滇西马厂箐金矿金的赋存状态及工艺特性研究  

Occurrence State and Technological Characteristics of Gold in Machangqing Gold Deposit in West of Yunnan

作　　者：普传杰[1] 秦德先[1] 

机构地区：[1]昆明理工大学

出　　处：《金属矿山》2006年第3期49-51,共3页Metal Mine

基　　金：云南省院校科研合作项目资助(编号:YK98008-2)

摘　　要：应用矿相显微镜、电子探针、X射线衍射仪和化学物相分析等测试手段,研究了马厂箐金矿中金及有害元素砷的赋存状态。金呈次显微粒和显微粒自然金,多以包裹体形式散布于毒砂和黄铁矿为主的载金矿物中,毒砂和黄铁矿主要以自形、半自形晶状态产出,少部份呈极细粒状(<10μm)包裹于脉石矿物中;矿石中有害元素砷主要以毒砂和含砷黄铁矿的矿物形式存在。还对矿石工艺特性进行了研究,为选冶工艺提供了必要依据。THe occurrence state of gold and arsonic a harmful element in Machangqing gold ore were studied by using testing means including mineralographic microscope, electron probe, X-ray diffractometer and chemical phase analysis Cold is found in the native ferm of submicroscopic or microscopic size, mostly scattering as inclusions in arsenopyrite and pyrite, which are the main gold-carrying minerals and mainly occur in idiomorphic or subhedral crystalline state, with a small part of very fine grains （ 〈 10μm） included in the gangue mineral. Arsonic the harmful element in the ore, is found mainly in the form of arsenopyrite and As-containing pyrite. Study was also made on the technological characteristics of the ore, providing a requisite basis for the beneficiation and metallurgical technology.

关 键 词：金矿 工艺矿物学 毒砂 黄铁矿 矿相显微镜 电子探针 X射线衍射仪 

分 类 号：P618.51[天文地球—矿床学] P618.510.5[天文地球—地质学]