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Removing aluminum from a low-concentration lixivium of weathered crust elution-deposited rare earth ore with neutralizing hydrolysisXian-Ping Luo1,2,3,4,Li-Ping Zou1,Pei-Long Ma1,Cai-Gui Luo1,Jing...">Aluminum,the main impurity in the lixivium of weathered crust elution deposited rare earth ore,not only results in an increasing consumption of precipitant in the rare earth precipitation process......
lixivium HE Jing(何静), TANG Mo-tang(唐谟堂), ZHOU Cun(周存), WU Sheng-nan(吴胜男), CHEN Yong-ming(陈永明), WANG Tao(王涛), HUANG Ling(黄玲) School of Metallurgical Science and Engineering, Central South University... for soft magnetic ferrite material was developed. Using reduction lixivium from high-acid reductive leaching of zinc oxide calcine as raw solution, copper and indium were firstly recovered by iron powder......
University, Changsha 410083, China) Abstract: Titanium hydrolysate and iron-rich lixivium were obtained from the ilmenite by mechanical activation and hydrochloric acid leaching. By using H2O2 as a coordination agent, titanium was leached from the titanium-slag and a coordination lixivium was obtained. A nano-sized platelike peroxo-titania compound was prepared by heating the coordination......
.% and 94.9 wt.%,while lead and silver were transformed into sulfate and sulfide precipitations,respectively.The copper and zinc in lixivium were reclaimed by extraction-electrowinning and purification......
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and manganese ions in the lixivium are also separated from nickel and cobalt by using PC-88A extractant system, and the organic phase loaded rare earth is stripped with hydrochloric acid. By neutralizing... in the range of 3.0-3.5, the rare earth elements in the lixivium can be extracted completely into the organic phase, and the stripping recovery of the rare earth can reach 98% in the extraction stage......
the vanadium from the H2SO4lixivium. Extracting rate of vanadium (ERV) greatly depends on iron powder concentration, pH, diisooctyl phosphate (P204) content, volume ratio of extractant to H2SO4 lixivium......
of solid to liquid, and the concentration of Si, Fe, Cd, Pb in lixivium is low. The optimum leaching conditions are found to be the total ammonia concentration 3 mol/L, pH 9.60, ratio of solid to liquid 4, and the leaching time 4 h. More than 90% of zinc is extracted, and pH of lixivium is less than 9.0 in the two-stage counter-current process, which satisfies the requirement of the subsequent solvent......
of 2.2 μm and an average pore size of 3.10 nm is then regenerated from the lixivium, indicating its suitability for use as a catalyst carrier. The recovery and regeneration of alumina from spent......
into lixivium as leaching agent in the experiment. Based on physical chemistry and seepage flow mechanics, the leaching mechanics of surfactant was analyzed. The solution surface tension and surfactant... on physical chemistry, mass transfer and dynamic action, solution mining is a mining method which uses leaching reagent to dissolve useful components in ore from solid into lixivium and then extract metal......
