Kinetics on leaching rare earth from the weathered crust elution-deposited rare earth ores with ammonium sulfate solution

Hydrometallurgy

Volumn 101, Issue 3-4, 2010, Pages 166-170

  Jun, Tian ^a,b   Jingqun, Yin ^b   Ruan, Chi ^a,c   Guohua, Rao ^b   Mintao, Jiang ^b   Kexian, Ouyang ^b  

^a CENTRAL SOUTH UNIVERSITY   (China)

^b INSTITUTE OF APPLIED CHEMISTRY   (China)

^c WUHAN INSTITUTE OF TECHNOLOGY   (China)

Author keywords

Clays minerals; Kinetics; Leaching; Rare earth

Indexed keywords

AMMONIUM SULFATE; APPARENT ACTIVATION ENERGY; EMPIRICAL EQUATIONS; EXPERIMENTAL DATA; KINETIC MODELS; KINETICS AND MECHANISM; KINETICS MODELS; LEACHING MECHANISM; LEACHING PROCESS; LEACHING RATES; POROUS LAYERS; RARE EARTH ORES; SHRINKING CORE MODEL;

ACTIVATION ENERGY; AMMONIUM COMPOUNDS; CLAY MINERALS; HYDROMETALLURGY; LEACHING; MATHEMATICAL OPERATORS; MINERALS; ORES; RARE EARTH ELEMENTS; RATE CONSTANTS;

RARE EARTHS;

EID: 76449122120     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.hydromet.2010.01.001     Document Type: Article

References (20)

1. Ashraf M., Zafar Z.I., and Ansari T.M. Selective leaching kinetics and upgrading of low-grade calcareous phosphate rock in succinic acid. Hydrometallurgy 80 4 (2005) 286-292
2. Aydogan S., Ucar G., and Canbazoglu M. Dissolution kinetics of chalcopyrite in acidic potassium dichromate solution. Hydrometallurgy 81 1 (2006) 45-51
3. Chen J., Yang S., and Ke J. The Studies and Progress of Metallurgy (1998), China Metallurgy industry press, Beijing
4. Chi R., and Tian J. Weathered Crust Elution-Deposited Rare Earth Ores (2008), Nova Science Publishers, Inc., New York
5. Chi R., et al. Kinetics of manganese reduction leaching from weathered rare-earth mud with sodium sulfite. Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science 33 1 (2002) 41-46
6. Chi R., et al. Existing State and Partitioning of Rare Earth on Weathered Ores. Journal of Rare Earths 23 6 (2005) 756-759
7. Chi R., et al. Kinetics of rare earth leaching from a mangnese-removed weathered rare-earth mud in hydrochloric acid solutions. Separation Science and Technology 41 6 (2006) 1099-1113
8. Habashi F. Principles of Extractive Metallurgy. General Principles vol. 1 (1980), Gordon and Breach, New York
9. 4 leaching. Chinese Rare Earths 4 3 (1983) 1-5
10. Huang X., et al. Development of rare earth hydrometallurgy technology in China. Journal of Rare Earths 23 1 (2005) 1-5
11. Kul M., Topkaya Y., and Karakaya I. Rare earth double sulfates from pre-concentrated bastnasite. Hydrometallurgy 93 3-4 (2008) 129-135
12. Lasheen T.A., Hazek M.N.E., and Helal A.S. Kinetics of reductive leaching of manganese oxide ore with molasses in nitric acid solution. Hydrometallurgy 98 314-317 (2009)
13. Levenspiel O. Chemical Reaction Engineering (1999), John Wiley & Sons, Inc, New York
14. Núñez C., Cruells M., and García-Soto L. A general shrinking-particle model for the chemical dissolution of all types of cylinders and discs. Hydrometallurgy 36 3 (1994) 285-294
15. Núñez C., Viñals J., Roca A., and García-Soto L. A general shrinking-particle model for the chemical dissolution of crystalline forms. Hydrometallurgy 36 1 (1994) 1-17
16. Tian J., et al. Leaching hydrodynamics of weathered elution-deposited rare earth ore. Transactions of Nonferrous Metals Society of China 11 3 (2001) 434-437
17. Tian J., Chi R., and Yin J. Process of Leaching Rare Earths from the Weatherd Crust Elution-deposited Rare Earth Ore. 2009's Fifth International Conference on Hydrometallurgy, Zhangjiajie, China (2009) B-55
18. Vilímec J., and Jakubec K. Direct spectrophotometric determination of rare earths in organic extracts with chlorophosphonazo III. Microchemical Journal 35 3 (1987) 325-327
19. Wan Y., and Liu C. Study on adsorption of rare earth elements by kaolinite. Journal of Rare Earths 23 3 (2005) 377-381
20. Zhou H., Zheng S., Zhang Y., and Yi D. A kinetic study of the leaching of a low-grade niobium-tantalum ore by concentrated KOH solution. Hydrometallurgy 80 3 (2005) 170-178