世界主要烧绿石资源及选矿技术特点
投稿时间:2014-02-27  修订日期:2014-04-24  点此下载全文
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作者单位E-mail
艾永亮 核工业北京地质研究院 aihua1100@163.com 
范光 核工业北京地质研究院  
中文摘要:介绍了世界主要烧绿石资源现状及分布特征,总结了烧绿石选矿技术特点。全球烧绿石资源非常丰富,但分布极不均衡,主要集中在巴西、加拿大及中部非洲。当前全球仅有Araxa、Catalao、Niobec三座烧绿石矿山运营,Araxa和Catalao为露天开采碳酸盐风化的红土残留矿,Niobec则地下开采原生碱性碳酸盐矿石。虽然矿石类型不同,但选矿流程相似,为脱泥—反浮选除硅酸盐或碳酸盐—脱水—磁选—烧绿石浮选—硫化物浮选—浸出除磷。
中文关键词:烧绿石,选矿技术,Araxa,Catalao,Niobec
 
Resources Status and Mineral Processing of Pyrochlore
Abstract:The resources ststus and mineral processing of pyrochlore were introduced. In the earth the pyrochlore resources is abundent, but distribute disproportionate. Most of them existed in Brazil, Canada and Central Africa countries. And now, only three pyrochlore mines(Araxa, Catalao, Niobec) are on work. Araxa and Catalao are open-pit mines, and Weathered carbonatite red soil are mined and processed. In Niobec,carbonatite ore is mined underground. The minerals processing flowsheet are same to Araxa, even the ore character are difference. The flowsheet is Desliming-Carbonate/Silicateflotation-Dewatering-Pyrochlore flotation- Sulphide flotation-Leaching.
keywords:pyrochlore, mineral processing, Araxa, Catalao, Niobec
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