含砷铅锌矿选矿工艺研究及生产实践

在高碱条件下对云浮某含砷铅锌矿进行了分选试验。用乙硫氮为捕收剂、ＺｎＳＯ４和Ｎａ２ＳＯ３为抑制剂优先选铅，然后以ＣｕＳＯ４为活化剂用乙硫氮选锌，闭路试验获得了含Ｐｂ６３．１３％、回收率９８．８５％的铅精矿和含Ｚｎ４９．４６％、回收率９１．３４％的锌精矿。该工艺已投入生产。     

改善赫尔耶选矿厂微细粒矿的浮选选择性

澳大利亚阿贝福伊尔（Ａｂｅｒｆｏｙｌｅ）有限公司的赫尔耶（Ｈｅｌｌｙｅｒ）选厂处理含有价金属Ｚｎ，Ｐｂ，Ａｇ，Ｃｕ和Ａｕ的细粒结晶的块状硫化矿矿石，于１９８９年投产。该厂生产４种精矿产品，分别为Ｃｕ／Ａｇ精矿，Ｐｄ精矿，Ｚｎ精矿和混合精矿（Ｐｂ／Ｚｎ），１９９１年总的可获利回收率分别为Ｚｎ８０％，Ｐｂ５５％，Ａｇ５０％，Ｃｕ３０％和Ａｕ１０％。     

信息苑

信息苑新钢铁坑铁矿选矿新工艺分选难选褐铁矿取得新突破江西铁矿矿石是典型的难选褐铁矿。选厂生产２０多年来，选别工艺流程虽经多次改造，但指标仍然偏低。目前采用强磁－正浮选流程，选矿回收率达６５％左右，总精矿ＴＦｅ５０．６％，精矿含ＳｉＯ２在１４％以上，产...     

锑铅锌多金属硫化矿综合利用工艺的研究与实践

研究了锑铅锌多金属硫化矿中脆硫锑铅矿与闪锌矿的分选以及用锑铅精矿为原料制取锑白（Ｓｂ＿２Ｓ＿３）和红丹（Ｐｂ＿３Ｏ＿４）的方法。结果表明，采用浮选－湿法氯化法联合工艺可使矿石中锑，铅、锌等多种有价成分得到合理的利用，并取得了满意的分选结果。     

低品位锑铅锌多金属硫化矿物质成分的研究（续）

研究了广西煤某选厂低品位锑铅锌多金属硫化矿脉石中炭质成分，查明金属回收率低的主要原因是预先脱炭作业而使金属损失，证明不可能采用机械方法除炭在于炭质与脉石矿物共生关系复杂，并试验出新的分选工艺，使产品质量和金属回收率显著提高。     

某铅锌氧化矿石选别工艺研究

某以锌为主的氧化铅锌矿石，原矿品位Ｐｂ：０．４４％、Ｚｎ：５．９２％。本文通过系统研究，确定了合理的选矿方法，产品结构，最佳工艺流程及最终精矿选别指标。     

ZPbSb－16－16－1．8Pb基铸造合金

ＺＰｂＳｂ－１６－１６－１．８Ｐｂ基铸造合金肖爱英（长沙矿冶研究院，长沙，４１００１２）１９９４年７月，长沙矿冶研究院受长沙电业局的委托，承担了浇注耐张线夹（电缆接头）用Ｐｂ基铸造合金的研制任务。所研制的ＺＰｂＳｂ－１６－１６－１．８低熔点Ｐｂ基合金...     

金狮岭铅锌矿选矿工艺的研究

金狮岭有色金属矿属富铅，富硫（Ｐｂ１３．３５％，Ｚｎ４．５８％，Ｓ２９．８３％）和铅锌呈相细不均匀嵌布状态存在的铅锌矿石，选矿工艺采用阶段磨矿－优先等可浮流程获得铅精矿品位为５８．８０％，回收率８１．１７％，锌精矿品位为４１．３９％，回收率５５．０８％的小型闭路试验结果。     

采用LIX—65NS捕收剂浮选印度Rakha铜矿石

使用捕收剂ＬＩＸ－６５ＮＳ（芳烃２羟基５壬基二苯甲酮肟）成功地浮选了Ｒａｋｈａ铜选厂的铜矿石。开路浮试验证明了它的有效性。含１％的原矿经一段浮即可得到含铜２３．７％的铜精矿。回收率高于９０％，选厂目前采用粗选、扫选、二段精选流程。ＬＩＸ－６５ＮＳ回收Ｒａｋｈａ矿石中铜的指标优于常用黄药。     

贫矿粗粒预选新工艺的研究

针对大厂贫矿石性质，采用ＧＺＤ－Ｉ型动筛跳汰机进行贫矿粗粒预选新工艺的研究，结果表明，将原故破碎分级，其中２０～１２ｍｍ和１２～３ｍｍ两粒级入动筛跳汰机选别，－３ｍｍ粒级作为重产品直接与动筛跳汰机粗精矿合并的工艺不仅合理，且工艺指标好Ｓｎ，ｐｂ，Ｚｎ的回收率分别为９３．３０％，８６．１９％，９０．２３％，抛废率为３８．０３％。     

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     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<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     

Market opportunities and challenges for rare earth polishing powder

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     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

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     

矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

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。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586     

Market and recycling of NiMH battery

<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     

China rare earth market review

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     

唐口煤矿深部复杂开采工作面瓦斯分源涌出规律研究

研究工作面瓦斯涌出规律对工作面瓦斯治理有重要意义。为了得到唐口煤矿深部3号煤层复杂开采条件下工作面回采时期瓦斯涌出时空演化规律,选取6304工作面作为对象,采用实测方法研究6304工作面瓦斯涌出规律。结果表明:6304工作面瓦斯涌出量为6.534 m³/min,其中煤壁占34.27%,落煤占29.62%,采空区占36.11%;沿工作面倾向由低到高,瓦斯浓度整体为上升趋势,其中1—76号架工作面瓦斯浓度小于0.20%,76—102号架瓦斯浓度上升明显,最大为0.387%;上隅角的后部采空区是工作面的瓦斯主要涌出源,上隅角1号测点瓦斯浓度0.78%,上隅角周边3号、5号、7号、8号、9号测点瓦斯浓度平均为0.643%;周期来压时,上隅角瓦斯相对平时较高。研究为针对性的瓦斯分源监控与灾害防治提供基础。