Hydrophobic catalyst and preparation method and application thereof

• Main Authors: WANG QIYAN, CHEN XINQING, ZENG GAOFENG, SIMA RUI, SUN YUHAN, LIU ZIYU
• Format: Patent
• Language: Chinese; English
• Published: 27.06.2017
• 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

The invention discloses a hydrophobic catalyst. The hydrophobic catalyst is prepared from, by total mass, a vanadium-titanium-sulfur catalyst and a water repellent agent, wherein the mass ratio of the water repellent agent to the vanadium-titanium-sulfur catalyst is 0.1-1.0. The invention provides a hydrophobic vanadium-titanium catalyst, a preparation method thereof and an application technology of the catalyst in one-step methyl alcohol oxidization for methylal preparation. The catalyst uses vanadium oxide as an active component, uses titanic oxide as an assistant and has the advantages of being good in hydrophobicity, high in methyl alcohol conversion rate, good in stability, good in repeatability and high in methylal selectivity. 本发明公开了种疏水型催化剂，以所述疏水型催化剂的原料组分的总质量为基准计，所述疏水型催化剂包括钒钛硫催化剂和疏水剂，所述疏水剂与钒钛硫催化剂质量比为0.1~1.0。本发明提供了种疏水型钒钛催化剂及其制备方法及其在甲醇步氧化制甲缩醛中的应用技术，该催化剂以钒氧化物为活性组分、以钛氧化物为助剂，具有疏水性强，甲醇转化率高，稳定性好，易重复好以及甲缩醛选择性高的优点。