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Optimization of selective copper extraction from chalcopyrite concentrate in presence of ammonium persulfate and ammonium hydroxideMehmet Deniz TuranDepartment of Metallurgical and Materials Engineering,F?rat University摘 要:The dissolution of copper and iron from chalcopyrite concentrate in the presence of ammonium persulfate(APS) and ammonium hydroxide......
of decomposition of ammonium jarosite bearing indium in NaOH medium CHEN Yong-ming, TANG Mo-tang, YANG Sheng-hai, HE Jing, TANG Chao-bo, YANG Jian-guang, LU Jun-yue (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: The decomposition of ammonium jarosite bearing indium in NaOH medium were studied. The effects of NaOH addition, liquid-solid ratio......
Luminescence modification of Eu3+-activated molybdate phosphor prepared via co-precipitation赵春雷,胡运生,庄卫东,黄小卫,何涛摘 要:Eu-activated CaMoO4 phosphors were co... to compare their host absorption. The result showed that the scheelite molybdate host exhibited stronger UV absorption than wolframite one.关键词:......
Luminescence modification of Eu~(3+)-activated molybdate phosphor prepared via co-precipitation HUANG Xiaowei1,HE Tao1,ZHAO Chunlei1,ZHUANG Weidong1,HU Yunsheng1 (1.National Engineering Research... selected to compare their host absorption. The result showed that the scheelite molybdate host exhibited stronger UV absorption than wolframite one. Key words:CaMoO4; ZnMoO4; europium; samarium; red......
Synthesis and Properties of Eu3+ Activated Strontium Molybdate Phosphor李旭,杨志平,关丽,郭庆林,怀素芳,李盼来摘 要:In order to prepare fluorescent material for white Light Emitting Diodes (LEDs), a new Eu3+ activated molybdate phosphor SrMoO4 was fabricated with solid-state method. X-ray diffraction (XRD) showed that the doping of trivalent europium ion reduced......
Optimization of preparing V2O5 by calcination from ammonium metavanadate using response surface methodology LIU Bing-guo1, 2, PENG Jin-hui1, 2, WAN Run-dong1, 2, ZHANG Li-bo1, 2, GUO Sheng-hui1, 2... by calcination from ammonium metavanadate were optimized using central composite design of response surface methodology. A quadratic equation model for decomposition rate was built and effects of main......
Trans. Nonferrous Met. Soc. China 27(2017) 2492-2502 Removal of tungsten from molybdate solution by Fe-Mn binary oxide adsorbent Yun-feng SONG1, Li-hua HE1,2, Xing-yu CHEN1, Zhong-wei ZHAO1 1. School... to separate W from molybdate solution, respectively. The experimental results demonstrated that Fe-Mn binary oxide (FMBO) was the most suitable adsorbent for the separation. Under a wide pH (6.9-11.3......
Recovering germanium from coal ash by chlorination with ammonium chlorideZHU Guocai, SHI Wenzhong, and TIAN Jun Institute of Nuclear Energy Technology, Tsinghua University, Beijing 102201, China..."><正>A new process of enriching germanium from coal ash was developed. The process involves in mixing the coalash and ammonium chloride and then roasting the mixture to produce germanium chloride......
Hydrothermal synthesis of mixed rare earth-alkali metal or ammonium fluorides由芳田,黄世华,时秋峰Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University摘 要:The recent results on hydrothermal synthesis of mixed rare earth-alkali or ammonium fluorides were presented......
Hydrothermal synthesis of mixed rare earth-alkali metal or ammonium fluorides由芳田,黄世华,时秋峰Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University摘 要:The recent results on hydrothermal synthesis of mixed rare earth-alkali or ammonium fluorides were presented......
