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某多金属硫化矿选矿工艺及伴生金银的回收 总被引:1,自引:0,他引:1
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。 相似文献
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复杂难选铜铅锌银多金属硫化矿选矿工艺研究 总被引:6,自引:2,他引:4
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。 相似文献
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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”。 相似文献
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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 相似文献
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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. 相似文献
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云南某高硫高铁铅锌矿含铅5.80%,含锌18.90%,含硫36.40%,属于复杂难选硫化矿,其中伴生贵金属银含量达80g/t。矿石中主要金属矿物为方铅矿、闪锌矿、黄铁矿等。通过对铅锌多金属硫化矿的浮选分离研究,采用"铅硫混合浮选—铅硫分离—尾矿再选锌"的浮选工艺流程,在磨矿细度为-74μm占70%时,优化药剂条件与添加方式,获得良好的分选指标。获得了铅精矿铅品位58.37%,铅回收率86.02%,锌精矿锌品位为50.25%,锌回收率为94.38%,铅精矿含银430.9g/t,银回收率为44.84%,有价元素得到了有效回收。 相似文献
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Gao Wei 《中国稀土信息(英文版)》2014,(11)
正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium 相似文献
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YANG Li 《中国稀土信息(英文版)》2014,(6)
<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy 相似文献
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《中国稀土信息(英文版)》2014,(8)
正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared 相似文献
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<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 相似文献
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《中国稀土信息(英文版)》2014,(6)
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 相似文献
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高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。 相似文献
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《中国稀土信息(英文版)》2014,(9)
正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to 相似文献
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Bai Wenping 《中国稀土信息(英文版)》2014,(12)
<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH 相似文献
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《中国稀土信息(英文版)》2014,(10)
<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 相似文献
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《中国稀土信息(英文版)》2014,(8)
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. 相似文献