公开(公告)号：DE10109053A1

公开(公告)日：2002-09-05

申请号：DE10109053

申请日：2001-02-24

Applicant: BASF AG

Inventor： VOIT GUIDO ,  SCHULZ GERHARD ,  STAMMER ACHIM ,  SIGWART CHRISTPH ,  KRATZ DETLEF

IPC: C07C29/141 ,  C07C45/72 ,  C07C27/26 ,  C07C21/14 ,  C07C31/18

Abstract: Method for increasing the yield of a polyhydric alcohol (I) produced by hydrogenating a methylolated alkanol comprises transesterifying a formate ester of (I) with an alcohol (II) in the presence of a tertiary amine catalyst. Method for increasing the yield of a polyhydric alcohol (I) produced by hydrogenating a methylolated alkanal comprises transesterifying a formate ester of (I) with an alcohol (II) in the presence of a tertiary amine catalyst selected from: (a) compounds of formula R R R N (III); (b) heterocyclic tertiary amines. R -R = 1-12C alkyl, 3-12C cycloalkyl or aryl, all optionally substituted.

公开(公告)号：DE59802965D1

公开(公告)日：2002-03-14

申请号：DE59802965

申请日：1998-06-05

Applicant: BASF AG

Inventor： GROSCH HEINRICH ,  MUELLER ULRICH ,  WALCH ANDREAS ,  RIEBER NORBERT ,  FISCHER MARTIN ,  QUAISER STEFAN ,  HARDER WOLFGANG ,  ELLER KARSTEN ,  BASSLER PETER ,  WENZEL ANNE ,  KAIBEL GERD ,  STAMMER ACHIM ,  HENKELMANN JOCHEM ,  BOETTCHER ARND ,  TELES 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：DE19915681A1

公开(公告)日：2000-10-12

申请号：DE19915681

申请日：1999-04-07

Applicant: BASF AG

Inventor： FISCHER MARTIN ,  HOELZLE MARKUS ,  QUAISER STEFAN ,  STAMMER ACHIM

IPC: B01J23/40 ,  B01J23/44 ,  B01J23/46 ,  B01J23/62 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  C01B15/026 ,  B01J37/16 ,  C01B15/029 ,  C07C29/145 ,  C07B31/00

Abstract: The invention relates to a method for producing catalysts by immersion coating a metallic support with at least one platinum metal. An aqueous medium which comprises at least one platinum metal complex, at least one reduction agent and at least one complexer and which has a pH value of more than 4 is brought into contact with the metallic support in order to deposit the platinum metal, the platinum metal being deposited in the form of discreet, immobilised particles. The invention also relates to the catalysts obtained using this method and to their use for producing hydrogen peroxide and for hydrogenating organic compounds.

公开(公告)号：BR9711924A

公开(公告)日：2000-04-25

申请号：BR9711924

申请日：1997-10-15

Applicant: BASF AG

Inventor： FISCHER MARTIN ,  KAIBEL GERD ,  STAMMER ACHIM ,  FLICK KLEMENS ,  QUAISER STEFAN ,  HARDER WOLFGANG ,  MASSONNE KLEMENS

IPC: B01J8/04 ,  B01J19/24 ,  B01J19/26 ,  C01B15/029

Abstract: A process for preparing a hydrogen peroxide solution having a hydrogen peroxide content of not less than 2.5% by weight, which comprises continuously reacting hydrogen and oxygen in an aqueous, alcoholic or aqueous/alcoholic reaction medium in the presence of a catalyst containing palladium.

公开(公告)号：AU3818999A

公开(公告)日：1999-11-08

申请号：AU3818999

申请日：1999-04-19

Applicant: BASF AG

Inventor： FISCHER MARTIN ,  STAMMER ACHIM ,  QUAISER STEFAN

IPC: C01B15/01 ,  C01B15/013 ,  C01B15/029 ,  H01L21/306

Abstract: Disclosed are a highly pure aqueous hydrogen peroxide solution for use in the electronics industry and a process for the preparation of such solutions, which are essentially free from organics, which comprises catalytically converting hydrogen and oxygen, electrochemically reducing oxygen or electrolyzing an acidic ammonium sulfate solution, in each case in water and with the exclusion of organic compounds and materials which release such compounds.

公开(公告)号：DE502005002701D1

公开(公告)日：2008-03-13

申请号：DE502005002701

申请日：2005-10-20

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.

