PAC捕收剂提高凤凰山铜矿选别指标的试验研究

介绍了PAC捕收剂代替OSN－43^#捕收剂用于凤凰山铜矿选矿厂浮选流程半优先作业中的试验结果。试验结果表明，铜精矿品位提高1.27个百分点，回收率1.65个百分点，铜精矿中金和银的回收率分别提高7.43个百分点和4．33个百分点。     

乌拉尔铜-锌矿石选矿工艺研究结果

介绍了加伊斯克和列特里叶矿床的含黄铁矿的铜-锌矿石的特性、可选性研究结果和选矿厂的扩建计划。研究结果表明，应用半自磨技术，而不是采用常规的破碎-磨矿技术．这样可以提高选矿厂的处理能力。进行了扩大试验，以确定矿石的可磨度。研制了混合-分离浮选流程。预计的选矿指标为：在处理铜品位为1．46％，锌品位为0．46％的加伊斯克矿石时，铜精矿铜品位为15％，铜回收率为85％，锌精矿锌品位为45％，锌回收率为32％。在处理铜品位为3．6％，锌品位为1．2％的列特里叶矿石时，铜精矿铜品位为15％，铜回收率为82％，锌精矿锌品位为45％，锌回收率为45％。     

Mac-10捕收剂优先浮选高硫含铜矿石新工艺

以Mac-10为捕收剂，研究新桥硫铁矿高硫含铜矿石降低药剂成本、提高选矿指标的新工艺。结果表明，在石灰用量3kg／t、矿浆pH9．5左右、Mac-10用量48g／t的条件下，采用Mac-10优先选铜工艺浮选新桥硫铁矿，可获得铜品位14．28％、金品位16．94g／t，铜回收率84．47％、金回收率34．42％的铜精矿，与黄药工艺相比，铜精矿品位提高3．97％，铜回收率提高1．26％，铜精矿中金的品位和回收率分别提高7．42g／t和8．64％。     

PAC用于建德钢锌分选的试验研究

对建德难选多金属硫化矿，在铜锌分离处加入PAC新型捕收剂，铜精矿品位及回收率提高，铜精矿中含锌由7．4％降至4．07％，选矿药剂用量减少，每吨矿石药剂总成本下降。PAC新型捕收剂解决了以建德铜矿为代表的铜锌硫多金属硫化矿分离难的老问题，使老矿山的资源综合利用率大大提高。     

铜铁矿选矿工艺的研究

某铜铁矿的铁品位44．23％、铜品位0．24％，采用弱磁-强磁-浮选-重选的工艺，可得到铁品位60．12％、回收率78．52％的合格铁精矿和铜品位22．13％、回收率59．37％的合格铜精矿．     

新型捕收剂PAC铜锌分选性能初探

对建德铜锌硫化矿的选矿试验研究表明，单独使用新药剂PAC做捕收剂，可使铜精矿的品位提高8％，使铜精矿中锌、硫的损失率分别下降7％～15％和5％～17％，伴生金银回收率明显上升．PAC的适用范围较广（PH7～12），选择性好，抑制剂硫酸锌和亚硫酸钠的用量分别下降10kg／t和0．5kg／t。     

强化精选作业提高铜精矿品位

针对湖北某铜矿精矿品位偏低的实际生产情况,在查阅资料和选矿试验的基础上,提出合理的选矿工艺改进措施,经过多次的技术改造,铜精矿品位提高了2．54％,同时回收率也提高了1．03％。     

竹林矿高砷铜锡多金属硫化矿浮选药剂制度改进

通过闭路浮选试验，采用KM—109捕收起泡剂，研究提高高砷铜锡多金屑硫化矿铜精矿品位和回收率的浮选药剂制度。结果表明，新药剂方案对降低铜锡多金属硫化矿精矿含砷量，提高铜精矿品位和回收率有明显效果，铜精矿品位提高1．12％，铜回收率提高3．63％，铜精矿含砷降至0．87％。新药剂方案药剂种类少，加药点少，药剂消耗少。     

内蒙古获各琦铜矿石选矿试验研究

内蒙古获各琦铜矿石选矿厂采用丁基黄药作铜捕收 剂,２号油作起泡剂,通过“一次粗选,两次扫选,三次精选” 工艺流程,最终可以获得精矿品位为 ２０．００％,铜回收率为 ９４．００％的铜精矿.针对深部开采铜原矿品位逐年下降引起 的铜金属产量下降,对矿石进行了详细的工艺矿物学研究, 查明了铜矿物嵌布特征,在此基础上,试验采取了３种方法: (１)开发了新型高效铜捕收剂 XK４１９,XK４１９与戊基黄药组 合强化回收尾矿中损失的铜矿物,尤其是对部分铜矿物连生 体的回收,提升铜精矿回收率至９５．００％以上;(２)采用铜粗 精矿再磨工艺,提升铜精矿品位至２４．００％以上;(３)采用木 质素有效抑制再磨后解离的磁黄铁矿,采用“一次粗选、三次 精选、两次扫选、粗精矿再磨”工艺流程,在原矿含铜１．０４％、 含银４．５９g/t的条件下,可以获得含铜２４．２５％、含银６９．７０ g/t,铜回收率９５．２４％、银回收率为６２．００％的铜精矿.新工 艺铜精矿铜品位较原工艺提高了４．２５个百分点,铜精矿铜 回收率较原工艺提高了１．２４个百分点.     

艾萨磨在某高硫铜锌混合粗精矿铜锌分离中的应用

某高硫铜锌混合粗精矿在铜锌分离过程中难以获得铜品位18%以上的铜精矿,为解决铜精矿品位偏低的问题,进行了艾萨磨再磨工艺与现场球磨+水力旋流器再磨分级工艺对比试验研究。试验结果表明：采用艾萨磨工艺,铜锌分离作业可获得铜品位20.52%、锌含量2.38%、铜回收率89.32%的铜精矿,与现场球磨再磨工艺相比,铜精矿品位提高了2.82个百分点,锌含量降低了1.17个百分点,铜回收率提高了3.98个百分点。     

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     

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.