期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Mechanism and application on sulphidizing flotation of copper oxide with combined collectors 被引量:23
1
作者 Wan-zhong YIN Qian-yu SUN +3 位作者 Dong LI Yuan TANG Ya-feng FU Jin YAO 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第1期178-185,共8页
The effect of sodium butyl xanthate (NaBX) and dodecylamine (DDA) as combined collector on the sulphidizing flotation of copper oxide was investigated by flotation test, fluorescent pyrene probe, zeta potential, and i... The effect of sodium butyl xanthate (NaBX) and dodecylamine (DDA) as combined collector on the sulphidizing flotation of copper oxide was investigated by flotation test, fluorescent pyrene probe, zeta potential, and infrared spectroscopy analyses. The micro-flotation results show that combined use of NaBX+DDA yields better effect than using NaBX at pH 7-11 only, and the optimal molar ratio of NaBX to DDA is 2: 1. The actual ores flotation shows that when the dosage of NaBX+DDA is (100+54) g/t, the copper concentrate grade and recovery are 15.93% and 76.73%, respectively. The fluorescent pyrene probe test demonstrates that the NaBX+DDA can reduce the micelle concentration in the pulp. The zeta potential and the infrared spectroscopy analyses indicate that chemical adsorption, hydrogen-bonding and electrostatic interaction can help to adsorb NaBX+DDA on the surface of malachite. Meantime, copper xanthate and copper-amine complexes may be generated during the adsorption process. 展开更多
关键词 copper oxide combined collector FLOTATION ADSORPTION infrared spectroscopy
下载PDF
Adsorption mechanism of sodium oleate and styryl phosphonic acid on rutile and amphibole surfaces 被引量:4
2
作者 Wei XIAO Ya-xin REN +4 位作者 Juan YANG Pan CAO Jun WANG Wen-qing QIN Guan-zhou QIU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第9期1939-1947,共9页
A reagent combination of sodium oleate(NaOl)and salicyl hydroximic acid was employed as the roughing and scavenging collectors,whereas styryl phosphoric acid(SPA)and octanol were employed as the cleaning collectors.Re... A reagent combination of sodium oleate(NaOl)and salicyl hydroximic acid was employed as the roughing and scavenging collectors,whereas styryl phosphoric acid(SPA)and octanol were employed as the cleaning collectors.Results of bench-scale flotation demonstrate that the dosage of SPA can be reduced by about 80%,and that a better flotation index can be obtained using the proposed reagent system.The results of adsorption amount and contact angle measurements indicate that the rutile surface adsorbed not only a large amount of residual NaOl but also SPA and a small amount of NaOl remained on the amphibole surface in strong acidic solution.The hydrophobic difference between rutile and amphibole surfaces was therefore amplified in cleaning,and their further separation became much easier consequently. 展开更多
关键词 RUTILE amphibole flotation separation combined collector synergistic adsorption mechanism
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部