CATALYST FOR USE IN PRODUCTION OF METHYL METHACRYLATE, AND METHOD FOR PRODUCING METHYL METHACRYLATE

• Main Authors: HIROKAWA SAORI, SUGANO YUUICHI, HIGUCHI KATSUMI
• Format: Patent
• Language: English; Korean
• Published: 30.08.2016
• 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

본 발명에 의하면, 합성 포자사이트형 제올라이트와 층상 규산 마그네슘 화합물을 포함하는 메타크릴산 메틸 제조용 촉매 성형체로서, 상기 층상 규산 마그네슘 화합물 중의 황 함유율이 0.10중량% 이하인, 메타크릴산 메틸 제조용 촉매 성형체를 제공할 수 있다. 또, 본 발명에 의하면, 상기 메타크릴산 메틸 제조용 촉매 성형체를 이용하여 α-하이드록시아이소뷰티르산 메틸의 기상 접촉 반응을 행하는 공정을 갖는 것을 특징으로 하는 메타크릴산 메틸의 제조 방법을 제공할 수 있다. According to the present invention, a molded catalyst for use in the production of methyl methacrylate can be provided. The molded catalyst comprises synthetic faujasite-type zeolite and a layered magnesium silicate compound, wherein the sulfur content in the layered magnesium silicate compound is 0.10% by weight or less. According to the present invention, a method for producing methyl methacrylate can also be provided. The method is characterized by comprising a step of carrying out a gas-phase catalytic reaction of methyl ±-hydroxyisobutyrate using the above-mentioned molded catalyst for use in the production of methyl methacrylate.