铜硫化物直接水浆氢还原制备铜粉  

Cu Powder Preparation by Direct Hydrogen Reduction of Cu_2S and CuS Slurries

作　　者：喻克宁[1] 梁焕珍[1] 

机构地区：[1]中国科学院过程工程研究所,北京100080

出　　处：《有色金属》2004年第41期74-76,79,共4页Nonferrous Metals

基　　金：国家自然科学基金资助项目 (5 0 1740 5 0 )

摘　　要：借助SEM和X 射线衍射等 ,研究Cu2 S酸性和碱性水浆高压氢还原过程。结果表明 ,两种体系的氢还原反应都可进行到一定程度 ,但还原机制可能不同。在Cu2 S或CuS的碱性水浆中添加适量ZnO时 ,Cu的转化率可分别达到 92 %和 85 %。The direct hydrogen reduction of Cu 2S in acidic and basic slurries are investi ga ted by the help of SEM and X-ray diffraction. The results show that the reduct io ns proceed to a certain extent in the two systems, but the reduction mechanisms may be probably different. The reduction of Cu sulfides tends to completion whe n proper amount of ZnO is added into the basic Cu 2S or CuS slurry, and the tran sformations of Cu reach to 92% and 85%, respectively.

关 键 词：碱性水 制备 铜粉 转化率 氢还原 直接 硫化物 SEM X-射线衍射 反应 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TF123[金属学及工艺—金属材料]