二氧化钛负载磷钨酸催化合成己二酸

Synthesis of adipic acid catalyzed by phosphotungstic acid supported on titania

摘要: 制备了二氧化钛负载磷钨酸催化剂H₃PW₁₂O₄₀/TiO₂.考察了H₃PW₁₂O₄₀/TiO₂对0%过氧化氢氧环己烯合成己二酸的催化作用.实验结果表明,使用H₃PW₁₂O₄₀/TiO₂催化剂.55g,环己烯10.5mL,0%过氧化氢55mL,在90℃下反应6h,己二酸产率达到55%以上.研究了H₃PW₁₂O₄₀/TiO₂用量、过氧化氢用量、反应时间对己二酸收率的影响.催化剂H₃PW₁₂O₄₀/TiO₂能重复使用.

Abstract: H₃₂PW₁₂O₄₀/TiO₂ was prepared by phosphotungstic acid supported on titania.The effect of the catalyst H₃₂PW₁₂O₄₀/TiO₂ on direct oxidation of cyclohexene to adipic acid with 30% H₂O₂ was investigated.Results show that he yield of adipic acid is up to 55% when using 3.55 g H₃₂PW₁₂O₄₀/TiO₂,10.5 mL cyclohexene and 55 mL 30% H₂O₂ under 90℃ for 6 h.The amount of catalyst H₃₂PW₁₂O₄₀/TiO₂,the amount of 30% H₂O₂ and the effect of reaction time on the isolated yield of adipic acid was studied.Catalyst H₃₂PW₁₂O₄₀/TiO₂ can be reused.