FERRITE CATALYST FOR OXIDATIVE DEHYDROGENATION REACTION, METHOD FOR PREPARING SAME, AND METHOD FOR PREPARING BUTADIENE BY USING SAME

• Main Authors: HAN, Sang Jin, LEE, Joo Hyuck, HAN, Jun Kyu, SUH, Myung Ji, CHOI, Dae Heung, HWANG, Ye Seul, KIM, Seong Min, HWANG, Sun Hwan, CHA, Kyong Yong, NAM, Hyun Seok, KANG, Jun Han, KO, Dong Hyun
• Format: Patent
• Language: English; French; Korean
• Published: 02.08.2018
• 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 present invention relates to a ferrite catalyst for an oxidative dehydrogenation reaction and a method for preparing the same and, more specifically, to: a method for preparing a ferrite catalyst for an oxidative dehydrogenation reaction, comprising, in an epoxide-based sol-gel method, a first sintering step of performing sintering at 70-200 °C, and a second sintering step of performing sintering by increasing the temperature from a temperature higher than 200 °C and lower than or equal to 250 °C to 600-900 °C; and the like. According to the present invention, since an epoxide-based sol-gel method is used, a method for preparing a catalyst is simple, a material comprising a pure spinel structure not including an α-Fe2O3 phase can be obtained, and a large surface area and a macroporous structure is obtained, and thus a catalyst having a higher reactivity than a catalyst prepared by a conventional technique, and the like can be provided. La présente invention concerne un catalyseur de ferrite pour une réaction de déshydrogénation oxydative et son procédé de préparation et, plus spécifiquement, un procédé de préparation d'un catalyseur de ferrite pour une réaction de déshydrogénation oxydative, comprenant, dans un procédé sol-gel à base d'époxyde, une première étape de frittage consistant à effectuer un frittage à 70-200 °C, et une deuxième étape de frittage consistant à effectuer un frittage en augmentant la température à partir d'une température supérieure à 200 °C et inférieure ou égale à 250 °C jusqu'à 600 à 900 °C ; et similaire. Selon la présente invention, du fait de l'utilisation d'un procédé sol-gel à base d'époxyde, un procédé de préparation d'un catalyseur est simple, un matériau comprenant une structure de spinelle pur ne contenant pas de phase α-Fe2O3 peut être obtenu et une grande superficie ainsi qu'une structure macroporeuse sont obtenues, ce qui permet de produire un catalyseur ayant une réactivité plus élevée qu'un catalyseur préparé par une technique classique, et similaire. 본 발명은 산화적 탈수소화 반응용 페라이트 촉매 및 이의 제조방법에 관한 것으로, 보다 상세하게는 에폭사이드(epoxide)기반의 졸-겔(sol-gel)법에 있어서, 소성하는 단계가 70 내지 200℃에서 소성하는 제1 소성단계; 및 200℃ 초과 내지 250℃에서 600 내지 900℃까지 승온하여 소성하는 제2 소성단계;를 포함하는 것을 특징으로 하는 산화적 탈수소화 반응용 페라이트 촉매의 제조방법 등에 관한 것이다. 본 발명에 따르면, 에폭사이드(epoxide)기반의 졸-겔(sol-gel)법을 이용하여, 촉매의 제조방법이 간단하고 α-Fe2O3상이 포함되지 않은 순수한 스피넬상 구조로 이루어진 물질을 얻을 수 있으며, 넓은 표면적과 매크로포로스(macroporouse) 구조를 갖게 되어, 종래기술로 제조한 촉매보다 높은 반응성을 갖는 촉매 등을 제공하는 효과가 있다. 〔대표도〕도 2