某多金属硫化矿选矿工艺及伴生金银的回收

本文介绍了国内某铜、铅、锌多金属硫化矿的选矿工艺及伴生金银的回收试验研究，结果表明：采用浮选工艺可生产出铜、铅、锌三种合格精矿，金、银则主要富集在铜精矿和铅精矿中，可在冶炼时综合回收。     

某铜铅锌多金属硫化矿选矿试验研究

对某富含金银等贵金属的复杂铜铅锌多金属硫化矿进行了选矿试验研究。以BK916作铜捕收剂、BK906作铅捕收剂, 采用铜优先浮选-铅浮选-锌硫混合浮选-锌硫分离工艺回收主要有价元素, 获得了铜精矿铜品位24.26%、回收率58.21%, 铅精矿铅品位70.75%、铅回收率86.55%, 锌精矿锌品位51.53%、锌回收率89.44%, 硫精矿硫品位39.84%、回收率38.03%的良好选矿指标; 铜、铅、锌、硫4种精矿产品中金总回收率92.16%、银总回收率89.44%。     

复杂难选铜铅锌银多金属硫化矿选矿工艺研究

陕西某铜铅锌银多金属硫化矿铜、铅、硫共生关系非常密切,且相互交代形成不同的包裹形式,针对该矿石特点,采用铜、铅、硫部分混合浮选,混合精矿再磨脱硫,用TZ-10抑铜浮铅,使铅、锌、铜、硫、银得到最大限度的回收,获得铅精矿含铅55.81%、铅回收率73.31%,锌精矿含锌57.33%、锌回收率83.42%,硫精矿含硫41.76%、硫回收率45.92%,铜精矿含铜9.84%、含银1660g/t、铜回收率57.14%、银总回收率69.75%的浮选指标。为该多金属硫化矿提供一套经济合理、技术可行的工艺流程,充分利用矿山资源,使矿山效益最大化。     

火法-湿法联合工艺处理铅铋银硫化矿综合回收有价金属

研究采用火法-湿法联合工艺处理铅铋银硫化矿，综合回收有价金属。铅铋银硫化矿直接碱法熔炼，分别处理产出的铅铋合金、浮渣和冰铜，回收铅、铋、银、铜、钼、锌等。“火法-湿法联合流程”适宜于铅、铋、贵金属及稀散金属的混合硫化矿，有价金属的综合回收效果良好。该方法对环境无污染，能耗和原材料消耗少，金属综合回收率高，是清洁生产工艺。     

锌冶炼工艺技术及研究与发展方向探讨

锌精矿伴生有贵金属、稀散金属和其他有色金属。我国年消耗锌精矿约1070万t，其中约含有价金属资源量：铜42800t、镉32100t、钴321t、镍214t、镓963t、铟3210t、铊214t、锗963t、锡5350t、铅96300t、锑6420t、铋1070t、银856t、金1.07t，伴生金属资源量总价值达200亿元以上。简述了我国锌冶炼主要工艺技术特点，指出我国在锌精矿中的锌及其伴生的有价金属回收利用方面虽然取得了较大的成绩，但由于现有冶炼工艺存在有价元素镓、铟、铊、锗、锡、锑、铋、铝、铜、银、金、铅、锌等随铁渣走造成损失大的难题，以及低含量的有价元素不能富集回收利用的难题，致使经济效益损失巨大，并存在环境污染风险。未来锌冶炼工艺的研究与发展方向为资源利用率高、经济效益好及环境污染小的“高温高酸浸出——稀散金属循环累积富集——一渣两液三路分离回收有价金属法”。     

铜铅锌硫化矿磨矿流程的几个优化问题

铜铅锌多金属硫化矿,在我国有色金属选矿厂中占有重要的地位。此类矿石除含有铜、铅、锌、硫等矿物外,往往伴生有金银等贵金属或其它钨钼锡等稀有元素,是生产铜铅锌金属和其它贵金属产品的重要原料。随着综合利用的开展,许多有色金属选矿厂从中获得了     

