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公开(公告)号：US20100184976A1
公开(公告)日：2010-07-22
申请号：US12664426
申请日：2008-05-21
申请人： Christian Kuhrs , Andreas Kern , Tilo John , Wolfgang Steiner , Heiko Maas
发明人： Christian Kuhrs , Andreas Kern , Tilo John , Wolfgang Steiner , Heiko Maas
IPC分类号： C07D251/06 , B01J29/072
CPC分类号： C07D251/60
摘要： A process for the preparation of melamine by decomposition of urea with the use of a catalyst, the catalyst comprising a) 10-90% by weight of zeolite, b) 10-90% by weight of a matrix comprising silica, alumina, silicon aluminum oxides and/or clay minerals, and c) 0-10% by weight of additives and the total content of nickel and vanadium in the catalyst being less than 500 ppm.
摘要翻译： 一种通过使用催化剂分解尿素来制备三聚氰胺的方法，所述催化剂包含a）10-90重量％的沸石，b）10-90重量％的包含二氧化硅，氧化铝，硅铝的基体 氧化物和/或粘土矿物，和c）0-10重量％的添加剂，催化剂中镍和钒的总含量小于500ppm。
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公开(公告)号：US20050020864A1
公开(公告)日：2005-01-27
申请号：US10502056
申请日：2003-02-04
申请人： Christian Kuhrs , Ruprecht Meissner
发明人： Christian Kuhrs , Ruprecht Meissner
IPC分类号： B01J21/04 , B01J23/89 , B01J27/122 , B01J27/138 , B01J35/02 , B01J35/10 , B01J37/02 , C07B61/00 , C07C17/156 , C07C19/045 , C07C17/00 , C07C22/00
CPC分类号： B01J27/138 , B01J21/04 , B01J23/8946 , B01J27/122 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J37/0201 , C07C17/156 , C07C19/045
摘要： The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material. The invention further provides a process for preparing 1,2-dichloroethane by oxychlorination of ethylene in the presence of the above catalyst composition as catalyst.
摘要翻译： 本发明涉及用于乙烯氧氯化的催化剂组合物，其包含在载体上的金属盐的混合物，其中所述金属盐以这样的比例施加到载体上，使得催化剂组合物包含a）3至12重量％ 的铜作为铜盐，b）0-3重量％的碱土金属作为碱土金属盐，c）0-3重量％的作为碱金属盐的碱金属，d）0.001至0.1 至少一种选自钌，铑，钯，锇，铱和铂的金属，和/或0.0001至0.1重量％，优选为0.001重量％，优选0.005至0.05重量％ 至0.05重量％的金，作为相应的金属盐或四氯月桂酸，其中所有的重量百分数都是基于包括载体材料的催化剂的总重量。 本发明还提供了在上述催化剂组合物作为催化剂存在下，通过乙烯氧氯化制备1,2-二氯乙烷的方法。
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公开(公告)号：US20060099138A1
公开(公告)日：2006-05-11
申请号：US10532725
申请日：2003-10-27
IPC分类号： C01B7/00
CPC分类号： C01B7/0718 , C01B7/04 , C01B7/0743 , C07C263/10 , C07C265/14 , C07C265/06
摘要： Process for preparing chlorine from hydrochloric acid, which comprises the steps: a) providing a hydrochloric acid feed stream I; b) providing a hydrochloric acid recycle stream II; c) separating off a hydrogen chloride stream IV from the hydrochloric acid feed stream I and the hydrochloric acid recycle stream II in a distillation step; d) feeding the hydrogen chloride stream IV, an oxygen-containing steam V and, if desired, an oxygen-containing recycle stream Va into an oxidation zone and oxidizing hydrogen chloride to chlorine in the presence of a catalyst to give a product gas stream VI comprising chlorine, unreacted oxygen, unreacted hydrogen chloride and water vapor; e) separating off hydrogen chloride and water from the product gas stream VI in an absorption step to give a gas stream VII and the hydrochloric acid recycle stream II; f) if desired, drying the gas stream VII; g) separating off an oxygen-containing stream from the gas stream VII and, if desired, recirculating at least part of this as oxygen-containing recycle stream Va to the oxidation zone, leaving a chlorine-containing product stream VIII; h) if desired, further purifying the chlorine-containing product stream VIII.
