新型捕收剂RA-92在低品位碳酸锰矿选矿中的应用

发布时间：2018-02-09 20:08

本文关键词： 新型捕收剂低品位碳酸盐锰矿选矿回收率　出处：《岩矿测试》2016年03期 　论文类型：期刊论文

【摘要】：微细粒低品位锰矿由于颗粒间的非选择性聚集、浮选药剂用量大、浮选效率低等技术难题而致使其利用困难,造成大量浪费。在品位低于13%的锰矿浮选技术研究中,捕收剂最受关注,前人已研究了多种类型的捕收剂,所得精矿品位在16.9%~18.3%之间,回收率为56%~97%,回收率比较理想,但精矿品位总体不高。本文将新型捕收剂RA-92应用于湖南凤凰—花垣地区低品位碳酸锰矿(锰品位为10.7%)的选矿工艺中,实验研究了磨矿细度、p H值、抑制剂和捕收剂用量对浮选效果的影响,在最佳工艺条件下,精矿品位由原矿的10.7%提升至17.4%,回收率达到80.2%。研究表明RA-92对碳酸锰矿具有良好的捕收性能,浮选工艺相对简单且捕收剂用量少,浮选成本较低,可为此种捕获剂在微细粒低品位碳酸盐锰矿选矿中的应用得到推广。
[Abstract]:Low grade manganese ore with fine particles is difficult to be used because of non-selective aggregation between particles, large amount of flotation reagent and low flotation efficiency, which results in a large amount of waste. In the study of flotation technology of manganese ore with grade less than 13%, The collector received the most attention. Several types of collector have been studied. The concentrate grade is in the range of 16.9% and 18.3%, and the recovery rate is 56% and 97%, and the recovery rate is ideal. But the concentrate grade is not high on the whole. In this paper, the new collector RA-92 is applied to the processing of low grade manganese carbonate ore (manganese grade 10.7) in Fenghuang-Huayuan area, Hunan Province, and the grinding fineness and pH value are studied experimentally. The effect of depressant and collector dosage on flotation effect was studied. Under the optimum technological conditions, the concentrate grade was raised from 10.7% to 17.4, and the recovery rate reached 80.2. The results showed that RA-92 had a good trapping performance on manganese carbonate. The flotation process is relatively simple, the amount of collector is less and the floatation cost is lower, so it can be popularized for the application of this kind of trapping agent in fine grain and low grade carbonate manganese ore processing.
【作者单位】：地质过程与矿产资源国家重点实验室中国地质大学(武汉);中国地质大学(武汉)材料与化学学院;
【基金】：中国地质调查局地质调查项目“湖南凤凰—花垣地区难选碳酸锰矿与紫阳—恩施地区硒资源综合利用研究”(12120113087100)
【分类号】：TD951;TD923.13

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