期刊文献+
共找到20篇文章
< 1 >
每页显示 20 50 100
一种处理氧化铜矿的浸出萃取电积法
1
《中国金属通报》 1998年第4期19-19,共1页
一种处理氧化铜矿的浸出萃取电积法,涉及到从氧化铜矿中回收金属铜采用的浸出萃取电积湿法冶金工艺,特别适用于矿点多、矿量少、分散型氧化铜矿的处理。
关键词 电积法 电积 回收金属 冶金工艺 氧化铜矿石 湿法 浸出萃取 分散型 处理
下载PDF
低品位铜矿浸出-萃取-电积工艺的发展与展望 被引量:2
2
作者 张兴仁 《矿产综合利用》 CAS 北大核心 1998年第2期26-31,共6页
论述了开发利用我国大量低品位铜矿的重要意义,比较详细地介绍了铜矿浸出—萃取电积工艺的原理、特点和生产发展史,提出了我国铜矿浸出—萃取—电积工艺的发展对策。
关键词 低品位铜矿 --电积 铜矿 选冶联合选矿
下载PDF
高碱性脉石低品位氧化铜矿的溶剂萃取工艺研究 被引量:8
3
作者 王成彦 《有色金属(冶炼部分)》 CAS 2003年第3期2-6,共5页
针对碱性脉石含量较高的低品位氧化铜矿的开发利用 ,提出了基于低浓度氨堆浸的浸出—萃取—电积工艺 ,并在浸出工艺研究的基础上 ,对低浓度氨堆浸的氨浸浸出液进行了较系统的萃取工艺基础研究。
关键词 氧化铜矿 --电积
下载PDF
新疆砂岩型氧化铜矿溶剂萃取工艺研究 被引量:1
4
作者 王成彦 《新疆地质》 CAS CSCD 2001年第2期142-145,158,共5页
溶剂萃取技术是目前常用的处理低浓度铜溶液的方法。根据新疆砂岩型铜矿资源和自然条件特点,对不同浸出工艺条件、不同浸出溶液进行了溶剂萃取的工艺基础研究,提出了基于低浓度氨堆浸的浸出—萃取—电积工艺,以达到成功开发新疆砂岩... 溶剂萃取技术是目前常用的处理低浓度铜溶液的方法。根据新疆砂岩型铜矿资源和自然条件特点,对不同浸出工艺条件、不同浸出溶液进行了溶剂萃取的工艺基础研究,提出了基于低浓度氨堆浸的浸出—萃取—电积工艺,以达到成功开发新疆砂岩型氧化铜矿之目的。 展开更多
关键词 氧化铜矿 --电积工艺 回收率
下载PDF
浸出及洗涤浓密机管道系统优化改造 被引量:1
5
作者 银红然 《世界有色金属》 2018年第11期265-266,共2页
本文通过原浸出及逆流浓密洗涤工艺流程弊端分析,探讨研究浸出及逆流浓密洗涤工艺流程优化设计改造方案,从浸出及CCD逆流浓密洗涤工艺分析、故障原因分析、优化改造方案及故障处理措施等方面予以叙述,并进行了实践应用,取得了较好的经... 本文通过原浸出及逆流浓密洗涤工艺流程弊端分析,探讨研究浸出及逆流浓密洗涤工艺流程优化设计改造方案,从浸出及CCD逆流浓密洗涤工艺分析、故障原因分析、优化改造方案及故障处理措施等方面予以叙述,并进行了实践应用,取得了较好的经济效益和社会效益。 展开更多
关键词 浸出萃取 逆流 浓密洗涤 优化改造
下载PDF
废水资源化利用在德兴铜矿的实践 被引量:7
6
作者 占幼鸿 《有色金属工程》 CAS CSCD 北大核心 2015年第4期90-93,共4页
分析德兴铜矿废水来源和性质,介绍德兴铜矿酸碱废水综合治理及回水利用技术、酸性水堆浸提铜技术和化学硫化技术的工程应用。每年可回用选矿废水约10000万t,截至2014年底,累计从废石中回收铜19174t,从低浓度含铜酸性废水中回收硫化铜含... 分析德兴铜矿废水来源和性质,介绍德兴铜矿酸碱废水综合治理及回水利用技术、酸性水堆浸提铜技术和化学硫化技术的工程应用。每年可回用选矿废水约10000万t,截至2014年底,累计从废石中回收铜19174t,从低浓度含铜酸性废水中回收硫化铜含铜5891t。可为同类型矿山的废水资源化利用提供借鉴。 展开更多
关键词 废水 综合治理 回水利用 硫化沉淀 —电积
下载PDF
镍精炼工艺比较及发展方向 被引量:4
7
作者 钟清慎 贺秀珍 《有色冶金节能》 2021年第3期4-10,共7页
本文比较分析了国内外镍冶炼企业采用的各种镍精炼工艺的技术特点,简要总结了金川镍精炼技术发展概况、取得突破的重大关键技术和金川镍精炼工艺存在的关键技术难题。结果表明:由传统硫化镍可溶阳极电解精炼工艺向硫酸浸出萃取分离电积... 本文比较分析了国内外镍冶炼企业采用的各种镍精炼工艺的技术特点,简要总结了金川镍精炼技术发展概况、取得突破的重大关键技术和金川镍精炼工艺存在的关键技术难题。结果表明:由传统硫化镍可溶阳极电解精炼工艺向硫酸浸出萃取分离电积精炼法或浓缩结晶法、氯化浸出萃取净化电积精炼法和羰基精炼法发展是镍精炼技术改进的主流方向。其中,羰基精炼法具有选择性最高、工艺流程最短、最容易实现自动化、环境最友好,节能降耗显著,关键技术均已突破的优点,是大型镍精炼企业镍精炼工艺改进的最优先方向。 展开更多
关键词 镍精炼工艺 硫化镍 氧化镍 可溶阳极电解精炼法 硫酸电积精炼法 硫酸浸出萃取净化结晶法 氯化电积精炼法 羰基精炼法 高压氢还原法 技术改进
下载PDF
铅钼矿石选矿新技术的开发与研究
8
作者 付鑫盛 《内蒙古煤炭经济》 2021年第10期47-48,共2页
本文对我国的钼金属资源的特点进行了简单探讨,并对现阶段我国铅钼矿选矿方面的技术,从药剂、设备和生产等方面进行了总结,分析了钼资源开发利用取得的成就和技术发展。
关键词 铅钼矿石 选矿技术 浸出萃取
下载PDF
Recovery of iron and rare earth elements from red mud through an acid leaching-stepwise extraction approach 被引量:32
9
作者 ZHANG Xue-kai ZHOU Kang-gen +3 位作者 CHEN Wei LEI Qing-yuan HUANG Ying PENG Chang-hong 《Journal of Central South University》 SCIE EI CAS CSCD 2019年第2期458-466,共9页
