公开(公告)号：MX9911269A

公开(公告)日：2000-04-30

申请号：MX9911269

申请日：1999-12-06

Applicant: BASF AG

Inventor： GROSCH GEORG HEINRICH ,  MULLER ULRICH ,  WALCH ANDREAS ,  RIEBER NORBERT ,  FISCHER MARTIN ,  QUAISER STEFAN ,  HARDER WOLFGANG ,  ELLER KARSTEN ,  BASSLER PETER ,  WENZEL ANNE ,  KAIBEL GERD ,  STAMMER ACHIM ,  HENKELMANN JOCHEM ,  BOTTCHER ARND ,  TELES JOAQUIM HENRIQUE ,  SCHULZ MICHAEL ,  TREIBER GERT

IPC: B01J29/90 ,  B01J38/14 ,  C07B41/00 ,  C07B61/00 ,  C07D301/12 ,  C07D301/19

Abstract: A process for oxidizing an organic compound having at least one C-C double bond or a mixture of two or more thereof comprises the following steps:(I) preparing a hydroperoxide,(II) reacting an organic compound having at least one C-C double bond or a mixture of two or more thereof with the hydroperoxide prepared in step (I) in the presence of a zeolite catalyst,(III) regenerating the at least partially deactivated zeolite catalyst used in step (II), and(IV) conducting the reaction of step (II) using a zeolite catalyst containing the catalyst regenerated in step (III).

公开(公告)号：CA2260814A1

公开(公告)日：1998-03-12

申请号：CA2260814

申请日：1997-08-21

Applicant: BASF AG

Inventor： RUEHL THOMAS ,  STUTZ SUSANNE ,  HENKELMANN JOCHEM ,  STAMMER ACHIM

IPC: B01J27/24 ,  C07C29/42 ,  C07C33/044

Abstract: The invention concerns a process for preparing alkyne diols or mixtures of alkyne diols with alkyne monools by reacting acetylene with more than equimolar amounts of ketones and/or aldehydes in the presence of an alkaline compound, the alkaline compound being used in a molar amount which is less than half the molar amount of the ketone and/or aldehyde to be reacted, in the presence of ammonia and/or at least one reactive primary amine.

公开(公告)号：AT377611T

公开(公告)日：2007-11-15

申请号：AT05750544

申请日：2005-05-17

Applicant: BASF AG

Inventor： SCHWITTAY CLAUDIUS ,  STOECKELMANN ELMAR ,  HEINEMANN JOHANNES ,  ZOELLNER KNUT ,  STAMMER ACHIM

IPC: C08G2/10 ,  C08G2/08 ,  C08J11/02 ,  C08L59/00

Abstract: A process for removing residual monomers from polyoxymethylene homo- or copolymers, comprising the following process steps: a) the residual monomers are removed in gaseous form as vapors from the polymer in a devolatilization apparatus, b) the residual monomer vapors are removed through a vapor pipe, c) the residual monomers are condensed from the vapors in a condensation apparatus at from 1.09 to 102.4 bar and from 102 to 230° C., the temperature not falling below 102° C. at any point of the condensation apparatus, and those surfaces of the condensation apparatus which come into contact with the vapors being coated with a liquid film of condensed residual monomers.

公开(公告)号：ES2280275T3

公开(公告)日：2007-09-16

申请号：ES00991643

申请日：2000-12-27

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  STAMMER ACHIM ,  SCHULZ GERHARD

IPC: C07C45/80 ,  C07B61/00 ,  C07C29/14 ,  C07C31/22 ,  C07C45/75 ,  C07C45/82 ,  C07C45/83 ,  C07C45/86 ,  C07C47/058 ,  C07C47/19

Abstract: Procedimiento para la separación por destilación de formaldehído a partir de soluciones de reacción que contienen un alcanal metilolado, que se ha obtenido a partir de la conversión de formaldehído con un alcanal, que presenta, al menos, un átomo de hidrógeno ácido en posición a con respecto a la función carbonilo, o de la conversión de una 2-alquilacroleína o acroleína con agua y formaldehído, y habiéndose llevado a cabo esta conversión en presencia de cantidades catalíticas de una amina orgánica, caracterizado porque la separación se lleva a cabo en una columna de destilación y porque antes y/o durante la destilación se alimentan desde 0, 1 hasta 10 partes de vapor de agua, con relación a la corriente de alimentación.

公开(公告)号：DE102005049296A1

公开(公告)日：2007-04-19

申请号：DE102005049296

申请日：2005-10-12

Applicant: BASF AG

Inventor： EIBECK PETER ,  AX KARIN ,  BARTHEL HOLGER ,  BRIAN BERND ,  GUALDONI ROBERTO ,  LONGO DANIELA ,  NEUHAUS RALF ,  STAMMER ACHIM ,  WEIGL BERNHARD

IPC: C08J3/20 ,  B29B7/88 ,  B29C47/10 ,  C08J7/16

Abstract: Process for producing coated granules of at least one thermoplastic A), characterized in that, in a mixing apparatus, a) a binder B) is firstly applied to the thermoplastic A) and b) at least one colorant C) is then applied to the granules.

