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    Preparation of carbonyl compounds by gas phase oxidation of alcohol, especially glyoxal from ethylene glycol
    13.
    发明专利
    Preparation of carbonyl compounds by gas phase oxidation of alcohol, especially glyoxal from ethylene glycol 未知

    公开(公告)号：DE19811288A1

    公开(公告)日：1999-09-23

    申请号：DE19811288

    申请日：1998-03-16

    Applicant: BASF AG

    Inventor： DEMUTH DIRK ,  FETZER THOMAS ,  PRATSCH VOLKER ,  WENDRICH THOMAS ,  MENIG HELMUTH

    IPC: C07B61/00 ,  C07C45/38 ,  C07C45/39 ,  C07C47/04 ,  C07C47/127 ,  C07C47/19 ,  C07C45/29 ,  C07B41/06

    Abstract: In the preparation of carbonyl compounds (I) by gas phase oxidation of methanol or alcohols with gas containing oxygen (O2) in the presence of catalysts containing copper and/or silver and optionally up to 20 ppm volatile phosphorus compound with respect to the alcohol, the catalyst system (III) consists of a catalyst (IIIA) containing Cu and/or Ag and P and a catalyst (IIIB) free from P. In the preparation of carbonyl compounds of formula (I) by gas phase oxidation of methanol or alcohols of formula (II) with gas containing oxygen (O2) in the presence of catalysts containing copper (Cu) and/or silver (Ag) and optionally up to 20 ppm volatile phosphorus (P) compound with respect to the alcohol, the catalyst system consists of a catalyst containing Cu and/or Ag and P and a catalyst free from P: R = H or 1-3 C alkyl; R = H, 2-4 C alkenyl, optionally mono- to trisubstituted by 1-3 C alkyl, or a group of formula (III); R = H; R = OR ; or R R = O; R = H, 1-8 C alkyl, 2-4 C alkenyl, optionally mono- to trisubstituted by 1-3 C alkyl, cyclohexyl or cyclopentyl; R = 1-4 C alkyl, cyclohexyl, cyclopentyl, -CH2-CHO or -CH2-CH2-O-CH2-CHO; R = H or -OR ; R = H, 1-4 C alkyl, cyclohexyl, cyclopentyl, -CH2-CH2-OH or -CH2-C2-O-CH2-CH2-OH.

    PROCESO PARA PREPARAR SALES DE ACIDO CIANHIDRICO
    16.
    发明专利
    PROCESO PARA PREPARAR SALES DE ACIDO CIANHIDRICO 未知

    公开(公告)号：PE20070058A1

    公开(公告)日：2007-02-04

    申请号：PE2006000614

    申请日：2006-06-05

    Applicant: BASF AG

    Inventor： DECKERS ANDREAS ,  SCHNEIDER THOMAS ,  MENIG HELMUTH

    IPC: C01C3/08 ,  C01C3/10

    Abstract: QUE COMPRENDE: a) PREPARAR UN GAS CRUDO QUE COMPRENDE ACIDO CIANHIDRICO POR DESHIDRATACION DE FORMAMIDA HASTA UNA CONVERSION DE LA FORMAMIDA MAYOR O IGUAL A 97%, EN UN REACTOR EN PRESENCIA DE AIRE U OXIGENO Y A UNA TEMPERATURA ENTRE 300°C Y 650°C; b) DE SER APROPIADO, LAVAR CON ACIDO SULFURICO EL GAS CRUDO OBTENIDO EN (a); Y, c) HACER REACCIONAR EL GAS CRUDO OBTENIDO EN (a), O DE SER APROPIADO DE (b), CON UNA SOLUCION ACUOSA DE UN HIDROXIDO M(OH)x, DONDE M ES SELECCIONADO DEL GRUPO QUE CONSISTE EN METALES ALCALINOS Y METALES ALCALINOTERREOS, TAL COMO Li, Na Y K, Y x DEPENDE DEL ESTADO DE OXIDACION DE M Y ES 1 o 2. LA SOLUCION ACUOSA EN (c) COMPRENDE DE 5% A 50% EN PESO DE HIDROXIDO, Y (c) SE LLEVA A CABO A UNA TEMPERATURA DE 5°C A 100°C

