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    PRODUCTION OF TERT-BUTYL ESTERS OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS
    11.
    发明专利
    PRODUCTION OF TERT-BUTYL ESTERS OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS 未知

    公开(公告)号：SG11201804444SA

    公开(公告)日：2018-06-28

    申请号：SG11201804444S

    申请日：2016-11-28

    Applicant: BASF SE

    Inventor： HORSTMANN CATHARINA ,  HECHLER CLAUS ,  GRACKIEWICZ GREGOR ,  SCHALL BERND

    IPC: C07C67/04 ,  B01D3/14 ,  C07C67/54 ,  C07C67/62

    Abstract: 80000077238 0000077238 0000077238WO WOWO WO01 0101 01 41 4141 41 A process for continuously preparing the tert-butyl ester of an ethy lenically unsaturated carboxylic acid, by a) reacting an ethylenically unsaturated carboxylic acid with isobu- tene in the presence of an acidic catalyst to give an esterification mixt ure; b) removing 5 the acidic catalyst; c) removing low-boiling components; and d) supplying a tert-butyl ester-comprising liquid to a distillation apparatus and subjecting it to puri fying distilla- tion in the distillation apparatus, where d1) in the distillation apparatus the t ert-butyl ester-comprising liquid is separated into a tert-butyl ester-compri sing gaseous top product and a carboxylic acid-comprising liquid bottom product; d2) the t ert-butyl ester- 10 comprising gaseous top product is at least partly condensed and the condensate is recycled partly as reflux to the distillation apparatus; d3) the carbox ylic acid-comprising liquid bottom product is recycled at least partly to step a); d4) carboxyli c acid- comprising liquid bottom product is drawn off and passed to a heater; a superheat ed, liquid recycle stream is taken from the heater; and the superheated recycle stream is 15 let down into the distillatiuon apparatus; and d5) at least in the top region of the distilla- tion apparatus, the distillation apparatus walls in contact with the vapor, a t least in sub- regions, are heated and/or thermally insulated. In the course of the process , the sepa- ration of the tert-butyl ester from unreacted carboxylic acid is carried on with a particu- larly low level of accompanying polymerization both of the tert-butyl est er and of the 20 carboxylic acid.

    METHOD FOR PRODUCING GEOMETRIC CATALYST MOULDED BODIES
    16.
    发明专利
    METHOD FOR PRODUCING GEOMETRIC CATALYST MOULDED BODIES 未知

    公开(公告)号：ZA201102672B

    公开(公告)日：2012-06-27

    申请号：ZA201102672

    申请日：2011-04-11

    Applicant: BASF SE

    Inventor： RAICHLE ANDREAS ,  HORSTMANN CATHARINA ,  ROSOWSKI FRANK ,  MULLER-ENGEL KLAUS JOACHIM ,  BORCHERT HOLGER ,  COX GERHARD ,  CREMER ULRICH

    IPC: B01J20060101 ,  C07C20060101

    Abstract: A process for producing geometric shaped catalyst bodies K whose active material is a multielement oxide of stoichiometry [Bi1WbOx]a[Mo12Z1cZ2dFeeZ3fZ4gZ5hOy]1, in which a finely divided oxide Bi1WbOx with the particle size d50A1 and, formed from element sources, a finely divided intimate mixture of stoichiometry Mo12Z1cZ2dFeeZ3fZ4gZ5h with the particle size d90A2 are mixed in a ratio of a:1, this mixture is used to form shaped bodies and these are treated thermally, where (d50A1)0.7·(d90A2)1.5·(a)−1≧820. A shaped catalyst body obtained by the process. A catalyst obtained by grinding the shaped catalyst body. A process for heterogeneously catalyzing the partial gas phase oxidation of an alkane, alkanol, alkanal and/or an alkenal of 3 to 6 carbon atoms using the catalyst.

