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Decomposition process of bastnaesite concentrate in NaOH-CaO-H2O systemJiang Liu,Ting’an Zhang,Zhihe Dou,Yan Liu,Guozhi Lv摘 要:A novel process of calcification-leaching for bastnaesite concentrate(REFCO3) was proposed. The prior calcification was carried out in the system of NaOH-CaO-H2O and the lgC-pH pattern for Ce-F-Ca-C-H2O system was drawn......
Decomposition process of bastnaesite concentrate in NaOH-CaO-H2O systemJiang Liu,Ting’an Zhang,Zhihe Dou,Yan Liu,Guozhi Lv摘 要:A novel process of calcification-leaching for bastnaesite concentrate(REFCO3) was proposed. The prior calcification was carried out in the system of NaOH-CaO-H2O and the lgC-pH pattern for Ce-F-Ca-C-H2O system was drawn......
Decomposition process of zircon sand concentrate with CaO-NaOHZHANG Jiandong a,WANG Lijun a,and JIANG Dongmin b a Division of Mineral Resources,Metallurgy & Materials,General Research Institute... sand concentrate using mixed base of sodium hydroxide partly replaced by calcium oxide was inrestigated.It is found that the decomposition rate of zircon gradually increased with the increase......
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Leaching of complex sulphide concentrate in acidic cupric chloride solutions M. TCHOUMOU1, M. ROYNETTE2 1. Faculty of Science, Marien Ngouabi University, Brazzaville, Congo; 2. Laboratory...; Abstract: The chemical analysis of a complex sulphide concentrate by emission spectrometry......
XPS characteristics of sulfur of bio-oxidized arsenic-bearing gold concentrate and changes of surface nature of bio-oxidation residue YANG Hong-ying(杨洪英), GONG En-pu(巩恩普), YANG Li(杨 立), CHEN... and the period of oxidation. The chemical state of sulfur in sulfides oxidized by leaching bacteria was studied with XPS. Sulfide minerals in the arsenic-bearing gold concentrate consist of pyrite......
Prediction of pre-oxidation efficiency of refractory gold concentrate by ozone in ferric sulfate solution using artificial neural networks LI Qing-cui, LI Deng-xin, CHEN Quan-yuan College... the oxidation of refractory gold concentrate (RGC) by ozone and ferric ions. The concentration of ozone and ferric ions, pulp density, oxygen amount, leaching time and temperature were employed as inputs......
cycle of arsenic-containing gold concentrate, surfactants were used to promote the interaction between bacteria and ore to increase the arsenic leaching rate. Three different kinds of surfactants were used to evaluate the effects of surfactants on the growth of bacteria and arsenic leaching rate of arsenic-containing gold concentrate. The mechanism underlying surfactant enhancement was also studied......
四川某铜铁矿选矿厂铁精矿提质降硫试验研究卢琳1,杨波1,朱运凡1(1.云南省昆明市昆明理工大学)摘 要:对四川某铜矿选矿厂副产品铁精矿进行提质脱硫研究试验,在试验流程中采用NH4NO3,H2SO4,CuSO4组合活化剂,获得了很好的选别效果.试验指标为铁精矿品位65.03%,含硫0.13%,铁精矿回收率84.15%.关键词:铁精矿; 脱硫; 反浮选......
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