摘要
The flotation process for calcite, diaspore and pyrite using 1,2,3-benzenetrioxylacetic acid(BTAA) as a depressant has been studied. The results showed that, when sodium oleate, dodecylamine and butyl xanthate are used as the collectors, BTAA exhibits a good depressing ability to the three minerals in the order: calcite>diaspore>pyrite. The depressing ability of BTAA was improved by increasing pH value of the medium and BTAA concentration. When the collector concentration was 0 1 mmol/L and the concentration of BTAA was up to 0 7 mmol/L, the recovery of calcite, diaspore and pyrite was 3%, 12% and 21%, respectively. The results were discussed in ferms of the electronegativity of BTAA, specific exponent of flotation agent and HLB value of BTAA molecule.
The flotation process for calcite, diaspore and pyrite using 1,2,3-benzenetrioxylacetic acid(BTAA) as a depressant has been studied. The results showed that, when sodium oleate, dodecylamine and butyl xanthate are used as the collectors, BTAA exhibits a good depressing ability to the three minerals in the order: calcite>diaspore>pyrite. The depressing ability of BTAA was improved by increasing pH value of the medium and BTAA concentration. When the collector concentration was 0 1 mmol/L and the concentration of BTAA was up to 0 7 mmol/L, the recovery of calcite, diaspore and pyrite was 3%, 12% and 21%, respectively. The results were discussed in ferms of the electronegativity of BTAA, specific exponent of flotation agent and HLB value of BTAA molecule.
出处
《应用化学》
CAS
CSCD
北大核心
2002年第1期82-84,共3页
Chinese Journal of Applied Chemistry
基金
国家重点基础研究发展规划项目 ( G19990 6 490 1-1)
