Leaching of synthetic scheelite by nitric acid without the formation of tungstic acid

Industrial and Engineering Chemistry Research

Volumn 42, Issue 21, 2003, Pages 5031-5036

  Martins, J I ^a  

^a UNIVERSITY OF PORTO   (Portugal)

Author keywords

[No Author keywords available]

Indexed keywords

LEACHING; MASS TRANSFER; NITRIC ACID; PH EFFECTS;

ACIDIC MEDIUM;

REACTION KINETICS;

NITRIC ACID DERIVATIVE; SCHEELITE; TUNGSTEN DERIVATIVE; TUNGSTIC ACID; UNCLASSIFIED DRUG;

LEACHING;

ACIDITY; ARTICLE; CHEMICAL ANALYSIS; CHEMICAL REACTION KINETICS; LEACHING; MASS SPECTROMETRY; MATHEMATICAL ANALYSIS; MATHEMATICAL MODEL; PH MEASUREMENT; PRODUCT RECOVERY; REACTION ANALYSIS; SHRINKING CORE MODEL; SOLID; SYNTHESIS; TEMPERATURE DEPENDENCE; TEMPERATURE MEASUREMENT;

EID: 0142027114     PISSN: 08885885     EISSN: None     Source Type: Journal    
DOI: 10.1021/ie030008s     Document Type: Article

References (35)

1. Martins, J. I.; Barros, M. G. Thermodynamics of scheelite and wolframite leaching systems. Intern Report from the Faculty of Engineering at University of Porto, 1996.
2. Li, K. C.; Wang, C. Y. Tungsten; Reinholt Corp.: New York, 1947.
3. Yurkevich, Yu. N.; Shapiro, K. Ya.; Sviridovskaya, R. M. Decomposition of a scheelite concentrate with nitric acid. Tsvet. Met. 1964, 37 (8), 71.
4. Meerson, G. A.; Khavskii, N. N. Treatment acid of scheelite. Tsvetn. Met. 1961, 30 (3), 41.
5. Fieberg, M. M.; Coetzee, C. F. B. The recovery of tungsten from South African low-grade scheelite concentrates. MINTEK Report No. M164D; Council for Mineral Technology: Randbourg, 1986.
6. Vezina, J. A.; Gow, W. A.; Lalibert, J. J. Continuous recovery of tungstic trioxide. European Patent 836441, 1970.
7. Pittuck, A. D. Process for extracting tungsten values from materials containing same. Canadian Patent 784.171, 1968.
8. Potashnikov, Yu. M.; Rumiantsev, V. K.; Chursanov, Yu. V. Effect of nitric acid concentration on the dissolution rate of scheelite. Sb. Statei Khim. Khim. Teckhnol. 1975, 13.
9. Yih, S. W. H.; Wang, C. T. Tungsten: sources, metallurgy, properties, and applications, 2nd ed.; Chapman and Hall Ltd.: New York, 1979.
10. Meerson, G. A.; Khavskii, N. N. Hydrometallurgic heterogeneous reactions happened during the grinding. Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk, Metall. Topl. 1961, 5, 36.
11. Meerson, G. A.; Mikhailova, V. C. Treatment with nitric acid in a mills heated of a scheelite concentrate. Tsvetn. Met. 1967, 40 (4), 69.
12. Mikhailov, V. A.; Pomoshmikov, E. E.; Vosse'l, S. V.; Marova, I. V.; Vasenin, N. T.; Makarov, E. P.; Eremenko, S. I.; Dulepov, E. V.; Amfrienko, E. V. Investigation of physical and chemical properties of mechanically activated tungsten concentrates. Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk 1985, 4, 29.
13. Zelikman, A. N. Approaches to process intensification in breaking down of tungsten concentrates. Izv. Sib. Otd. Akad. Nauk SSSR, Ser. Khim. Nauk 1985, 4, 23.
14. Li, H.; Lin, M.; Shi, Z.; Dai, C.; He, Y.; Li, J.; He, K. Faming Zhuanli Shenqing Gongkai Shuomingshu 1986, CN 85100, 350.
15. General Electric Co. London Patent 818,117, 1959.
16. Hubbard, H. M.; Acres, G.; Kennedy, J. H. Process for the extraction of tungsten values from materials containing some. U.S. Patent 3,047,361, 1962.
17. Xuin, G. H.; Yu, D. Y.; Su, Y. F. Leaching of scheelite by hydrochloric acid in the presence of phosphate. Hydrometallurgy 1986, 16, 27.
18. Gürmen, S.; Timur, S.; Arshn, C.; Duman, I. Acid leaching of scheelite concentrate and production of heteropoly-tungstate salt. Hydrometallurgy 1999, 51, 227.
19. Forward, F. A.; Vizsolyi, A. I. Process for the production of tungstic acid. U.S. Patent 3,193,347, 1965.
20. Dow Chemical Co. Process for recovery of tungsten values. London Patent 1,137,518, 1968.
21. Duncan, J. F.; Kepert, D. L. Polyanion equilibria in aqueous solution. Part II. A thermodynamic study of the paratungstate A anion. J. Chem. Soc. 1962, Jan, 205.
22. Freedman, M. L. Polymerization of anions. The hydrolysis of sodium tungstate and sodium chromate. J. Am. Chem. Soc. 1958, 80 (9), 2072.
23. Souchay, P.; Boyer, M.; Chauveau, F. Advances in the solution chemistry of tungstates. Trans. R. Inst. Technol., Stockholm 1972, 259, 160.
24. Levenspiel, J. A. Chemical reaction engineering, 2nd ed., Wiley: New York, 1972.
25. El Wakkad, S. E. S.; Rizk, H. M. The solubility of tungsten trioxide in hydrochloric acid. J. Chem. Soc. 1956, Aug, 3248.
26. Busev, A. I.; Ivanov, V. M.; Sokolova, T. A. Analiticheskaya khimiya vol'frama; Izd Nauka: Moscow, 1976.
27. Palant, A. A.; Reznichenko, V. A.; Nikiforova, S. E. Influence of temperature on the extraction of tungsten(VI) by amines. Russ. J. Inorg. Chem. 1980, 25 (3), 480.
28. El Wakkad, S. E. S.; Rizk, H. M. The polytungstates and the colloidal nature and the amphoteric character of tungstic acid. J. Chem. Soc. 1957, 61, 494.
29. Parkhomovskii, V. L. Interaction of scheelite and powellite with nitric acid. Obogashch. Rud (Leningrad) 1967, 12 (3), 26.
30. Ismatov, Kh. R.; Bagasheva, L. M.; Rumyantsev, V. K.; Gurtovenko, T. P. Kinetics of the nitric acid autoclave decomposition of scheelite. Dokl. Akad. Nauk Resp. Uzb. 1977, No. 2, 41.
31. Kim, T. K.; Mooney, R. W.; Chiola, V. Study of soluble tungstate species by solvent extraction. Sep. Sci. 1986, 3 (5), 476.
32. Cordis, V.; Tytko, K. H.; Glemser, O. Over isopolytungstate solid compounds and their relationship to their formation from aqueous solutions. Z. Naturforsch. 1975, 306 (11/12), 834.
33. Szarvas, V. P.; Kurki, E. Cs. Over the kinetics of the formation of polymeric tungstates. Z. Anorg. Allg. Chem. 1960, 305, 55.
34. Avesta Jernverks Aktiebolag. Tableaux de corrosion pour l'acier inoxidable et le titane; Carlson Press Boktryckeri: Stockholm, 1972.
35. Polar, J. P. A guide to corrosion resistance; Climax Molybdenum Co.: New York, 1961.