Patents Assigned to Kali-Chemie Aktiengesellschaft
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Patent number: 4009184Abstract: Compounds which are amino carbonyl derivatives of benzofurans which have the formula ##STR1## in which R is a hydrogen, halogen, or alkyl radical containing up to 4 carbon atoms, X is a phenyl, halophenyl, alkylphenyl, or alkoxyphenyl radical, the alkyl moieties of which contain up to 4 carbon atoms, and Y is a dialkylamino radical, the alkyl moieties of which contain up to 4 carbon atoms, or a pyrrolidino, piperidino, hexamethylenimino, morpholino, piperazino, 4-methylpiperazino, or 4-(2-hydroxyethyl)piperazino radical, and acid addition salts thereof, processes for their preparation, and pharmaceutical compositions containing these compounds.Type: GrantFiled: June 6, 1974Date of Patent: February 22, 1977Assignee: Kali-Chemie AktiengesellschaftInventors: Wilhelm Kaupmann, Klaus-Wolf VON Eickstedt, Salah-Eldin Rahman
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Patent number: 4008065Abstract: Disclosed is a granulated fertilizer composition comprising mineral phosphates calcined with alkali and between about 0.5 and 15% by weight of tetrapotassium pyrophosphate as an adjuvant. Also disclosed is a process for preparing the subject compositions.Type: GrantFiled: February 14, 1975Date of Patent: February 15, 1977Assignee: Kali-Chemie AktiengesellschaftInventor: Ulrich Hauschild
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Patent number: 4005176Abstract: Disclosed is a process for the recovery of antimony pentachloride from catalyst solutions used in the fluorination of chlorinated hydrocarbons characterized in that the exhausted catalyst solution containing antimony ions and high boiling halogenated hydrocarbons is chlorinated to convert the Sb.sup.3.sup.+ to Sb.sup.5.sup.+ followed by treatment of the solution with hydrogen fluoride to give SbCl.sub.x F.sub.y compounds, wherein x is 4-2 and y is 1-3, the sum of x+y being 5, and to convert the high boiling halogenated hydrocarbons to lower boiling halogenated hydrocarbons, thereafter removing the halogenated hydrocarbons having a lower boiling temperature than the boiling point of SbCl.sub.x F.sub.y and converting the remaining SbCl.sub.x F.sub.y compound with carbon tetrachloride to form antimony pentachloride which is thereafter separated from the remaining organic compounds and inorganic residue.Type: GrantFiled: August 14, 1975Date of Patent: January 25, 1977Assignee: Kali-Chemie AktiengesellschaftInventors: Gunter Fernschild, Werner Rudolph, Joachim Massonne
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Patent number: 4005177Abstract: Disclosed is an improved catalyst having a high thermal stability including a solid catalyst support having a layer of catalytically active carrier material, either as a coating on a non-catalytically active support or as particles of catalytically active carrier material, and a catalytically active metal component upon the carrier, wherein the improved aspect resides in between about 0.2 and 15% by weight of zinc in the form of zinc oxide contained in the catalytically active carrier material. Also disclosed are a method for preparing the improved catalyst and a method for utilizing the catalyst for purifying automobile exhaust gas and industrial waste gas.Type: GrantFiled: January 17, 1975Date of Patent: January 25, 1977Assignee: Kali-Chemie AktiengesellschaftInventors: Guenther Weidenbach, Karl Hermann Koepernik, Hans Braeutigam
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Patent number: 4005137Abstract: Processes for the separation and purification of a perhaloalkanoic acid or mixture of perhaloalkanoic acids having the formulaA--(CFX--CFY).sub.n --CFX--COOHin which A is a perfluoromethyl, perfluoroethyl, perfluoropropyl or perfluoroisopropyl radical, X is a fluoro or a trifluoromethyl radical, Y is a fluoro or chloro radical, and n is an integer from 1 to 4, from a mixture containing the said acid or mixture of acids and a perhaloalkane or mixture of perhaloalkanes having the formulaA--(CFX--CFY).sub.n --CFX--CFYZin which formula A, X, Y and n have the same significance as in the previous formula and Z is an iodo, chloro or bromo radical, which comprises adsorbing the said mixture in the form of a liquid upon a chromatographic column of adsorbent silica gel particles and subsequently eluting the perhaloalkane or perhaloalkanes therefrom with a weakly polar eluent and subsequently eluting the perfluoroalkanoic acid or acids therefrom with a strongly polar eluent.Type: GrantFiled: February 10, 1975Date of Patent: January 25, 1977Assignee: Kali-Chemie AktiengesellschaftInventors: Werner Rudolph, Joachim Massonne
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Patent number: 4004888Abstract: An apparatus for decontaminating exhaust gases having a rigid metallic housing, a catalyzer body of the monolithic type placed in the housing, the latter serving simultaneously as the outer wall of an exhaust gas conduit, a shell surrounding the catalyzer, a resilient compensating device supporting the catalyzer and the shell within the housing axially therein and with a gap with the housing.The resilient compensating device is formed by resilient tongues engaging the shell which surrounds the catalyzer body, and resilently supports and centers the shell in and spaced spart from the housing.Type: GrantFiled: December 11, 1975Date of Patent: January 25, 1977Assignee: Kali-Chemie AktiengesellschaftInventors: Reimar Musall, Wilhelm Wolsing