摘要翻译： 从盐酸制备氯的方法，其包括以下步骤：a）提供盐酸进料流I; b）提供盐酸循环流II; c）在蒸馏步骤中，从盐酸进料流I和盐酸循环流II中分离出氯化氢料流IV; d）将氯化氢流IV，含氧蒸汽V以及如果需要的话将含氧再循环流Va加入氧化区，并在催化剂存在下将氯化氢氧化成氯，得到产物气流VI 包括氯，未反应的氧，未反应的氯化氢和水蒸气; e）在吸收步骤中从产物气流VI中分离氯化氢和水，得到气流VII和盐酸再循环流II; f）如果需要，干燥气流VII; g）从气流VII中分离含氧物流，如果需要，将其至少部分再循环为含氧再循环流Va至氧化区，留下含氯产物流VIII; h）如果需要，进一步纯化含氯产物流VIII。
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公开(公告)号：US07253280B2
公开(公告)日：2007-08-07
申请号：US10542306
申请日：2004-01-16
申请人： Christian Kuhrs , Eckehard Danz , Wolfgang Steiner , Ralf-Thomas Rahn , Thomas Grassler , Reiner Geier , Klaus Harth , Markus Hölzle
发明人： Christian Kuhrs , Eckehard Danz , Wolfgang Steiner , Ralf-Thomas Rahn , Thomas Grassler , Reiner Geier , Klaus Harth , Markus Hölzle
IPC分类号： C07D251/60 , C07D251/62
CPC分类号： C07D251/60
摘要： The present invention relates to a process for the catalytic preparation of melamine by decomposition of urea over particular solid catalysts using a main reactor and an after-reactor. A catalyst having a low Lewis acidity is used in the main reactor and a catalyst having an equal or preferably higher Lewis acidity is used in the after-reactor.
摘要翻译： 本发明涉及通过使用主反应器和后反应器在特定固体催化剂上分解尿素催化制备三聚氰胺的方法。 在主反应器中使用具有低路易斯酸度的催化剂，并且在反应器中使用具有相同或优选较高路易斯酸度的催化剂。
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公开(公告)号：US20060270879A1
公开(公告)日：2006-11-30
申请号：US11499666
申请日：2006-08-07
申请人： Christian Kuhrs , Ruprecht Meissner
发明人： Christian Kuhrs , Ruprecht Meissner
CPC分类号： B01J27/138 , B01J21/04 , B01J23/8946 , B01J27/122 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J37/0201 , C07C17/156 , C07C19/045
摘要： The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material. The invention further provides a process for preparing 1,2-dichloroethane by oxychlorination of ethylene in the presence of the above catalyst composition as catalyst.
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公开(公告)号：US07126035B2
公开(公告)日：2006-10-24
申请号：US10502056
申请日：2003-02-04
申请人： Christian Kuhrs , Ruprecht Meissner
发明人： Christian Kuhrs , Ruprecht Meissner
CPC分类号： B01J27/138 , B01J21/04 , B01J23/8946 , B01J27/122 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J37/0201 , C07C17/156 , C07C19/045
摘要： The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material. The invention further provides a process for preparing 1,2-dichloroethane by oxychlorination of ethylene in the presence of the above catalyst composition as catalyst.
摘要翻译： 本发明涉及用于乙烯氧氯化的催化剂组合物，其包含在载体上的金属盐的混合物，其中所述金属盐以这样的比例施加到载体上，使得催化剂组合物包含a）3至12重量％ 的铜作为铜盐，b）0-3重量％的碱土金属作为碱土金属盐，c）0-3重量％的作为碱金属盐的碱金属，d）0.001至0.1 至少一种选自钌，铑，钯，锇，铱和铂的金属，和/或0.0001至0.1重量％，优选为0.001重量％，优选0.005至0.05重量％ 至0.05重量％的金，作为相应的金属盐或四氯月桂酸，其中所有的重量百分数都是基于包括载体材料的催化剂的总重量。 本发明还提供了在上述催化剂组合物作为催化剂存在下，通过乙烯氧氯化制备1,2-二氯乙烷的方法。
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公开(公告)号：US20060167250A1
公开(公告)日：2006-07-27
申请号：US10542306
申请日：2004-01-16
申请人： Christian Kuhrs , Eckehard Danz , Wolfgang Steiner , Ralf-Thomas Rahn , Thomas Grabler , Reiner Geter , Klaus Harth , Markus Holzle
发明人： Christian Kuhrs , Eckehard Danz , Wolfgang Steiner , Ralf-Thomas Rahn , Thomas Grabler , Reiner Geter , Klaus Harth , Markus Holzle
IPC分类号： C07D251/60
CPC分类号： C07D251/60
摘要： The present invention relates to a process for the catalytic preparation of melamine by decomposition of urea over particular solid catalysts using a main reactor and an after-reactor. A catalyst having a low Lewis acidity is used in the main reactor and a catalyst having an equal or preferably higher Lewis acidity is used in the after-reactor.
