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黄金科学技术 ›› 2018, Vol. 26 ›› Issue (5): 622-628.doi: 10.11872/j.issn.1005-2518.2018.05.622

• • 上一篇    

青海省独立型岩金矿选冶技术现状和研究进展

明平田1,2(),蒋光山3   

  1. 1 青海省第六地质矿产勘查院,青海 格尔木 816000
    2 青海省金矿资源开发工程技术研究中心,青海 都兰 816100
    3 青海省生产力促进中心有限公司,青海 西宁 810000
  • 收稿日期:2018-05-31 修回日期:2018-09-11 出版日期:2018-10-20 发布日期:2018-10-31
  • 作者简介:明平田(1977-),男,陕西山阳人,高级工程师,从事金矿选冶研究和生产技术管理工作。
  • 基金资助:
    青海省创新平台建设项目“青海省金矿资源开发工程技术研究中心(2016-GX-G02);青海省海西州科技支撑计划项目“红旗沟—深水潭蚀变岩型难选金矿闪速浮选工艺可行性研究(2017-103)

Present Situation and Research Progress of Independent Rock Gold Mine in Qinghai Province

Pingtian MING1,2(),Guangshan JIANG3   

  1. 1 Qinghai 6th Institute of Geology and Mineral Exploration,Golmud 816000,Qinghai,China
    2 Qinghai Engineering Research Center for Gold Mineral Resource Development,Dulan 816100,Qinghai,China
    3 Qinghai Productivity Promotion Center Co.,Ltd.,Xining 810000,Qinghai,China
  • Received:2018-05-31 Revised:2018-09-11 Online:2018-10-20 Published:2018-10-31

摘要:

青海省地域辽阔,矿产资源丰富。近10年来,金矿地质找矿取得重大突破,在东昆仑等区域发现青海省的“金腰带”,促进了青海省黄金产业的发展。为了进一步实现青海省金矿资源的高效、综合开发利用,对青海省黄金行业矿产资源信息和各黄金生产企业状况进行了收集、整理,并查阅了大量文献资料,对青海省岩金矿产资源的分布、特点、金资源量、已开发的岩金矿石类型、选冶工艺、生产指标和研发平台等有了系统了解。重点介绍了青海省难处理金矿浮选、浮选尾矿环保提金、金精矿生物预氧化和中温中压预氧化的最新研究成果。指出了青海省岩金矿开发研究和产业发展的方向,即加强工艺矿物学研究、选矿厂流程考察诊断和绿色矿山建设,从而实现矿产资源的综合、高效、循环、节约利用以及矿业开发与生态文明建设协调发展。

关键词: 金矿资源, 选冶工艺, 浮选, 环保提金, 中温中压预氧化, 青海省

Abstract:

Qinghai Province has a vast territory and rich mineral resources.Great breakthroughs have been made in gold mine geological prospecting over the last decade.The “gold belt” of Qinghai Province has been found in east Kunlun and other areas,which has promoted the development of the gold industry in Qinghai Province.In order to further implement the comprehensive,efficient,circular and economical utilization of mineral resources in Qinghai Province,collected and sorted out information of the gold industry mineral resources and the production status of major gold enterprises,also consulted a large number of literature materials,so that understand the distribution,characteristics,amount of gold resources,types of developed rock gold mines, flotation-metallurgical process,production index and research and development platform of rock gold mineral resources in Qinghai Province.This paper mainly introduce the latest research results of the refractory gold mines flotation,flotation tailings environmental gold extraction,biological pre-oxidation and medium temperature medium voltage pre-oxidation of gold concentrate in Qinghai Province.At the same time,the direction of the development of research and industry development was proposed,that is strengthen the study of technological mineralogy,the process investigation and diagnosis of concentration plant,the construction of green mines and so achieve comprehensive,efficient,circular and economical utilization of mineral resources,as well as coordinated development of mining development and ecological civilization .

Key words: gold mineral resources, flotation-metallurgical process, flotation, environmentally leaching gold, medium temperature and pressure pre-oxidation, Qinghai Province

中图分类号: 

  • TD982

表1

青海省独立型岩金矿产资源选冶生产指标"

行政

区域

成矿带(区) 矿床名称 矿石类型

矿石处理

难易程度

选冶工艺

回收率

/%

国土资源部要求的选(冶)回收率/%
都兰县 柴南缘 黄龙沟、水闸东沟、淡水沟、岩金沟 高砷高碳低硫微细粒—超微细粒蚀变岩型金矿石 [5] 极难处理

浮选

浮选尾矿环保提金

81.5

50±1.5

(70)
都兰县 东昆仑南坡 果洛龙洼

微细粒石英脉硫化物金

矿石 [6]

难处理

浮选

金精矿一段焙烧+氰化浸出

91.3

92.0

(70)
大柴旦 柴北缘 青龙山、金龙沟 高砷高碳高硫微细粒蚀变岩型金矿石 难处理

浮选

金精矿两段焙烧+氰化浸出

浮选尾矿氰化浸出

87.0

91.7

48.0

(70)
门源县 北祁连 松树南沟 微细粒蚀变岩花岗闪长斑岩、细碧岩型金矿石 [7] 易处理 氰化浸出 91.3 [8] 85(80)

图1

某金矿选矿工艺流程"

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