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on adsorption equilibrium, kinetics and elution efficiency were carried out to evaluate the performance of CL-P204. Column operations for extraction and separation of Fe(Ⅲ) by CL-P204 were performed for further...Extraction and separation of Fe(Ⅲ) from heavy metal wastewater using P204 solvent impregnated resinQi Sun,Li-Mei Yang,Li Zhang,Song-Tao Huang,Zheng XuNational Engineering Laboratory......
]. Renew Sustain Energy Rev, 2010, 14: 3059-3067. [17] HUNG T C, WANG S K, KUO C H, PEI B S, TSAI K F. A study of organic working fluids on system efficiency of an ORC using low- grade energy sources [J......
; (5) 2.1.1 Na2S浓度的影响 图5所示为Na2S浓度对Te,Sb浸出率的影响.固定条件为浸出温度50 ℃,浸出时间1 h,液固比10. 图5 Na2S浓度对Te,Sb浸出率的影响 Fig. 5 Effect of Na2S concentration on leaching efficiency of tellurium...所述,确定Na2S浓度为40 g/L. 2.1.2 浸出温度的影响 图6所示为浸出温度对Te,Sb浸出率的影响.固定条件为Na2S浓度40 g/L,浸出时间1 h,液固比10. 图6 浸出温度对Te,Sb浸出率的影响 Fig. 6 Effect of leaching temperature on leaching efficiency......
, in the presence of iron(Ⅲ)/thiourea at 20-50 ℃ in this ionic liquid [7, 26]. Extension of n-alkyl chain length in imidazolium cation resulted in decreasing extraction efficiency of gold...)-sulfonyl]amides as solvents. CHUN et al [30] observed the low extraction efficiency of competitive alkali metal salt from aqueous in CnmimPF6 (n=4-9). The high extraction efficiency appears when......
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Introduction Gold is highly contaminated and encapsulated in sulfide matrix in refractory gold ores, and the extraction efficiency of gold by direct cyanidation leaching is low because...Trans. Nonferrous Met. Soc. China 27(2017) 1888-1895 Mineralogical characterization and pretreatment for antimony extraction by ozone of antimony-bearing refractory gold concentrates Xue-yi GUO1,2......
. 6 Effect of Fe2+ concentration on current efficiency and electrolytic iron purity 图7 不同Fe2+浓度下电解铁的XRD谱 Fig. 7 XRD patterns of electrolytic iron at different Fe2+ concentration 3.2... 4.5 图8 pH对电流效率和电解铁纯度的影响 Fig. 8 Effect of pH value on current efficiency and electrolytic iron purity 图9 不同pH值下电解铁的XRD谱 Fig. 9 XRD patterns of electrolytic iron......
A review of gold extraction using noncyanide lixiviants: Fundamentals,advancements, and challenges toward alkaline sulfur-containing leaching agentsChun-bao Sun1,2,Xiao-liang Zhang1,Jue Kou1,2,Yi... sulfur-containing lixiviants, including thiosulfate, polysulfides, and alkaline sulfide solutions, stand out as a promising class of alternatives to cyanide because of their low toxicity, high efficiency......