The invention discloses a beneficiation method for carbon and high magnetic pyrite type lead-zinc sulfide ore, which is carried out in the following steps, grinding and adjusting the pulp pH to 8~10; lead flotation, XK collector, and No. 2 oil foaming agent for coarse selection of lead minerals; regrinding the flotation coarse concentrate and adding lime to carry out the selection of lead minerals and flotation tail. The ore entered the zinc flotation operation. The advantages of the invention are as follows: first, without decarbonization and magnetic separation after grinding, the flotation operation is directly entered, and the flotation recovery rate of lead and zinc is ensured. Second, under the low pulp pH, a selective compound collector XK is used to first flotation of lead without adding zinc inhibitors such as Na2SO3, Na2S2O3, ZnSO4 and so on; Three, the use of collector XK can greatly reduce the use of adjusting agent, thus reducing the pollution of chemicals to the environment, reducing the cost of mineral processing, and at the same time, under the weak alkali, it is beneficial to the recovery of rare precious metals such as associated gold and silver. One
【技术实现步骤摘要】
一种含碳及高磁黄铁矿型硫化铅锌矿的选矿方法
本专利技术涉及矿物浮选
,尤其涉及一种含碳及高磁黄铁矿型硫化铅锌矿的选矿方法。
技术介绍
我国大部分铅锌矿是多金属硫化矿,其特点是品位低、中小型矿居多、组分复杂,常与方铅矿、铁闪锌矿和磁黄铁矿致密共生。对于含有碳质的铅锌硫化矿浮选,一般采用预先脱碳-铅锌浮选流程。胡敏研究了内蒙古含碳低品位铅锌硫化矿浮选试验,采用松醇油脱碳,铅精选添加铁铬盐木质素抑碳浮铅,经两次脱碳后铅损失5.2%,锌损失5.6%(胡敏.含碳难选低品位铅锌硫化矿铅锌分离试验研究.有色金属(选矿部分),2010,(3):16-21)。邱显扬等对某含碳铅锌矿进行浮选试验研究,采用铅精矿脱碳取代预先脱碳,采用无机物抑铅浮碳,铅精矿回收率损失3%(邱显扬,叶威,戴子林,等.某含碳铅锌矿铅锌分离试验研究.矿冶工程,2012,32(1):39-41)。一般对含磁黄铁矿较高的硫化铅锌矿,常利用磁黄铁矿具有磁性的特点,采用预先强磁选除去部分磁黄铁矿,减少后续铅锌浮选作业对磁黄铁矿的强抑制。冯章标等研究了金铅锌硫化矿选矿工艺,采用磁选脱除磁黄铁矿-金铅混合浮选-金铅分离-尾矿活化选锌,研究了不同磁场强度对金、铅、锌在磁选精矿中损失,最终金损失3-3.3g/t,铅回收率损失5.1-6.4%,锌回收率损失5.3-5.7%(冯章标,榆献林,陈江安.安徽某金铅锌硫化矿选矿新工艺试验研究.黄金科技技术,2016,24(3):7-10)。上述预先浮选脱碳、磁选脱除磁黄铁矿可以提高铅锌精矿品位,但铅锌回收率显著下降,特别对伴生金银等稀贵金属的综合回收差。铅锌浮选分离时,一 ...
【技术保护点】
1.一种含碳及高磁黄铁矿型硫化铅锌矿的选矿方法,其特征在于:按以下步骤进行,
【技术特征摘要】
1.一种含碳及高磁黄铁矿型硫化铅锌矿的选矿方法,其特征在于:按以下步骤进行,(1)磨矿,加入石灰调节矿浆pH,使矿浆pH保持在8~10,细度为-0.074mm占60%~70%;(2)铅浮选,加入XK捕收剂,用量为30-90g/t原矿,加入2号油起泡剂,用量为15-20g/t原矿,进行铅矿物粗选;(3)将浮选粗精矿再磨至-0.043mm占85%~90%,加入石灰800~1000g/t原矿,进行铅矿物精选,浮选尾矿进入锌浮选作业;所述XK捕收剂含有(C7H7O)2PSSNa与(C2H5)2N...
【专利技术属性】
技术研发人员:郭超华,鱼高学,黄建平,唐谦,毛富邦,杨建军,陶恒昌,戴子林,
申请(专利权)人:西部矿业股份有限公司,巴彦淖尔西部铜业有限公司,
类型:发明
国别省市:青海,63
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