高砷锑金精矿矿浆电解技术与工业装备项目通过鉴定

正日前,北京矿冶研究总院和新邵辰州锑业有限责任公司共同完成的"高砷锑金精矿矿浆电解技术与工业装备"项目,通过了中国有色金属工业协会科技成果鉴定。鉴定委员会认为:高砷锑金精矿矿浆电解技术与工业装备为国内外首创,是世界锑冶炼技术的重大创新,工艺技术居于国际领先水平。"高砷锑金精矿矿浆电解技术与工业装备"项目研发成功了以高砷锑金精矿为原料的直接矿浆电解新工艺及装备,其主要技术特点和创新点是:①研     

矿浆电解法从复杂银精矿中提取银的研究

进行了矿浆电解法从复杂银精矿中提取银的研究。富含砷、锑、铜的银精矿先经过预处理,再进行矿浆电解,银的浸出率达到95%以上。     

矿浆电解盐酸+氯化钠体系SbC_3溶解性能研究

研究了矿浆电解"盐酸+氯化钠"体系中锑的溶解性能。结果表明,在NaCl大于100g/L、HCl大于0.4mol/L的范围内,可确定适合锑金精矿矿浆电解的"盐酸+氯化钠"体系耦合配制制度。优选配制制度为:NaCl 150g/L、HCl 0.6～0.8mol/L。在NaCl 150g/L、HCl 0.2～1.0mol/L时,饱和锑浓度C_(Sb)与HCl浓度C_(HCl)关系可用C_(Sb)=111.22632C_(HCl)~(2.27198)表示。     

高砷锑金精矿矿浆电解连续扩大试验

采用矿浆电解技术对高砷锑金精矿进行半工业试验。结果表明,锑的回收率达97%以上,金几乎全部富集于渣中,砷和硫绝大部分留置于渣中,从根本上避免了砷害和SO2危害。盐酸和电能消耗较少,每吨锑的盐酸消耗量为286kg,总电耗为3 389kWh,其中电解电耗1 318kWh。     

矿浆电解盐酸+氯化钠体系SbCl3溶解性能研究

研究了矿浆电解“盐酸+氯化钠”体系中锑的溶解性能。结果表明，在NaCl大于100 g/L、HCl大于0.4 mol/L的范围内，可确定适合锑金精矿矿浆电解的“盐酸+氯化钠”体系耦合配制制度。优选配制制度为：NaCl 150 g/L、HCl 0.6~0.8 mol/L。在NaCl 150 g/L、HCl 0.2~1.0 mol/L时，饱和锑浓度CSb与HCl浓度CHCl关系可用 CSb=111.22632CHCl2.27198表示。     

矿浆电解法从复杂银精矿中提取银的研究

进行了矿浆电解法从复杂银精矿中提取银的研究。富舍砷、锑、铜的银精矿先经过预处理，再进行矿浆电解，银的浸出率达到95％以上。     

P204萃取分离锑铁工艺研究

萃取分离锑铁是脆硫锑铅矿矿浆电解工艺过程的一个环节。P2 0 4可选择性地在NH4 Cl介质溶液中萃取铁。在 35 %(体积百分数 )P2 0 4、相比 (O/A) 1∶1、3级连续逆流萃取条件下 ,铁萃取率达 80 %～ 84%,锑、银基本不被萃取。含Fe总 1～ 1 4g/L的萃余液可返回矿浆电解循环使用。     

矿浆电解:湿法(粉末)冶金新技术研发成功

一种低耗能、低污染、高效益的湿法 (粉末 )冶金新技术已由北京矿冶研究总院以邱定蕃院士为首的攻关课题组研发成功。我国是世界上产锑最多的国家 ,但锑的冶炼技术几十年来进展不大。为了改变这一滞后状况、提高社会经济效益 ,以邱定蕃院士为首的攻关课题组 ,在实现国内外第一次从矿浆中直接电解金属铋实验的基础上 ,成功研制了脆硫锑铅矿矿浆电解新工艺及矿浆电解成套装备 ,并首次实现了矿浆电解工业化生产 ,获得了拥有中国自主知识产权的湿法 (粉末 )冶金新技术。并通过了国家验收。邱院士认为 ,矿物形态以复杂的脆硫锑铅矿为主。目前 ,对…     

