国家自然科学基金(51204210)

作品数:9被引量:60H指数:5
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相关作者:韩俊伟刘维覃文庆郑永兴孔燕更多>>
相关机构:中南大学更多>>
相关期刊:《矿冶工程》《矿产保护与利用》《Journal of Central South University》《Rare Metals》更多>>
相关主题:还原焙烧锌焙砂铁酸锌浮选更多>>
相关领域:矿业工程冶金工程环境科学与工程化学工程更多>>
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Cleaning of high antimony smelting slag from an oxygen-enriched bottom-blown by direct reduction被引量:2
《Rare Metals》2019年第8期800-804,共5页Hong-Lin Luo Wei Liu Wen-Qing Qin Yong-Xing Zheng Kang Yang 
financially supported by the National Natural Science Foundation of China(No.51204210);the National High Technology Research and Development Program of China(No.2011AA061001);the National "Twelfth Five-Year" Plan for Science and Technology(No.2012BAC12B04)
Cleaning of high antimony smelting slag from an oxygen-enriched bottom-blown was tested by direct reduction in a laboratory-scale electric furnace.The effects of added CaO,mass ratio of coal(experimental)to coal(theor...
关键词:HIGH ANTIMONY SLAG Direct CLEANING reduction Gold 
Reduction of lead sulfate to lead sulfide with carbon monoxide被引量:3
《Journal of Central South University》2015年第8期2929-2935,共7页郑永兴 刘维 覃文庆 焦芬 韩俊伟 杨康 罗虹霖 
Project(51204210)supported by the National Natural Science Foundation of China;Project(2011AA061001)supported by the National High Technology Research and Development Program of China;Project(2012BAC12B04)supported by the National Science and Technology Pillar Program during the Twelfth Five-Year Plan of China
In order to decrease the solubility of PbSO4 and enhance lead recovery from PbSO4 bearing wastes, CO was employed as a reductant to transform PbSO4 into Pb S. Reaction system was established and reductive thermodynami...
关键词:lead sulfate REDUCTION carbon monoxide lead sulfide PYROMETALLURGY 
Sulfidation roasting of lead and zinc carbonate with sulphur by temperature gradient method被引量:7
《Journal of Central South University》2015年第5期1635-1642,共8页郑永兴 刘维 覃文庆 焦芬 韩俊伟 杨康 罗虹霖 
Project(51204210)supported by the National Natural Science Foundation of China;Project(2011AA061001)supported by the High-Tech Research and Development Program of China;Project(2012BAC12B04)supported by the National Science&Technology During the12th Five-Year Plan Period,China
In order to enhance the lead and zinc recovery from the refractory Pb-Zn oxide ore, a new technology was developed based on sulfidation roasting with sulphur by temperature gradient method. The solid-liquid reaction s...
关键词:lead and zinc carbonate SULPHUR ROASTING temperature gradient PYROMETALLURGY 
Mechanism of stibnite volatilization at high temperature被引量:3
《Journal of Central South University》2015年第3期868-873,共6页覃文庆 罗虹霖 刘维 郑永兴 杨康 韩俊伟 
Project(51204210) supported by the National Natural Science Foundation of China;Project(2011AA061001) supported by the National High Technology Research and Development Program of China;Project(2012BAC12B04) supported by the National Science&Technology Pillar Program during Twelfth Five-Year Plan of China
The volatilization of stibnite(Sb2S3) in nitrogen from 700 to 1000 °C was investigated by using thermogravimetric analysis. The results indicate that in inert atmosphere, stibnite can be volatilized most efficiently ...
关键词:stibnite volatilization nitrogen thermogravimetric analysis 
低品位氧化锌矿硫化焙烧回收锌工艺研究被引量:10
《矿冶工程》2014年第3期85-89,共5页孔燕 刘维 覃文庆 郑永兴 韩俊伟 
国家自然科学基金资助项目(51204210);国家高技术研究发展计划资助项目(2011AA061001);国家"十二五"规划资助项目(2012BAC12B04)
以黄铁矿为硫化剂,云南低品位氧化锌矿为研究对象,采用硫化焙烧使氧化锌和黄铁矿发生反应,生成硫化锌,然后用硫化矿的常规浮选工艺回收锌。试验考察黄铁矿用量、焙烧温度、焙烧时间对硫化效果的影响。研究结果表明:在黄铁矿用量为25%、...
关键词:氧化锌矿 黄铁矿 硫化焙烧 浮选 
高铁锌焙砂选择性还原焙烧-两段浸出锌被引量:19
《中国有色金属学报》2014年第2期511-518,共8页韩俊伟 刘维 覃文庆 柴立元 郑永兴 杨康 
国家自然科学基金资助项目(51204210);国家高技术研究发展计划资助项目(2011AA061001);国家"十二五"科技支撑计划资助项目(2012BAC12B04)
采用还原焙烧将高铁锌焙砂中的铁酸锌选择性地分解为氧化锌和磁铁矿,再通过两段浸出工艺回收锌,以实现锌铁分离和获得以磁铁矿为主的浸出渣。主要考察了还原焙烧、中性浸出及低酸浸出条件对锌焙砂中锌、铁浸出率的影响。结果表明:通过...
关键词:高铁锌焙砂 铁酸锌 还原焙烧 浸出 
鼓风炉水淬铅冶渣的矿物特征被引量:3
《中国有色金属学报》2014年第1期262-268,共7页覃文庆 郑永兴 刘维 孔燕 韩俊伟 罗虹霖 刘三军 
国家自然科学基金资助项目(51204210);国家"十二五"科技支撑计划资助项目(2012BAC12B04)
通过X射线衍射分析、扫描电子显微镜、热重差热分析仪以及化学分析对铅冶炼渣进行系统矿物特征研究。结果表明:铅冶炼渣中主要金属矿物为硅锌矿、锌黄长石、锌铁尖晶石、方铁矿以及金属铅。锌元素高度分散在玻璃渣相中,其中锌在硅酸盐中...
关键词:铅冶炼渣   金属回收 矿物特征 
硫化焙烧法回收高炉含锌粉尘中的锌被引量:5
《矿产保护与利用》2013年第2期34-38,共5页孔燕 刘维 覃文庆 郑永兴 韩俊伟 
国家自然科学基金资助项目(51204210);国家高技术研究发展计划资助项目(2011AA061001);国家"十二五"规划资助项目(No.2012BAC12B04)
以硫磺为硫化剂对某钢铁厂高炉粉尘采用硫化焙烧技术,使高炉粉尘中的氧化锌转变为硫化锌,并用浮选法回收锌。试验主要考察了预热时间、反应时间、反应温度、硫磺用量对锌回收的影响。试验结果表明,最佳工艺参数为:预热温度400℃,...
关键词:高炉粉尘 硫磺 硫化焙烧 浮选  
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