A feasible approach to selectively recover iron and rare earth elements(REEs)from red mud through acid leaching-coordination-solvent extraction was proposed.The leaching efficiencies of Fe,Al,Ti,Sc,La,Ce,Nd and Y can ... A feasible approach to selectively recover iron and rare earth elements(REEs)from red mud through acid leaching-coordination-solvent extraction was proposed.The leaching efficiencies of Fe,Al,Ti,Sc,La,Ce,Nd and Y can reach up to 95.9%,82.1%,68.3%,93.3%,82.3%,96.9%,98.3%and 95.6%,respectively,under the optimal condition in the leaching process.Aliquat 336 showed excellent extraction performance of iron in chloride-rich solution,and the maximum extraction efficiency can reach over 96%in one time extraction while the loss of other metals was less than 10%,under the condition of Aliquat 336 concentration(v/v)of 30%,aqueous-organic ratio of 1.0 and extraction time of 20 min.Furthermore,P204 can effectively extract the scandium while Al and most other REEs remain in the aqueous phase.This approach may provide a new insight for the recovery of valuable resources from red mud. 展开更多
关键词 red mud IRON rare earth elements LEACHING solvent extraction
下载PDF
Research and development trends of hydrometallurgy:An overview based on Hydrometallurgy literature from 1975 to 2019 被引量:12
10
作者 Li-pan JIA Jiang-jiang HUANG +5 位作者 Ze-long MA Xu-heng LIU Xing-yu CHEN Jiang-tao LI Li-hua HE Zhong-wei ZHAO 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2020年第11期3147-3160,共14页
Modern hydrometallurgy has been developing for more than 100 years and the related articles keep piling up.Based on a bibliometric analysis of the articles in Hydrometallurgy,the most authoritative journal in the fiel... Modern hydrometallurgy has been developing for more than 100 years and the related articles keep piling up.Based on a bibliometric analysis of the articles in Hydrometallurgy,the most authoritative journal in the field of hydrometallurgy,we try to catch the research and development trends from a global perspective.Firstly,keywords burstness shows that rare earth,recycling,lithium,ionic liquid,and thorium are the hotspots in recent years,and the economic and technological reasons behind them were discussed in depth.Secondly,the proportion of biohydrometallurgy grows fast from 5%to 13%and the related articles are almost all about bioleaching.There are some new directions such as direct preparation of materials in hydrometallurgical processes and ion-imprinted techniques.Thirdly,the advanced instrument analysis methods such as XAFS(X-ray absorption fine structure),gene sequencing,and micro-CT promote the deep understanding of hydrometallurgy mechanism.Finally,the cooperation network and contribution of the main institutes were mapped. 展开更多
关键词 development trends LEACHING solvent extraction BIOHYDROMETALLURGY electro-hydrometallurgy CiteSpace
下载PDF
铜锌混合氧化矿回收锌生产实践
11
作者 王恒利 戴江洪 丁淑荣 《中国有色冶金》 CAS 北大核心 2022年第4期25-29,共5页
铜锌混合氧化矿属于复杂含锌矿物,采用浮选法对氧化矿中的铜矿物和锌矿物进行分离的效果比较差。某冶炼企业将铜锌混合氧化矿采用浸出-萃取-电积提取金属铜和金属锌,该工艺中除锌萃取技术外,其他技术均属于常规工艺。锌萃取工艺采取P20... 铜锌混合氧化矿属于复杂含锌矿物,采用浮选法对氧化矿中的铜矿物和锌矿物进行分离的效果比较差。某冶炼企业将铜锌混合氧化矿采用浸出-萃取-电积提取金属铜和金属锌,该工艺中除锌萃取技术外,其他技术均属于常规工艺。锌萃取工艺采取P204为萃取剂,260~#溶剂油为稀释剂,富锌液经除油工序后再经压滤,然后送锌电积工序。针对生产实践中的问题通过采取提高锌萃取原液的锌浓度、优化萃取工艺、加强设备防腐等措施均已得到解决,锌锭实际产能超过了设计产能,达到1.3~1.4万t/a。该项目的成功运行实现了从铜锌混合氧化矿物中综合提取金属铜和锌,为后续新建项目的设计及生产提供了经验。 展开更多
