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Citation: GONG Cheng-Bin, ZENG Ren-Quan, FU Xiang-Kai, LI Long-Qin, CHEN Jing-Rong. Study on Solid Base Supported on Zirconium Dimethyl Aminoethylphosphonate-phosphate[J]. Chinese Journal of Applied Chemistry, ;2000, 17(3): 264-267. shu

Study on Solid Base Supported on Zirconium Dimethyl Aminoethylphosphonate-phosphate

a.
a. Dalian Institute of Chemical Physical, Chinese Academy Sciences, Dalian;
b.
b. College of Chemistry and Chemical Engineering, Southwest Normal University, Chongqing 400715

Received Date: 25 October 1999
Available Online: 20 March 2000
Fund Project: 国家自然科学基金委和中国石油化学工业总公司石油化学工业科学院联合资助项目(29473144) (29473144)

Some solid bases Zr(HPO₄)_2-x [O₃PCH₂CH₂N(CH₃)₂]_x·H₂O-NaOH were prepared by treating zirconium dimethylaminoethyl phosphonate-phosphate supporter with 5% NaOH solution and characterized by elemental analysis, IR, TG DTG, DTA and BET surface area measurements. The base strengths of the solid bases were of 9.3~15.0, which corresponded to that of solid sodium carbonate. Their base numbers were measured by benzoic acid titration method to be in dependence with x value. The influences of the x value, temperature keeping time in the preparation of the supporter were studied. The solid bases showed high catalytic activity in typical Knoevenagel condensation reaction in high product yields and little side reactions. The solid base catalysts can be reused for 6 to 7 times and easily regenerated.
- zirconium dimethylaminophosphonate-phosphate,
- solid base,
- catalysis,
- Knoe-venagel condensation
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