Journal of Liaoning Petrochemical University
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Catalytic Oxidative Desulfurization of Model Oil over CuWO4
Li Dandong, Liu Tong, Jia Huanhuan, Xirenguli Jiapaer, Zhang Lianzi, Yu Hai, Zhao Rongxiang, Shi Weiwei
Abstract546)      PDF (2410KB)(425)      
Copper tungstate was prepared by direct precipitation method at room temperature. The sample was treated with high temperature calcination and activation with hydrogen peroxide in order to improve the oxidative desulfurization activity. Then the oxidative desulfurization of dibenzothiophene (DBT) from model oil was carried out using the activated CuWO4 as catalyst, hydrogen peroxide as the oxidant, and imidazolium fluoroborate ionic liquid as extracting agent.The reaction conditions,including temperature, amount of catalyst and oxidant, types of extractant and sulfides were also studied.The results indicate the optimized desulfurization conditions of 0.4 mL of hydrogen peroxide, 0.02 g of catalyst, imidazole tetrafluoroborate as the extractant at 70 ℃ for 60 min, and the desulfurization rate can reach 93%. In addition, the desulfurization rate remains above 82% when the catalyst was reused for five times.
2015, 35 (2): 12-16. DOI: 10.3696/j.issn.1672-6952.2015.02.003
Synthesize of Maleic Acid Derivatives and their Gelation Ability
Zhou Zhe, Sun Jianfeng, Yu Haiyang, Yu Fang, Lai Junling, Luo Genxiang
Abstract508)      PDF (1694KB)(282)      
Lowmolecularmass organic gelator (LMOG) Noctadecyl succinic acid was synthesized from succinic anhydride and octadecylamine by ringopen reaction. The structure of gelator was confirmed by 1HNMR and 13CNMR. The gelation ability was inspected by a typical experiment including heatingcooling to form gel and inverting the test tube without deformation of the gel. The results indicate that the Noctadecylcotadecylamine can form the oreticalorganogels in different organic solvents. The selfassemble in the organogel was studied and a preliminary gelation mechanism was proposed.
2014, 34 (5): 1-3,14. DOI: 10.3696/j.issn.1672-6952.2014.05.001