| 介孔钯碳催化液相加氢制备4,4′-二氨基二苯乙烯-2,2′-二磺酸酸 |
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| 引用本文： | 刘明,李明时,鲁墨弘.介孔钯碳催化液相加氢制备4,4′-二氨基二苯乙烯-2,2′-二磺酸酸[J].精细石油化工,2012,29(5):21-26. |
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| 作者姓名： | 刘明 李明时 鲁墨弘 |
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| 作者单位： | 常州大学石油化工学院,江苏常州,213164 |
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| 基金项目： | 国家自然科学基金，化工资源有效利用国家重点实验室，常州市应用基础研究计划 |
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| 摘 要： | 以介孔碳负载钯(Pd/MC)为催化剂,研究4,4′-二硝基二苯乙烯-2,2′-二磺酸(DNS酸)液相催化加氢制备4,4′-二氨基二苯乙烯-2,2′-二磺酸(DSD酸)反应工艺。结果表明,在蒸馏水为溶剂,催化剂活性组分的负载量为5%,催化剂为原料质量的0.2%,原料质量浓度为175g/L,温度为60℃,压力为1MPa条件下,DNS酸的转化率达100%,DSD酸的纯度为99.46%,收率可达98%以上。
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| 关 键 词： | 催化加氢 介孔碳钯催化剂 4 4′-二硝基二苯乙烯-2 2′-二磺酸 4 4′-二氨基二苯乙烯-2 2′-二磺酸 |
CATALYTIC HYDROGENATION OF DNS ACID TO DSD ACID OVER MESOPOROUS CARBON SUPPORTED PALLADIUM IN LIQUID PHASE |
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| Liu Ming
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Li Mingshi
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Lu Mohong.CATALYTIC HYDROGENATION OF DNS ACID TO DSD ACID OVER MESOPOROUS CARBON SUPPORTED PALLADIUM IN LIQUID PHASE[J].Speciality Petrochemicals,2012,29(5):21-26. |
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| Authors: | Liu Ming Li Mingshi Lu Mohong |
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| Affiliation: | (Department of Petrochemical Engineering,Changzhou University,Changzhou 213164,Jiangsu,China) |
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| Abstract: | The process that preparing 4,4′-diaminostilbene-2,2′-disulfonic acid(DSD acid) via catalytic hydrogenation of 4,4′-dinitrostilbene-2,2′-disulfonic acid(DNS acid) in liquid-phase with palladium-mesoporous carbon(Pd/MC) as catalyst was studied.The results showed that the optimal reaction conditions were as follows by using distilled water as solvent: the charge amount of Pd/MC catalyst was 5%,mass ratio of catalyst to raw material was 0.2%,concentration of raw material was 175 g/L,the reaction temperature was 60 ℃ and the hydrogen pressure was 1 MPa.Under these conditions,the conversion of DNS-Na and the selectivity of DSD were 100% and 99.46% respectively,the yield of DSD acid could be above 98%. |
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| Keywords: | catalytic hydrogenation mesocarbon palladium catalyst 4 4′-dinitrostilbene-2 2′-disulfonic acid 4 4′-diaminostilbene-2 2′-disulfonic acid |
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