Abstract:
PROBLEM TO BE SOLVED: To remove a halogenized substance from a nitrile mixture for enabling the production of an amine from the nitrile mixture afterwards by heat/treating the nitrile mixture containing the halogenized substance, adding a base to the heat-treated nitrile mixture and removing the base from the neutral mixture. SOLUTION: This method for removing a halogenized material presenting as a form of a phase transition catalyst from a nitrile mixture, is to perform a heat-treatment the nitride mixture containing the halogenized substance at 50-350 deg.C. The heat treatment is performed by setting the pressure and temperature for distilling the nitrile in the mixture at 50 m bar pressure, and 227-230 deg.C bottom temperature and 163 deg.C top temperature. Then, after adding 5-50 wt.% concentration of a base such as NaO into the nitrile mixture while agitating, the halogenized substance is removed from the nitrile mixture. And then, by hydrogenating the obtained nitrile in the presence of a catalyst such as Ni and Co at 60-160 deg.C, especially preferably 90130 deg.C to form an amine.
Abstract:
PROBLEM TO BE SOLVED: To economically and continuously obtain an alkylamine in a simplified apparatus by preheating only an amine stream or only an aldehyde stream fed by separated stream during feed and reacting the amine with the aldehyde on a fixed bed catalyst in a reactor. SOLUTION: Only an aldehyde stream [e.g. formaldehyde aqueous solution having 50-90 wt.%, preferably 65-75 wt.% water content based on total weight of the solution] or only an amine stream (preferably 30-80 wt.% piperazine aqueous solution) fed by separated stream is preheated during a feed (a molar ratio of piperazine to formaldehyde is 1:1.0 to 1:5, preferably 1:2 to 1:2.7) is and the aldehyde is reacted with the amine in a reactor in which these compounds are mixed in a catalyst bed on a fixed bed catalyst in the presence of an isolated hydrogen to continuously provide the objective alkylamine.
Abstract:
PROBLEM TO BE SOLVED: To provide a process for hydrogenating an aromatic compound, enabling to perfectly hydrogenate the aromatic compound in a high yield. SOLUTION: This process for hydrogenating an aromatic compound in which a least one hydroxyl group is bonded to an aromatic ring or an aromatic compound in which at least one amino group is bonded to an aromatic ring, in the presence of a catalyst comprising, as catalytically active component, at least one metal of transition group I, VII or VIII of the periodic table applied to a support, wherein the catalyst is obtainable by (a) dissolving the catalytically active compound or a precursor compound thereof in a solvent, (b) admixing the solution thus obtained with an organic polymer which is able to bind at least ten times its own weight of water, giving a swollen polymer, (c) subsequently mixing the swollen polymer with a catalyst support material and (d) shaping, drying and calcining the composition obtained in this way.
Abstract:
PROBLEM TO BE SOLVED: To enable to industrially simply and profitably obtain the subject compound from a primary amine and a diol by using a specific copper- containing hydrogenation/dehydrogenation catalyst. SOLUTION: This method for producing an N-substituted cyclic amine of formula I comprises reacting (C) a compound of the formula: R -NH2 [R is an (alkoxy)alkyl, an aryl, etc.,] with (D) a compound of the formula: HO-A-OH A is an alkylene (substituted by a group of the formula: R (R is R ), a group of the formula: (CH2 )n -[O-(CH )m ]r , [(m), (n) are each 2-8; (r) is 1-3]} in the presence of a coppercontaining catalyst. The copper-containing catalyst is obtained by impregnating an inactive carrier (e.g. silicon dioxide, a silicate or zeolite) with (A) hydrogen and (B) the aqueous ammine complex solution of an easily pyrolytic copper compound (e.g. copper carbonate, copper oxalate or copper formate)(preferably an ammoniacal copper carbonate solution), drying the impregnated carrier, and subsequently calcining the dried product, and contains the copper in an amount of 5-50wt.% converted into CuO on the basis of the whole amount of the calcined catalyst.
