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1.发明专利
公开(公告)号：GB2118576B
公开(公告)日：1985-05-15
申请号：GB8305190
申请日：1983-02-24
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HAMMES PETER , FELGER JOACHIM , HOCK KARL-LUDWIG , BRUNNMUELLER FRIEDRICH , KNITTEL HELMUT , KRANZ JOACHIM , SCHNEIDER ROLF , THOMA PETER
Abstract: Blue iron hexacyanoferrate-III pigments are produced by a process wherein complex iron-II hexacyanoferrate-II (Berlin white) is prepared by electrolysis of an aqueous catholyte solution containing (a) an iron-II salt, (b) an alkali metal salt, an ammonium salt or a mixture of these, and (c) hydrogen cyanide, in an electrolysis cell in which the anode chamber and cathode chamber are separated by an ion exchange membrane, using an electrically conductive aqueous liquid in the anode chamber, and the iron-II hexacyanoferrate-II obtained is then converted to the blue pigment. The process gives Berlin white, which is substantially free from salt, in high yield and high purity. Pollution caused by the process is very low, since only a small amount of salt is produced. Compared with the corresponding blue pigments produced by prior art processes, the pigments obtained give purer colorations with better gloss, and are of higher color strength.
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公开(公告)号：CA1333105C
公开(公告)日：1994-11-15
申请号：CA557912
申请日：1988-02-02
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , ENGELHARDT HUBERT , GEIGER WOLFGANG , MAYER UDO , HAMMES PETER , SIMMLER WERNER
IPC: B01J27/188 , B01J31/16 , B01J31/18 , B01J31/26 , C02F1/72
Abstract: Oxidizable organic and/or inorganic compounds in waters are subjected to catalytic degradation using a catalyst applied to an oxygen-storing inert carrier, for example of graphite, coke, a non-gas-sing coal or active carbon. The carrier used is coated with a cationic dye complexed with heteropolyacids and/ or polyacids and/or salts or metal acids of subgroups V to VIII. The advantages of the process include the prevention of biological growth on the catalyst surface by the biocidal dye cation and the avoidance of calcium and magnesium deposits on the catalyst surface through the presence of the cationic solid.
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公开(公告)号：CA1253980A
公开(公告)日：1989-05-09
申请号：CA488915
申请日：1985-08-16
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HAMMES PETER , ENGELHARDT HUBERT , GEIGER WOLFGANG , HALTRICH WALTER , SIMMLER WERNER
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, eg. graphite, coke or active carbon, is subjected to anodic oxidation in an aqueous mineral acid and then doped with molybdenum(VI) and/or tungsten(VI) and/or vanadium(V) compounds.
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公开(公告)号：FI94432C
公开(公告)日：1995-09-11
申请号：FI911401
申请日：1991-03-22
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , BOCHNITSCHEK WERNER , FRITZMANN JOHANN , HAMMES PETER , PROLL THEO , WEISBRODT WALTER
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Patent Agency Ranking
公开(公告)号：CA1257646A
公开(公告)日：1989-07-18
申请号：CA488914
申请日：1985-08-16
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , POMMER ERNST-HEINRICH , HAMMES PETER , ENGELHARDT HUBERT , GEIGER WOLFGANG , SIMMLER WERNER , HUBER GUENTHER
Abstract: In a fuel cell which has an activated carbon-containing anode and an activated carboncontaining cathode and is preferably used for the oxidative treatment of waste waters containing oxygen or oxygen-containing compounds, the cathode has been subjected to partial anodic oxidation in a mineral acid at a potential .epsilon.h of from +1.3 to +10V and then doped with molybdenum(VI) and/or tungsten(VI) and/or vanadium(V) compounds, and the anode has been subjected to partial anodic oxidation in an aqueous mineral acid, cathodically reduced in an aqueous mineral acid and then impregnated with cobalt hydroxide and/or nickel hydroxide and/or copper hydroxide and/or zinc hydroxide, the anode and the cathode being separated by a porous polyelectrolyte through which the waste water flows.
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公开(公告)号：FI94432B
公开(公告)日：1995-05-31
申请号：FI911401
申请日：1991-03-22
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , BOCHNITSCHEK WERNER , FRITZMANN JOHANN , HAMMES PETER , PROLL THEO , WEISBRODT WALTER
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：FI911401A
公开(公告)日：1991-09-24
申请号：FI911401
申请日：1991-03-22
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , BOCHNITSCHEK WERNER , FRITZMANN JOHANN , HAMMES PETER , PROLL THEO , WEISBRODT WALTER
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：FI911401A0
公开(公告)日：1991-03-22
申请号：FI911401
申请日：1991-03-22
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , BOCHNITSCHEK WERNER , FRITZMANN JOHANN , HAMMES PETER , PROLL THEO , WEISBRODT WALTER
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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9.发明专利
公开(公告)号：GB2118576A
公开(公告)日：1983-11-02
申请号：GB8305190
申请日：1983-02-24
Applicant: BASF AG
Inventor： HABERMANN WOLFGANG , HAMMES PETER , FELGER JOACHIM , HOCK KARL-LUDWIG , BRUNNMUELLER FRIEDRICH , KNITTEL HELMUT , KRANZ JOACHIM , SCHNEIDER ROLF , THOMA PETER
Abstract: Blue iron hexacyanoferrate-III pigments are produced by a process wherein complex iron-II hexacyanoferrate-II (Berlin white) is prepared by electrolysis of an aqueous catholyte solution containing (a) an iron-II salt, (b) an alkali metal salt, an ammonium salt or a mixture of these, and (c) hydrogen cyanide, in an electrolysis cell in which the anode chamber and cathode chamber are separated by an ion exchange membrane, using an electrically conductive aqueous liquid in the anode chamber, and the iron-II hexacyanoferrate-II obtained is then converted to the blue pigment. The process gives Berlin white, which is substantially free from salt, in high yield and high purity. Pollution caused by the process is very low, since only a small amount of salt is produced. Compared with the corresponding blue pigments produced by prior art processes, the pigments obtained give purer colorations with better gloss, and are of higher color strength.
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