CIESC Journal ›› 2013, Vol. 64 ›› Issue (3): 949-954.DOI: 10.3969/j.issn.0438-1157.2013.03.023

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Green synthesis of monododecylphosphate over MCM-22 molecular sieve modified by calcium

ZHANG Wenfei1, LIANG Jinhua2, LI Ning1, LIU Yanqiu1, REN Xiaoqian1, JIANG Min2   

  1. 1. School of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, China;
    2. School of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210009, Jiangsu, China
  • Received:2012-08-06 Revised:2012-10-17 Online:2013-03-05 Published:2013-03-05
  • Supported by:

    supported by the National Basic Research Program of China(2009CB724701).

钙改性MCM-22分子筛催化剂上单十二烷基磷酸酯的绿色合成

张文飞1, 梁金花2, 李宁1, 刘艳秋1, 任晓乾1, 姜岷2   

  1. 1. 南京工业大学化学化工学院,江苏 南京210009;
    2. 南京工业大学生物与制药工程学院,江苏 南京210009
  • 通讯作者: 任晓乾
  • 作者简介:张文飞(1988—),男,硕士研究生。
  • 基金资助:

    国家重点基础研究发展计划项目(2009CB724701)。

Abstract: Ca/HMCM-22 and CaHMCM-22 zeolite catalysts were prepared by impregnation and ion exchange respectively.The catalysts were characterized by XRD,TPD,FT-IR,and ICP.When CaSO4 loading was less than 6.5%,CaSO4 could be highly dispersed on HMCM-22 zeolite.A few variations in the strength and content of weak acid,and a slightly decrease of the content of strong acid were found in the two catalysts.However,the strength and content of weak and strong base on CaHMCM-22 were more than those on Ca/HMCM-22 after modification.The two catalysts exhibited good catalytic performance for the synthesis of monododecylphosphate by esterification of phosphoric acid with equimolar lauryl alcohol.The catalytic activity over Ca/HMCM-22 zeolite was higher than the catalytic activities of HMCM-22 and Ca/NaMCM-22 zeolite,CaSO4 in synergy with acid sites and base sites of zeolite catalyst accelerated the esterification.The catalytic activity over CaHMCM-22 exchanged 3 times was also better than those of HMCM-22 and CaNaMCM-22 zeolite.Combined with the results of characterization and esterification,the presence of acidic and basic sites promoted effectively the synthesis of monododecylphosphate.

Key words: impregnation, ion exchange, MCM-22 zeolite, monododecylphosphate

关键词: 浸渍, 离子交换, MCM-22分子筛, 单十二烷基磷酸酯

CLC Number: