公开(公告)号：DE4124948A1

公开(公告)日：1993-01-28

申请号：DE4124948

申请日：1991-07-27

Applicant: BASF AG

Inventor： WEBERNDOERFER VOLKMAR DR ,  STUEBINGER ADOLF DR ,  PROLL THEO DR ,  BERNBACH JUERGEN

IPC: C08G69/48 ,  C08G73/02 ,  C08G73/04 ,  D21H17/55 ,  D21H21/10

Abstract: The continuous grafting of NH gp.-contg. cpds. (I) with ethyleneimine (II) in aq. soln. in the presence of catalysts, at temps. of at least 80 deg.C, involves continuously feeding a mixt. of (I), (II) and catalyst at a pressure of at least 0.5 bar into a reaction zone, heating to a temp. at which the grafting reaction will start, passing the exothermic reaction mixt. through a cooled reaction zone in which further reaction occurs at not above 170 deg.C and then releasing the pressure. Pref. (I) are polyamidoamines, polyalkylene-polyamines or polyethyleneimine. Pref. reaction involves heating a mixt. of (I), (II) and catalyst (esp. H2SO4) or p-toluenesulphonic acid) to 90-100 deg.C at 1-20 bar, passing to a second heat exchanger at 100-150 deg.C and then depressurising. USE/ADVANTAGE - Provides a process which is more controllable than prior art processes and gives higher space time yields of prod. The prods. are useful e.g. as dehydrating retention and flocculating agents in paper m

公开(公告)号：DE19740252A1

公开(公告)日：1999-03-18

申请号：DE19740252

申请日：1997-09-12

Applicant: BASF AG

Inventor： ECK BERND ,  MACHHAMMER OTTO DR ,  PROLL THEO DR ,  SCHLIEPHAKE VOLKER DR ,  THIEL JOACHIM DR ,  BROELLOS KLAUS DR

IPC: C07C51/43 ,  C07C51/44 ,  C07C57/07 ,  C07C57/05

Abstract: Acrylic and methacrylic acid can be synthesized by catalytic gas phase oxidation of 3-4C alkanes, alkenes, alcohols and/or aldehydes. This process for the production of acrylic acid or methacrylic acid comprises: (A) production of a gaseous product mixture comprising the reaction mixture arising from the (B) condensation of the gaseous product mixture (C) crystallization of acrylic acid or methacrylic acid from the resulting solution. (D) separation of the crystals from the mother liquor and (E) recycling of at least a portion of the mother liquor from (D) to (B).

公开(公告)号：DE19633532A1

公开(公告)日：1998-02-26

申请号：DE19633532

申请日：1996-08-20

Applicant: BASF AG

Inventor： HEIDA BERND ,  PROLL THEO DR ,  ARMBRUSTER HARALD DR

IPC: C07C51/48 ,  C07C57/145 ,  C07C51/25 ,  C07C51/58 ,  C07C53/00 ,  C07C55/02 ,  C07C57/05 ,  C07C57/13

Abstract: A process is disclosed for extracting substituted or non-substituted, saturated or unsaturated, preferably C1-C6 dicarboxylic acids from an aqueous solution. The aqueous solution is thoroughly mixed with an extraction agent, the extraction agent charged with dicarboxylic acid is separated from the aqueous solution and dicarboxylic acid is separated from the extraction agent. The extraction agent contains more than 10 wt %, preferably 20 to 60 wt %, of one or several amines.

公开(公告)号：DE3773497D1

公开(公告)日：1991-11-14

申请号：DE3773497

申请日：1987-01-30

Applicant: BASF AG

Inventor： KROENER MICHAEL DR ,  SCHMIDT WILLI ,  OFTRING ALFRED DR ,  PROLL THEO DR ,  HARTMANN HEINRICH DR

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02

Abstract: N-Vinylformamide is purified by fractional distn. in a column at a pressure of 0.5-30 mbar, mesured at the top, in the presence of formamide, the distn. being regulated so that N-methylformamide with a content of 0.1-15 wt.% formamide results. Pref. the distn. is performed continuously at 0.5-30 mbar pressure, measured at the column head, and in the presence of 1-70 wt.% formamide, based on the N-vinylformamide used.

