Abstract:
PROBLEM TO BE SOLVED: To provide a method for increasing hydroamination activity of a calcined zeolite catalyst which is not deactivated by hydroamination, and to provide a method for producing an alkylamine by reacting an olefin with ammonia, a primary amine or a secondary amine under a hydroamination condition on the calcined zeolite catalyst having the increased activity. SOLUTION: This method for producing the alkylamine comprises reacting the olefin with the ammonia, the primary amine or the secondary amine under the hydroamination condition on the calcined zeolite catalyst, wherein the calcined zeolite catalyst is thermally activated within a period after start of the reaction at a temperature of 100 to 550°C in a flow of gas comprising air, nitrogen, the other inert gas or a mixture thereof. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
The invention relates to a method for producing a C4-C12 olefin (olefin A) from another C4-C12 olefin (olefin B), olefin (A) and olefin (B) differing in terms of the position of the double bond. According to said method, a gaseous mixture containing olefin (B) and between 0.01 and 10 wt. %, in relation to the total quantity of hydrocarbon compounds in said mixture, of a compound having a dipole moment of between 0.5 and 5 Debyes (compound P) is brought into contact with a basic catalyst at a temperature of between 200 and 700 DEG C.
Abstract:
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.
Abstract:
The disclosure involves a process for the preparation of butadiene and 1-butene. The process includes at least a first catalytic dehydrogenation of n-butane to obtain a gas stream which is followed by at least a second oxidative dehydrogenation to form a second gas stream. The second gas stream is then subjected to distillation and isomeration steps to obtain butadiene and 1-butene.
Abstract:
The supported catalyst has one or more metal oxides as active components on a carrier for aldol condensation. The catalyst carrier is gamma -aluminum oxide. The active components include one or more oxides of rare earth metals. The concentration of the active components is 5-12 wt.% of the catalyst carrier weight. The active component is preferably yttrium oxide or praseodymium oxide. The condensation column packing (1) is composed of packing sheets (2) with straight kinks (5) forming angled kink surfaces (6). Catalyst particles (4) fill the space (3) between neighboring sheets.
Abstract:
Special multi-metal cyanide compounds in which at least one of the metals is iron(II) or iron(III) (other than the usual alkali or alkaline earth metal or quaternary ammonium ion) are used as catalysts in a method for the production of hydroxyalkyl esters by reacting carboxylic acids with alkylene oxides. A method for the production of hydroxyalkyl esters of carboxylic acids involves reacting carboxylic acids with alkylene oxides in presence of multi-metal cyanide catalysts of formula (I); M zM a(M (CN)b(A)c)d.fM gXn.mM pYq.h(H2O).eL.kP (I); M = metal ion(s) selected from Zn , Fe , Fe , Co , Ni , Mn , Co , Sn , Pb , Mo , Mo , Al , V , V , Sr , W , W , Cr , Cr , Cd , Hg , Pd , Pt , V , Mg , Ca , Ba and Cu ; M = metal ion(s) selected from Fe , Fe , Co , Co , Mn , Mn , V , V , Cr , Cr , Rh , Ru and Ir , where M and M may be the same or different and at least one of these is Fe or Fe ; M = metal ion(s) selected from Li , Na , K , Rb , Cs , Mg , Ca , Sr and Ba or ammonium ions of formula R R R R N ; R -R = 1-6C hydrocarbyl A, X, Y = halide, hydroxide, sulfate, carbonate, cyanide, thiocyanate, isocyanate, cyanate, carboxylate, oxalate, nitrate, nitrosyl, hydrogen sulfate, phosphate, dihydrogen phosphate, hydrogen phosphate or hydrogen carbonate ions; L = a water-miscible ligand selected from alcohols, aldehydes, ketones, polyethers, esters, polyesters, polycarbonate, ureas, amides, prim., sec. and tert. amines, ligands with pyridine nitrogen, nitriles, sulfides, phosphides, phosphites, phosphanes, phosphonates and phosphates; e, f, k, h, m = 0 or more (fraction or integer); P = an organic additive; a, b, c, d, g, n, p, q, z = numbers compatible with the electroneutrality of (I), where c or z or c and z may be zero.
Abstract:
The present invention relates to a method for the production of hydroform ylation products from olefins having at least four carbon atoms. A high amou nt of the linear Ci-olefins with terminal double bonds that are present in t he inlet comprising olefins, and also of the linear Ci-olefins having intern al double bonds are converted to hydroformylation products. The invention fu rther relates to a method for the production of 2-propylheptanol, comprising said hydroformylation method.
Abstract:
La invencion se relaciona con un metodo para producir un flujo de producto que consiste sustancialmente de eteno (flujo de C2=), un flujo de producto que consiste substancialmente de propeno (flujo C3=), un flujo de producto que consiste substancialmente de isobuteno y, opcionalmente de otras olefinas que tiene 4 atomos de carbono (flujo C4=) y un flujo de producto que consiste substancialmente de 2-metil-2-buteno y, opcionalmente de 2-buteno (flujo C5=), y opcionalmente otro flujo de producto que contiene otros hidrocarburos (flujo Cx), que consiste opcionalmente de varios flujos parciales individuales. El metodo inventivo comprende un paso de metatesis que consiste en llevar un flujo de hidrocarburo de C4 que contiene cuando menos 15% en peso de 2-buteno, por lo menos 5% en peso de isobuteno y cuando menos 5% en peso de 1-buteno (flujo de alimentacion) a contacto con eteno en presencia de un catalizador de metatesis usual, el flujo de hidrocarburo asi formado se separa en los flujos C2=, C3=, C4=, y opcionalmente Cx y el flujo C5= se recicla parcial o totalmente en la etapa de metatesis.