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Alumina recovery from spent Bayer liquor by methanol ZHANG Ying(张 盈)1, 2, ZHENG Shi-li(郑诗礼)1, DU Hao(杜 浩)1, WANG Shao-na(王少娜)1, PENG Ying(彭 鹰)3, ZHANG Yi(张 懿)1 1. National Engineering... is the key step for alumina production; however, approximately only 55% alumina yield is obtained by seeded precipitation. So, it is difficult to obtain sodium aluminate solution with high caustic ratio......
Kinetics study of leaching arsenic from Ni-Mo ore roasting in dust mixture of hydrochloric and sulfuric acidsHOU Xiao-chuan(侯晓川)1, 2, YANG Yun-de(杨润德)1, LI He(李贺)1, ZENG-li(曾理)2, XIAO Lian-sheng(肖连生... of leaching arsenic from Ni-Mo ore roasting dust was investigated. The effects including leaching temperature, particle size of the smelter dust, stirring speed, the coef？cient β (the molar ratio of sodium......
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Kinetics of acid-oxygen leaching of low-sulfur Ni-Cu matte at atmospheric pressure FAN Chuan-lin(范川林), LI Bin-chuan(李斌川), FU Yan(符 岩), ZHAI Xiu-jing(翟秀静) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China Received 6 July 2009; accepted 5 January 2010 Abstract: The leaching of low-sulfur Ni-Cu matte in acid-oxygen (CuSO4-H2SO4-O2) solution......
Suspension calcination and alkali leaching of low-grade high-sulfur bauxite:Desulfurization, mineralogical evolution and desilicationHong-fei Wu1,2,Jun-qi Li1,2,Chao-yi Chen1,2,Fei-long Xia1,2,Zhen... was an alkali solution concentration of 110 g/L, a reaction time of 20 min, and a reaction temperature of 95°C. The corresponding desilication ratio and alumina loss ratio were 44.9% and 2.4......
J. Cent. South Univ. (2016) 23: 1312-1317 DOI: 10.1007/s11771-016-3181-2 Coordination leaching of tungsten from scheelite concentrate with phosphorus in nitric acid ZHANG Wen-juan(张文娟)1, YANG Jin... for tungsten extraction and recovery from scheelite is reported. The technology includes leaching scheelite using phosphoric acid as chelating agent in nitric acid solutions, extracting tungsten......
Kinetics and leaching behaviors of aluminum from pharmaceutical blisters in sodium hydroxide solutionWANG Chong-qing(王重庆)1, WANG Hui(王晖)1, GU Guo-hua(顾帼华)2, FU Jian-gang(符剑刚)1, LIU You-nian(刘又年) 1(1...)Abstract:A hydrometallurgical process was developed for recycling pharmaceutical blisters. Leaching aluminum from pharmaceutical blisters using sodium hydroxide (NaOH) solutions was investigated......
Aluminum production by carbothermo-chlorination reduction of alumina in vacuum YUAN Hai-bin(袁海滨)1, 2, 3, YANG Bin(杨 斌) 1, 2, 3, XU Bao-qiang(徐宝强) 1, 2, 3, YU Qing-chun(郁青春) 1, 2, 3, FENG Yue...; Abstract: Aluminum production by carbothermo-chlorination reduction of alumina in vacuum was investigated by XRD, SEM, EDS......
Leaching kinetics of molybdenum from Ni-Mo ore in sulfuric acid solution with sodium peroxodisulfate as oxidantLIU Zhi-xiong(刘志雄)1, YIN Zhou-lan(尹周澜)2, CHEN Yi-guang(陈义光)3, XIONG Li-zhi(熊利芝)3(1.... College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China)Abstract:The leaching kinetics of molybdenum from Ni-Mo ore in sulfuric acid solution with sodium......
