摘要:
Preparation of highly reactive isobutene homo- or copolymers with Mn=from 500 to 1 000 000 by polymerizing isobutene from technical C4 hydrocarbon streams having an isobutene content of from 1 to 90% by weight in the liquid phase in the presence of a dissolved, dispersed or supported catalyst complex, by using, as the catalyst complex, a protic acid compound I [H+]kYk−.Lx (I) Yk− weakly coordinating k-valent anion which comprises at least one hydrocarbon moiety, L neutral solvent molecules and x≧0.
摘要翻译:通过将异丁烯从异丁烯含量为1的工业C 4 O 4烃流聚合得到异丁烯,从而制备具有500至1 000 000的MOR的高反应异丁烯均聚物或共聚物 在溶解,分散或负载的催化剂配合物存在下,液相中为90重量%,通过使用作为催化剂配合物的质子化合物I <βin-line-formula description =“In-Line Formulas”end =“lead”?> [H + S] SUP> K SUP>。 in-line-formula description =“In-line Formulas”end =“tail”?> Y sup>弱配位的k价阴离子,其包含至少一个烃部分,L中性溶剂分子和x > = 0。
摘要:
Preparation of highly reactive isobutene homo- or copolymers having Mn=from 500 to 45 000 by polymerizing isobutene in the liquid phase in the presence of a dissolved, dispersed or supported boron-containing catalyst complex, by using, as the catalyst complex, a protic acid compound I [H+]m+1[R1R2R3B—(-Am+—BR5R6—)n—R4](m+1)−.Lx (I) R1 to R6 each independently aliphatic, heterocyclic or aromatic, fluorinated hydrocarbon radicals having in each case from 1 to 18 carbon atoms, or silyl groups comprising C1 to C18 hydrocarbon radicals, A nitrogen-containing bridging member which forms covalent bonds to the boron atoms via its nitrogen atoms, L neutral solvent molecules, n=0 or 1, m=0 or 1 and x is ≧0.
摘要:
Preparation of highly reactive isobutene homo- or copolymers having Mn=from 500 to 1 000 000 by polymerizing isobutene in the liquid phase in the presence of a dissolved, dispersed or supported metal-containing catalyst complex by using, as the catalyst complex, a compound I Zn+[MXa(OR)b]n−·Lx (I) M metal atom from the group of boron, aluminum, gallium, indium and thallium, R each independently aliphatic, heterocyclic or aromatic hydrocarbon radicals which have in each case from 1 to 18 carbon atoms and may comprise fluorine atoms, or silyl groups comprising C1 to C18 hydrocarbon radicals, X halogen atoms, Z proton (n=1), optionally substituted ammonium (n=1) or n-valent metal cation, L neutral solvent molecules, a integer from 0 to 3, b integer from 1 to 4, where a+b=4, and x≧0.
摘要翻译:通过使用作为催化剂配合物的化合物,在溶解的,分散的或负载的含金属的催化剂配合物的存在下,通过在液相中聚合异丁烯来制备具有Mn = 500至1000000的高活性异丁烯均聚物或共聚物 I <?in-line-formula description =“In-line Formulas”end =“lead”?> Zn + [MXa(OR)b] n -.Lx(I)<?in-line-formula description = 来自硼,铝,镓,铟和铊的组中的“式”末端=“尾”→M金属原子,R各自独立地为具有1至18个碳原子的脂族,杂环或芳族烃基,并且可以 包含氟原子或甲硅烷基,包括C1至C18烃基,X卤素原子,Z质子(n = 1),任选取代的铵(n = 1)或n价金属阳离子,L中性溶剂分子, 到3,b从1到4的整数,其中a + b = 4,x> = 0。
摘要:
Preparation of polyisobutylene having a content of terminal double bonds of more than 50% by polymerizing isobutene using a polymerization catalyst customary therefor from a technical 1-butene-, 2-butene- and isobutene-containing C4 hydrocarbon stream which may comprise up to 3000 ppm by weight, of 1,3-butadiene, by reducing the content of oxygenates in the C4 hydrocarbon stream before the polymerization of the isobutene by contacting it with an inorganic adsorbent at a pressure of from 1 to 20 bar and a temperature of from 20 to 220° C.
摘要:
The present invention relates to a process for the pretreatment of hydroamination catalysts, wherein the hydroamination catalyst is brought into contact with an ammonia-comprising mixture before the reaction of olefins with ammonia, a primary or secondary amine, with the ammonia-comprising mixture comprising less than 40% by weight of olefinThe invention further relates to a process for preparing alkylamines by reaction of olefins with ammonia, primary or secondary amines over a hydroamination catalyst, wherein the hydroamination catalyst is pretreated according to the invention before the reaction of the olefins by bringing the hydroamination catalyst into contact with an ammonia-comprising mixture comprising less than 40% by weight of olefin.
摘要:
A process for preparing a primary amine with a tertiary alpha-carbon atom by reacting a tertiary alcohol with ammonia in the presence of a heterogeneous catalyst, by performing the reaction in the presence of a non-microporous, non-zeolitic aluminosilicate as a catalyst, where the aluminosilicate has a molar Al/Si ratio in the range from 0.1 to 30.