公开(公告)号：CA2623594A1

公开(公告)日：2007-03-15

申请号：CA2623594

申请日：2006-09-06

Applicant: BASF AG

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

IPC: C07D317/12

Abstract: Processes comprising: providing a reactive distillation column having an upper region, a middle region and a lower region; feeding ethylene glycol and an aqueous formaldehyde solution into the reactive distillation column in the middle region of the reactive distillation column; reacting the ethylene glycol and the aqueous formaldehyde solution in the reactive distillation column in the presence of a catalyst to form dioxolane; removing a product stream comprising dioxolane in an amount of at least 75% by weight from the upper region of the reactive distillation column; and removing a bottom stream comprising one or more components having boiling points higher than dioxolane from the lower region of the reactive distillation column.

公开(公告)号：ES2266015T3

公开(公告)日：2007-03-01

申请号：ES00985231

申请日：2000-12-21

Applicant: BASF AG

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

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

Abstract: Procedimiento para la destilación de purificación de trimetilolpropano procedente de la hidrogenación de 2, 2-dimetilolbutanal, que presenta las etapas siguientes: a) reacción de n-butiraldehído con formaldehído en presencia de cantidades catalíticas de una amina terciaria e hidrogenación de la mezcla obtenida de este modo para dar una mezcla que contiene trimetilolpropano; b) separación por destilación del agua, del metanol, de la trialquilamina y/o del formiato de trialquilamonio a presiones > 200 mbares, preferentemente > 400 mbares, temperaturas en la cola > 140ºC, preferentemente desde 160 hasta 180ºC, así como tiempos de residencia prolongados, que se lleva a cabo de tal manera que al menos la parte preponderante del TMP con el formiato de trialquilamonio, formado en la etapa (a) reaccione para dar formiatos de TMP que permanecen en la cola y trialquilamina que se elimina por destilación con agua y con metanol, c) calentamiento del residuo, obtenido en b) en vacío a una temperatura,a la que sea volátil el trimetilolpropano y se disocien al menos parcialmente los compuestos con un punto de ebullición mayor que el del trimetilolpropano, con separación mediante destilación del trimetilolpropano así como de los compuestos más fácilmente volátiles que el trimetilolpropano; d) destilación del destilado, obtenido en c) y separación de los compuestos fácilmente volátiles y obtención de TMP puro; e) destilación facultativa del trimetilolpropano, obtenido en d), para la obtención de TMP con un menor índice de color APHA.

公开(公告)号：CA2623572A1

公开(公告)日：2007-02-08

申请号：CA2623572

申请日：2006-07-19

Applicant: BASF AG

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

IPC: C07D323/06

Abstract: The invention relates to an integrated process for preparing trioxane from formaldehyde, comprising the steps of: a) 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 and allowed to react to obtain a product stream A 2 comprising trioxane, water and formaldehyde; b) stream A 2 is fed to a first low-pressure distillation column and distilled at a pressure of from 0.1 to 2.5 bar to obtain a stream B 1 enriched in trioxane and additionally comprising water and formaldehyde, and the recycle stream B 2 consisting substantially of formaldehyde and water; c) stream B 1 and a recycle stream D 1 comprising trioxane, water and formaldehyde are fed to a second low-pressure distillation column and distilled at a pressure of from 0.1 to 2.5 bar to obtain a stream C 1 comprising predominantly trioxane and additionally formaldehyde and water, and a stream C 2 consisting substantially of formaldehyde and water; d) stream C 1 is fed to a high-pressure distillation column and distilled at a pressure of from 0.2 to 17.5 bar to obtain the recycle stream D 1 and a product stream D 2 consisting substantially of trioxane, in which a removal of the low boilers present in streams B 1 or C 1 may be undertaken between steps b) and c) or c) and d).

公开(公告)号：NO20062749L

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

Abstract: A process for removing trioxane from a mixture I of formaldehyde, trioxane and water, by a) distilling the mixture I in a first distillation stage at a pressure of from 0.1 to 2 bar to obtain a stream II which comprises formaldehyde and a stream III which comprises predominantly trioxane and additionally water and formaldehyde, b) mixing the stream III with a recycle stream VII which comprises predominantly trioxane and additionally water and formaldehyde to obtain a stream IIIa which comprises predominantly trioxane and additionally water and formaldehyde, c) distilling the stream IIIa, if appropriate after removing low boilers from the stream III or IIIa in a further distillation stage, in a second distillation stage at a pressure of from 0.2 to 10 bar, the pressure in the second distillation stage being at least 0.1 bar higher than the pressure in the first distillation stage, to obtain a stream IV of trioxane and a stream V which comprises predominantly trioxane and additionally water and formaldehyde, d) distilling the stream V in a third distillation stage at a pressure of from 0.1 to 4 bar to obtain a stream VI which comprises predominantly water and additionally formaldehyde, and the recycle stream VII which comprises predominantly trioxane and additionally water and formaldehyde, e) if appropriate, distilling the stream VI in a fourth distillation stage to obtain a stream VIII which comprises predominantly water, and a stream IX which comprises predominantly formaldehyde.