Methods of Preparing a Catalyst

• Main Authors: CLEAR KATHY S, SCHWERDTFEGER ERIC, PRAETORIUS JEREMY, MCDANIEL MAX
• Format: Patent
• Language: English; Korean
• Published: 15.10.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

촉매의 제조 방법으로서, a) 비수성 용매와 카르복실산과 크롬-함유 화합물을 접촉시켜 산성 혼합물을 형성하는 단계; b) 티타늄-함유 화합물을 산성 혼합물과 접촉시켜 티타늄 처리 용액을 형성하는 단계; c) 약 0.1 중량% 내지 약 20 중량% 물을 포함하는 사전형성된 실리카-지지체를 티타늄 처리 용액과 접촉시켜 전촉매를 형성하는 단계; 및 d) 전촉매를 열처리하여 촉매를 형성하는 단계를 포함하는, 방법. 촉매의 제조 방법으로서, a) 비수성 용매와 카르복실산을 접촉시켜 산성 혼합물을 형성하는 단계; b) 티타늄-함유 화합물을 산성 혼합물과 접촉시켜 티타늄 처리 용액을 형성하는 단계; c) 약 0.1 중량% 내지 약 20 중량% 물을 포함하는 사전형성된 크로미네이트화(chrominated) 실리카-지지체를 티타늄 처리 용액과 접촉시켜 전촉매를 형성하는 단계; 및 d) 전촉매를 열처리하여 촉매를 형성하는 단계를 포함하는, 방법. A method of preparing a catalyst comprising: a) contacting a non-aqueous solvent and a carboxylic acid to form an acidic mixture wherein a volume ratio of non-aqueous solvent to carboxylic acid is from about 1:1 to about 100:1, wherein the non-aqueous solvent is an alcohol solvent, a ketone solvent, an ester solvent or combinations thereof; b) forming a titanium treatment solution by contacting a titanium-containing compound with the acidic mixture of step a); c) contacting a pre-formed chrominated silica-support comprising from about 0.1 wt.% to about 20 wt.% water with the titanium treatment solution to form a pre-catalyst; and d) thermally treating the pre-catalyst by heating to a temperature of from about 400 °C to about 1000 °C for a time period of from about 1 minute to about 24 hours to form the catalyst.