摘要翻译： 本发明涉及通过使用主反应器和后反应器在特定固体催化剂上分解尿素催化制备三聚氰胺的方法。 在主反应器中使用具有低路易斯酸度的催化剂，并且在反应器中使用具有相同或优选较高路易斯酸度的催化剂。
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公开(公告)号：US06900363B2
公开(公告)日：2005-05-31
申请号：US10497598
申请日：2002-12-04
IPC分类号： C07C17/02 , C07C17/15 , C07C17/152 , C07C17/156 , C07C17/158 , C07C17/25 , C07C17/38 , C07C19/045 , C07C21/06
CPC分类号： C07C17/02 , C07C17/156 , C07C19/045
摘要： A process for preparing 1,2-dichloroethane which comprises (A) feeding an ethane-containing feed gas stream into a dehydrogenation zone and dehydrogenating ethane to ethane to give a product gas stream comprising ethane, ethane and secondary constituents, (B) feeding the ethan- and ethene-containing dehydrogenation product gas stream as a single stream or a plurality of substreams, optionally after having separated off secondary constituents, into one or more chlorination zones, chlorinating ethene to 1,2-dichloroethane to give one or more product gas streams comprising 1,2-dichloroethane, ethane and possibly further secondary constituents, isolating 1,2-dichloroethane and one or more ethane-containing circulating gas streams and recirculating the ethane-containing circulating gas stream or streams to the ethane dehydrogenation.
摘要翻译： 一种制备1,2-二氯乙烷的方法，其包括（A）将含乙烷的原料气流送入脱氢区并将乙烷脱氢为乙烷，得到包含乙烷，乙烷和第二组分的产物气流，（B） 含有乙烯和乙烯的脱氢产物气流作为单一流或多个子流，任选地在分离出次级成分后，形成一个或多个氯化区，将乙烯氯化成1,2-二氯乙烷，得到一种或多种产物气体 包含1,2-二氯乙烷，乙烷和可能的其它二级成分的物流，分离1,2-二氯乙烷和一种或多种含乙烷的循环气流，并将含乙烷的循环气流或物流再循环到乙烷脱氢。
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公开(公告)号：US08415265B2
公开(公告)日：2013-04-09
申请号：US12664426
申请日：2008-05-21
申请人： Christian Kuhrs , Andreas Kern , Tilo John , Wolfgang Steiner , Heiko Maas
发明人： Christian Kuhrs , Andreas Kern , Tilo John , Wolfgang Steiner , Heiko Maas
IPC分类号： B01J29/06 , C07D251/12 , C07D251/60 , C07D251/62
CPC分类号： C07D251/60
摘要： A process for the preparation of melamine by decomposition of urea with the use of a catalyst, the catalyst comprising a) 10-90% by weight of zeolite, b) 10-90% by weight of a matrix comprising silica, alumina, silicon aluminum oxides and/or clay minerals, and c) 0-10% by weight of additives and the total content of nickel and vanadium in the catalyst being less than 500 ppm.
摘要翻译： 一种通过使用催化剂分解尿素来制备三聚氰胺的方法，所述催化剂包含a）10-90重量％的沸石，b）10-90重量％的包含二氧化硅，氧化铝，硅铝的基体 氧化物和/或粘土矿物，和c）0-10重量％的添加剂，催化剂中镍和钒的总含量小于500ppm。
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公开(公告)号：US07902411B2
公开(公告)日：2011-03-08
申请号：US11499666
申请日：2006-08-07
申请人： Christian Kuhrs , Ruprecht Meissner
发明人： Christian Kuhrs , Ruprecht Meissner
IPC分类号： C07C17/08
CPC分类号： B01J27/138 , B01J21/04 , B01J23/8946 , B01J27/122 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1042 , B01J37/0201 , C07C17/156 , C07C19/045
摘要： The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) from 3 to 12% by weight of copper as copper salt, b) from 0 to 3% by weight of an alkaline earth metal as alkaline earth metal salt, c) from 0 to 3% by weight of an alkaline metal as alkaline metal salt, d) from 0.001 to 0.1% by weight, preferably from 0.005 to 0.05% by weight, of at least one metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum, and/or from 0.0001 to 0.1% by weight, preferably from 0.001 to 0.05% by weight, of gold, as corresponding metal salt or tetrachloroauric acid, where all percentages by weight are based on the total weight of the catalyst including support material. The invention further provides a process for preparing 1,2-dichloroethane by oxychlorination of ethylene in the presence of the above catalyst composition as catalyst.
摘要翻译： 本发明涉及用于乙烯氧氯化的催化剂组合物，其包含在载体上的金属盐的混合物，其中所述金属盐以这样的比例施加到载体上，使得催化剂组合物包含a）3至12重量％ 的铜作为铜盐，b）0-3重量％的碱土金属作为碱土金属盐，c）0-3重量％的作为碱金属盐的碱金属，d）0.001至0.1 至少一种选自钌，铑，钯，锇，铱和铂的金属，和/或0.0001至0.1重量％，优选为0.001重量％，优选0.005至0.05重量％ 至0.05重量％的金，作为相应的金属盐或四氯月桂酸，其中所有的重量百分数都是基于包括载体材料的催化剂的总重量。 本发明还提供了在上述催化剂组合物作为催化剂存在下，通过乙烯氧氯化制备1,2-二氯乙烷的方法。
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