公开(公告)号：US20080275266A1

公开(公告)日：2008-11-06

申请号：US10586451

申请日：2005-01-27

申请人： Michael Bartsch ,  Robert Baumann ,  Gerd Haderlein ,  Gotz-Peter Schindler ,  Tim Jungkamp ,  Hermann Luyken ,  Jens Scheidel ,  Andreas Brodhagen

发明人： Michael Bartsch ,  Robert Baumann ,  Gerd Haderlein ,  Gotz-Peter Schindler ,  Tim Jungkamp ,  Hermann Luyken ,  Jens Scheidel ,  Andreas Brodhagen

IPC分类号： C07C253/10

CPC分类号： C07C253/10 ,  C07C255/07

摘要： A process is described for hydrocyanating 1,3-butadiene over at least one nickel(0) complex having phosphorus ligands as a catalyst, wherein the 1,3-butadiene is used in a mixture with n-butane and the mixture contains from 60 to 90% by volume of 1,3-butadiene and from 40 to 10% by volume of n-butane.

摘要翻译： 描述了在至少一种具有磷配位体的镍（0）络合物作为催化剂中对1,3-丁二烯进行氢氰化的方法，其中1,3-丁二烯与正丁烷混合使用，混合物含有60〜 90体积％的1,3-丁二烯和40〜10体积％的正丁烷。

公开(公告)号：US20080045766A1

公开(公告)日：2008-02-21

申请号：US10590979

申请日：2005-02-24

申请人： Markus Schubert ,  Jurgen Stephan ,  Volker Bohn ,  Andreas Brodhagen ,  Frank Poplow

发明人： Markus Schubert ,  Jurgen Stephan ,  Volker Bohn ,  Andreas Brodhagen ,  Frank Poplow

IPC分类号： B01J21/04 ,  B01J23/36 ,  B01J32/00 ,  B01J37/08

CPC分类号： B01J21/04 ,  B01J23/36 ,  B01J35/002 ,  B01J35/1019 ,  B01J35/1042 ,  B01J35/1061 ,  B01J37/08 ,  C07C5/333 ,  C10G45/00 ,  C07C11/08 ,  C07C11/02

摘要： Process for producing a supported catalyst which comprises at least 75% by weight of Al2O3, whose proportion of Al2O3 in the delta or theta modification is, based on the proportion of Al2O3, at least 1% and which comprises a rhenium compound and, if appropriate, a promoter as active component (A), which comprises a) converting a customary support (S) which comprises at least 75% by weight of Al2O3 and to which a promoter may, if appropriate, have been applied is converted into a modified support (S) whose proportion of Al2O3 in the delta or theta modification is, based on the proportion of Al2O3, at least 1% by calcining the customary support (S) at a temperature of from 750 to 1100°C., b) producing a supported catalyst precursor from the modified support (S) by applying the active component (A) comprising the rhenium compound to the modified support (S) and c) calcining the supported catalyst precursor at a temperature of from 500 to 750° C.

摘要翻译： 负载催化剂的制备方法，其包含至少75重量％的Al 2 O 3 O 3，其比例为Al 2 O 3 O 3， δ或θ改性中的3 N是基于Al 2 O 3 3 3％至少1％的比例，并且其包含铼化合物，如果 合适的作为活性组分（A）的促进剂，其包括a）转化常规载体（S），其包含至少75重量％的Al 2 O 3 3和 如果合适的话，启动子可以被施加到其上，转化成其在δ或θ改性中的Al 2 O 3 O 3比例为的改性载体（S） 基于Al 2 O 3 3 3％的比例，通过在750至1100℃的温度下煅烧常规载体（S）至少1％，b） 通过将包含铼化合物的活性组分（A）施加到改性载体（S）上，由改性载体（S）制备负载型催化剂前体， 和c）在500-750℃的温度下煅烧负载的催化剂前体

