石油炼制与化工
• 加工工艺 • 上一篇 下一篇
李平辉 刘跃进
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摘要： 以30%过氧化氢作为氧化剂，在相转移试剂和磷钨酸催化剂作用下催化油酸制备壬二酸，考察了催化剂磷钨酸用量、过氧化氢用量、溶液pH值、相转移试剂用量、反应温度等因素对壬二酸产率的影响。结果表明，最佳合成条件是：每100 g油酸中催化剂磷钨酸用量2 g、30%过氧化氢用量400 mL、相转移试剂用量10 g；溶液pH值5.0~6.2，磷钨酸催化剂重复使用次数不超过3次，反应温度控制在95～105 ℃。在该反应条件下，壬二酸的产率可达到68.4%。
关键词: 壬二酸, 油酸, 过氧化氢, 催化剂, 氧化
Abstract: Azelaic acid was prepared through oxidation of oleic acid with 30% aqueous hydrogen peroxide, and in the presence of phase transfer agent and phosphor-tungstenic acid catalyst. The effects of catalyst dosage, the amounts of hydrogen peroxide and phase transfer agent, the pH value of the solution, the reuse of catalyst and the reaction temperature on the azelaic acid yield were investigated. Test results showed that under the optimum conditions of using per 100g oleic acid, adding 2g of phosphor-tungstenic acid catalyst, 400 mL of 30% aqueous hydrogen peroxide, 10g of phase transfer agent, controlling the solution pH in a range of 5.0~6.2 and the reaction temperature in the range of 95℃～105℃, the yield of azelaic acid could reach 68.4%. Furthermore, the reuse of catalyst should not be over 3 times.
Key words: azelaic acid, oleic acid, hydrogen peroxide, catalyst, oxidation
李平辉 刘跃进. 相转移催化氧化法合成壬二酸的研究[J]. 石油炼制与化工, doi: .
. STUDY ON THE SYNTHESIS OF AZELAIC ACID BY PHASE TRANSFER CATALYTIC OXIDATION[J]. Petroleum Processing and Petrochemicals, doi: .
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