某难选高硫含铜白钨矿选矿试验研究

某难选高硫含铜白钨矿中钨主要以白钨矿的形式存在,硫化铁主要以磁黄铁矿的形式存在。为给该矿石的开发利用提供技术支持,采用磁选-铜硫混合浮选-白钨浮选原则流程进行条件试验。结果表明,原矿磨矿至-74μm占65%时进行磁选,可获得品位为38.33%、回收率为51.14%的硫精矿,而磁选尾矿经铜硫混合-铜硫分离浮选,可分别获得品位为20.06%、回收率为73.12%的铜精矿和品位为35.20%、回收率为42.11%的硫精矿;其中铜硫混合浮选尾矿以碳酸钠为调整剂、水玻璃为抑制剂、731氧化石蜡皂为捕收剂,进行一粗一扫三精白钨常温浮选,可得到WO_3品位为63.93%、回收率为89.60%的白钨精矿,有效地实现了铜硫的分离和白钨矿的回收。     

印尼进口某难选铁铜硫多金属矿综合回收研究

因氧化严重,印尼进口某多金属矿铜硫分离困难,铁精矿含硫严重超标.针对该矿矿石性质,开发了浮选-磁选联合工艺,浮选中以HT药剂消除溶液中Cu2+,实现了铜硫矿的分离和回收,浮选尾矿再用磁选回收铁,获得铜精矿产率9.75%,品位22.05%,回收率75.17%,含金0.97 g/t,含银14 g/t.硫精矿产率30.76%,品位49.94%,回收率64.23%.铁精矿产率26.84%,品位60.24%,回收率76.26%.     

某高铁铜硫矿石的选矿试验工艺研究

针对某高铁铜硫矿石的性质,将原矿磨至细度为≤74μm占70%、以碳酸钠为pH调整剂、丁基黄药+丁铵黑药为组合捕收剂混合浮选铜硫,铜硫粗精矿再磨至≤45μm占85%后,主要以新型无机抑制剂DT-2#(次氯酸钙为有效成分)为黄铁矿抑制剂进行铜硫分离,浮选尾矿进行磁选选铁.试验结果表明,采用"铜硫混浮-粗精矿再磨-铜硫分离-浮选尾矿磁选"流程,在原矿含铜0.52%、硫2.31%、铁49.26%的条件下,可获得含铜22.36%、回收率为87.29%的铜精矿,含硫38.43%、回收率为62.88%的硫精矿,含铁66.98%,回收率为91.34%的铁精矿.所用工艺流程简单,选矿指标较佳.     

综合回收选铜尾矿中有价元素的研究

某选铜尾矿含铁、硫等有价元素,磁选法选铁时,铁精矿品位只有60%左右、含硫大于2%、含硅13.67%,为不合格产品。通过研究,制定了浮选脱硫-弱磁选铁-反浮选降硅的选别工艺,可得到铁品位66.82%、回收率82.73%的铁精矿和硫品位36.42%、回收率87.89%的硫精矿。     

新庄铜矿磁选精矿加温反浮选脱硫试验研究

江西省宜丰万国矿业新庄铜矿磁选精矿硫品位为1.65%,含量较高,严重影响精矿销售。为降低磁选精矿硫的含量,试验以新庄铜矿磁选精矿为研究对象,进行加温反浮选脱硫试验研究。采用硫酸调节矿浆pH为5.5、以FS为活化剂、TK-3为捕收剂、2号油为起泡剂,在一粗一精一扫的条件下,可获得铁精矿品位铁62.16%、硫0.58%、铁回收率96.28%、硫脱除率66.99%。试验指标良好,解决了新庄铜矿铁精矿硫品位高的难题。     

广东某高硫高铁难选铜矿选矿试验研究

针对高硫高铁复杂铜矿石性质的特点,采用铜浮选(粗精矿再磨)-磁黄铁矿磁选-硫浮选的磁浮联合工艺流程,关键技术是低碱优先浮铜和磁选脱除磁黄铁矿,有效解决黄铜矿与(磁)黄铁矿分选的技术难题.试验室小型闭路试验获得了铜品位21.77%、铜回收率81.49%的铜精矿,硫品位32.21%、铁品位48.57%、硫回收率29.28%的磁黄铁硫精矿,硫品位43.45%、硫回收率54.03%的硫精矿,总硫回收率达83.31%.     

