摘要
研究了以浑浊红球菌为微生物浮选捕收剂时锡石、方解石和石英砂纯矿物的浮选回收率。结果表明,在pH=4、浑浊红球菌浓度1.24 g/L时,3种矿物的回收率分别为82.07%、45.42%和13.66%。通过表面电位和表面张力测定等手段探究了浑浊红球菌捕收剂分子与锡石表面作用机理。并以浑浊红球菌为捕收剂、水玻璃为抑制剂,对实际锡矿进行了开路浮选实验,锡精矿锡品位由3.98%提高到了23.83%。
Rhodococcus opacus(R opacus) was taken as a microbe collector in a flotation experiment to investigate the recoveries of cassiterite, calcite and quartz pure minerals. The results show that, with pulp pH as 4 and R opacus dosage as 1.24 g/L, the recoveries of these three minerals were correspondingly 82.07%, 45.42% and 13.66%. The interaction mechanism between R opacus and cassiterite was investigated by measuring zeta potential and surface tension. Finally, an open-circuit flotation experiment of tin ore was carried out with R opacus as the collector and sodium silicate as the depressant, showing that the grade of tin concentrate was improved from 3.98% to 23.83%.
作者
蓝丽红
马忻狄
郑锡瀚
杨卓
杜慧聪
蓝平
柳春
LAN Lihong;MA Xindi;ZHENG Xihan;YANG Zhuo;DU Huichong;LAN Ping;LIU Chun(School of Chemistry and Chemical Engineering,Guangxi University for Nationalities,Nanning 530006,Guangxi,China;Guangxi Key Laboratory for Polysaccharide Materials and Modifications,Nanning 530006,Guangxi,China;Key Laboratory of Chemical and Biological Transformation Process of Guangxi Higher Education Institutes,Nanning 530006,Guangxi,China;Guangxi Branch of China Institute of Science and Technology Development,Nanning 530023,Guangxi,China)
出处
《矿冶工程》
CAS
北大核心
2023年第1期67-71,共5页
Mining and Metallurgical Engineering
基金
广西生物多糖分离纯化及改性研究平台建设(桂科ZY18076005)。
关键词
锡石
浑浊红球菌
捕收剂
生物选矿
微生物药剂
cassiterite
Rhodococcus opacus(R opacus)
collector
biological beneficiation
microbial collector
