122-62-3Relevant articles and documents
Preparation of nano-SO4 2- /TiO2 catalyst and its application in esterification of sebacic acid with 2-ethyl hexanol
Ji, Xianbing,Chen, Yinxia,Wang, Xiaobo,Liu, Weimin
, p. 222 - 225 (2011)
A pure anatase phase nano-SO 4 2- /TiO2 catalysts were synthesized and their catalytic activities were tested. Nano-SO 4 2- /TiO2 shows high activity and effective re-usable when used as basic catalysts for the synthesis of dioctyl sebacate.
Micro-flow nanocatalysis: synergic effect of TfOH@SPIONs and micro-flow technology as an efficient and robust catalytic system for the synthesis of plasticizers
Tashi, Maryam,Shafiee, Behnaz,Sakamaki, Yoshie,Hu, Ji-Yun,Heidrick, Zachary,Khosropour, Ahmad R.,Beyzavi, M. Hassan
, p. 37835 - 37840 (2018/11/26)
The combination of continuous flow technology with immobilizing of only 0.13?mol% of triflic acid (TfOH) on silica-encapsulated superparamagnetic iron oxide nanoparticles (SPIONs) under solvent-free conditions successfully provided a powerful, efficient, and eco-friendly route for the synthesis of plasticizers. The turnover frequency value in micro-flow conditions varied in the range of 948.7 to 7384.6 h?1 compared to 403.8 to 3099 h?1 for in-flask. This technique works efficiently, encouraging future applications of micro-flow nano-catalysis in green chemistry.
Nano-SO42-/TiO2catalyzed eco-friendly esterification of dicarboxylic acids
Ji, Xianbing,Chen, Yinxia,Shen, Zuoyuan
, p. 5769 - 5772 (2014/12/11)
Nano-SO42-/TiO2 was prepared by wet impregnation method. The structure and properties of the prepared nano-SO42-/TiO2catalyst was characterized by XRD, SEM, TEM and BET analysis. The catalytic activities of the catalysts were tested by the esterification of sebacic acid with 2-ethyl hexanol and a series of other dicarboxylic acid. The influence factors on the reaction, such as the catalyst calcination temperature, reaction temperature/time and the molar ratio of acid to alcohol were extensively explored. Nano-SO42-/TiO2prepared exhibited much higher catalytic activity in esterification reactions. By applying the optimized reaction condition, i.e. 160 C, 2 h, 5 wt % nano-SO42-/TiO2with a 1:3 molar ratio of sebacic acid to 2-ethyl hexanol, higher than 99 % isolated of the desired ester could be obtained.