低品位铜铅多金属硫化矿浮选分离试验研究

对四川汉源地区某高硫型低品位铜铅多金属硫化矿进行了浮选分离试验研究。采用混合浮选得到铜铅混合精矿, 铜铅混合精矿经铜铅分离, 分别得到铜品位18.72%、含铅0.66%、含硫22.03%、铜回收率87.12%的铜精矿和铅品位59.66%、含铜0.58%、含硫14.89%、铅回收率85.72%的铅精矿; 铜铅混合浮选尾矿再浮选可进一步得到硫品位48.73%、含铜0.05%、含铅0.22%、硫回收率87.93%的硫精矿, 实现了该低品位多金属硫化矿中有价金属的综合回收。     

大厂100号特富矿选矿新工艺工业应用的研究

大厂100号特富矿属于锡石-多金属硫化矿.根据矿石性质,将磨矿粒度控制在0.25mm以下,原则流程为磁-浮-重,先用磁选选出磁黄铁矿,消除对硫化矿浮选的影响.浮选部分采用优先浮铅锑-混浮-锌硫分离,用重选摇床从浮选尾矿中回收锡.本工艺经长坡选厂应用表明,工艺合理,生产指标均达到设计要求,锡精矿品位47.79%,回收率71.77%;铅锑精矿含铅31.78%,回收率86.78%;锌精矿品位为47.79%,回收率82.10%.     

复杂铅锑银锌多金属硫化矿浮选分离工艺研究

针对广西复杂铅锑银锌多金属硫化矿,在工艺矿物学研究的基础上,进行了“铅锑银优先混浮-锌硫混浮及分离”和“铅锑银硫混浮及分离-锌浮选”工艺流程的对比研究。结果表明,在弱抑制条件下,采用硫酸锌 亚硫酸钠作抑制剂,乙硫氮作捕收剂,“铅锑银硫混浮及分离-锌浮选”工艺流程可实现铅锑银硫与锌的有效分离;铅锑银硫混合精矿经再磨处理,采用少量石灰作抑制剂,可实现铅锑银与硫的有效分离;闭路试验获得了含铅67.80%、含银2606.17 g/t、含锑5.01%的铅精矿,铅、银、锑回收率分别为91.08%、77.46%和62.42%;含锌51.40%、含银295.48 g/t的锌精矿,锌、银回收率分别为87.29%和6.55%;含硫49.95%的硫精矿,硫回收率41.29%。     

让职工参政、议政、监政

华锡集团车河选矿厂是柳州华锡集团有限责任公司下属的主体生产单位之一,年处理原矿170～180万吨,主要产品为锡、锌、铅、锑等精矿金属,综合回收铟、银等稀贵金属,年销售收入约8亿元人民币,现有在职职工1200多人,为目前亚洲生产规模最大的锡石硫化有色金属选矿厂.     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

China rare earth market review

正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow.     

Galaxy Magnets achieved the net profit of 34.02 million yuan in the first six months of 2014

正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets.     

Rare Earth Application in Steel in China

<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel     

Current situation and future trend of China rare earth luminescent materialindustry(continued)

<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why     

稀散金属产业的观察与思考

分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求.     

Brief news

正Corun invested another 50 million yuan in power battery for HEV Hunan Corun announced on 27 June that they had signed the cooperation agreement to jointly built Corun(Shaoxing)Autos Power Battery System Co.,Ltd.in Shaoxing Binhai New City.According to the announcement,total registered     

铜熔炼中锍品位对杂质元素分配行为的影响

借助于多相、多成分系统中平衡计算的手段，开发出微量元素砷、锑、铋及伴生元素铅、锌等在铜熔炼中分配行为的计算机模型。利用该模型对铜熔炼过程进行计算机模拟，分析了冰铜品位对砷、锑、铋、铅和锌等杂质元素的分压、活度系数及它们在冰铜、炉渣和气相中分配率的影响，并讨论其热力学分析结果对生产实践的指导意义。     

New energy vehicle:an opportunity for rare earth magnets

<正>Extracted from Securities Guide 1.Popularity of new energy vehicles—an irresistible market trend1.1 Progress of new energy vehicles Chinese Premier Li Keqiang said recently on a visit to Xi'an BYD Autos that new energy vehicles,especially new energy bus,can lessen environment and noise pollution.He encouraged the use of new