摘要
我国铁矿资源日益枯竭,其存在贫细杂等难选特质。传统阴离子捕收剂药剂用量大、药剂制度复杂、活性差。为解决这一问题,采用工业废胺经过加工后的表面活性剂(YTDB)作为阳离子捕收剂,对石英和赤铁矿进行了单矿物浮选试验以及矿物吸附机制的研究。结果表明,当十二胺(DDA)作为捕收剂时,在pH=7、捕收剂用量为20 mg/L的条件下,可以得到石英的回收率为78.36%,赤铁矿的回收率为12.57%,此时浮选差异性最大;当YTDB作为捕收剂时,在pH=7、捕收剂用量为15 mg/L的条件下可以得到石英的回收率为91.27%,赤铁矿的回收率为12.67%,此时浮选差异性最大,YTDB在浮选指标上明显优于DDA,并一定程度上节省了药剂用量。通过测试药剂与矿物作用前后的红外光谱、表面张力以及Zeta电位,发现YTDB在石英表面发生了吸附作用。
China's iron ore resources are increasingly depleted,and they have difficult to select characteristics such as poor,fine and miscellaneous.The traditional anionic collector has large dosage,complex reagent system and poor activity.In order to solve this problem,the surfactant processed by industrial waste amine(YTDB)was used as cationic collector to study the single mineral flotation test and mineral adsorption mechanism of quartz and hematite.The results show that when dodecylamine(DDA)is used as collector,under the conditions of pH=7 and collector dosage of 20 mg/L,the recovery rate of quartz is 78.36%,and the recovery rate of hematite is 12.57%.At this time,the flotation difference is the largest.When YTDB is used as collector,under the condition of pH=7 and collector dosage of 15 mg/L,the recovery rate of quartz is 91.27%,and the recovery rate of hematite is 12.67%.At this time,the flotation difference is the largest.YTDB is obviously better than DDA in flotation index,and saves the dosage of reagent to a certain extent.By testing the infrared spectrum,surface tension and Zeta potential before and after the interaction of the agent and the mineral,it is found that YTDB adsorbed on the surface of quartz.
作者
郑业超
赵通林
依爽
马芳源
ZHENG Yechao;ZHAO Tonglin;YI Shuang;MA Fangyuan(School of Mining Engineering,Liaoning University of Science and Technology,Anshan,Liaoning l14000,China)
出处
《矿业研究与开发》
北大核心
2025年第10期251-258,共8页
Mining Research and Development