公开(公告)号：US20070167661A1

公开(公告)日：2007-07-19

申请号：US10584758

申请日：2004-12-30

申请人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Thomas Hill ,  Mark Duda

发明人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Thomas Hill ,  Mark Duda

IPC分类号： C07C5/327

CPC分类号： C07C5/333 ,  C07C5/48 ,  C07C11/167

摘要： The invention relates to a process for preparing butadiene from n-butane having the steps of A) providing a feed gas stream a comprising n-butane; B) feeding the feed gas stream a comprising n-butane into at least one first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to obtain a product gas stream b comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and in some cases steam; C) feeding the product gas stream b of the nonoxidative catalytic dehydrogenation and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene to obtain a product gas stream c comprising n-butane, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and steam, said product gas stream c having a higher content of butadiene than the product gas stream b; D) removing hydrogen, the low-boiling secondary constituents and steam to obtain a C4 product gas stream d substantially consisting of n-butane, 2-butene and butadiene; E) separating the C4 product gas stream d into a recycle stream e1 consisting substantially of n-butane and 2-butene and a stream e2 consisting substantially of butadiene by extractively distilling and recycling the stream e1 into the first dehydrogenation zone; F) if desired, feeding some or all of the stream e2 consisting substantially of butadiene into a selective hydrogenation zone and selectively hydrogenating butadiene to 1- and/or 2-butene to obtain a stream f comprising 1-butene and 2-butene; G) if desired, feeding the stream f comprising 1-butene and 2-butene into a distillation zone and removing a product of value stream g1 consisting substantially of 1-butene to leave a stream g2 comprising 2-butene; H) if desired, recycling the stream g2 comprising 2-butene into the first dehydrogenation zone.

摘要翻译： 本发明涉及一种从正丁烷制备丁二烯的方法，该方法具有以下步骤：A）提供包含正丁烷的进料气流a; B）将包含正丁烷的进料气流（a）进料到至少一个第一脱氢区和非氧化催化脱氢的正丁烷中，以获得包含正丁烷，1-丁烯，2-丁烯，丁二烯，氢， 低沸点次生成分，有时还有蒸汽; C）将非氧化催化脱氢的产物气流b和氧气输送到至少一个第二脱氢区，并使1-丁烯和2-丁烯氧化脱氢得到包含正丁烷，2-丁烯， 丁二烯，氢，低沸点二次成分和蒸汽，所述产物气流c具有比产物气流b更高含量的丁二烯; D）除去氢气，低沸点次级组分和蒸汽，得到基本上由正丁烷，2-丁烯和丁二烯组成的C 4 H 4产物气流d; E）将C 4 H 4产物气流d分离成基本上由正丁烷和2-丁烯组成的循环流e1和基本上由丁二烯组成的物流e2，通过萃取蒸馏并将流e1再循环到 第一个脱氢区; F）如果需要，将基本上由丁二烯组成的一些或全部流e2加入到选择性氢化区中，并将丁二烯选择性氢化为1-和/或2-丁烯，以获得包含1-丁烯和2-丁烯的料流f; 如果需要，将包含1-丁烯和2-丁烯的料流f加入到蒸馏区中并除去基本上由1-丁烯组成的物流g1的产物以留下包含2-丁烯的料流g2; H）如果需要，将包含2-丁烯的料流g2再循环到第一脱氢区中。

公开(公告)号：US20070161842A1

公开(公告)日：2007-07-12

申请号：US10584783

申请日：2004-12-30

申请人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Marcus Sigl ,  Mark Duda

发明人： Thorsten Johann ,  Gotz-Peter Schindler ,  Andreas Brodhagen ,  Sven Crone ,  Regina Benfer ,  Marcus Sigl ,  Mark Duda

