某金红石矿区富矿体特征及其矿选矿试验研究

The Features of High-grade Rutile Orebodies in Liugang Rutile Deposit and Rutile Ore Beneficiation Test

在研究刘岗金红石矿区地质特征,金红石富矿体赋存特征,金红石的赋存状态、嵌布特征及粒度变化特征的基础上,采用新的选矿工艺对金红石矿进行了选矿试验。区内金红石富矿体赋存在左老庄组一段上部,含矿岩石主要是黑云角闪片岩和黑云斜长角闪片岩。金红石多呈半自形柱状、短柱状、粒状嵌布在角闪石、斜长石等脉石矿物之间。采用磨矿擦洗—重选—磁选—重选—微生物选矿工艺流程,获得最终精矿指标为:品位(RTiO2)91.07%,回收率(RTiO2)70.55%。微生物提纯金红石新方法的深入研究可作为开发利用南召—泌阳金红石矿带金红石矿的突破口。

Based on the geological features,occurrence features of high-grade rutile orebodies,rutile occurrence state,distribution feature,grain size variation in Liugang deposit,experimental research on adopting new technology for rutile ore had been carried out.High-grade rutile orebodies were at the upper part of first Member of Zuolaozhuang Formation.The ore-bearing rocks were mainly biotite-hornblende schist and biotite-plagioclase-hornblende schist.Rutile was mainly embedded between rutile gangue minerals such as graininess of the hornblende and the feldspar,assuming self half shape post shapes much,owing post the shape.Using the dressing technical process of scrubbing-gravity concentration-magnetic separation-gravity concentration-microorganism,the concentrate of RTiO2 91.07% with a recovery of RTiO2 70.55% was obtained.New method for micro-purification-depth study of rutile could be used as breakthrough of development and utilization of rutile ore in Nanzhao-Biyang rutile ore belt.