高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (10): 1939.

• 研究论文 • 上一篇    下一篇

温控相分离催化的高碳烯烃氢甲酰化反应研究

吴小伟, 王艳华, 程昉, 金子林   

  1. 大连理工大学精细化工国家重点实验室, 大连 116012
  • 收稿日期:2001-09-06 出版日期:2002-10-24 发布日期:2002-10-24
  • 通讯作者: 王艳华(1970年出生),女,博士,讲师,从事均相催化研究.E-mail:yhuawang@online.ln.cn E-mail:yhuawang@online.ln.cn
  • 基金资助:

    国家自然科学基金(批准号:29906001);中国石油化工集团公司石油化工科学研究院资助

Hydroformylation of Higher Olefins Catalyzed by Thermoregulated Phase-separation

WU Xiao-Wei, WANG Yan-Hua, CHENG Fang, JIN Zi-Lin   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China
  • Received:2001-09-06 Online:2002-10-24 Published:2002-10-24

PDF (PC)

被引次数

46

摘要： 考察了非离子表面活性膦配体P[p-C6H4O(CH2CH2O)nH]3(PETPP,n=6～12,N=3n)在有机溶剂中的溶解度-温度关系,发现其在甲苯中具有临界溶解温度(CST)现象.基于PETPP在甲苯中低温分相、高温互溶的CST特性,提出了温控相分离催化的新概念.并将其应用于癸烯氢甲酰化反应,转化率及醛收率分别达到98.7%和96.0%.催化剂循环使用10次,活性基本保持不变.

关键词: 温控相分离催化, 氢甲酰化反应, 临界溶解温度, 非离子表面活性膦配体, 高碳烯烃

Abstract: The solubility of nonionic tension-active phosphine ligand P[p-C6H4O(CH2CH2O)nH]3(PETPP, n=6-12, N=3n) in different solvents was investigated. It was found that PETPP(N=18-36) possesses a distinct critical solution temperature(CST) in toluene. A novel concept(Thermoregulated Phase-separable Catalysis, TPSC) based on CST of PETPP for separating a catalyst from the reaction mixture is presented. TPSC system involves only the organic phase, while no water was added. At room temperature(tCST, the catalyst is soluble in organic solvent. At the reaction temperature(t>CST), the reaction proceeds homogeneously. After the completion of the reaction, on cooling to room temperature(t2)/V(CO)=1/1], the conversion of 1-decene and yield of aldehyde reached up to 98 6% and 96 0%, respectively. After recycling use of the catalyst for 10 times, the conversion of 1-decene was still more than 94.9%.

Key words: Thermoregulated phase separation catalysis, Hydroformylation, Critical solution temperature, Nonionic tension-active phosphine ligand, Higher olefins

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