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公开(公告)号：EP3440048A1
公开(公告)日：2019-02-13
申请号：EP17714775.8
申请日：2017-03-31
申请人： Wacker Chemie AG
IPC分类号： C07C67/055 , C07C67/54 , C07C69/15
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公开(公告)号：EP2265568A1
公开(公告)日：2010-12-29
申请号：EP09734735.5
申请日：2009-04-21
申请人： Wacker Chemie AG
IPC分类号： C07C67/055 , C07C69/01 , B01J8/02 , B01J19/30 , B01J19/32
CPC分类号： C07C67/055 , C07C69/01 , C07C69/15
摘要： The invention provides a process for preparing unsaturated carboxylic esters by means of reaction of alkenes having 2 to 6 carbon atoms with alkanecarboxylic acids having 1 to 6 carbon atoms in the presence of an oxygenous gas and in the presence of a heterogeneous noble metal catalyst by means of a continuous homogeneous gas phase process in a reactor, wherein a gaseous phase (cycle gas) is circulated, and the cycle gas is laden with alkanecarboxylic acid in an acid saturator before entry into the reactor, characterized in that, in a presaturator connected upstream of the acid saturator, the cycle gas is laden with a portion of the amount of alkanecarboxylic acid used for saturation, then it is transferred to the acid saturator and laden there with the remaining amount of alkanecarboxylic acid.
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3.发明授权
公开(公告)号：EP2686328B1
公开(公告)日：2014-10-01
申请号：EP12708135.4
申请日：2012-03-09
申请人： Wacker Chemie AG
IPC分类号： C07F7/18
CPC分类号： C07F7/188
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4.发明公开
公开(公告)号：EP2686328A1
公开(公告)日：2014-01-22
申请号：EP12708135.4
申请日：2012-03-09
申请人： Wacker Chemie AG
IPC分类号： C07F7/18
CPC分类号： C07F7/188
摘要： Organosilicon compounds bearing SiOC groups and having low residual silicon-bonded chlorine are prepared continuously by reacting a chlorosilane with alcohol and optionally water by contacting a gaseous phase containing alcohol with a liquid phase containing silane, organosilicon intermediates, organosilicon compounds containing SiOC groups and optional inert solvent in a reaction column in which the gas phase passes through the liquid phase in bubble form, or is provided with a vaporizer operating by a crossflow principle.
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公开(公告)号：EP3440048B1
公开(公告)日：2020-01-29
申请号：EP17714775.8
申请日：2017-03-31
申请人： Wacker Chemie AG
IPC分类号： C07C67/055 , C07C67/54 , C07C69/15
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公开(公告)号：EP2978737A2
公开(公告)日：2016-02-03
申请号：EP14714653.4
申请日：2014-03-26
申请人： Wacker Chemie AG
摘要： The invention relates to methods for producing vinyl acetate by means of the heterogeneous, catalyzed, continuous gas-phase reaction of ethylene, acetic acid, and oxygen in a reactor, released process heat being removed from the reactor by means of heat exchange to water and thereby own steam being formed, and the separation of the product mixture leaving the reactor, which product mixture contains ethylene, vinyl acetate, acetic acid, water, carbon dioxide, and inert gases, by means of distillation by using one or more azeotropic columns and/or one or more pure distillation columns, characterized in that at least one azeotropic column and/or at least one pure distillation column contains filling bodies and the own steam is at least partially utilized to supply energy in one or more thus equipped azeotropic columns and/or pure distillation columns.
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公开(公告)号：EP2265568B1
公开(公告)日：2011-11-02
申请号：EP09734735.5
申请日：2009-04-21
申请人： Wacker Chemie AG
IPC分类号： C07C67/055 , C07C69/01 , B01J8/02 , B01J19/30 , B01J19/32
CPC分类号： C07C67/055 , C07C69/01 , C07C69/15
摘要： The invention provides a process for preparing unsaturated carboxylic esters by means of reaction of alkenes having 2 to 6 carbon atoms with alkanecarboxylic acids having 1 to 6 carbon atoms in the presence of an oxygenous gas and in the presence of a heterogeneous noble metal catalyst by means of a continuous homogeneous gas phase process in a reactor, wherein a gaseous phase (cycle gas) is circulated, and the cycle gas is laden with alkanecarboxylic acid in an acid saturator before entry into the reactor, characterized in that, in a presaturator connected upstream of the acid saturator, the cycle gas is laden with a portion of the amount of alkanecarboxylic acid used for saturation, then it is transferred to the acid saturator and laden there with the remaining amount of alkanecarboxylic acid.
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