    Verfahren zur kontinuierlichen Herstellung von geometrischen Katalysatorformkörpern K
    17.
    发明专利
    Verfahren zur kontinuierlichen Herstellung von geometrischen Katalysatorformkörpern K 未知

    公开(公告)号：DE102008054586A1

    公开(公告)日：2010-06-17

    申请号：DE102008054586

    申请日：2008-12-12

    Applicant: BASF SE

    Inventor： RAICHLE ANDREAS ,  BORCHERT HOLGER ,  MUELLER-ENGEL KLAUS JOACHIM ,  HORSTMANN CATHARINA ,  MACHT JOSEF

    IPC: B01J37/00 ,  B01J23/28

    Abstract: Ein Verfahren zur Herstellung von geometrischen Katalysatorformkörpern K, deren Aktivmasse ein Multielementoxid ist, das das Element Mo, die Elemente Bi und/oder V sowie eines oder mehrere der Elemente Co, Ni, Fe, Cu und Alkalimetalle enthält, bei dem man mit Quellen der verschiedenen Elemente eine feinteilige Mischung erzeugt, diese durch Pressagglomeration zu einem Pulver vergrößert, aus dem vergrößerten Pulver durch Pressagglomeration Formkörper V bildet, diese in unbeschädigte Formkörper Vund in beschädigte Formkörper Vauftrennt, die unbeschädigten Formkörper Vdurch thermische Behandlung in die Katalysatorformkörper K überführt und die beschädigten Formkörper Vzerkleinert und in die Erzeugung der feinteiligen Mischung rückführt.

    Preparing catalyst molded body, useful e.g. in ammoxidation of propene to acrylonitrile, comprises mixing starting mass having fine particles of bismuth mixed oxide with another starting mass, and forming geometrical molded bodies
    18.
    发明专利
    Preparing catalyst molded body, useful e.g. in ammoxidation of propene to acrylonitrile, comprises mixing starting mass having fine particles of bismuth mixed oxide with another starting mass, and forming geometrical molded bodies 未知

    公开(公告)号：DE102008042060A1

    公开(公告)日：2009-06-18

    申请号：DE102008042060

    申请日：2008-09-12

    Applicant: BASF SE

    Inventor： RAICHLE ANDREAS ,  CREMER ULRICH ,  HORSTMANN CATHARINA ,  ROSOWSKI FRANK ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: B01J23/31 ,  B01J35/02

    Abstract: Preparing geometrical catalyst molded body (I) containing bismuth-molybdenum-iron oxide (II), comprises preparing fine particles of bismuth mixed oxide (III), as starting mass (A1); producing an aqueous mixture under the use of source of the molybdenum-iron oxide element (IV); passing the sources to a dissipation degree Q; producing a starting mass (A2) by drying and adjusting the dissipation degree of the mixture; mixing the starting masses (A1) and (A2) to obtain a starting mass (A3); forming geometrical molded bodies from the starting mass (A3); and thermally treating the molded bodies. Preparation of geometrical catalyst molded body (I) containing bismuth-molybdenum-iron oxide of formula (((Bi 1Z 1> bO x) aZ 0> cMo 12Fe dZ 2> eZ 3> fZ 4> gZ 5> hZ 6> iO y) 1) (II) as active mass, comprises preparing fine particles of bismuth mixed oxide of formula (Bi 1Z 1> bO x) (III) with an average particle diameter (d 50), as starting mass (A1), under the condition that the particle diameter (d 50) of A1 is 1-100 mu m; producing an aqueous mixture under the use of source of the elements different by oxygen of a part T, which is molybdenum-iron oxide of formula ([Z 0> cMo 12Fe dZ 2> eZ 3> fZ 4> gZ 5> hZ 6> iO y] 1) (IV); passing the sources used in the production of the aqueous mixture to a dissipation degree Q, which has a particle diameter (d 90) of = 5 mu m, where the aqueous mixture contains the elements of Z 0>, molybdenum, iron, Z 2>, Z 3>, Z 4>, Z 5>and Z 6>in stoichiometry of formula (Z 0> cMo 12Fe dZ 2> eZ 3> fZ 4> gZ 5> hZ 6> i) (V); producing a starting mass (A2) with a particle diameter (d 90) of 10-400 mu m, by drying and adjusting the dissipation degree of the aqueous mixture; mixing the starting mass (A1) and starting mass (A2), or starting mass (A1), starting mass (A2) and fine particles of molding auxiliary agent to obtain a starting mass (A3) with stoichiometric bismuth-molybdenum-iron multielement oxide of formula ((Bi 1Z 1> b) aZ 0> cMo 12Fe dZ 2> eZ 3> fZ 4> gZ 5> hZ 6> i) (VI); forming geometrical molded bodies from the fine particles of the starting mass (A3); and thermally treating the molded bodies at high temperature, where (I) has a stoichiometric coefficient, which is greater than 0 and >= 0.8. Z 0>Y or lanthanides excluding La and Ce; Z 1>W or Mo; Z 2>Ni or Co; Z 3>an alkali metal, alkaline earth metal or Tl; Z 4>Ln, Ce, Zn, P, As, B, Sb, Sn, V, Cr or Bi; Z 5>Si, Al, Ti, W or Zr; Z 6>Cu, Ag or Au; a : 0.05-6; b : 0.1-10; c : >= 0.001; d : 0.01-5; e : 1-10; f : 0.01-2; g : 0-5; h : 0-50; i : 0-1; and x, y : numbers, which are determined by the valency and frequency of the elements different from oxygen in (I). An independent claim is included for the geometrical catalyst molded body obtained by the above process.