摘要:
A) Provision of an n-butane-containing feed gas stream a; B) introduction of the n-butane-containing feed gas stream a into at least one dehydrogenation zone and nonoxidative catalytic dehydrogenation of n-butane to give a product gas stream b comprising n-butane, 1-butene, 2-butene, butadiene, hydrogen, low-boiling secondary constituents and possibly water vapor; C) removal of hydrogen, the low-boiling secondary constituents and, if appropriate, water vapor to give a C4 product gas stream c consisting essentially of n-butane, 1-butene, 2-butene and butadiene; D) separation of the C4 product gas stream c into a recycle stream d1 consisting essentially of n-butane and a stream d2 comprising 1-butene, 2-butene and butadiene by extractive distillation and recirculation of the recycle stream d1 consisting essentially of n-butane to the dehydrogenation zone; E) introduction of the stream d2 comprising 1-butene, 2-butene and butadiene into a selective hydrogenation zone and selective hydrogenation of butadiene to 1-butene and/or 2-butene to give a stream e comprising 1-butene and 2-butene; F) introduction of the stream e comprising 1-butene and 2-butene and a circulating stream g comprising 1-butene and 2-butene into a distillation zone and isolation of a desired product stream f1 consisting essentially of 1-butene to leave a 2-butene-containing stream f2; G) introduction of the 2-butene-containing stream f2, if appropriate after a purge gas stream has been separated off, into an isomerization zone and isomerization of 2-butene to 1-butene so as to give a circulating stream g comprising 1-butene and 2-butene and recirculation, if appropriate after a purge gas stream has been separated off from the circulating gas stream g, of the circulating gas stream g to the distillation zone.
摘要翻译:A)提供含正丁烷的进料气流a; B)将含正丁烷的原料气流a引入至少一个脱氢区和正丁烷的非氧化催化脱氢,得到包含正丁烷,1-丁烯,2-丁烯,丁二烯, 氢,低沸点二级成分和可能的水蒸气; C)除去氢气,低沸点二级成分,如果合适的话,除去水蒸气,得到基本上由正丁烷,1-丁烯,2-丁烯组成的C 4 H 4产物气流c, 丁二烯 D)将C 4 H 4产物气流c分离成基本上由正丁烷组成的再循环料流d1和包含1-丁烯,2-丁烯和丁二烯的料流d2,通过萃取蒸馏和再循环 基本上由正丁烷组成的再循环流d1到脱氢区; E)将包含1-丁烯,2-丁烯和丁二烯的料流d2引入选择性氢化区并将丁二烯选择性氢化为1-丁烯和/或2-丁烯,得到包含1-丁烯和2-丁烯的料流e ; F)将包含1-丁烯和2-丁烯的流e和包含1-丁烯和2-丁烯的循环流g引入蒸馏区并分离基本上由1-丁烯组成的所需产物流f1以留下2 含丁烯的流f2; G)引入含有2-丁烯的料流f2,如果在吹扫气体流已经分离出之后适当,将其引入异构化区域并将2-丁烯异构化成1-丁烯,从而得到包含1-丁烯的循环流g, 丁烯和2-丁烯,并且如果适当,在将循环气流g从循环气流g分离出吹扫气流之后再循环到蒸馏区。
摘要:
A column is described for carrying out reactive distillations in the presence of a heterogeneous particulate catalyst having an ordered packing or random packings which form intermediate spaces in the column interior, the quotient of the hydraulic diameter for the gas flow through the ordered packing or the random packings and the equivalent diameter of the catalyst particles being in the range from 2 to 20, preferably in the range from 5 to 10, in such a manner that the catalyst particles are introduced into the intermediate spaces, distributed and discharged loose under the action of gravity.
摘要:
The present invention relates to a process for preparing hydroformylation products of olefins having at least four carbon atoms, in which a high proportion of both the linear Ci-olefins having a terminal double bond comprised in the olefin-comprising feed used and of the linear Ci-olefins having an internal double bond is converted into hydroformylation products. Furthermore, the invention relates to a process for preparing 2-propylheptanol which comprises such a hydroformylation process.
摘要:
A process for preparing 1-butene, which includes nonoxidatively, catalytically dehydrogenating n-butane to obtain a product gas stream of n-butane, 1-butene, 2-butene, butadiene, hydrogen, and secondary constituents; removing hydrogen and the secondary constituents to obtain a C4 product gas stream; separating the C4 product stream into a recycle stream of n-butane and a stream of 1-butene, 2-butene and butadiene by extractive distillation, and recirculating the recycle stream to the dehydrogenation zone; introducing the 1 -butene, 2-butene and butadiene stream into a selective hydrogenation zone and selective hydrogenation of butadiene to 1-butene and/or 2-butene to obtain a stream of 1-butene and 2-butene; introducing the 1-butene and 2-butene stream, and a circulating stream of 1-butene and 2-butene into a distillation zone and isolation of a product stream; and introducing the 2-butene-containing stream into an isomerization zone to obtain a circulating stream of 1-butene and 2-butene, and recirculating the circulating stream to the distillation zone.