专业从事离子液体的合成、应用及其相关技术的研究工作----Lanzhou Greenchem ILs/青岛奥立科

• One-pot synthesis of silica gel confined functional ionic liquids: effective catalysts for deoximation under mild conditions
• 更新时间：2014-04-06；信息类型：SCI论文
• Several acid-functional ionic liquids were physically confined into the silica gel through a sol–gel process and used as effective catalysts for deoximation reactions, which proceeded under ambient temperatures without addition of any co-catalysts or oxidizing and reducing agents.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/35.html

• Interactions between heavy metals and clay matrix in fluid catalytic cracking catalysts
• 更新时间：2014-04-06；信息类型：SCI论文
• The interactions between heavy metals (vanadium and nickel) and kaolin had been investigated by X-ray diffraction and MAT test. In the process of phase transformation of kaolin containing 1–5% vanadium, vanadium-mullite phase emerged surprisingly at 660–700 ◦C. The unit cell size of the mullite was found to increase with increment of vanadium content. As compared with hydro-kaolin, acid-modified kaolin(AMK) and caustic-modified kaolin (CMK) reacted with vanadium to form much more mullite; CMK could even be reacted with nickel to form a rather stable NiAl10O16 compound, and this compound protected zeolite in fluid catalytic cracking catalyst effectively. The catalyst containing AMK had greaterMAT activity retention than that of the contrastive catalyst with hydro-kaolin in the identical level of heavy metal contamination.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/34.html

• Ionic Liquid as an Efficient Promoting Medium for Fixation of CO2: Clean Synthesis of r-Methylene Cyclic Carbonates from CO2 and Propargyl Alcohols Catalyzed by Metal Salts under Mild Conditions
• 更新时间：2014-04-06；信息类型：SCI论文
• Reactions of propargylic alcohols with CO2 in a [BMIm][PhSO3]/CuCl catalytic system to produce the corresponding R-methylene cyclic carbonates were conducted with high yields. Mild reaction conditions, enhanced rates, improved yields, and recyclable ionic liquid catalyst systems are the remarkable features exhibited in this process. Furthermore, the use of large amounts of tertiary amines as well as nitrogen-containing organic solvent as employed in previously studies was avoided.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/33.html

• A novel task-specific ionic liquid for Beckmann rearrangement: a simple and effective way for product separation
• 更新时间：2014-04-06；信息类型：SCI论文
• Under mild conditions and without any additional organic solvents, Beckmann rearrangement of ketoximes was performed in a novel task-specific ionic liquid consisting sulfonyl chloride. Especially for the conversion of cyclohexanone oxime to e-caprolactam, e-caprolactam has good solubility in water while the task-specific ionic liquid is immiscible with water, therefore, e-caprolactam could be easily separated from the reaction system by water extraction.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/31.html

• Esterification of aliphatic acids with olefin promoted by Brønsted acidic ionic liquids
• 更新时间：2014-04-06；信息类型：SCI论文
• Addition reactions of aliphatic acids with olefins to give corresponding esters have been investigated using SO3H-functionalized ionic liquids as dual catalyst–solvent. The isolation of the desired products could be achieved via simple decantation and ionic liquids could be reused continuously after dried in vacuum (5–12 mmHg) at ca. 80 ◦C.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/30.html

• Application of Functional Ionic Liquids Possessing Two Adjacent Acid Sites for Acetalization of Aldehydes
• 更新时间：2014-04-06；信息类型：SCI论文
• Several acid functional ionic liquids, in which cations possess two adjacent acid sites, were synthesized and used for the acetalization of aldehydes with good catalytic performance under mild reaction conditions.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/29.html

• Effect of ZSM-5 on the aromatization performance in cracking catalyst
• 更新时间：2014-04-06；信息类型：SCI论文
• Cracking of FCC naphtha has been investigated on the model catalysts containing ZSM-5 (Si/Al2 = 50, 500), Zn-ZSM-5 (Si/Al2 = 50) and USY. The presence of ZSM-5 and USY causes a tremendous decrease in olefins of gasoline fraction, leading to an enrichment of the aromatics in liquid product. It is evidently that aromatics are generated from lower olefins. The property of lower silica-to-alumina ratio of ZSM-5 and Zn modification enhance the aromatization process for higher cracking reactivity and dehydrogenation. The result of evaluation in confined fluid bed apparatus (CFBA) with the mixture of VGO and VTB as feed further confirms the aromatics generation in cracking reaction stimulated by ZSM-5 additive over base catalysts with different hydrogen transfer activity. Based on these results, relations between scission and aromatization in FCC catalyst containing ZSM-5 zeolite could be proposed. The suggested reaction path could better explain the reasons that effectiveness of ZSM-5 additive to lighter olefins is more profound in base catalyst of low hydrogen transfer activity and why so many researchers had not observed the aromatics generation motivated by ZSM-5 additive in catalytic cracking reaction.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/28.html

• Surface modification of zeolite Y and mechanism for reducing naphtha olefin formation in catalytic cracking reaction
• 更新时间：2014-04-06；信息类型：SCI论文
• After modifications of rare earth and phosphorus, the acidity density and the strength in the pores of zeolite Y (PREUSY) are improved effectively; the surface acidity is suitably reduced and weakened owing to the interaction of rare earth cation and phosphate anion. NH3-TPD analysis showed that the acid distribution of the modified zeolite is more concentrated on the range of intermediate and strong acidity. This kind of modification can direct more hydrocarbons to enter into the pores to be converted and remarkably reduces the possibility of naphtha olefins forming through a surface cracking reaction. In addition, because naphtha olefin reduction does not completely depend on olefin saturation through secondary hydrogen transfer reaction, this kind of reaction mode can decrease the excessive cracking of mediate distillate and can improve the diesel oil yield (LCO) effectively. Some reaction pathways were proposed.
• 链接地址：http://www.ionike.com/download/article/2014-04-06/27.html

• One-step C=N, C=O bonds cleavage and C=O, C=N bonds formation over supported ionic liquid in water
• 更新时间：2014-04-05；信息类型：SCI论文
• At ambient reaction temperature, the silica gel confined ionic liquid catalysts were perfectly combined with water as an effective catalytic system for simultaneous C@N and C@O bonds transformation with a TONs exceeding 300molmol
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• 链接地址：http://www.ionike.com/download/article/2014-04-05/26.html

• Development of ionic liquids as green reaction media and catalysts
• 更新时间：2014-04-05；信息类型：SCI论文
• A brief review of the work carried out at Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences for development of ionic liquid as green reaction media and catalysts is presented. This includes the processes of ionic liquid to be used as catalyst, reaction media, development of functional ionic liquid and methods for synthesis of immobilized ionic liquid. In the end, some prospects for development of ionic liquid are also addressed.
• 链接地址：http://www.ionike.com/download/article/2014-04-05/25.html