Catalyst used for synthesis of n-dodecanol ester, and preparation method and application thereof

• Main Authors: YE CHANGSHEN, YANG CHEN, QIU TING, DA HAIRONG, WANG HONGXING, LI LING, HUANG ZHIXIAN, YANG JINBEI, WANG XIAODA, CHEN JINYI
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2017
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a catalyst used for synthesis of n-dodecanol ester, and a preparation method and application thereof. According to the invention, gamma-Al2O3 is used as a carrier, ethanol is used as a solvent, and active components are loaded onto gamma-Al2O3 by using an impregnation method under the action of a surfactant so as to prepare the catalyst; and the loading amount of the active components of the catalyst is 30 to 50 wt%, and the pH value of the catalyst is 35 to 38. Isobutyraldehyde is used as a raw material and is subjected to aldol condensation and a Cannizzaro reaction under the catalysis of the catalyst so as to synthesize n-dodecanol ester. The method provided by the invention overcomes the problem of tedious process flow of a traditional inorganic base two-stage reaction and the problems of high toxicity of catalysis by Ba(OH)2 and severe corrosivity of NaOH to equipment. The catalyst is simple to prepare, easy to separate and recover, repeatedly usable, free of corrosion, mild in re