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Optimization of synthesis of eleostearate maleic anhydride by eleostearate
  
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KeyWord:tung oil  eleostearate maleic anhydride  free anhydride
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CHENG Jiang，YAO Shufeng，TANG Kehua  
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Abstract:
      With eleostearic acid and maleic anhydride as raw materials, the synthesis process of eleostearate maleic anhydride was studied by uniform design and the major effect factors were explored. The results showed that the optimal process conditions were obtained as follows: molar ratio of eleostearic acid to maleic anhydride 1∶?0.3, reaction time 2.8 h, reaction temperature 140?℃. Under these conditions, the content of free anhydride in the product was 0.549%. The significance of the effects of the factors on the free anhydride content decreased in the order: raw material molar ratio, reaction temperature, reaction time. The research could provide scientific basis for developing downstream products of tung oil with eleostearic acid as row material.
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