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precipitation; high iron sphalerite; zinc sulfate; magnesium sulfate 随着锌矿资源的不断开发利用,高品质锌资源逐渐枯竭,高铁闪锌矿的开发利用引起人们的广泛关注.因其在选矿过程中无法将铁分离导致产出的锌精矿含铁高(>10%),含锌低(<45%)[1].在湿法炼锌过程中,铁以各种化合物形式进入渣中被除去.选择不同的除铁方法会影响到锌的... Metallurgical Quarterly, 1977, 16(1): 111-117. [8] DREISINGER D B, PETERS E. The oxidation of ferrous sulfate by molecular oxygen under zinc pressure-leach conditions[J]. Hydrometallurgy, 1989, 22(1......
Engineering, 2010, 23(7): 563–566. [2] SUN Yi, SHEN Xiao-yi, ZHAI Yu-chun. Thermodynamics and kinetics of extracting zinc from zinc oxide ore by ammonium sulfate roasting method [J]. Int J Miner Metall..., HU Hui-ping, LI Jian, LIANG Qi-wen, LING Jiang-hua. Synergistic extraction of zinc from ammoniacal ammonia sulfate solution by a mixture of a sterically hindered beta-diketone and tri-n-octylphosphine......
of Cu(II) ions (ρ(Cu2+)0), Cd(II) ions (ρ(Cd2+)0), dosage of zinc dust, temperature and stirring speed on the rate of cobalt removal and the purities of the zinc sulfate solution were examined. The results show that adding a certain amount of Cu(II) ions not only increases the cobalt removal rate together with the purities of zinc sulfate solution, but also saves the dosage of zinc dust used......
, which increases the burden of rotary kiln and reduces the zinc recovery[12]. The hot acid jarosite method is mostly used for the calcine leaching of zinc sulfate but a great deal of manganese powder... Leaching and recycling of zinc from liquid waste sediments PENG Bing(彭 兵), GAO Hui-mei(高慧妹), CHAI Li-yuan(柴立元), SHU Yu-de(舒余德) School of Metallurgical Science and Engineering, Central South......
Engineering, 2008, 21: 23-30. [2] ?OPUR M, ?ZMETIN C, ?ZMETIN E, KOCAKERIM M M. Optimization study of the leaching of roasted zinc sulphide concentrate with sulfate acid solutions [J]. Chemical Engineering... E-pH diagram of ZnS-H2O system during high pressure leaching of zinc sulfide MU Wang-zhong(牟望重), ZHANG Ting-an(张廷安), LIU Yan(刘 燕), GU Yan(古 岩), DOU Zhi-he(豆志河), L? Guo-zhi(吕国志), BAO Li(鲍 丽......
, CHEN Yong-ming (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: A new ammonium sulfate leaching process for extracting zinc from fuming furnace dust was proposed. Using fuming furnace dust from Zhuzhou Smelter Group Co. Ltd. as raw material, zinc leaching by an ammonium sulfate solution was investigated. The experimental results show......
. These methods could be classified into carbonate roasting-leaching [12-14], sulfate roasting- leaching [15] and chloride roasting-leaching [16]. But all of them focus on the recovery of zinc and left iron...J. Cent. South Univ. (2017) 24: 1082-1089 DOI: 10.1007/s11771-017-3511-z Comprehensive recovery of Fe, Zn, Ag and In from high iron-bearing zinc calcine PENG Bing(彭兵)1, 2, PENG Ning(彭宁)1, LIU Hui(刘恢......
Press Centre, 2012, 7: 201–210. [16] BOROVKOV G A, MONASTYRSKAYA V I. Voltammetric determination of cobalt(II) in zinc sulfate solution [J]. Russian Journal of Applied Chemistry, 2001, 74(8): 1310... J. Cent. South Univ. (2019) 26: 207-218 DOI: https://doi.org/10.1007/s11771-019-3994-x Selective determination of trace cobalt in zinc electrolytes by second-derivative catalytic polarography ZHU......
Indium recovery from zinc oxide flue dust by oxidative pressure leaching LI Xuan-hai(黎铉海)1, ZHANG Yan-juan(张燕娟)1, QIN Quan-lun(覃全伦)1, YANG Jian(阳 健)1, WEI Yan-song(韦岩松)2 1. School... 2009 ____________________________________________________________________________________________ Abstract: Indium was recovered from zinc oxide flue dust (ZOFD) with sulfuric acid by oxidative......
J. Cent. South Univ. Technol. (2009) 16: 0242-0246 DOI: 10.1007/s11771-009-0041-3 Recovery of copper sulfate after treating As-containing wastewater by precipitation method ZHENG Ya-jie(郑雅杰... As-containing wastewater till pH value was 6. Green copper arsenite was prepared after copper sulfate was added into the neutralized wastewater when the molar ratio of Cu to As was 2?1 and pH value......