某钼、锌、铁复杂多金属矿的选矿工艺研究

针对某钼、锌、铁复杂多金属矿石中含有可浮性极好的滑石、蛇纹石等特点,采用选择性捕收剂优先反浮选影响钼浮选的脉石,然后选钼,再锌、硫混选;浮选尾矿弱磁选铁。采用该工艺,试验获得了钼品位45.54%、回收率82.29%的钼精矿和锌品位48.07%、回收率84.14%的锌精矿,以及铁品位65.20%、对原矿全铁回收率53.46%(对原矿磁铁矿回收率81.30%)的铁精矿,同时获得了硫品位为38.75%、回收率为60.42%的硫精矿,使钼、锌、铁、硫都得到了综合回收。     

含银铁锰氧化矿石选矿工艺研究

研究了采用浮选铁—磁选锰联合工艺从内蒙古某地的含银铁锰矿石中回收赤铁矿、硬锰矿及软锰矿。试验结果表明:原矿经一次粗选、一次扫选、一次精选,获得铁品位61.79%赤铁精矿,铁回收率75.80%;铁浮选尾矿经强磁选,获得锰品位32.02%的锰精矿,锰回收率80.63%;银在铁精矿和锰精矿中的总回收率为84.60%。试验结果较为理想。     

某选铁尾矿低碱度铜硫分离试验研究

针对某选铁尾矿矿石性质,进行铜硫混合浮选,混合精矿再磨后铜硫分离的选别工艺,以乙黄药+丁胺黑药为组合捕收剂,新型抑制剂DT-4与石灰为铜硫分离抑制剂,进行铜硫浮选试验,最终获得铜品位26.68%,回收率80.39%铜精矿;硫品位47.68%,回收率74.82% 硫精矿,实现了铜硫的分离及铜硫的综合回收。     

铁铜锌多金属矿石选矿试验研究

青海某铁铜锌多金属矿石铜1.20%、全铁27.75%、锌0.64%、硫3.17%,主要金属矿物为磁铁矿、黄铜矿、铁闪锌矿、磁黄铁矿,矿物间共生关系复杂,粒度嵌布不均。采用原矿铜优先浮选—锌硫混浮再磨分离—弱磁选铁工艺流程,闭路试验获得铜精矿铜品位21.08%、铜回收率91.30%,锌精矿锌品位42.80%、锌回收率48.90%,铁精矿全铁品位67.49%、全铁回收率63.38%。     

Journal of Rare Earths Contents List of Vol.32(2014)

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Introducing Two Central Enterprises to Integrate Rare Earth Industry,Shandong Rare Earth Group Breaks Surface

正With the signing of"Letter of intention for Propelling Integration of Shandong Rare Earth Enterprises"between Shandong Province Commission Of Economy and Informatization,China IronSteel Research Institute Group("China Steel Institute"),and China Rare MetalsRare Earth Co.,Ltd("China Rare Earth"),the"Shandong Rare Earth Group"jointly set up by the 3 units thus broke surface.On August 9,reporters of the China Economic Herald learned from Shandong Province     

Aluminium Production by Province or City in 2014

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Refined Copper Production by Province or City in 2014

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Aluminium Production by Province or City in 2014

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China is Planning to Raise rare Earth Resource Tax Again

正In the face of the current situation of the lost WTO dispute on rare earth,and cancellation of export tariff for partial rare earth products,efforts of regulation and integration on rare earth by the state government will again be tightened.Reporters of the Economic Information Daily recently learned from authoritative sources that relevant ministries are     

Fabricated Copper Production by Province or City in 2014

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Refined Copper Production by Province or City in 2014

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Chinalco Signed Framework Agreement for Strategic Cooperation with Harbin Municipal Government

正Last month,Chinalco signed framework agreement for strategic cooperation with Harbin Municipal Government in Harbin Xiong Weiping,Chairman of Chinalco,said that based on the strategic deployment to build world top-class mining company with the highest growth potential,Chinalco was now concentrating all efforts on making strategic transition and structural adjustment,strategic cooperation with the local governments where     

Contributions to Baosteel Technical Research wanted

正Baosteel Technical Research,a quarterly journal,which is issued domestically and abroad,is run and sponsored by Baosteel Group Corporation.Baosteel Technical Research mainly reports the achievements in technological innovation,academic research,new product development and industrial equipment improvement by Baosteel.It will continue to follow up on hot topics and serve the company’s technological development and progress.Its readers include experts in