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公开(公告)号：DE59104734D1
公开(公告)日：1995-04-06
申请号：DE59104734
申请日：1991-03-16
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , BOCHNITSCHEK WERNER DR , FRITZMANN JOHANN DR , HAMMES PETER DR , PROLL THEO DR , WEISBRODT WALTER DR
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.
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公开(公告)号：AT67311T
公开(公告)日：1991-09-15
申请号：AT88112830
申请日：1988-08-06
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HAMMES PETER DR , MESSLINGER REINHARD DR , MUNZINGER MANFRED , FROEHLICH HELMUT DR
IPC: G01N27/30
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公开(公告)号：DE3560745D1
公开(公告)日：1987-11-12
申请号：DE3560745
申请日：1985-08-08
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HAMMES PETER DR , ENGELHARDT HUBERT , GEIGER WOLFGANG , HALTRICH WALTER DR , SIMMLER WERNER DR
Abstract: Wastewaters are subjected to an oxidative treatment with a carbon-containing catalyst and an oxidizing agent by a process in which the carbon carrier used, e.g. graphite, coke or active carbon, is subjected to anodic oxidation in an aqueous mineral acid and then doped with molybdenum(Vl) and/or tungsten(VI) and/or vanadium(V) compounds.
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公开(公告)号：DE3430484A1
公开(公告)日：1986-02-27
申请号：DE3430484
申请日：1984-08-18
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HAMMES PETER DR , ENGELHARDT HUBERT , GEIGER WOLFGANG , HALTRICH WALTER DR , SIMMLER WERNER DR
Abstract: Wastewaters are subjected to an oxidative treatment with a carbon-containing catalyst and an oxidizing agent by a process in which the carbon carrier used, e.g. graphite, coke or active carbon, is subjected to anodic oxidation in an aqueous mineral acid and then doped with molybdenum(Vl) and/or tungsten(VI) and/or vanadium(V) compounds.
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公开(公告)号：DE4326952A1
公开(公告)日：1995-02-16
申请号：DE4326952
申请日：1993-08-11
Applicant: BASF AG
Inventor： HERMELING DIETER DR , BASSLER PETER DR , HAMMES PETER DR , HUGO RANDOLF , LECHTKEN PETER DR , SIEGEL HARDO DR
IPC: F16B7/18 , B01J31/02 , C07F9/50 , C07F9/535 , E04B1/19 , E04B1/342 , E04B1/58 , F16B9/02 , C07F9/52 , C07B63/02 , C07B63/04 , C07B35/02
Abstract: Preparation of triphenylphosphine (TPP) by reaction of triphenylphosphine dichloride (TPPCl2) with magnesium, aluminium and/or iron in the presence of an inert solvent by employing a TPPCl2 solution whose content of phosgene, chlorine, diphosgene, hydrogen chloride, thionyl chloride, sulphuryl chloride, phosphorus trichloride, phosphorus oxychloride and/or aliphatic halogen compounds ("active chlorine compounds") in total is below 1000 ppm of Cl.
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Patent Agency Ranking
公开(公告)号：DE3430488A1
公开(公告)日：1986-02-27
申请号：DE3430488
申请日：1984-08-18
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , POMMER ERNST-HEINRICH DR , HAMMES PETER DR
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公开(公告)号：DE3430487A1
公开(公告)日：1986-02-27
申请号：DE3430487
申请日：1984-08-18
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HAMMES PETER DR , THOMA PETER DR
Abstract: 1. A process for the production of an electrode suitable for the reduction of oxygen and oxygen-containing compounds, in which (a) a carbon carrier is subjected to partial anodic oxidation in an aqueous mineral acid at a potential epsilon h of from 1.3 to + 10V, (b) the carbon carrier subjected to partial oxidation is subsequently impregnated and doped with molybdenum (VI) and/or tungsten (VI) and/or vanadium (V) compounds and (c) the doped carbon carrier is fixed with an iron, titanium and/or zirconium compound or with a dilute aqueous mineral acid, preferably from 0.1 to 3% strength by weight aqueous nitric acid or sulfuric acid or an alkali metal sulfate solution.
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公开(公告)号：DE3405522A1
公开(公告)日：1985-08-29
申请号：DE3405522
申请日：1984-02-16
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HOCK KARL-LUDWIG DR , HAMMES PETER DR , SCHNEIDER ROLF DR , THOMA PETER DR
Abstract: Process for extracting carboxylic acids containing structural units of the formula >N-CH2-COOH from the alkali metal salts or alkaline earth metal salts thereof by electrodialysis of the aqueous solutions of the salts in the central zone of an electrolytic cell, which is divided by semipermeable separating walls into a cathode zone, an anode zone and a central zone, the anolyte used being an aqueous acid and the catholyte being an aqueous solution of an electrolyte.
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公开(公告)号：AT119064T
公开(公告)日：1995-03-15
申请号：AT91104120
申请日：1991-03-16
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , BOCHNITSCHEK WERNER DR , FRITZMANN JOHANN DR , HAMMES PETER DR , PROLL THEO DR , WEISBRODT WALTER DR
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.
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公开(公告)号：DE3582377D1
公开(公告)日：1991-05-08
申请号：DE3582377
申请日：1985-08-08
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , POMMER ERNST-HEINRICH DR , HAMMES PETER DR
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