公开(公告)号：DE4009410A1

公开(公告)日：1991-09-26

申请号：DE4009410

申请日：1990-03-23

Applicant: BASF AG

Inventor： HABERMANN WOLFGANG ,  BOCHNITSCHEK WERNER DR ,  FRITZMANN JOHANN DR ,  HAMMES PETER DR ,  PROLL THEO DR ,  WEISBRODT WALTER DR

IPC: C25B1/16 ,  B01D61/44 ,  B01D61/52 ,  C25B1/10 ,  C25B1/22 ,  C25B13/04

Abstract: A process is described for the electrochemical cleavage of alkali metal sulphates into relatively highly concentrated solutions of alkali metal hydroxide and sulphuric acid by means of the use of a 3-compartment electrodialysis cell at temperatures of >/= 70 to equipped with an anion exchanger membrane, the polymeric ion exchanger matrix of which is composed of a styrene/divinylbenzene copolymer, having very highly basic quaternary ammonium groups, and a hydronium ion blocker, on the side of which facing the central chamber is located an anion exchanger layer or anion exchanger membrane having tertiary or secondary amino groups.

公开(公告)号：AT28340T

公开(公告)日：1987-08-15

申请号：AT84114102

申请日：1984-11-22

Applicant: BASF AG

Inventor： PFOHL SIGBERG DR ,  HARTMANN HEINRICH DR ,  PROLL THEO DR ,  KLAHR ERHARD DR

IPC: D21H17/37 ,  C08F8/00 ,  D21H17/38 ,  D21H3/38

公开(公告)号：DE3603450A1

公开(公告)日：1987-08-06

申请号：DE3603450

申请日：1986-02-05

Applicant: BASF AG

Inventor： KROENER MICHAEL DR ,  SCHMIDT WILLI DIPL ING ,  OFTRING ALFRED DR ,  PROLL THEO DR ,  HARTMANN HEINRICH DR

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02 ,  C07C103/365 ,  C07C102/00

公开(公告)号：MY138824A

公开(公告)日：2009-07-31

申请号：MYPI20022467

申请日：2002-06-28

Applicant: BASF AG

Inventor： PROLL THEO DR ,  MACHHAMMER OTTO DR ,  SCHINDLER GOTZ-PETER DR ,  MUELLER-ENGEL KLAUS JOACHIM DR

IPC: C07C45/34 ,  C07D301/06 ,  B01J27/199 ,  C07B61/00 ,  C07C45/33 ,  C07C45/35 ,  C07C47/22 ,  C07C51/235 ,  C07C57/055 ,  C07C253/26 ,  C07C255/08

Abstract: PARTIAL OXIDATION PRODUCTS AND/OR AMMOXIDATION PRODUCTS OF AN OLEFINIC HYDROCARBON AI (17) ARE PREPARED BY A PROCESS IN WHICH SAID OLEFINIC HYDROCARBON IS PRODUCED DURING NORMAL OPERATION BY PARTIAL DEHYDROGENATION AND/OR OXYDEHYDROGENATION OF HYDROCARBON A AND FED IN FROM ANOTHER SOURCE DURING PARTIAL OR COMPLETE NONOPERATION OF THE DEHYDROGENATION AND/OR OXYDEHYDROGENATION.

公开(公告)号：DE19622331A1

公开(公告)日：1997-12-11

申请号：DE19622331

申请日：1996-06-04

Applicant: BASF AG

Inventor： TENTEN ANDREAS DR ,  PROLL THEO DR ,  SCHILDBERG HANS-PETER DR

IPC: B01J23/68 ,  B01J23/31 ,  B01J27/198 ,  B01J27/199 ,  C07B61/00 ,  C07C45/33 ,  C07C47/22 ,  C07C51/25 ,  C07C57/04 ,  C07C57/055 ,  C07C51/235 ,  B01J27/192

Abstract: An industrial process for the heterogeneously catalytic gas-phase oxidation of propane with molecular oxygen to form acroleine in which, starting with a molar reactant ratio of the propane to the O2 in the undiluted state in the gas mixture fed in of 7:3, said gas mixture is diluted with the reactant propane and possibly inert gases so that the gas mixture fed in has more than 70 vol % propane and at least 5 vol % O2.

公开(公告)号：AT68173T

公开(公告)日：1991-10-15

申请号：AT87101294

申请日：1987-01-30

Applicant: BASF AG

Inventor： KROENER MICHAEL DR ,  SCHMIDT WILLI ,  OFTRING ALFRED DR ,  PROLL THEO DR ,  HARTMANN HEINRICH DR

IPC: C07C231/24 ,  C07C67/00 ,  C07C231/00 ,  C07C233/00 ,  C07C233/03 ,  C07C233/15 ,  C08F26/00 ,  C08F126/02