Extraction of phosphorus, arsenic and/or silica from sodium tungstate and molybdate solutions with primary amine and tributyl phosphate as solvents. I - Synergistic extraction and separation of phosphorus, arsenic and/or silica from tungstate and molybdate solutions

Hydrometallurgy

Volumn 42, Issue 3, 1996, Pages 313-324

  Zhao, Youcai ^a,b   Chen, Jiayong ^a  

^a INSTITUTE OF CHEMISTRY   (China)

^b TONGJI UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

AMINES; ARSENIC; MOLYBDENUM COMPOUNDS; PH; PHOSPHORUS; SEPARATION; SILICA; SOLUTIONS; TUNGSTEN COMPOUNDS;

ALKALINE SOLUTIONS; NEUTRAL SOLUTIONS; SODIUM MOLYBDATE; SODIUM TUNGSTATE; SYNERGISTIC EXTRACTION; TRIBUTYL PHOSPHATE;

SOLVENT EXTRACTION;

EID: 0030260238     PISSN: 0304386X     EISSN: None     Source Type: Journal    
DOI: 10.1016/0304-386X(95)00108-S     Document Type: Article

References (19)

1. Dai, G.S., Xuan, B.Y. and Su, Y.F., Separation of tungsten and molybdenum in dilute hydrochloric acid solution by extraction with sulfoxides. Hydrometallurgy, 13 (1984): 137-153.
2. 40] 3(RNH)Cl. Solvent Extr. Ion Exchange, 6 (1988): 1-37.
3. Yatirajam, V. and Dhamija, S., Extractive separation of tungsten as phosphotungstate. Talanta, 24 (1977): 52-55.
4. Murata, K. and Kiba, T., Studies on the formation and the extraction of molybdophosphoric acid. J. Inorg. Nucl. Chem., 22 (1970): 1667-1678.
5. Jakubiec, R.J. and Boltz, D.F., Spectrophotometric study of molybdophosphoric acid methods for phosphorus using propylene carbonate as extractant. Mikrochim. Acta, 6 (1970): 1199-1207.
6. Yu, Shuqui and Chen, Jiayong, Mechanism of synergistic extraction of rhenium(VII) by primary amines and neutral phosphorus esters. Hydrometallurgy, 14 (1985): 115-126.
7. Yu, Shuqiu and Chen, Jiayong, Separation of tungsten in molybdate solutions by synergistic extraction with primary amine and neutral donor extractants. Chinese J. Metals Sci. Technol., 3 (1987): 131-139.
8. Zhao, Youcai, Synergistic extraction and mechanism for the removal of phosphorus, arsenic and silica from molybdate and tungstate solutions with primary amine and tributyl phosphate as solvents. Ph.D. Thesis, Inst. Chem. Metallurgy, Academia Sinica, Beijing, 1989.
9. Halasz, A. and Pungor, E., Properties and analytical applications of the heteropolymolybdates of phosphorus, arsenic, silicon and germanium - I. Spectrophotometric examination of the heteropoly acids. Talanta, 18 (1971): 557-568.
10. Halasz, A. and Pungor, E., Properties and analytical applications of the heteropolymolybdates of phosphorus, arsenic, silicon and germanium - II. Modifications of the heteropoly acids. Talanta, 18 (1971): 569-575.
11. Halasz, A. and Pungor, E., Properties and analytical applications of the heteropolymolybdates of phosphorus, arsenic, silicon and germanium - III. Examination of two- and three-component systems without separation. Talanta, 18 (1971): 577-586.
12. Pope, M.T., Heteropoly and Isopoly Oxometalates. Springer (1983).
13. Zhao, Youcai and Chen, Jiayong, Extraction of phosphorus, arsenic and/or silica from sodium tungstate and molybdate solutions with primary amine and tributyl phosphate as solvent. II - Mechanism of extraction of phosphorus, arsenic or silica from tungstate and molybdate solutions. Hydrometallurgy, 42 (1996) 325-335, this issue.
14. Lakshmanan, V.I. and Haldar, B.C., Studies on the extractive behavior of 12-heteropoly acids. Part I. Extraction of 12-tungstophosphoric acid. J. Ind. Chem. Soc., 46 (1969): 512-524.
15. Lakshmanan, V.I. and Haldar, B.C., Studies on the extractive behavior of 12-heteropoly acids. Part II. Extraction of 12-molybdophosphoric, 12-tungstosilicic and 12-molybdosilicic acid. J. Ind. Chem. Soc., 47 (1970): 231-238.
16. Lakshmanan, V.I. and Haldar, B.C., Studies on the extractive behavior of 12-heteropoly acids. Part III. Extraction of 12-tungstophosphoric, 12-molybdophosphoric, 12-tungstosilicic and 12-molybdosilicic acids by TBP in organic diluents. J. Ind. Chem. Soc., 47 (1970) 71-78.
17. Zhao, Youcai, Yu, Shuqiu and Chen, Jiayong, Synergistic extraction of phosphorus from sodium molybdate solution by primary amine and tributylphosphate. In: Chen Jiayong (Editor), Proc. 1st Int. Conf. on Hydrometallurgy (Beijing). International Academic Publishers, Beijing (1988), pp. 194-198.
18. Zhao, Youcai, Yu, Shuqiu and Chen, Jiayong, Mechanism of synergistic extraction of phosphorus from sodium molybdate solution by primary amine and tributylphosphate. In: Proc. Int. Conf. on Solvent Extraction (ISEC'88). Moscow, Vol. 4 (1988), pp. 265-268.
19. Zhao, Youcai, Yu, Shuqiu and Chen, Jiayong, Separation and removal of impurities from sodium molybdate and tungstate solutions by solvent extraction with primary amine and neutral donor extractants. In: Peiyun Huang (Editor), Proc. 1st Int. Conf. on W-Sb-Ti-Rare Metals (Changsha, Hunan, China). International Academic Publishers, Beijing, Vol. 1 (1988), pp. 181-184.