公开(公告)号：CA2623573A1

公开(公告)日：2007-02-15

申请号：CA2623573

申请日：2006-08-01

Applicant: BASF AG

Inventor： GRUETZNER THOMAS ,  BLAGOV SERGEJ ,  FRIESE THORSTEN ,  STAMMER ACHIM ,  LANG NEVEN ,  STROFER ECKHARD ,  SIEGERT MARKUS ,  HASSE HANS

IPC: C07D323/06

Abstract: The invention relates to an integrated process for preparing trioxane from formaldehyde in which, in a first step, a stream A 1 comprising water and formaldehyde and a recycle stream B 2 consisting substantially of water and formaldehyde are fed to a trioxane synthesis reactor in which the formaldehyde is converted to trioxane to obtain a product stream A 2 comprising trioxane, water and formaldehyde. Stream A 2 and a recycle stream D 1 comprising trioxane, water and formaldehyde are fed to a first distillation column and distilled at a pressure in the range from 0.1 to 2.5 bar to obtain a stream B 1 enriched in trioxane, and the stream B 2 consisting substantially of water and formaldehyde. Stream B 1 is fed to a second distillation column and distilled at a pressure in the range from 0.2 to 17.5 bar to obtain a product stream C 2 consisting substantially of trioxane, and a stream C 1 comprising trioxane, water and formaldehyde. Stream C 1 is fed to a third distillation column and distilled at a pressure in the range from 1 to 10 bar to obtain the recycle stream D 1 comprising trioxane, water and formaldehyde, and a stream D 2 consisting substantially of water.

公开(公告)号：AT330923T

公开(公告)日：2006-07-15

申请号：AT00985231

申请日：2000-12-21

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  STAMMER ACHIM ,  RUST HARALD ,  SCHULZ GERHARD

IPC: C07B61/00 ,  C07C29/80 ,  C07C31/22 ,  C07C29/141

Abstract: A process is disclosed for the purification, by distillation, of trimethylolpropane originating from the hydrogenation of 2,2-dimethylolbutanal, said process including the following steps:(a) reaction of n-butyraldehyde with formaldehyde in the presence of catalytic amounts of a tertiary amine, and hydrogenation of the resulting mixture to give a mixture containing trimethylolpropane;(b) separation of water, methanol, trialkylamine and/or trialkylammonium formate by distillation;(c) heating of the residue obtained in (b) under reduced pressure to a temperature at which TMP is volatile and compounds boiling above TMP are cleaved, in order to separate off, by distillation, TMP and compounds more volatile than TMP;(d) distillation of the distillate obtained in (c) in order to separate off the more volatile compounds and recover pure TMP; and(e) optional distillation of the TMP obtained in (d) in order to recover TMP with a low APHA color index.A process is also disclosed in which trialkylammonium formate is distilled under mild conditions from crude mixtures of polyhydric alcohols, predominantly trimethylolpropane.

公开(公告)号：NO20062749A

公开(公告)日：2006-07-12

申请号：NO20062749

申请日：2006-06-13

Applicant: BASF AG

Inventor： STAMMER ACHIM ,  HASSE HANS ,  STROEFER ECKHARD ,  GRUETZNER THOMAS ,  LANG NEVEN ,  SIEGERT MARKUS ,  FRIESE THORSTEN ,  OTT MICHAEL ,  BLAGOV SERGEJ

IPC: B01D3/14 ,  B01D3/36 ,  C07D323/06

CPC classification number: C07D323/06 ,  B01D3/146 ,  B01D3/36 ,  Y02P20/127

公开(公告)号：DE10029055B4

公开(公告)日：2006-06-29

申请号：DE10029055

申请日：2000-06-13

Applicant: BASF AG

Inventor： DERNBACH MATTHIAS ,  KRATZ DETLEF ,  STAMMER ACHIM

IPC: C07C29/74 ,  C07B63/00 ,  C07C29/76 ,  C07C29/80 ,  C07C31/18

公开(公告)号：DE102004051118A1

公开(公告)日：2006-04-27

申请号：DE102004051118

申请日：2004-10-20

Applicant: BASF AG

Inventor： SIEGERT MARKUS ,  LANG NEVEN ,  STROEFER ECKHARD ,  STAMMER ACHIM ,  FRIESE THORSTEN

IPC: C07D323/06

Abstract: Processes are disclosed comprising: (a) reacting an aqueous formaldehyde solution in a reactor in the presence of a suitable catalyst to obtain a reaction product mixture comprising trioxane, formaldehyde and water; (b) distilling the reaction product mixture to form a top stream comprising crude trioxane; and (c) treating the top stream in one or more additional stages to form pure trioxane; wherein an aqueous sidestream is drawn off during the distilling of the reaction mixture.