Patents Assigned to Vinnolit Technologie GmbH & Co.
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Patent number: 8507619Abstract: The invention relates to a process for the polymerization of vinyl-containing monomers such as, for example, monomeric vinyl halides, in a reaction mixture, in which process less waste is generated.Type: GrantFiled: January 26, 2006Date of Patent: August 13, 2013Assignee: Vinnolit Technologie GmbH & Co. KGInventors: Ulrich Woike, Heinz Klippert, Jürgen Kirschner, Peter Kammerhofer
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Apparatus and process for the production of vinyl chloride by thermal cracking of 1,2-dichloroethane
Patent number: 7767869Abstract: The invention relates to a process for the production of vinyl chloride by thermal cracking, in which the energy balance, the operating time of the cracking furnace and/or the yield of the reaction are distinctly enhanced in comparison with the prior art. A pressure of from 1.4 to 2.5 MPa is established in the cracking coil at a temperature of from 450 to 550° C. and, for pre-heating the EDC (=1,2-dichloroethane) introduced, inter alia the waste heat of the gas stream leaving the top of the quench column is utilized.Type: GrantFiled: March 17, 2004Date of Patent: August 3, 2010Assignee: Vinnolit Technologie GmbH & Co. KGInventors: Peter Kammerhofer, Ingolf Mielke, Peter Schwarzmaier -
Patent number: 7718138Abstract: The present invention relates to a device and a process for introducing gas into a fluidised bed reactor having at least one gas inlet pipe (2, 3) located underneath and/or above the fluidised bed for introducing gas into the fluidised bed, characterized in that the gas inlet pipe (2, 3) has gas-swirling means upstream of and/or at its mouth.Type: GrantFiled: May 26, 2003Date of Patent: May 18, 2010Assignee: Vinnolit Technologie GmbH & Co. KGInventors: Klaus Krejci, Peter Kammerhofer, Ingolf Mielke, Uwe Wäterling
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Publication number: 20090118444Abstract: The invention relates to a process for the polymerisation of monomeric vinyl halides in a polymerisation reactor, especially using a reflux condenser, and also to a polymerisation reactor for carrying out the process according to the invention. As a result, the space-time yield (STY) of an exothermal reaction can be substantially improved whilst the product quality remains almost the same.Type: ApplicationFiled: December 9, 2005Publication date: May 7, 2009Applicant: Vinnolit Technologie GmbH & Co. KGInventors: Ulrich Woike, Alexander Toepfer, Heinz Klippert, Detlev Keil
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Patent number: 7504077Abstract: With a method or a device for producing 1,2-dichloroethane or ethylene (di)chloride (EDC) with the use of a circulating reaction medium and a catalyst, whereby ethylene and chlorine are supplied to the reaction medium, the catalytic chlorination of ethylene is achieved in a manner that is particularly gentle to the product by introducing the ethylene or chlorine gas into the reaction medium via microporous gas diffuser elements for producing gas bubbles with a diameter of 0.3 to 3 mm.Type: GrantFiled: October 8, 2004Date of Patent: March 17, 2009Assignees: Uhde GmbH, Vinnolit Technologie GmbH & Co. KGInventor: Michael Benje
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Publication number: 20080281057Abstract: The invention relates to a process for the polymerisation of monomeric vinyl halides in a polymerisation reactor, especially using a flow-through cooler, and also to a polymerisation reactor for carrying out the process according to the invention. As a result, the space-time yield (STY) of an exothermal reaction can be substantially improved whilst the product quality remains almost the same.Type: ApplicationFiled: December 9, 2005Publication date: November 13, 2008Applicant: VINNOLIT TECHNOLOGIE GMBH & CO. KGInventors: Marcus Pfaadt, Heinz Klippert
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Publication number: 20080146753Abstract: The invention relates to a process for the polymerisation of vinyl-containing monomers such as, for example, monomeric vinyl halides, in a reaction mixture, in which process less waste is generated.Type: ApplicationFiled: January 26, 2006Publication date: June 19, 2008Applicant: Vinnolit Technologie GmbH & Co. KGInventors: Ulrich Woike, Heinz Klippert, Jurgen Kirschner, Peter Kammerhofer
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Patent number: 7309804Abstract: A process for the preparation of 1,2-dichloroethane that is very pure with respect to chloral or/and chloral hydrate and carbon dioxide is described herein. The process comprises oxychlorination of ethylene, using hydrogen chloride and an oxygen-containing gas, and alkali treatment of the 1,2-dichloroethane produced. In the process, the carbon dioxide present in the 1,2-dichloroethane-containing organic phase is, in accordance with the invention, substantially separated out from the 1,2-dichloroethane-containing organic phase before the alkali treatment.Type: GrantFiled: October 25, 2002Date of Patent: December 18, 2007Assignees: Vinnolit Technologie GmbH & Co., Vintron GmbHInventors: Helmut Grumann, Manfred Stoger, Jurgen Eichler, Dieter Jaculi, Winfried Lork, Arend Greve, Jan Wilkens, Peter Kammerhofer, Hermann Tropp
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Patent number: 7009084Abstract: The invention relates to a method for producing high purity 1,2-dichloroethane using a liquid reaction medium that is circulated and that is essentially composed of 1,2-dichloroethane and a catalyst. At least ethylene and chlorine are added to the reaction medium and a mainly chlorine-containing gas flow is dissolved in a part of the reaction medium which is essentially devoid of dissolved ethylene. The gaseous components not dissolved in this solution are removed from the solution by means of a gas-separation device and the solution from which the undissolved gas components were removed is contacted with ethylene which is present in dissolved form.Type: GrantFiled: February 1, 2003Date of Patent: March 7, 2006Assignees: Uhde GmbH, Vinnolit Technologie GmbH & Co. KGInventors: Michael Benje, Dieter Jaculi, Ingolf Mielke, Peter Schwarzmaier, Klaus Krejci, Joachim Schubert, Horst Ertl
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Patent number: 6841708Abstract: With a method or a device for producing 1,2-dichloroethane or ethylene (di)chloride (EDC) with the use of a circulating reaction medium and a catalyst, whereby ethylene and chlorine are supplied to the reaction medium, the goal is to permit the catalytic chlorination of ethylene in a manner that is particularly gentle to the product. This is achieved in terms of the method and by other means in that the ethylene or chlorine gas are introduced into the reaction medium by means of microporous gas diffuser elements for producing gas bubbles with a diameter of 0.3 to 3 mm.Type: GrantFiled: October 12, 1999Date of Patent: January 11, 2005Assignees: Vinnolit Technologie GmbH & Co., Uhde GmbHInventor: Michael Benje
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Patent number: 6204419Abstract: Process and apparatus for preparing 1,2-Dichloroethane by direct chlorination If in the reaction of ethylene with chlorine to form 1,2-dichloroethane (EDC) the catalyst components sodium chloride and iron(III) chloride are used in a molar ratio of below 0.5, then the EDC is obtained in sufficiently high purity to allow direct conversion to vinyl chloride. With maintenance of the stated molar ratio the reaction can be carried out very advantageously in terms of equipment and energy consumption, for example by vaporizing some of the EDC in an expansion vessel.Type: GrantFiled: June 7, 1995Date of Patent: March 20, 2001Assignee: Vinnolit Technologie GmbH & Co. KGInventors: Jürgen Eichler, Reinhard Krumböck, Wenzel Kühn, Peter Schwarzmaier, Thomas Wild, Rudolf Spielmannleitner, Manfred Stöger, Ingolf Mielke