关键词 铜锌混合氧化矿 --电积工艺 锌回收率 电解液杂质 活性炭消耗量
下载PDF
Coordination leaching of tungsten from scheelite concentrate with phosphorus in nitric acid 被引量:3
12
作者 张文娟 杨金洪 +2 位作者 赵中伟 王文强 李江涛 《Journal of Central South University》 SCIE EI CAS CSCD 2016年第6期1312-1317,共6页
A hydrometallurgical process for tungsten extraction and recovery from scheelite is reported.The technology includes leaching scheelite using phosphoric acid as chelating agent in nitric acid solutions,extracting tung... A hydrometallurgical process for tungsten extraction and recovery from scheelite is reported.The technology includes leaching scheelite using phosphoric acid as chelating agent in nitric acid solutions,extracting tungsten by solvent extraction and reusing leaching agent.In the leaching process,affecting factors,such as temperature,leaching time,nitric acid and dosage of phosphoric acid,were examined on recovery of tungsten.Results show that more than 97%of tungsten could be extracted under conditions of leaching temperature of 80-90°C,HNO3 concentration of 3.0-4.0 mol/L,liquild-to-soild ratio of 10:1,H3PO4 dosage of 3 stoichiometric ratio and leaching time of 3 h.Solvent extraction was then employed for the W recovery from the leachate with a organic system of 40%(v/v)N235,30%(v/v)TBP,and 30%sulfonated kerosene.Approximately 99.93%of W was extracted and ammonium tungstate solution containing 193 g/L W was obtained with a stripping rate of 98.10%under the optimized conditions. 展开更多
关键词 SCHEELITE nitric acid phosphoric acid coordination leaching
下载PDF
铜的生产趋势以及对过去十年铜工业的回顾 被引量:2
13
作者 夏继平 《中国有色冶金》 CAS 2018年第3期1-9,共9页
从2002年至2012年的十年间,新的铜精矿产能已达到670万t,相当于200万t铜。精矿供应的增加刺激一些新的铜冶炼厂的建设以及现有工厂的现代化改造和扩产升级来满足需求。本文概述了铜的提取工业,回顾了近期铜产业的生产趋势和变化,包括高... 从2002年至2012年的十年间,新的铜精矿产能已达到670万t,相当于200万t铜。精矿供应的增加刺激一些新的铜冶炼厂的建设以及现有工厂的现代化改造和扩产升级来满足需求。本文概述了铜的提取工业,回顾了近期铜产业的生产趋势和变化,包括高温冶金、湿法冶金技术的发展。沃莱帕森斯公司支持了其中的许多项目,对这一部分作了简要的介绍。最后介绍了有关铜工业未来发展方向的若干设想。 展开更多
关键词 全球铜储量 铜产量 铜消耗 铜回收 冶炼 -电积 中国 智利
下载PDF
Enhanced extraction of scandium and inhibiting of iron from acid leaching solution of red mud by D2EHPA and sodium chloride 被引量:3
14
作者 LIWang LIU Yue ZHU Xiao-bo 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第10期3029-3039,共11页
D2EHPA(P204),tri-butyl-phosphate(TBP)and sodium chloride(NaCl)were attractive for selective extraction of scandium from acid leaching solution of red mud.The extraction parameters of P204 concentration(X_(P204)),NaCl ... D2EHPA(P204),tri-butyl-phosphate(TBP)and sodium chloride(NaCl)were attractive for selective extraction of scandium from acid leaching solution of red mud.The extraction parameters of P204 concentration(X_(P204)),NaCl concentration(C_(NaCl)),pH value,reaction time,stirring speed and O/A were investigated to extract scandium and separate iron from the acid leaching solution.The extraction