mso - fareast - language: zh - cn; mso - fareast - language: zh - cn; mso - fareast - language: zh - cn; mso - fareast - language: zh - cn; mso - fareast - language: zh - cn;以优化为目的，研究了不同操作参数如反应物摩尔比、催化剂用量和操作温度对反应的影响。该工艺的最佳工艺参数为1:。2molar ratio of Phthalic anhydride to n-butanol, catalyst concentration of 6%(by weight) of reaction mixture and 130-180 degrees C reaction temperature. Maximum conversion levels of about 89% have been obtained in 1.5h of reaction time under these optimized conditions.