METHOD FOR PRODUCING CATALYST FOR ACRYLIC ACID PRODUCTION AND CATALYST THEREOF, AND METHOD FOR PRODUCING ACRYLIC ACID USING SAID CATALYST

• Main Authors: SHIMA MASAHIDE, IGUCHI NORIHIKO, NISHIGUCHI TOSHIYA
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2017
• 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

PROBLEM TO BE SOLVED: To provide, in producing acrylic acid from acrolein, a method for producing a catalyst and a catalyst thereof suitable for producing acrylic acid that is excellent in catalytic performance such as catalytic activity, selectivity, etc., and to provide a method for producing acrylic acid using said catalyst.SOLUTION: The method for producing catalyst for acrylic acid production is a method for producing a catalyst containing, as essential components, molybdenum and vanadium, for producing acrylic acid by catalytic gas phase oxidation of acrolein in the presence of molecular oxygen or molecular oxygen-containing gas, and is characterized to include a step of calcination in the presence of superheated steam.SELECTED DRAWING: None 【課題】アクロレインからアクリル酸を製造するに際し、触媒活性、選択性等の触媒性能に優れたアクリル酸を製造するのに好適な触媒の製造方法とその触媒、ならびに該触媒を用いたアクリル酸の製造方法を提供する。【解決手段】モリブデンおよびバナジウムを必須成分として含有するアクロレインを分子状酸素または分子状酸素含有ガスの存在下で接触気相酸化してアクリル酸を製造するための触媒の製造方法であって、過熱水蒸気存在下で焼成する工程を含むことを特徴とするアクリル酸製造用触媒の製造方法。【選択図】 なし