mechanism was analyzed by Fourier transform infrared spectroscopy(FT-IR)and thermodynamic theory.The single-stage extraction efficiency of scandium,iron andβ(Sc/Fe)were 99.1%,9.4%and 1061.2,respectively,with C_(NaCl) of 75 g/L and XP204 of 0.75 at solution pH value of 1.2 and stirring speed of 200 r/min for 6 min,in which a good separation effect of scandium and iron was obtained.The vibration absorption peak Sc─O was contributed to the extraction of scandium with P204.The complex[FeCln]^(3−n) existed in the solution with adding NaCl into the acid leaching solution.The value of n was higher and the valence state of the complex[FeCln]^(3−n) was lower with an increase of chloride concentration,which restricts the extraction efficiency of iron with P204.The extraction of three stages in the counter-current simulation experiments was carried out according to the McCabe-Thiele diagram.Gibbs free energy change(ΔG)of−5.93 kJ/mol,enthalpy change(ΔH)of 23.45 kJ/mol and entropy change(ΔH)of 98.54 J/(mol·K)were obtained in the solvent extraction proces,which indicate that the extraction reaction is easily spontaneous and endothermic and a proper increase of temperature is conducive to the extraction of scandium. 展开更多
关键词 SCANDIUM selective extraction D2EHPA/sodium chloride leaching solution red mud
下载PDF
Effects of Surfactant on Zinc Recovery by Solvent Extraction during Leaching in HCl-FeCl_3 Solution 被引量:1
15
作者 卢立柱 康晓红 谢慧琴 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2002年第1期109-111,共3页
The effects of surfactant on the solvent extraction in leachingsphalerite were investigated. It is found that sodium dodecylsulfonate is the effective surfactant in improving the zinc recoveryfrom sphalerite in the aq... The effects of surfactant on the solvent extraction in leachingsphalerite were investigated. It is found that sodium dodecylsulfonate is the effective surfactant in improving the zinc recoveryfrom sphalerite in the aqueous FeCl_3-HCl-tetrachloroethylene system.Through the measurements of surface tension and viscosity of thesphalerite Slurry modified with different surfactants, it isconcluded that sodium dodecyl sulfonate in the concentration rang Of0.05 to 0.2 g·L^-1 can improve the viscosity of sphalerite slurry inthe water, decrease the surface tension of Leaching solution, preventthe aggregation of ore particles, and give very high zinc extraction. 展开更多
关键词 SURFACTANT ZINC solvent extraction LEACHING
下载PDF
Oxygen pressure acid leaching of Gacun complex Cu concentrates
16
作者 XU Bin ZHONG Hong JIANG Tao 《Journal of Central South University》 SCIE EI CAS 2012年第1期71-76,共6页
