A Highly Efficient and Selective Water-Soluble Bimetallic Catalyst for Hydrogenation of Chloronitrobenzene to Chloroaniline

作者：Zhou Yafen^*; Yang Wenjuan; Zhou Limei; Wang Manman; Ma Xiaoyan

来源：China Petroleum Processing and Petrochemical Technology, 2015, 17(2): 26-31.

• water-soluble bimetallic catalyst
• hydrogenation
• chloronitrobenzene
• chloroaniline

Selective hydrogenation of chloronitrobenzene (CNB) to chloroaniline (CAN) catalyzed by water-soluble Ru/Pt bimetallic catalyst in an aqueous-organic biphasic system was studied. It was found that the catalytic activity increased obviously due to the addition of platinum. RU/Pt bimetallic catalysts exhibited a strong synergistic effect when the molar ratio of Pt was in the range of 5%-80%. Under the mild conditions including a temperature of 25 degrees C, a hydrogen pressure of 1.0 MPa and a Pt molar ratio of 20%, the conversion of p-chloronitrobenzene (p-CNB) reached 99.9%, with the selectivity to p-chloroaniline (p-CAN) equating to 99.4%. The Ru/Pt catalyst also showed high activity and selectivity for the hydrogenation of other chloro- and dichloro-nitrobenzenes with different substituted positions. In addition, the catalyst can be recycled five times without significant loss of activity.

• 出版日期2015-6
• 单位西华师范大学; 成都理工大学