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject compound by reaction between an α,β-unsaturated nitrile and an alcohol using a specific diazabicycloalkene as basic catalyst without the need of any prior separation or neutralization of the catalyst for the addition reaction. SOLUTION: This compound is obtained by reaction between an α,β-unsaturated nitrile (e.g. acrylonitrile) and a monohydric, dihydric or trihydric alcohol (e.g. methanol, ethanol, 2-ethylhexanol, 2-methoxyethanol, benzyl alcohol) at -20 to 200°C using a diazabicycloalkene of the formula (H may be substituted with a 1-20C alkyl, 6-20C aryl or 7-20C arylalkyl; (n) and (m) are each 1-6) as basic catalyst {e.g. 1,5-diazabicyclo[4.3.0]nonene-5(DBN), 1,8- diazabicyclo[5.4.0]undecene-7(DBU)}; wherein the amount of the catalyst to be used is pref. 0.05-5 wt.% based on the alcohol. COPYRIGHT: (C)1999,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method which effects the subject reaction in the vapor phase advantageously from industrial, economical and environmental aspects in the presence of a catalyst composed of copper and Na2 O supported by a carrier composed of SiO2 and CaO. SOLUTION: This method effects the subject reaction in the presence of free hydrogen by passing 1,4-butanediol over an immobilized phase of catalyst composed of 4 to 40wt.%, preferably 4 to 32wt.%, of copper and 0 to 5wt.%, preferably 0 to 2wt.%, of Na2 O, each percentage being based on the total quantity of the catalyst, supported by a carrier composed of 80 to 100wt.%, preferably 90 to 100wt.%, of SiO2 and 0 to 20wt.%, preferably 0 to 10wt.%, of CaO, where the copper grains having an average diameter of 10 to 100nm are dispersed at a rate of 20 to 50% so as to have a surface area of 10 to 50m /g over the carrier, under the conditions of temperature: 150 to 300 deg.C, preferably 190 to 230 deg.C, absolute pressure: 1 to 40 bar, preferably about 1 bar, and hourly space velocity of 1,4-butanediol: 0.2 to 20kg, preferably 0.5 to 7.5kg, per kg copper, with the carrier gas containing free hydrogen being reused as the recycle gas.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for reacting an organic compound by which the reaction of the organic compound is performed in extremely high yield or nearly complete conversion by using a specific catalyst. SOLUTION: All organic compound of a monomer and a polymer, especially an organic compound having a treatable group by hydrogen such as C-C double bond and C-C triple bond are reacted in the presence of a uniform ruthenium compound or a mixture of two or more kinds thereof deposited on a carrier in situ in the method for reacting an organic compound. The reaction is preferably hydrogenation, dehydrogenation, hydrogenolysis, amination hydrogenation or dehalogenation. The catalyst is the supported catalyst obtained by subjecting a solution of the ruthenium compound or two or more kinds thereof to pass through in the carrier or on the carrier to form the uniform ruthenium compound or mixture of two or more compound thereof deposited on the carrier. The smallest amount of a byproduct or a degrading product is formed during the hydrogenation and the reaction is performed without separation, after- treatment and recycle of the catalyst in the method.
Abstract:
Verfahren zur Umsetzung einer organischen Verbindung in Gegenwart eines Katalysators, der als Aktivmetall Ruthenium alleine oder zusammen mit mindestens einem Metall der I., VII. oder VIII. Nebengruppe des Periodensystems in einer Menge von 0,01 bis 30 Gew.-%, bezogen auf das Gesamtgewicht des Katalysators, aufgebracht auf einem Träger, umfaßt, dadurch gekennzeichnet, daß 10 bis 50% des Porenvolumens des Trägers von Makroporen mit einem Porendurchmesser im Bereich von 50 nm bis 10.000 nm und 50 bis 90% des Porenvolumens des Trägers von Mesoporen mit einem Porendurchmesser im Bereich von 2 bis 50 nm gebildet werden, wobei sich die Summe der Porenvolumina zu 100% addiert, sowie den Katalysator an sich.
Abstract:
A process for the production of beta -alkoxy-nitriles which is carried out in the presence of a basic diazabicycloalkene catalyst. Production of beta -alkoxy-nitriles which involves reaction of alpha , beta -unsaturated nitriles with mono-, di- or tri- valent alcohols in the presence of a basic diazabicycloalkene of formula (1), at (-) 20-200 degrees C. n, m = 1-6; and where the 1-4 H atoms are optionally substituted by R -R ; R -R = 1-20C alkyl, 6-20C aryl or 7-20C arylalkyl. An Independent claim is also included for a production process of a gamma -alkoxy-amine by hydrogenation of the beta -alkoxy-nitrile in the presence of a hydrogenation catalyst and the catalyst of formula (1).
Abstract:
A fuel contains small amts. of polyetheramines of formula R1-(OBu)n-NR2R3 (I), R1 = 2-30C alkyl, R2 and R3 = H, 1-8C alkyl, aminoalkylene of formula -R4-NR5 (II) or polyaminoalkylene of formula -(R4-NR5)m-R6 (III). R4 = 2-10C alkylene, R5 and R6 = H or 1-8C alkyl, Bu - butylene residue derived from butylene oxide, and n = 12-28.