共搜索到8682条信息,每页显示10条信息,共869页。用时:0小时0分0秒374毫秒
Extraction and back-extraction behaviors of 14 rare earth elements from sulfuric acid medium by TODGAHuiting Yuan1,Weixiang Hong1,Yushan Zhou1,Baisong Pu1,Aijun Gong1,Qishan Yang3,Fukai Li1,Lina... earth elements by TODGA were studied. Experiments show that in conditions of 6 mol/L sulfuric acid, the extraction temperature of 25 ℃,the phase ratio of 1:1 and 0.04 mol/LTODGA(aviation kerosene......
Extraction and back-extraction behaviors of 14 rare earth elements from sulfuric acid medium by TODGAHuiting Yuan1,Weixiang Hong1,Yushan Zhou1,Baisong Pu1,Aijun Gong1,Qishan Yang3,Fukai Li1,Lina... earth elements by TODGA were studied. Experiments show that in conditions of 6 mol/L sulfuric acid, the extraction temperature of 25 ℃,the phase ratio of 1:1 and 0.04 mol/LTODGA(aviation kerosene......
Synergistic extraction of rare earth by mixtures of 2-ethylhexyl phosphoric acid mono-2-ethylhexyl ester and di-(2-ethylhexyl) phosphoric acid from sulfuric acid medium黄小卫,李建宁,龙志奇,张永奇,薛向欣,朱兆武摘 要:The extraction of Nd3+ and Sm3+, including the extraction and stripping capability as well as the separation effect of Nd3+ or Sm3+, from a sulfuric acid medium......
Ultrasound effects on zinc recovery from EAF dust by sulfuric acid leachingK.Brunelli,M.DabalàDepartment of Industrial Engineering, University of Padua摘 要:sulfuric acid concentrations(0.2–2.0 M) at two temperatures(323 and 353 K) was performed. The tests were conducted using both conventional and ultrasound-assisted leaching. After the leaching tests......
ratio of pulverized coal to cyanide tailings 13% and reduction time 100 min. Fe2O3 in the cyanide tailings is turned into Fe3O4 or FeO. The reduced cyanide tailings were leached by sulfuric acid under conditions of a concentration of sulfuric acid 50%,the sulfuric acid dosage coefficient 1.2,leaching temperature 105 ℃ and leaching time 3 h. The leaching rate of Fe is 93.66%. The leaching rate of Au......
Synergistic extraction of rare earths by mixture of HDEHP and HEH/EHP in sulfuric acid medium张永奇,李建宁,黄小卫,王春梅,朱兆武,张国成摘 要:The extraction of RE(III) (RE=La, Nd, Sm, Gd) in sulfuric acid medium using the mixture of HDEHP(H2B2) and HEH/EHP(H2L2) was investigated. The synergistic enhancement coefficient(R) was calculated for La (1.96), Nd(3.52), Sm(5.96......
–Mg co-deposition and addition of HF acid in electrolyte [J]. Electrochimica Acta, 2008, 53(5): 2501-2506. [9] ZHANG S S. Role of LiNO3 in rechargeable lithium/sulfur battery [J]. Electrochimica Acta... J. Cent. South Univ. (2018) 25: 719-728 DOI: https://doi.org/10.1007/s11771-018-3776-x Influence of CsNO3 as electrolyte additive on electrochemical property of lithium anode in rechargeable......
Sulfuric acid leaching of low-grade refractory tantalum–niobium and associated rare earths minerals in Panxi area of ChinaBiao Wu,He Shang,Jian-Kang WenNational Engineering Laboratory... and sulfuric acid leaching. The influence of mineralogy, acid concentration, leaching temperature, leaching time, and liquid to solid ratio was experimentally studied. It is observed that after the ground ore......
of copper from sulfate electrolyte in presence of sulfurous acid [J]. Hydrometallurgy, 2001, 59(1): 55-67. [11] QIU Yong-hai, TANG Ren-heng, CHEN Bai-zhen. Evolution potential of arsine [J]. The Chinese... Novel technology of purification of copper electrolyte XIAO Fa-xin(肖发新)1, ZHENG Ya-jie(郑雅杰)1, WANG Yong(王 勇)1, 2, XU Wei(许 卫)1, 2, LI Chun-hua(李春华)1, 2, JIAN Hong-sheng(简洪生)1, 2 1. School......
in 30%-50% (volume fraction) HNO3 at room temperature for 1 min, and finally rinsing thoroughly in deionized water. The anodizing was processed in different boric/sulfuric acid electrolyte systems (B0... Trans. Nonferrous Met. Soc. China 22(2012) 1655-1660 Effects of boric acid on microstructure and corrosion resistance of boric/sulfuric acid anodic film on 7050 aluminum alloy DU Nan, WANG Shuai......