caa a22 4500 463253795 CHVBK 20180405153348.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10562-007-9131-8 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9131-8 Friedel-Crafts acylation of anisole and toluene with acetic anhydride over nano-sized Beta zeolites [Elektronische Daten] [Xiangfei Ji, Zhangfeng Qin, Mei Dong, Guofu Wang, Tao Dou, Jianguo Wang] Nano-sized Beta zeolites, with a crystal size of 80-100nm, were synthesized via surface wet method. The nano-sized HBeta zeolites exhibit much higher activity and stability in the Friedel-Crafts acylation of anisole and toluene with acetic anhydride than the conventional zeolites of large particle size. The small crystal size of nano-sized zeolites may bring on more accessible active sites and then enhance the catalytic activity. The exposed pore openings in nano-sized zeolites allow a fast desorption of heavy products from the catalyst and can then reduce the occupancy of active sites by the adsorption of products; this can then alleviate the catalyst deactivation and improve the catalyst stability. Springer Science+Business Media, LLC, 2007 nano-size nationallicence Beta zeolites nationallicence acylation nationallicence anisole nationallicence toluene nationallicence acetic anhydride nationallicence Ji Xiangfei State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut Qin Zhangfeng State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut Dong Mei State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut Wang Guofu State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut Dou Tao CNPC Key Laboratory of Catalysis, University of Petroleum, Fuxue Road, Changping, 102249, Beijing, PR China aut Wang Jianguo State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut Catalysis Letters Springer US; http://www.springer-ny.com 117/3-4(2007-09-01), 171-176 1011-372X 117:3-4<171 2007 117 10562 https://doi.org/10.1007/s10562-007-9131-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9131-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ji Xiangfei State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut NATIONALLICENCE 700 1- Qin Zhangfeng State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut NATIONALLICENCE 700 1- Dong Mei State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut NATIONALLICENCE 700 1- Wang Guofu State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut NATIONALLICENCE 700 1- Dou Tao CNPC Key Laboratory of Catalysis, University of Petroleum, Fuxue Road, Changping, 102249, Beijing, PR China aut NATIONALLICENCE 700 1- Wang Jianguo State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, P.O. Box 165, 030001, Taiyuan, Shanxi, PR China aut NATIONALLICENCE 773 0- Catalysis Letters Springer US; http://www.springer-ny.com 117/3-4(2007-09-01), 171-176 1011-372X 117:3-4<171 2007 117 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer