北祁连山石居里富铜矿选矿性试验与研究
Milling experiment and research of Shijuli copper deposit in the North Qilian mountain
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摘要: 石居里铜矿床矿石中主要矿石矿物由黄铜矿及黄铁矿等组成。铜含量一般为4%～20%,由于黄铜矿与黄铁矿复杂的嵌布关系,采用传统的老三样(丁黄药、石灰、2#油)浮选(一段磨矿,小于0.074mm占70%左右)精矿粉的铜品位仅达15.03%。造成了一定铜资源的浪费。通过对该类型铜矿石的矿物学组构及特征的研究,经多次试验后采用DY-1捕收剂及两段磨矿流程,即一段粗磨矿(小于200目即0.074mm占70%左右)丢尾,二段粗精矿再磨(小于325目即0.043mm占95%左右)后精选,使铜精矿Cu品位达20.73%,同时使硫回收率由51.26%上升到74.11%。Abstract: The major ore mineral in the Shijuli copper deposit is chalcopyrite,copperas stone and so on.The content of copper in the deposit is about 4%～20%.Because of the complicated incrustation of chalco-pyrites and copperas stone,the outcome of traditional floatation of copper mineral which only contain a stage of mineral milling less than 0.074 mm take about 70% (the raw material is the fourth yellow drug,calcareo usness and the No.2 oil) is unideal,And the content of copper in the powder out from the progress is only 15.03%,it waste much copper mineral.By the research of mineralogy of the copper mineral in this area and many experiments,the researchers discovered that use DY-1 to capture the copper,and int roduced two stages of mineral milling.In the first stage,they grinded the copper mineral cursorily to make 70% of the mineral powder to 0.074mm.In the second stage,they continue to grind the milled mineral powder of the first stage to make 95% of them to 0.043mm.After that they go on to pick out the copper aboratively.As a result,they can get essential copper which its contentr each to about 20.73% (copper),and the recycle rate of the copper is 86.97%.And the essential sulfur content from which is reach to about 45.19% (sulfur),the recycle rate of the sulfur is 74.11%.The result of the experiment can apply to the mill-run progress in other diggings.
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Keywords:
- Shijuli /
- high copper contentore /
- floatation /
- experiment
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