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| Thesis Name： |
Effect of alkali metal catalytic additives on p-Xylene liquid |
| Usage： |
chemistry |
| Keyword： |
PTA; catalytic oxidation; alkali metal catalytic additive |
| Remarks： |
Abstract:
The catalytic activities of K+, Na+ alkali metal ions additives in p-xylene liquid phase oxidation system were verified. Multi groups of kinetics experiments were carried out on the catalytic effects of the alkali metal ions under different adding mass fraction. The effect of K+, Na+ adding amount on the system main reaction and combustion side reaction, the effects of 4-CBA content in TA solid product were investigated. The effect principles of alkali metal ions additives on PX oxidation process were obtained. The experiments showed that the adding amount of alkali metal ions had different effects on the degree of activity. The main reaction can be accelerated efficiently as the adding mass fraction of K+ was (30～100)×10-6.The catalytic effects were not obviously or even inhibited when the adding amount was so big. Compared with K+ ,the catalytic activities of Na+ on the main reaction was much lower.
Source:Polyester Industry
Author:LUO Xiao- fang1, CHENG You- wei1, SONG Jing- zhen2 , LI xi1
(1.Chemical Engineering Department of Zhejiang University, Hangzhou 310027,China;2.Dalian Synthetic Fiber Research Institute Co.Ltd., Dalian 116021,China) |
| Original file： |
No File
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Promulgator Detail |
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| Country: |
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| City: |
Dalian |
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