Production of sodium diformate
    71.
    发明专利

    公开(公告)号:ZA200710451B

    公开(公告)日:2010-02-24

    申请号:ZA200710451

    申请日:2007-12-03

    Applicant: BASF AG

    Abstract: The calculation of the above balance shows that the division of stream (5) into the streams (5a) and (5b) used here leads to the fact that in the neutralization stage no excess sodium formate is produced, so that any ejection can be omitted. Furthermore, the water content of the stream (14) comprising sodium formate recirculated to the first crystallization stage in this case can be set to a very low value.

    72.
    发明专利
    未知

    公开(公告)号:BRPI0514558A

    公开(公告)日:2008-06-17

    申请号:BRPI0514558

    申请日:2005-08-22

    Applicant: BASF AG

    Abstract: The present invention relates to a process for preparing formic acid by thermally decomposing ammonium formates of tertiary amines A, wherein the tertiary amine A on which the ammonium formate is based has a boiling point at atmospheric pressure in the range from 105 to 175° C.

    75.
    发明专利
    未知

    公开(公告)号:DE102005020890A1

    公开(公告)日:2006-11-09

    申请号:DE102005020890

    申请日:2005-05-04

    Applicant: BASF AG

    Abstract: The calculation of the above balance shows that the division of stream (5) into the streams (5a) and (5b) used here leads to the fact that in the neutralization stage no excess sodium formate is produced, so that any ejection can be omitted. Furthermore, the water content of the stream (14) comprising sodium formate recirculated to the first crystallization stage in this case can be set to a very low value.

    76.
    发明专利
    未知

    公开(公告)号:NO20062261L

    公开(公告)日:2006-07-27

    申请号:NO20062261

    申请日:2006-05-19

    Applicant: BASF AG

    Abstract: A process is proposed for preparing acid formates in which a liquid stream I comprising formic acid and a liquid stream II comprising a metal formate are prepared, the liquid streams I and II are fed to a rectification column in such a manner that a higher or identical feed point to the rectification column is chosen for the liquid stream II than for the liquid stream I, the liquid streams I and II are mixed in the rectification column, with water being removed overhead from the rectification column and a bottoms stream comprising the acid formate is taken off from the rectification column, which comprises the bottoms stream being produced as melt comprising less than 0.5% by weight of water.

    PREPARACION DE FORMIATOS ACIDOS
    77.
    发明专利

    公开(公告)号:AR044327A1

    公开(公告)日:2005-09-07

    申请号:ARP040101638

    申请日:2004-05-14

    Applicant: BASF AG

    Abstract: Un proceso para la preparación de formiatos ácidos mediante la provisión de una corriente líquida (I) que contiene ácido fórmico y una corriente líquida (II) que contiene un formiato de metal y la mezcla de la corriente líquida (I) con al corriente líquida (II), para obtener el correspondiente formiato ácido, que comprende la alimentación a la corriente líquida (I) o uno de sus precursores, a la corriente líquida (II) o uno de sus precursores, o a la mezcla de las corrientes líquidas(I) y (II), de una corriente líquida (III) que contiene los siguientes componentes en contenidos de, en cada caso, > 0,1 % en peso: formiato de metal, metóxido de metal, metanol y MeFo (MeFo), que se produce en un proceso para la preparación de MeFo por carbonilación de metanol en un reactor a una presión absoluta de hasta 50 MPa en presencia de un metóxido de metal como catalizador homogéneo. Uso de formiatos ácidos preparados en el proceso descripto para conservar y/o acidificar material vegetal y/o material animal, para el tratamiento de desechos biológicos, o como aditivo para la nutrición animal y/o como promotor del crecimiento de animales.

    80.
    发明专利
    未知

    公开(公告)号:BR0313245A

    公开(公告)日:2005-06-14

    申请号:BR0313245

    申请日:2003-07-30

    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.

Patent Agency Ranking