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Study on Escaping Fluorine Inhibition in Calcining Process of Mixed Rare Earth Concentrate吴志颖,吴文远,孙树臣,边雪,涂赣峰摘 要:GC technology was used to study escaping fluorine in calcined process of mixed rare earth concentrate. The mixed rare earth concentrate and it adding assistant of CaO-NaCl-CaCl2 were calcined at 400~750 ℃ for 30~120 min, and then total amount......
Study on Roasting Decomposition of Mixed Rare Earth Concentrate in CaO-NaCl-CaCl2吴文远,边雪,孙树臣,涂赣峰摘 要:<正>The decomposed process of bastnaesite, monazite and mixed rare earth concentrate in CaO-CaCl-CaCl2 was studied by means of TG-DTA method. The relationship among decomposition ratio, roasting temperature, and CaO-NaCl addition was studied......
Studies on Sulfating Roasting Process for Mianning Bastnasite and Baotou Mixed RE Concentrate Ore Miao Guangli1 (1.Gansu Rare Earth Company, Baiyin 730922, China) Abstract:Some processes of sulfating roasting and water leaching of crude Mianning RE concentrate ore, of fine Mianning RE concentrate ore, of Baotou RE concentrate ore and of their mixture were investigated.The result shows......
Decomposition of mixed rare earth concentrate by NaOH roasting and kinetics of hydrochloric acid leaching processMei Li1,2,3,Jianfei Li1,2,Dongliang Zhang2,3,Kai Gao2,3,Huihui Wang2,Wei Xu2,Jinlong... of Chemical Technology摘 要:A new clean extraction technology for the decomposition of Bayan Obo mixed rare earth concentrate by NaOH roasting is proposed.The process......
Decomposition of mixed rare earth concentrate by NaOH roasting and kinetics of hydrochloric acid leaching processMei Li1,2,3,Jianfei Li1,2,Dongliang Zhang2,3,Kai Gao2,3,Huihui Wang2,Wei Xu2,Jinlong... of Chemical Technology摘 要:A new clean extraction technology for the decomposition of Bayan Obo mixed rare earth concentrate by NaOH roasting is proposed.The process......
High temperature dephosphorus behavior of Baotou mixed rare earth concentrate with carbon邢鹏飞,李峰,郭菁,涂赣峰School of Materials and Metallurgy,Northeastern University摘 要:Based on the carbothermal reduction technology applied in industry,the dephosphorization behavior of Baotou mixed rare earth concentrate(Baotite) with carbon at high temperature......
High temperature dephosphorus behavior of Baotou mixed rare earth concentrate with carbon邢鹏飞,李峰,郭菁,涂赣峰School of Materials and Metallurgy,Northeastern University摘 要:Based on the carbothermal reduction technology applied in industry,the dephosphorization behavior of Baotou mixed rare earth concentrate(Baotite) with carbon at high temperature......
of nitric acid leaching of cerium was investigated for the oxidation roasted Baotou mixed rare earth concentrate. The effects of leaching temperature, HNO3 concentration, liquidesolid ratio(L/S)and stirring...Kinetics of nitric acid leaching of cerium from oxidation roasted Baotou mixed rare earth concentrateKai Li1,2,Ji Chen1,Dan Zou1,Tianchi Liu1,2,Deqian Li11. State Key Laboratory of Rare Earth......
of nitric acid leaching of cerium was investigated for the oxidation roasted Baotou mixed rare earth concentrate. The effects of leaching temperature, HNO3 concentration, liquidesolid ratio(L/S)and stirring...Kinetics of nitric acid leaching of cerium from oxidation roasted Baotou mixed rare earth concentrateKai Li1,2,Ji Chen1,Dan Zou1,Tianchi Liu1,2,Deqian Li11. State Key Laboratory of Rare Earth......
:Vapor phase extraction and mutual separation of rare earth (RE) elements from bastnaesite concentrate were investigated using stepwise chlorination-chemical vapor transport reactions mediated by vapor... characteristics were observed for gradually decreased and wave form temperature gradients Key words:rare earths; bastnaesite concentrate; chemical vapor transport; RE vapor complexes; LnAlnCl3n+3; [全文内......
