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extraction raffinate by using TBP and 2-octanol as extractants[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(3): 775-784. DOI: 10.11817/j.ysxb.1004.0609.2021-37768 钽,铌是重要的稀有金属,具有熔点高,塑性好,耐腐蚀...究,并进一步研究了萃取剂对钽,铌和钨的萃取机理. 1 实验 1.1 实验原料 实验原料为钽铌矿经氢氟酸,浓硫酸分解,矿浆萃取后的残液,料液主要成分见表1. 表1 钽铌矿萃余液主要成分和含量 Table 1 Main components and contents of Ta/Nb extraction raffinate 1.2 试剂与......
:TF111.3 文献标志码:A 文章编号:1672-7207(2014)06-1772-06 Organic phase entrainment in aqueous raffinate..., China; 2.School of Environmental Science and Engineering,Donghua University,Shanghai 201620,China) Abstract: The entrainment of organic phase in the aqueous raffinate coming from copper solvent......
Trans. Nonferrous Met. Soc. China 30(2020) 3103-3113 Scandium recovery from raffinate copper leach solution as potential new source with ion exchange method H. HAJMOHAMMADI1, A. H. JAFARI1, M... Received 4 December 2019; accepted 14 September 2020 Abstract: Raffinate copper leach solution of the Iran Sarcheshmeh copper complex has up to 3 mg/L scandium (Sc), which is significantly better than......
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中有机相流失的主要形式. 图5 LIX984N酸降解对萃余液中有机相流失的影响 Fig. 5 Effect of LIX984N degradation on lost organic solvent in raffinate (LIX984N φ=2.5%, extract solution pH=2.0, O/A=1:1, t=10 min, θ=25 ℃) 萃余液中...使萃取后分相困难,分相速率明显降低(见图4). 图6 表面张力随有机相与酸接触时间的变化 Fig. 6 Changes of raffinate surface tension with contact time 3 结论 1) 羟肟萃取剂与无机酸的反应是降解的主要原因之一,酸降解使肟基结构破坏,生成许多相对分子量较小的物质.水解是羟肟萃取剂降解的途径之一......
the extraction efficiency by changing the distribution of copper–cyanide complexes. The difference in gold leaching efficiency between using raffinate and fresh water was negligible.关键词:......
organic stream,outgoing raffinate and an extra outgoing third exit stream either organic or aqueous.关键词:......
and0.2g/l copper were removed from the cobalt chloride anolyte containing about 100g/lcobalt and 200g/l chloride ions respectively, the raffinate contains nickel and copperless than 0.03g/l and 0. 0003g/l......
in the raffinate decreased to 63.24 g/L and raffinate can be favorably recycled to the etching solution. The stripping studies were carried out with the simulated copper spent electrolyte containing 30 g/L... concentration (ρCu) in raffinate was determined by iodimetry (calculated by Eq. (2)), and the copper concentration (ρCu, org) in the organic phase is calculated by mass balance Eq. (3). ......
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