摘要:
作为国家战略型矿物,萤石在很多领域都有应用,对国家的经济建设非常重要.虽然我国的萤石矿储量位居世界前列,但年产量高、出口量大且独立矿床储产比低,这就使得在控制出口量的同时,如何提高伴生萤石矿物的回收率成为了目前急需解决的问题.随着易选的萤石矿日益枯竭,难选的伴生萤石矿受到了越来越多的关注,而由于萤石、重晶石和方解石分离困难,这类矿石也是世界公认的难选伴生萤石矿之一.目前尚缺乏对这类矿石的系统性研究,也没有适用于连续生产的分选方法.近年来对方解石-重晶石-萤石型矿石分选方法的研究主要集中在浮选和重选两个方面.文章从浮游选矿和重力选矿两个方面,对该类矿石的分选方法研究进展进行了综述,为进一步的研究提供参考.
关键词:
-
萤石
/
-
重晶石
/
-
方解石
/
-
浮选
/
-
重选
Abstract:
As a national strategic mineral,fluorite can be used in many fields,and it is important for the country's economic development.The reserves of fluorite in China is larger than most of other countries in the world,but the high yield,the large quantities of export and the low proportion of reserves and yield made the question that how to control the export and improve the recovery rate of associated fluorite minerals became urgent.As the fluorite ore which is easy to purify is increasingly depleted,the fluorite ore which is had to purify has been more and more attention,and because the separation of fluorite,barite and calcite is so hard that this kind of ore has been considered to be one of the ore which is had to purify.There is no systematic study of this kind of ore and also no purification methods suitable to continuous production.In recent years,there were many researches on the purification method of fluorite from calcite and barite,mainly focused on flotation and gravity concentration.This paper summarized the progress in research on purification methods of this kind ore in two aspects of flotation and gravity separation,and provided a reference for further research.
下载: