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投稿时间：2015-08-06 修订日期：2015-08-11
投稿时间：2015-08-06 修订日期：2015-08-11
中文摘要: 根据新疆某硫化铜镍矿矿石的工艺矿物学特性,进行了详细的选矿试验研究,采用一粗一精两扫、中矿顺序返回的铜镍混合浮选流程,使用碳酸钠做pH调整剂,六偏磷酸钠做分散剂,羧甲基纤维素做抑制剂,混合黄药做捕收剂,处理该矿石,得到了混合精矿含镍10.89%、含铜4.27%,镍回收率81.61%、铜回收率85.03%的指标,氧化镁含量低于6.8%,产品质量符合冶炼要求。对六偏磷酸钠和羧甲基纤维素在硫化铜镍矿浮选中的作用机理进行了分析,结果表明六偏磷酸钠能分散蛇纹石与硫化矿物,降低蛇纹石对硫化矿物浮选的影响,而羧甲基纤维素能抑制含镁硅酸盐矿物的上浮,实现硫化矿物与含镁硅酸盐脉石的浮选分离。因此,在含有多种镁硅酸盐脉石矿物的硫化铜镍矿中同时使用六偏磷酸钠和羧甲基纤维素是该类矿石高效利用的关键。
Abstract:The detailed experiment researches of a nickel-copper sulfide ore were conducted according to the mineralogy characteristics of the ore. The sodium carbonate was used as pH modifer, sodium hexametaphosphate and carboxymethyl cellulose were used as modifer, mixed xanthate was used as collector in the experiment. A concentrate with nickel grade of 10.89%, copper grade of 4.27% and nickel recovery 81.61%, copper recovery 85.03% was achieved adopt the process with one rough, one concentration and two scavenging. The content of magnesium oxide in the product lower than 6.8%,which comply with the requirement of smelting. The role of sodium hexametaphosphate and carboxymethyl cellulose in the copper sulfide nickel ore flotation was analyzed, the results show that sodium hexametaphosphate can disperse the serpentine and sulfide minerals, reduce the adverse effect of serpentine mineral on sulfide mineral flotation, and carboxymethyl cellulose can depress the flotation of magnesium silicate gangue mineral and realize the flotation separation of sulfide minerals from gangue minerals.
文章编号： 中图分类号：TD952 文献标志码：
基金项目:国家自然科学基金资助项目(51404109)；江西省科技厅自然科学基金(20142BAB216021); 江西省教育厅(GJJ14425)；江西理工大学博士(jxxjbs13020)
| 作者 | 单位 | |
| 冯博* | 江西理工大学 江西省矿业工程重点实验室 | fengbo319@163.com |
| Author Name | Affiliation | |
| Feng bo | Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, | fengbo319@163.com |
引用文本：
冯博.新疆某难选硫化铜镍矿选矿试验研究[J].有色金属工程,2016,6(1):.
冯博.新疆某难选硫化铜镍矿选矿试验研究[J].有色金属工程,2016,6(1):.
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