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Gold Science and Technology ›› 2018, Vol. 26 ›› Issue (5): 622-628.doi: 10.11872/j.issn.1005-2518.2018.05.622

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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

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

CLC Number: 

  • TD982

Flotation and metallurgy indexes of independent rock gold mineral resources in Qinghai Province"

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)

Fltation and metallurgy process flow of a gold mine"

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