IPC分类号： C07C5/327 ,  C07C1/00

CPC分类号： C07C5/327 ,  C07C5/333 ,  C07C5/48 ,  C07C11/167

摘要： The invention relates to a process for preparing butadiene from n-butane having the steps of A) providing a feed gas stream a comprising n-butane; B) feeding the feed gas stream a comprising n-butane into at least one first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to obtain a product gas stream b comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and in some cases steam; C) feeding the product gas stream b of the nonoxidative catalytic dehydrogenation and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating n-butane, 1-butene and 2-butene to obtain a product gas stream c comprising n-butane, 2-butene, butadiene, low-boiling secondary constituents and steam, said product gas stream c having a higher content of butadiene than the product gas stream b; D) removing the low-boiling secondary constituents and steam to obtain a C4 product gas stream d substantially consisting of n-butane, 2-butene and butadiene; E) separating the C4 product gas stream d into a stream e1 consisting substantially of n-butane and 2-butene and a product of value stream e2 consisting substantially of butadiene by extractive distillation; F) feeding the stream e1 consisting substantially of n-butane and 2-butene and a cycle stream g comprising 1-butene and 2-butene into a distillation zone and separating into a 1-butene-rich product of value stream f1, a recycle stream f2 comprising 2-butene and n-butane and a stream f3 comprising 2-butene, and recycling the recycle stream f2 into the first dehydrogenation zone; G) feeding the stream f3 comprising 2-butene into an isomerization zone and isomerizing 2-butene to 1-butene to obtain a cycle stream g comprising 1-butene and 2-butene, and recycling the cycle gas stream g into the distillation zone.

摘要翻译： 本发明涉及一种从正丁烷制备丁二烯的方法，该方法具有以下步骤：A）提供包含正丁烷的进料气流a; B）将包含正丁烷的进料气流（a）进料到至少一个第一脱氢区和非氧化催化脱氢的正丁烷中，以获得包含正丁烷，1-丁烯，2-丁烯，丁二烯，氢， 低沸点次生成分，有时还有蒸汽; C）将非氧化催化脱氢的产物气流b和氧气输送到至少一个第二脱氢区，并使正丁烷，1-丁烯和2-丁烯氧化脱氢得到包含正丁烷的产物气流c， 丁二烯，低沸点二次成分和蒸汽，所述产物气流c具有比产物气流b更高含量的丁二烯; D）除去低沸点二次成分和蒸汽，得到基本上由正丁烷，2-丁烯和丁二烯组成的C 4 H 4产物气流d; E）将C 4 H 4产物气流d分离成基本上由正丁烷和2-丁烯组成的物流e1和通过萃取蒸馏基本上由丁二烯组成的价值流e2的产物; F）将基本上由正丁烷和2-丁烯组成的流e1和包含1-丁烯和2-丁烯的循环流g加入到蒸馏区中并分离成价值流f1的富含1-丁烯的产物，再循环 包含2-丁烯和正丁烷的料流f2和包含2-丁烯的料流f3，并将再循环料流f2再循环到第一脱氢区中; G）将包含2-丁烯的料流f3进料到异构化区并将2-丁烯异构化成1-丁烯，得到包含1-丁烯和2-丁烯的循环流g，并将循环气流g再循环到蒸馏区中。

公开(公告)号：US07112694B2

公开(公告)日：2006-09-26

申请号：US10513340

申请日：2003-05-19

申请人： Andreas Woelfert ,  Christian Mueller ,  Eckhard Stroefer ,  Andreas Brodhagen

发明人： Andreas Woelfert ,  Christian Mueller ,  Eckhard Stroefer ,  Andreas Brodhagen

IPC分类号： C07C263/00 ,  B01J10/00

CPC分类号： C07C263/10 ,  C07C265/14

摘要： The present invention relates to a continuous process for preparing isocyanates by reacting primary amines with phosgene, wherein the reaction is carried out in a cascade of at least two tube reactors and the gas phase formed in the reaction is separated off in a phase separator after each reactor and only the liquid phase is passed to the next reactor or to product purification and the reaction volume of the first tube reactor is only a fraction of the total reaction volume.

摘要翻译： 本发明涉及通过使伯胺与光气反应制备异氰酸酯的连续方法，其中反应在至少两个管式反应器的级联中进行，并且在每个反应器中在相分离器中分离反应中形成的气相 反应器，并且只有液相被传送到下一个反应器或产物纯化，并且第一管式反应器的反应体积仅为总反应体积的一部分。