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；钒浸出率 中图分类号:TF803.21 文献标志码:A Leaching vanadium from extracted vanadium residue of vanadium titanomagnetite DENG Zhi-gan, WEI Chang, LI Xing-bin... was leached by composed leaching reagent of sulphuric acid, hydrofluoric acid and sodium hypochlorite from extracted vanadium residues of vanadium titanomagnetite. The process parameters, which impact......
率达到95%左右,银的浸出率达到90%左右. 关键词:氧化锌贫矿；铅；银；提锌渣；氯盐；浸出 中图分类号:TF803 文献标志码:A Leaching of silver and lead by chloride simultaneously from residue after zinc extraction of low-grade zinc..., Shandong University of Technology, Zibo 255081, China) Abstract: According to the mineral analysis of the residue after zinc extraction of low-grade zinc oxide by XRD, SEM and EDS, the occurring state......
程简单,清洁,生产成本低,具有产业化前景. 关键词:高砷烟尘碱浸渣；硫化钠浸出；空气氧化；焦锑酸钠 中图分类号:TF09 文献标志码:A Novel technology for preparation of sodium pyroantimonate from alkali leaching residue of high arsenic... and air oxidation, was proposed to prepare sodium pyroantimonate from alkali leaching residue of high arsenic dust. The results show that the leaching efficiency of antimony is 84.81% under......
; 文章编号:1672-7207(2012)06-2048-06 Magnetic roasting of pressure leaching residue of nickel laterite and weak magnetic separation of iron concentrate GUO Xue-yi, GONG Qi-qi, SHI Wen-tang, LI Dong, TIAN Qing-hua (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: An acid leaching residue of nickel laterite......
, JU Shao-hua, CHEN Yong-ming. Study on reductive leaching of neutral leached residue in chloride system by high concentration acid and reductive agent at high temperature[J]. Hydrometallurgy of China... distribution rate of zinc neutral leaching residue 图2 中浸渣的XRD谱 Fig. 2 XRD pattern of zinc neutral leaching residue 1.2 实验及检测仪器 主要实验设备及仪器有:粒度分析仪(LS-POP(6),珠海欧美克)；强磁力回转高压反应釜(KCF-1L,威海景达)；电子......
; 文献标志码:A 文章编号:1672-7207(2011)05-1209-06 Thermodynamic analysis of chromite ore processing residue treatment in Na2CO3-CO2-H2O system LIU Wei... system of Na2CO3-CO2-H2O was employed to leach Cr(Ⅵ) in the chromite ore processing residue (COPR). The thermodynamic analysis was carried out and the effect of various leaching reagents on Cr(Ⅵ) leaching......
提钒尾渣常压酸浸提钒樊刚1,魏昶1,葛怀文1,李旻廷1,邓志敢1,李存兄1(1.云南省昆明市昆明理工大学材料与冶金工程学院)摘 要:针对提钒尾渣的矿物特点,通过加入氢氟酸破坏矿物结构后用高锰酸钾氧化溶解钒.结果表明,能把包裹钒的矿物破坏,促进钒的浸出,达到较理想的浸出效果.尾渣提钒不适宜两段浸出.最佳浸出条件为H2SO4浓度150g·L-1,HF浓度30g·L-1,KMnO4用量为3.33%,液固比L∶S=5∶1,浸出时间4h.在此条件下钒的浸出率可达82.86%. 关键词:冶金技术； 钒； 尾渣......
, PENG Ning, LEI Jie, LIU Qing, ZHANG Qiang, HU Ming. Physicochemical and calcination characteristics of manganese residue[J]. Journal of Central South University (Science and Technology), 2015, 46(7... of manganese and iron ions leaching from electrolytic manganese residue by acid reduction[J]. Bulletin of the Chinese Ceramic Society, 2017, 36(8): 2844-2849. [3] FENG L U, CHEN M, CHEN L L. Characteristics......
吉林省某矿含铅金银矿石浮选工艺试验研究郭宏1,邢洪波1,王学哲1,任洪胜1(1.吉林省长春市吉林省冶金研究院)摘 要:对吉林省某矿含铅金银矿石进行了浮选工艺试验研究.根据矿石性质,针对矿石中金,银,铅品位较低的特点,试验采用原矿混合浮选-精矿氰化-浸渣浮选铅工艺流程,获得回收率:金83.80%,银51.19%,铅77.91%,硫73.59%.采用该工艺流程可实现就地产金银,同时综合回收铅硫.关键词:含铅金银矿石； 浮选； 氰化； 浸渣； 铅； 金......
residue (mass fraction, %) 1.2 多孔陶粒的制备 按一定配比称取硅藻土,钨渣,助烧剂和造孔剂后,充分混匀,加入少量去离子水湿混造粒(粒径为2~8 mm),经陈化烘干后,于烧结炉中烧结成型,后随炉冷却,制得陶粒样品备用. 1.3 试验样品表征 采用TM3030型扫描电子显微镜观察陶粒样品的外观形貌与结构.采用Empyrean型X射线粉末衍射仪(Cu靶,Kα... of ceramsite sample 表2 多孔陶粒浸出毒性物质及其含量 Table 2 Toxic elements and their contents leached from porous ceramsite 由表2可知,陶粒的浸出毒性物质浓度均符合国标要求,该陶粒可应用于氨氮废水处理. 2.2 陶粒吸附去除溶液中氨氮的影响因素分析 2.2.1 溶液初始......