    19.
    发明专利
    未知

    公开(公告)号：DE102007006647A1

    公开(公告)日：2008-08-07

    申请号：DE102007006647

    申请日：2007-02-06

    Applicant: BASF SE

    Inventor： DIETERLE MARTIN ,  SCHINDLER GOETZ-PETER ,  HORSTMANN CATHARINA ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: B01J38/14 ,  C07C45/33 ,  C07C47/22 ,  C07C57/05

    Abstract: A process for regenerating a catalyst bed deactivated in the course of a heterogeneously catalyzed partial dehydrogenation of a hydrocarbon, in which a gas comprising molecular oxygen is conducted at elevated temperature through the deactivated catalyst bed and, in the course of the regeneration, the content of molecular oxygen in the regeneration gas is increased repeatedly and the increase in the carbon oxide content of the regeneration gas as it flows through the deactivated catalyst bed is restricted to values of ≦̸5% by volume.

    PRODUCTION OF TERT-BUTYL ESTERS OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS
    20.
    发明专利
    PRODUCTION OF TERT-BUTYL ESTERS OF ETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS 未知

    公开(公告)号：MY185499A

    公开(公告)日：2021-05-19

    申请号：MYPI2018000882

    申请日：2016-11-28

    Applicant: BASF SE

    Inventor： HORSTMANN CATHARINA ,  HECHLER CLAUS ,  GRACKIEWIEZ GREGOR ,  SCHALL BERND

    Abstract: A process for continuously producing the tert-butyl ester of an ethylenically unsaturated carboxylic acid where a) an ethylenically unsaturated carboxylic acid is reacted with isobutene in the presence of an acidic catalyst to give an esterification mixture; b) the acidic catalyst is removed; c) low-boiling-point constituents are removed; and d) a liquid containing tert-butyl ester is introduced into a distillation device and the product is purified by distillation in the distillation device, where d1) the liquid containing tert-butyl ester is separated in the distillation device to give a gaseous overhead product containing tert-butyl ester and a liquid bottom product containing carboxylic acid; d2) the gaseous overhead product containing tert-butyl ester is at least to some extent condensed and some of the condensate is returned to the distillation device; d3) the liquid bottom product containing carboxylic acid is at least to some extent returned to step a); d4) liquid bottom product containing carboxylic acid is drawn off and conducted to a heater, a superheated liquid return stream is taken from the heater and the superheated return stream is depressurized into the distillation device; and d5) at least in the overhead region of the distillation device those walls of the distillation device that are in contact with the vapours are thermally insulated and/or heated at least in some regions. The separation of the tert-butyl ester from unreacted carboxylic acid in the process proceeds with a particularly small extent of polymerization both of the tert-butyl ester and of the carboxylic acid. (Fig.1)

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