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化学工业与工程
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��ѧ��ҵ�빤�� 2009, Vol. 26 Issue (3) :212-215    DOI:
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Synthesis of DBP Catalyzed by Solid Acid
CHEN Yu-cheng~(1,2),ZHOU Xue-qin~2,LIU Dong-zhi~2(1.College of Biological and Chemical Engineering,Fuqing Branch of Fujian Normal University,Fuqing 350300,Fujian Province,China;2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)
(1,2),ZHOU Xue-qin~2,LIU Dong-zhi~2(1.College of Biological and Chemical Engineering,Fuqing Branch of Fujian Normal University,Fuqing 350300,Fujian Province,China;2.School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China
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ժҪ �Ա�����������Ϊԭ��,�����Ƶ�SO42-/SiO2��SO42-/Fe2O3��SO42-/SnO2��������ϵΪ�߻���,�߻��ϳ��ڱ������������(DBP),�ֱ𿼲������߻��������ࡢ������߻���������������Ħ���Ⱥͷ�Ӧʱ������ضԺϳ�DBP���ʵ�Ӱ�졣����������,����SO42-/SnO2�߻����߻����Ըߡ��ڱ���0.1 mol(14.8 g)��������߻���m(SO42-/SnO2)/n(����)Ϊ16(g/mol)������Ħ����2.5����ˮ�����ױ�200[mL/mol(����)]����Ӧʱ��4.0 h��������,����ʴ�94.0%����,���������ɶ���ظ�ʹ�á������״������롢�Ҳ�Ʒɫ��dz���ŵ�,�������洫ͳŨ�������߻���Ӧ����DBP�ĺϳɡ�
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Abstract�� DBP was prepared by esterification of n-butanol and phthalic anhydride catalyzed by the self-made catalyst of SO~(2-)_4/SiO_2,SO~(2-)_4/Fe_2O_3,SO~(2-)_4/SnO_2,solid iron series strong acid.The effects,such as the sort of solid acid,the amounts of catalyst,the ratio of butanol to phthalic anhydride,the reaction time and so on,on the esterification were discussed.The optimal reaction conditions are obtained.The results showed that SO_4/SnO_2 has high catalytic activity.When phthalic anhydride is 0.1 mol(14.8 g),the solid acid catalyst with m(SO~(2-)_4)/n(phthalic anhydride) is 16 g/mol,the ratio of butanol to phthalic anhydride is 2.5,xylene is 200 mL(per molar phthalic anhydride),reaction time is 4 h,the yield of product is more than 94.0%.The catalyst has a long life span and can be used many times.The product is easily separated and purified with better color.The catalyst will be a promising replacement of H_2SO_4 in the synthesis of DBP.
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Received 2009-05-15; published 2009-05-15
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�����;��ѩ��;����־;.������߻��ϳ��ڱ���������������о�[J].  ��ѧ��ҵ�빤��, 2009,26(3): 212-215
CHEN Yu-cheng~.Synthesis of DBP Catalyzed by Solid Acid[J].  Chemcial Industry and Engineering, 2009,26(3): 212-215
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