The treatment of the Gacun complex Cu concentrate with high contents of Pb,Zn,Ag,etc by oxygen pressure acid leaching was studied.It is unusual that tetrahedrite,whose treatment was rarely studied,is the primary coppe... The treatment of the Gacun complex Cu concentrate with high contents of Pb,Zn,Ag,etc by oxygen pressure acid leaching was studied.It is unusual that tetrahedrite,whose treatment was rarely studied,is the primary copper mineral of the concentrates.Most of silver also occurs in the mineral.The optimum operating parameters of oxygen pressure acid leaching were established by conditional tests.Pilot scale test was carried out under the parameters,and the leaching rates of copper and zinc are as high as 97.10% and 89.83% while lead and silver are transformed into sulfate and sulfide respectively and stay in leaching residue.The copper and zinc in lixivium were reclaimed by extraction-electrowinning and purification-electrowinning,respectively,and the lead and silver in the residue were reclaimed separately by chloride leaching and thiourea leaching.The extraction rate of copper achieves 96%,and the leaching rates of lead and silver reach 90% and 95%,respectively. 展开更多
关键词 complex Cu concentrates oxygen pressure acid leaching synthetic reclaiming TETRAHEDRITE
下载PDF
低品位铜湿法冶炼的现状及发展形势
17
作者 楼江鹏 《中国金属通报》 2021年第14期3-4,共2页
伴随铜矿石开采品味不断降低,难以处理的矿石逐渐增加,矿石处理不恰当对人们赖以生存的环境带来了比较多的污染。文章结合我国铜资源开采利用和生产加工实际情况,就浸出-萃取-电积技术在低品位铜矿中提取、冶炼铜的问题进行探究。
关键词 低品位 铜矿 湿法冶炼 --电积技术
下载PDF
Dissolution kinetics of copper from multi-metal copper alloy roasted in oxygen
18
作者 卢伟红 尹周澜 +1 位作者 丁治英 刘洋 《Journal of Central South University》 SCIE EI CAS CSCD 2017年第2期335-340,共6页
A kinetic study on the sulfuric acid leaching of multi-metal oxide, which is the product of multi-metal copper alloy with iron trioxide roasted in oxygen, was carried out. The effects of leaching time, stirring speed,... A kinetic study on the sulfuric acid leaching of multi-metal oxide, which is the product of multi-metal copper alloy with iron trioxide roasted in oxygen, was carried out. The effects of leaching time, stirring speed, sulfuric acid concentration, reaction temperature, and particle size of the multi-metal oxide on the kinetics and mechanism of copper extraction were studied. It was found that the reaction kinetic model about the copper extraction from multi-metal oxide follows the mixed kinetic shrinking core mode: 1/31n(1-X)+(1-X)-l/3-1=680.5C(H2SO4)0.4297dp0.75115exp(-Ea/RT)t. 展开更多
关键词 leaching kinetic multi-metal copper alloy ROASTING
下载PDF
加压生产线处理托克硫化镍原料的生产实践
19
作者 张雯雯 李瑞基 吕钦 《金川科技》 2020年第1期27-29,共3页
某厂加压浸出-萃取-电积生产线目前大量处理托克硫化镍原料,该原料成分与设计原料成分有较大差距,容易板结,且该原料含铅、锌、钙、硫杂质较高,基本不含铜,进入生产系统对电积生产线稳定控制、净化除杂提出严峻考验。车间积极开展实验... 某厂加压浸出-萃取-电积生产线目前大量处理托克硫化镍原料,该原料成分与设计原料成分有较大差距,容易板结,且该原料含铅、锌、钙、硫杂质较高,基本不含铜,进入生产系统对电积生产线稳定控制、净化除杂提出严峻考验。车间积极开展实验室小试试验及工业化试验工作,通过优化现场配置及调整原料配比、调整生产工艺技术条件控制等措施,逐步摸索出了一套适合多种复杂原料搭配处理的工艺路线,保证了电积镍产量、质量及各项经济技术指标的完成。 展开更多
关键词 加压--电积生产线 托克硫化镍 工艺过程 经济技术指标
原文传递
科技博览
20
《金川科技》 2004年第3期74-77,共4页
有色金属生产与节能降耗,羰基镍热分解技术,寻找铜、镍、钴和贵金属隐伏矿技术,原地浸出技术,低品位和难处理铜矿的大型浸出-萃取-电积技术。
关键词 --电积 科技 节能降耗 有色金属 分解技术 技术 生产技术 选矿药剂 羰基镍 隐伏矿 贵金属 低品位 铜矿
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部