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Chemcial Industry and Engineering 2007, Vol. 24 Issue (6) :513-516    DOI:
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Purification Process of Terephthalic Acid
XU Shi-chang,LUO Qi-ming,LIU Hui-wu,FAN Zhen-lu,Wang Ji-xiao(Institute of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)
(Institute of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

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Abstract New methods for purification of crude terephthalic acid(CTA) were studied.The proposed purification strategies were adsorption,dissolving and precipitating process.The tested adsorbents included polyurethane,weak acid cation exchange resin as well as their chemical modified substances.Sodium sulfite solution was used as dissolving reagent and sulphur dioxide was used as precipitant.The effects of operating parameters on the purity of purified terephthalic acid(PTA) were discussed.
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Received 2007-11-15; published 2007-11-15
Cite this article:   
XU Shi-chang,LUO Qi-ming,LIU Hui-wu,FAN Zhen-lu,Wang Ji-xiao.Purification Process of Terephthalic Acid[J]  Chemcial Industry and Engineering, 2007,V24(6): 513-516
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