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1. WO2020107539 - PREPARATION METHOD FOR CATALYST FOR PRODUCING METHYL METHACRYLATE, AND APPLICATION THEREOF

Publication Number WO/2020/107539
Publication Date 04.06.2020
International Application No. PCT/CN2018/120758
International Filing Date 13.12.2018
IPC
B01J 23/89 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
70of the iron group metals or copper
89combined with noble metals
B01J 23/68 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/113
38of noble metals
54combined with metals, oxides or hydroxides provided for in groups B01J23/02-B01J23/36118
66Silver or gold
68with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
C07C 67/44 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
44by oxidation-reduction of aldehydes, e.g. Tishchenko reaction
C07C 69/54 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
69Esters of carboxylic acids; Esters of carbonic or haloformic acids
52Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
533Monocarboxylic acid esters having only one carbon-to-carbon double bond
54Acrylic acid esters; Methacrylic acid esters
CPC
B01J 23/002
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
002Mixed oxides other than spinels, e.g. perovskite
B01J 23/685
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
38of noble metals
54combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
66Silver or gold
68with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
683with chromium, molybdenum or tungsten
685with chromium
B01J 23/688
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
38of noble metals
54combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
66Silver or gold
68with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
688with manganese, technetium or rhenium
B01J 23/8946
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
70of the iron group metals or copper
89combined with noble metals
8933also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
8946with alkali or alkaline earth metals
B01J 2523/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2523Constitutive chemical elements of heterogeneous catalysts
C07C 67/44
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
44by oxidation-reduction of aldehydes, e.g. Tishchenko reaction
Applicants
  • 中国科学院大连化学物理研究所 DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES [CN]/[CN]
Inventors
  • 黄家辉 HUANG, Jiahui
  • 吕强 LV, Qiang
Agents
  • 大连东方专利代理有限责任公司 DALIAN EAST PATENT AGENT LTD.
Priority Data
201811446363.229.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PREPARATION METHOD FOR CATALYST FOR PRODUCING METHYL METHACRYLATE, AND APPLICATION THEREOF
(FR) PROCÉDÉ DE PRÉPARATION D'UN CATALYSEUR POUR LA PRODUCTION DE MÉTHACRYLATE DE MÉTHYLE, ET SON APPLICATION
(ZH) 一种生产甲基丙烯酸甲酯的催化剂的制备方法及其应用
Abstract
(EN)
A catalyst for producing methyl methacrylate (MMA), and preparation method therefor and application thereof. The catalyst comprises a carrier and an active center supported on the carrier. The active center comprises gold, a transition metal, and a lanthanide metal. The carrier comprises SiO2, Al2O3, and one of an alkali metal or an alkali earth metal. The loading of the gold is 0.05-0.98 wt%, the loading of the lanthanide metal is 1-2.5 wt%, and the loading of the transition metal is 1-2.5 wt%. A polymer protection method is used as the preparation method and comprises: fully mixing a precursor of gold with a reductant and deionized water to obtain gold sol; sequentially adding the gold sol to a lanthanide metal and a transition metal; then adding a carrier; continuing to stir for 2-20 h and slowly rising the temperature to 65-85°C; after the stirring ends, lowering the temperature to the room temperature; and carrying out still standing, filtering, washing, drying, and roasting to obtain a catalyst. The catalyst is applied to a reaction for producing MMA, has excellent activity and stability, features low costs, high methacrolein conversion rate and MMA selectively, and is suitable for industrial production.
(FR)
L'invention concerne un catalyseur pour la production de méthacrylate de méthyle (MMA), son procédé de préparation et son application. Le catalyseur comprend un support et un centre actif supporté sur le support. Le centre actif comprend de l'or, un métal de transition, et un métal lanthanide. Le support comprend SiO2, Al2O3, et un métal alcalin ou un métal alcalino-terreux. La charge de l'or est de 0,05-0,98 % en poids, la charge du métal lanthanide est de 1 à 2,5 % en poids, et la charge du métal de transition est de 1 à 2,5 % en poids. Un procédé de protection de polymère est utilisé en tant que procédé de préparation et comprend les étapes suivantes : mélanger complètement un précurseur d'or avec un réducteur et de l'eau désionisée afin d'obtenir un sol d'or ; ajouter séquentiellement le sol d'or à un métal lanthanide et à un métal de transition ; puis ajouter un support ; continuer à agiter pendant 2-20 h et élever lentement la température jusqu'à 65-85 °C ; après les extrémités d'agitation, abaisser la température jusqu'à la température ambiante ; et effectuer un maintien à la verticale, un filtrage, un lavage, un séchage et un rôtissage afin d'obtenir un catalyseur. Le catalyseur est appliqué à une réaction de production de MMA, a une excellente activité et une excellente stabilité, présente de faibles coûts, un taux de conversion de méthacroléine élevé et un MMA de manière sélective, et est approprié pour une production industrielle.
(ZH)
一种生产甲基丙烯酸甲酯的催化剂及其制备方法和应用,该催化剂包括载体和负载在载体上的活性中心;所述活性中心包括金、过渡金属和镧系金属;所述载体包括SiO 2、Al 2O 3和碱金属或碱土金属中一种;金的负载量为0.05wt%-0.98wt%,镧系金属的负载量为1wt%-2.5wt%,过渡金属的负载量为1wt%-2.5wt%。制备方法采用高分子保护法,将金的前驱体与还原剂和去离子水充分混合得到金溶胶,依次加入镧系金属和过渡金属,然后加入载体,继续搅拌2-20h并缓慢升温至65-85℃,搅拌结束后降至室温,经静置过滤、洗涤、烘干、焙烧得到催化剂。该催化剂应用在生产甲基丙烯酸甲酯的反应中,具有优异的活性和稳定性而且催化剂价格低廉,甲基丙烯醛的转化率和MMA的选择性高,适合工业化生产。
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