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of Chemical Engineering,China University of Petroleum,Beijing摘 要:The practice of in-situ leaching of the ion-adsorption type rare earths ore with ammonium sulfate...Reduction leaching of rare earth from ion-adsorption type rare earths ore with ferrous sulfate肖燕飞1,2,3,冯宗玉1,2,黄莉1,2,3,黄小卫1,2,陈迎迎5,龙志奇1,21. National Engineering Research Center for Rare Earth......
. Under this condition, the mass transfer efficiency of RE was improved, but no change was observed for Al compared with the most widely used ammonium sulfate. Moreover, the significant difference value...Process optimization of rare earth and aluminum leaching from weathered crust elution-deposited rare earth ore with compound ammonium salts何正艳1,张臻悦1,余军霞2,徐志高2,池汝安21. School of Minerals Processing......
. Under this condition, the mass transfer efficiency of RE was improved, but no change was observed for Al compared with the most widely used ammonium sulfate. Moreover, the significant difference value...Process optimization of rare earth and aluminum leaching from weathered crust elution-deposited rare earth ore with compound ammonium salts何正艳1,张臻悦1,余军霞2,徐志高2,池汝安21. School of Minerals Processing......
Preparation of lead sulfate powder directly from galena concentrates QIN Wen-qing(覃文庆), LIU Hui(刘 辉), TANG Shuang-hua(唐双华), SUN Wei(孙 伟) School of Resources Processing... to prepare the lead sulfate powder. Key words: lead sulfate; galena; preparation; leaching; purification ......
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Precipitation transformation of rare earth sulfate into chloride with p-dodecylphenoxy carboxylic acidsYanliang Wang1,Jia Su1,2,Xiangguang Guo1,Jianguo Cui3,Yan Bai4,Fujian Li1,5,Xiaoqi Sun1,51. CAS... of Sciences摘 要:Methods for transforming rare earth(RE) sulfate into chloride mainly include extraction process with organophosphonic mono-acids or aliphatic......
Precipitation transformation of rare earth sulfate into chloride with p-dodecylphenoxy carboxylic acidsYanliang Wang1,Jia Su1,2,Xiangguang Guo1,Jianguo Cui3,Yan Bai4,Fujian Li1,5,Xiaoqi Sun1,51. CAS... of Sciences摘 要:Methods for transforming rare earth(RE) sulfate into chloride mainly include extraction process with organophosphonic mono-acids or aliphatic......
)3. 图5 硫酸铵焙烧低品位氧化锌矿的TG-DTA曲线 Fig. 5 TG-DTA curves of low grade zinc oxide ore roasted by ammonium sulfate 可见,TG-DTA曲线上,50 ℃的吸热峰为吸附水脱除；290 ℃的吸热峰涉及ZnCO3和硫酸铵的分解,锌和铁化合物与硫酸铵的反应等；330 ℃的吸热峰涉及碳酸盐的... ammonium bisulfate[J]. The Chinese Journal of Nonferrous Metals, 2013, 23(2): 510-515. [19] SONG X F, ZHAO J C, LI Y Z, SUN Z, YU J G. Thermal decomposition mechanism of ammonium sulfate catalyzed......
, Changsha 410083, China) Abstract: Stripping solution of Lanping zinc oxide ore was simulated with zinc sulfate and sulphuric acid. The effect of ammonium nitrogen and organic impurities such as 260...；电积；电流效率 中图分类号:TF813 文献标志码:A 文章编号:1672-7207(2011)09-2589-06 Effect of ammonium nitrogen and organic......
Extraction of cobalt from laterite ores by citric acid in presence of ammonium bifluoride LI Guang-hui(李光辉),RAO Ming-jun(饶明军), LI Qian(李 骞), PENG Zhi-wei(彭志伟), JIANG Tao(姜 涛)1 School... in the presence of ammonium bifluoride. The results show that ammonium bifluoride enhances the leaching of cobalt by citric acid, and 84.5% cobalt is extracted from a laterite ore containing 0.13% Co......
