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Intrinsic kinetics of ammoximation of methyl ethyl ketone catalyzed by TS-1(PDF)

《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

Issue:
2017年03期
Page:
76-81
Research Field:
Publishing date:

Info

Title:
Intrinsic kinetics of ammoximation of methyl ethyl ketone catalyzed by TS-1
Author(s):
SHANG Hongnian1ZHANG Feng1PAN Jiangsheng2CHEN Rizhi1XING Weihong1
1.State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering, Nanjing Tech University,Nanjing 210009,China; 2.Jiangsu Jiayi Power and Heat Co. Ltd.,Changzhou 213200,China
Keywords:
methyl ethyl ketone oxime TS-1 methyl ethyl ketone ammoximation intrinsic kinetics
PACS:
O643.12
DOI:
10.3969/j.issn.1671-7627.2017.03.014
Abstract:
Methyl ethyl ketone oxime(MEKO)is an excellent fine chemical.The ammoximation of methyl ethyl ketone(MEK)to MEKO over titanium silicalites-1(TS-1)is a novel and an environmentally friendly technology.The intrinsic kinetics of the MEK ammoximation reaction over TS-1 to produce MEKO was investigated.As the stirring rate was over 600 r/min and the average particle size of TS-1 catalyst was about 170 nm,both the effects of external diffusion and internal diffusion resistance on the ammoximation reaction could be ignored and the reaction was controlled only by the kinetics of ammoximation,and the reaction orders of MEK,NH3 and H2O2 were found to be 0.807,1.151 and 0.391,respectively.The reaction activation energy was 67.45 kJ/mol and the pre-exponential factor was 9.392×107 L1.349/(mol1.349·min).Results provided the fundamental data for the MEK ammoximation over TS-1 to prepare MEKO.

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Last Update: 2017-05-31