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Patent number: 3998809Abstract: A benzodiazepine derivative of the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkyl which may be a straight chain, branched chain or cyclic group and may also be substituted,R.sub.2 is halogen, free hydroxyl, esterified hydroxyl, etherified hydroxyl, nitrile, carboxyl or a derivative thereof or is thioalkyl, thioaryl or the group ##STR2## R.sub.3 and R.sub.4 in this group being the same or different and being hydrogen, acyl, aryl, alkyl, aralkyl, aryloxyalkyl which latter five groups may also be substituted, or wherein R.sub.3 and R.sub.4 are saturated or unsaturated, straight chain or branched alkyl and in which groups the several alkyl may be interconnected directly or through a hetero atom, which if the hetero atom is nitrogen may also be substituted,And in which formula I, A and B are phenyl or phenyl substituted by nitro, trifluoromethyl, halogen, methylthio alkyl or alkoxy;Or a pharmaceutically acceptable acid addition salt of said benzodiazepine derivatives of formula I.Type: GrantFiled: May 1, 1973Date of Patent: December 21, 1976Assignee: Kali-Chemie AktiengesellschaftInventors: Wolfgang Milkowski, Renke Budden, Siegfried Funke, Rolf Huschens, Hans-Gunther Liepmann, Werner Stuhmer, Horst Zeugner
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Patent number: 3985537Abstract: Calcined alkali phosphates of high citrate solubility are made by subjecting natural calcium phosphates including tricalcium phosphate to a thermal decomposition with an aqueous alkali hydroxide solution in a revolving furnace at 900.degree. to 1300.degree.C in the presence of silicic acid. The amounts in the starting mixture are selected to provide for one mol of P.sub.2 O.sub.5 per 1.1 to 1.5 mol of Me.sub. 2 O (Me being an alkali metal) and an amount of silicic acid sufficient to form calcium orthosilicate by combining with 1 mol of CaO derived from the initial tricalcium phosphate and with the lime which is not part of a phosphoric acid compound. The alkali hydroxide solution is introduced at a 30 to 80% concentration directly into the revolving furnace so as to cause the solution to impinge upon the mass while the same is at a temperature of at least 400.degree.C.Type: GrantFiled: August 7, 1974Date of Patent: October 12, 1976Assignee: Kali-Chemie AktiengesellschaftInventors: Ulrich Hauschild, Rudolf Holst, Hans-Heinz Kaspers, Heinrich Rotger
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Patent number: 3979316Abstract: Pelleted sulfur compositions consisting essentially of particles of sulfur which include a substantial proportion of carbon-disulfide-insoluble sulfur particles together with a binder consisting essentially of a plasticizing or softening oil containing an anionic or nonionic surfactant in an amount equivalent to between 0.5 and 10% of the weight of the pelleted composition, the pelleted composition containing an amount of the plasticizing oil equivalent to between 10 and 60% of its weight. The pelleted composition is free-flowing, storable, and disperses homogeneously when distributed in rubber mixtures by milling on heated compounding rolls.Type: GrantFiled: September 27, 1973Date of Patent: September 7, 1976Assignee: Kali-Chemie AktiengesellschaftInventor: Henning Bartzsch
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Patent number: 3975503Abstract: A method for producing alkali carbonate crystals, including adding to an alkali carbonate and alkali hydroxide solution stream a 10 to 75 weight-% alkali hydroxide solution, charging the resulting mixture into a CO.sub.2 -containing gas whose temperature is from 150.degree. to 700.degree.C, collecting mixture remaining as liquid from the gas at the end of a residence time of mixture in gas of 0.1 to 10 seconds, separating alkali carbonate crystals from the collected mixture, and feeding the collected mixture, following the separating, back in the alkali carbonate and alkali hydroxide solution stream for another adding of alkali hydroxide solution.Type: GrantFiled: December 13, 1974Date of Patent: August 17, 1976Assignee: Kali-Chemie AktiengesellschaftInventors: Ulrich Hauschild, Reimar Musall, Hans-Jurgen Schroder
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Patent number: 3969356Abstract: 1,4-diazacycloalkane derivatives of the formula ##SPC1##WhereinR is hydrogen, halogen, lower alkoxy, nitro or lower secondary amine,R.sub.1 is lower alkoxyphenyl, nitrophenyl or trifluoromethylphenyl or wherein R.sub.1 is phenyl, that is disubstituted by two halogen, by two lower alkyl, by halogen and nitro, by halogen and lower alkyl, by halogen and lower alkoxy or by lower alkoxy and lower alkoyl, lower in these definitions meaning from 1 to 4 carbon atoms and whereinn, n' and m are 2 or 3;And pharmaceutically acceptable acid addition products of these compounds.The compounds are sedatives with an analgesic and anti-histaminic effect and possess a low toxicity.Type: GrantFiled: June 20, 1975Date of Patent: July 13, 1976Assignee: Kali-Chemie AktiengesellschaftInventors: Wolfgang Milkowski, Horst Zeugner, Klaus-Wolf VON Eickstedt, Werner Stuhmer
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Patent number: 3966735Abstract: Piperazine derivatives having the following general formula ##EQU1## in which n is 2 or 3, X is an oxy or thio radical, and A and B are each a radical of the group consisting of phenyl radicals containing at most three substituents of the group consisting of nitro, trifluoromethyl, halogen, cyano, and alkyl, alkoxy, alkylthio, acyl, and alkylsulfonyl radicals containing at most 6 carbon atoms, and similar cycloalkyl and cycloalkylalkyl radicals, their acid addition salts, processes for their production, and pharmaceutical compositions containing the same. The compounds have a very favorable action on the central nervous system and are effective agents for the treatment of anxiety states, psychoses, emotional disturbances, aggressive tendencies, and can be used generally for the treatment of psychiatrically disturbed and psychoneurotic patients.Type: GrantFiled: March 5, 1974Date of Patent: June 29, 1976Assignee: Kali-Chemie AktiengesellschaftInventors: Wolfgang Milkowski, Horst Zeugner, Klaus-Wolf VON Eickstedt, Werner Stuhmer