    17.
    发明专利
    未知

    公开(公告)号：DE59704619D1

    公开(公告)日：2001-10-18

    申请号：DE59704619

    申请日：1997-12-09

    Applicant: BASF AG

    Inventor： FETZER THOMAS ,  DEMUTH DIRK ,  RUETTER HEINZ ,  MENIG HELMUTH ,  RESCH PETER ,  RUPPEL WILHELM ,  WACHE HARRO

    IPC: C07B61/00 ,  C07C45/38 ,  C07C45/39 ,  C07C47/127

    Abstract: PCT No. PCT/EP97/06855 Sec. 371 Date Jun. 16, 1999 Sec. 102(e) Date Jun. 16, 1999 PCT Filed Dec. 9, 1997 PCT Pub. No. WO98/28250 PCT Pub. Date Jul. 2, 1998The present invention relates to a process for the preparation of carbonyl compounds of the formula in which R1 denotes a hydrogen atom or an alkyl radical containing from 1 to 3 carbon atoms, R2 denotes a hydrogen atom or a radical of the formula in which R3 denotes a hydrogen atom or, together with R4, an oxygen atom, R4 denotes the radical OR6 or, together with R3, an oxygen atom, R5 denotes a hydrogen atom or an alkyl radical containing from 1 to 8 carbon atoms or a cyclohexyl or cyclopentyl radical, and R6 denotes an alkyl radical containing from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CHO or -CH2-CH2-O-CH2-CHO, by gas-phase oxidation of methanol or alcohols of the formula in which R1 and R5 have the meanings specified above and R7 denotes a hydrogen atom or a radical OR8, and R8 denotes a hydrogen atom, an alkyl radical containing from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CH2-OH or -CH2-CH2-O-CH2-CH2-OH, using an oxygen-containing gas in the presence of a (copper and/or silver)-containing catalyst and a phosphorus compound which is volatile under the conditions of the reaction and is present in an amount such that the weight of phosphorus (calculated as P), based on the weight of alcohol used, is not more than 20 ppm, wherein the amount of phosphorus used is divided into at least two portions, of which a) the first portion is added together with the mixture of gaseous starting materials before this reaches the catalyst bed and b) at least one further portion is added within the catalyst bed.

    METHOD FOR PRODUCING CARBONYL COMPOUNDS
    19.
    发明专利
    METHOD FOR PRODUCING CARBONYL COMPOUNDS 未知

    公开(公告)号：CA2274492A1

    公开(公告)日：1998-07-02

    申请号：CA2274492

    申请日：1997-12-09

    Applicant: BASF AG

    Inventor： RESCH PETER ,  RUPPEL WILHELM ,  WACHE HARRO ,  RUETTER HEINZ ,  MENIG HELMUTH ,  FETZER THOMAS ,  DEMUTH DIRK

    IPC: B01J23/72 ,  C07C45/38 ,  C07C45/39 ,  C07C47/127

    Abstract: The invention relates to a method for producing carbonyl compounds of formula (I), in which R1 is a hydrogen atom or an alkyl radical with between 1 and 3 C atoms; R2 is a hydrogen atom or a radical of formula (II) in which R3 is a hydrogen atom or, together with R4, an oxygen atom; R4 is the radical OR6 or, together with R3, an oxygen atom; R5 is a hydrogen atom, an alkyl radical with between 1 and 8 C atoms or a cyclohexyl or cyclopentyl radical; and R6 is an alkyl radical with between 1 and 4 C atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CHO or -CH2-CH2-O-CH2-CHO. According to said method, the carbonyl compounds are produced by gas-phase oxidation of methanol or alcohols of formula (III), in which R1 and R5 have the meaning assigned above and R7 is a hydrogen atom or an OR8 radical, and R8 is a hydrogen atom, an alkyl radical with between 1 and 4 C atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CH2-OH or -CH2-CH2-O-CH2-CH2-OH, with a gas containing oxygen, in the presence of catalysts containing copper and/or silver and a phosphorus compounds which is volatile under reaction conditions, in such a quantity that the quantity of phosphorus (calculated as P) in relation to the part by weight of alcohol used is up to 20 ppm. The method is characterized in that the quantity of phosphorus is added in the catalyst bed.

    Method for producing salts of hydrocyanic acid
    20.
    发明专利
    Method for producing salts of hydrocyanic acid 未知

    公开(公告)号：NZ563912A

    公开(公告)日：2009-12-24

    申请号：NZ56391206

    申请日：2006-05-31

    Applicant: BASF AG

    Inventor： DECKERS ANDREAS ,  SCHNEIDER THOMAS ,  MENIG HELMUTH

    IPC: C01C3/08 ,  C01C3/10

    Abstract: Disclosed is a process for preparing a solution of cyanide salts, comprising the steps of: a) preparing a crude gas comprising hydrocyanic acid by dehydrating formamide up to a formamide conversion of >/= 97 per cent; b) If appropriate, acid-scrubbing the crude gas obtained in step a); and c) subsequently reacting the crude gas obtained in step a) or, if appropriate, in step b) with an aqueous solution of a hydroxide, M(OH)x, where M is selected fro the group consisting of alkali metals and alkaline earth metals and x is dependent upon the oxidation state of M and is 1 or 2.

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