The Green Synthesis of Adipic Acid from Cyclohexane catalyzed by Precious Metal Supported Catalysts
HUANG Binguang1,2, ZHAO Jiajin3, FAN Yu4, ZHANG Liwei1, SENG Vichhorda1, ZHU Mingqiao1,2
1. College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, China;
2. Institute of Zhejiang University-Quzhou, Quzhou 324000, China;
3. Zhejiang Hengyi Petrochemical Research Institute Company Limited, Hangzhou 311200, China;
4. Hangzhou Namei Zhikang Technology Company Limited, Hangzhou 311305, China
Abstract：Considering the serious environmental pollution caused by nitric acid oxidation in the traditional two-step synthesis of adipic acid from cyclohexane, the one-step synthesis route was regarded as a green one and studied in this work. The Pt, Pd, and Au nanoparticles were loaded onto activated carbon surface by chemical reduction method to prepare supported single metal catalysts (Pt2.00/C, Pd2.00/C, Au2.00/C) and bimetallic catalysts (Pt1.00-Pd1.00/C, Pt1.00-Au1.00/C). Then the catalytic performance of these catalysts for cyclohexane oxidation had been investigated. The effects of reaction time, reaction temperature and oxygen pressure on the performance of Pt1.00-Pd1.00/C for cyclohexane oxidation, as well as its recyclability, were investigated. The results showed that among the series of catalysts, Pt1.00-Pd1.00/C exhibited the best catalytic performance. A desired catalytic performance was achieved under the reaction conditions of 30 mg of Pt1.00-Pd1.00/C, 6 g of cyclohexane, 7 mL of butanone (solvent), 0.06 g of cyclohexanone (reaction initiator), 6 h of reaction time, 125 ℃ of reaction temperature, and 1.5 MPa of oxygen pressure. The cyclohexane conversion was 31.7%with adipic acid selectivity of 44.3%. And the recycling performance of Pt1.00-Pd1.00/C was good, which could realize the green synthesis of adipic acid from cyclohexane.
HUANG Binguang,ZHAO Jiajin,FAN Yu et al. The Green Synthesis of Adipic Acid from Cyclohexane catalyzed by Precious Metal Supported Catalysts[J]. Chemical Reaction Engineering and Technology, 2025, 41(6): 676-684.