复杂锑铅矿矿浆电解工艺和理论研究

开发了一个具有自主知识产权的处理复杂锑铅矿的新工艺 ,新工艺是复杂锑铅矿处理技术的创新和对矿浆电解技术应用的新突破。研究证实 ,采用矿浆电解法处理复杂锑铅矿 ,可以实现锑、铅的一步分离和锑的一步提取 ,在阴极可以直接得到金属锑板 ,锑的浸出率大于 98% ;铅以PbCl2 的形态沉淀入渣 ,经碳铵转化—脱硫 ,可以得到含铅大于 4 5 %、含硫小于 15 %的铅精矿和单质硫产品 ,铅的总回收率大于 95 % ,银的总回收率大于 80 %。     

矿浆电解的自动控制

根据锑金精矿矿浆电解的工艺特点和工业试验实践,对自动化技术在矿浆电解中应用的可行性、应用领域、控制方法进行详细探讨,并对主要测控设备进行对比选型。     

熔炼次数对M17返回料合金成分、组织和性能的影响

实验结果表明,M17铸造高温合金(%:0.16C、8.79Cr、5.79A1、4.93Ti、3.29Mo、15.20Co、0.78V、0.015B、0.073Zr、0.002S、0.001P、0.001 1O、0.001 0N)经25 kg真空感应炉返回重熔后,Si含量随重熔次数的增加而略有增加,合金中主要元素和其它杂质元素S、P、H的含量变化不大,而氧、氮略有增加;合金中初生碳化物由新合金中的草书体逐渐向返回合金块状转变,初生碳化物的遗传性堵塞合金凝固时的补缩通道,使返回料合金的疏松倾向增大,高温塑性下降较大。     

Shijiazhuang will Build the World's Biggest Replacingcopper-with-aluminum Cable Production Base

正Shijiazhuang City will build the world’s biggest replacing-copper-with-aluminum cable production base,the annual output value can reach 100 billion yuan,in the future it will develop replacing-copper-with-aluminum highend industry cluster.This piece of news was learned by the reporter at the Rare Earth highiron Aluminum Alloy[Nonferrous Business Opportunity:Aluminum alloy door]Cable Conductor New Technology Application Seminar held at the provincial capital.     

Chongqing is Preparing to Set Up Nonferrous Metal Exchange,in a Bid to Become the Transit Place of Kazakhstan Copper

正Since the beginning of Chongqing’s upgrading to a municipality directly under the Central Government,Chongqing City has established direct friendly relationship with Almaty,Kazakhstan,and carried out a series of cooperation in commerce and trade,and culture     

Guangxi Baise Extends Industrial Chain to Combat Loss in Aluminum Business

正"For each tonne of aluminum being produced,the upstream enterprise on the aluminum industrial chain will suffer loss about 2000yuan."Said Liang Xiao,Deputy Director of Pingguo Industrial Park Management Committee under the Guangxi Baise City,one of the four major aluminum industry bases in China,on August 11.Extending aluminum     

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL ANNUAL CONTENTS Volume 21(2014)

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Chinalco Straightened Out Copper Assets,and Delegated Stock Equity of Yunnan Copper

正Immediately after the news that Chinalco transferred 58%stock equity of Yunnan Copper Group to its wholly-owned subsidiary China Copper Corporation Limited free of charge was disclosed on July 9,many individual investors couldn’t help but to think:Does it mean China Copper Corporation Limited will assemble assets for overall listing?At present,among main copper business companies under China Copper Corporation     

The Development and Reform Commission Encourages Private Capital to Enter Geological Prospecting Field

正At the press conference recently held by the National Development and Reform Commission under the theme"Deepen Reform in Investment AuditApproval System",when answering questions from reporters,Huang Min,Director of the Department of Fixed Assets Investment of the National Development and Reform Commission,said that in the future it would continue to intensify efforts in geological prospecting,and actively guide social capital to enter this field.     

Guangxi's first Nickel Industry Development Research Report Was Released

正Recently,Guangxi Metallurgical Research Institute,a subsidiary of Guangxi Nonferrous Metals Group,completed survey on laterite and related manufacturers in the region,by combining the current development status of laterite both at home and abroad,it compiled Guangxi’s first"Research Report on the Development of Guangxi Nickel Industrial Chain"which adopted laterite as the study subject.This report expounded on the current     

China’s Major Non-ferrous Metals Imports & Exports(End of September. 2014)

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China's Major Non-ferrous Metals Imports & Exports

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