(1. 江苏技术师范学院 化学化工学院，常州 213001；
2. 北京矿冶研究总院 有色冶金研究所，北京 100044)
摘 要:
关键字: 超细铜粉；超声场；矿浆电解
slurry electrolysis under ultrasonic field
（1. School of Chemical Engineering, Jiangsu Teacher’s University of Technology, Changzhou 213001, China;
2. Institute of Nonferrous Metallurgy, Beijing General Research Institute of Mining and Metallurgy,
Beijing 100044, China）
Abstract:Using copper concentrate as raw material, ultrafine copper powder by using slurry electrolysis with average size of less than 10 μm was gained in the slurry electrolysis cell under ultrasonic field and mechanical activation pretreatment. The basic principle of using slurry electrolysis to prepare ultrafine copper powder was briefly analyzed, and the influence of current density and ultrasonic on the size and shape of ultrafine copper powder were studied. The results show that high current density is propitious to the forming of ultrafine copper powder, the particle size of copper powder decreases and the specific surface area increases with increasing current density. Compared with the non-ultrasonic process, the size of copper powder produced by slurry electrolysis under ultrasonic field decreases, and the specific surface area increases. The particle size of copper powder decreases more while the specific surface area increases more with prolonging ultrasonic treating time.
Key words: ultrafine copper powder; ultrasonic field; slurry electrolysis
