applicant: BASF AG

    Abstract: Formic acid-formates are produced by (a) partial hydrolysis of methyl formate (MF) with water, (b) distillation to give (S1) formic acid and water, (c) conversion of the other product from (b) (mainly MF) into a stream (S2) containing formate and water by reaction with aqueous strong base and distillation of methanol, and (d) combination of (S1) with (S2). A method for the production of formic acid-formates (I) involves: (a) partial hydrolysis of methyl formate (MF) with water; (b) distillation to give a stream (S1) containing formic acid and water; (c) conversion of the MF- and possibly methanol-containing stream from (b) into a formate- and water-containing stream (S2) by (i) reaction with a basic compound of an acid with a pKa value of at least 3 in presence of water followed by (ii) removal of methanol by distillation; and (d) combination of streams (S1) and (S2). An Independent claim is also included for apparatus for the production of (I), comprising: (A) a reactor for the hydrolysis of MF; (B) a distillation column for separating a stream containing MF, formic acid, methanol and water; (C) a column for the hydrolysis of MF with a basic compound with removal of methanol by distillation (with an inlet for the base above the inlet for the product from (B)); and (D) a column connected to the bottom of (B) for removing water from the stream containing formic acid and water.

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