Bismuth molybdate-based catalyst, method for production thereof and use of catalyst in oxidation of propylene to acrolein

• Main Authors: CHERIFI, AZIZ, MILLET JEAN MARC, ROSA CATARINA, BELLIEBAKA, VIRGINIE
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2022
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a method for producing a heterogeneous mixed oxide catalyst comprising at least one active phase based on bismuth molybdate and one promoter based on iron molybdate and at least one of the two elements cobalt and nickel, said method comprising the following steps: preparing a precursor mixture of said mixed oxide in a solvent, reacting the precursor by a microwave-assisted hydrothermal reaction, and separating the mixed oxide to obtain the catalyst. The subject matter of the invention consists of the catalyst and the catalytic system thus produced and the use of the catalyst and the catalyst system, in particular in the oxidation of propylene to acrolein. 本发明涉及一种生产多相混合氧化物催化剂的方法，该催化剂包含至少一种基于钼酸铋的活性相和一种基于钼酸铁以及钴和镍两种元素中的至少一种的助催化剂，所述方法包括以下步骤：在溶剂中制备所述混合氧化物的前体混合物，通过微波辅助水热反应使所述前体反应，和分离所述混合氧化物以获得催化剂。本发明的主题由这样制备的催化剂和催化系统以及该催化剂和该催化剂系统的用途特别是在丙烯氧化成丙烯醛中的用途组成。