Tungsten removal from molybdate solutions using chelating ion-exchange resin: Equilibrium adsorption isotherm and kinetics

Abstract

The equilibrium adsorption isotherm and kinetic of the sorption process for W and Mo on macro chelating resin D403 were investigated on single Na₂MoO₄ and Na₂WO₄ solutions. The sorption isotherm results show that the adsorption process of W obeys the Freundlich model very well whereas the exchange process with Mo approximately follows the Henry model. The kinetic experiments show that the intraparticle diffusion process was the rate-determining step for W sorption on the resin, and the corresponding activation energy is calculated to be 21.976 kJ/mol.

Keywords

tungsten / molybdate / ion-exchange resin / isotherms / kinetics

References

[1] WibergE, WibergN, HollemanA FInorganic chemistry [M], 2001San DiegoAcademic Press1385-1386

[2] GB/T 3460. Ammonium molybdate [S]. 2007. (in Chinese)

[3] ZhaoZ-w, CaoC-f, ChenX-yu. Separation of macro amounts of tungsten and molybdenum by precipitation with ferrous salt [J]. Transactions of Nonferrous Metals Society of China, 2011, 21(12): 2758-2763

[4] TallaR G, GaikwadS U, PawarS D. Solvent extraction and separation of Mo(VI) and W(VI) from hydrochloric acid solutions using cyanex-923 as extractant [J]. Indian Journal of Chemical Technology, 2010, 17(6): 436-440

[5] GuanW-j, ZhangG-q, GaoC-jie. Solvent extraction separation of molybdenum and tungsten from ammonium solution by H₂O₂-complexation [J]. Hydrometallurgy, 2012, 127(1): 84-90

[6] LiH-g, HuoG-s, ZhaoZ-wei. Developing new reagent for selectively precipitation of molybdenum from tungstate solution [J]. Transactions of Nonferrous Metals Society of China, 2003, 13(1): 184-187

[7] ZhaoZ-w, CaoC-f, ChenX-y, HuoG-sheng. Separation of macro amounts of tungsten and molybdenum by selective precipitation [J]. Hydrometallurgy, 2011, 108(3): 229-232

[8] KeZ-h, ZhangG-q, GuanW-j, ShangG-hao. Research on tungsten extraction from alkali sodium tungstate solution with quaternary ammonium salt [J]. Rare Metals and Cemented Carbides, 2012, 40(1): 1-4

[9] NingP-g, CaoH-b, ZhangYi. Selective extraction and deep removal of tungsten from sodium molybdate solution by primary amine N1923 [J]. Separation and Purification Technology, 2009, 70(1): 27-33

[10] LuX-y, HuoG-s, LiaoC-hua. Separation of macro amounts of tungsten and molybdenum by ion exchange with D309 resin [J]. Transactions of Nonferrous Metals Society of China, 2014, 24(9): 3008-3013

[11] ZhaoZ-w, ZhangJ-l, ChenX-y, LiuX-h, LiJ-t, ZhangW-guang. Separation of tungsten andmolybdenum using macroporous resin: Equilibrium adsorption for single and binary systems [J]. Hydrometallurgy, 2013, 140: 120-127

[12] SHEKHTER L N, LITZ J E, WEI Xiong. Separation of tungsten from ammonium molybdate solutions: US, 20130243673A1 [P]. 2013-09-19.

[13] ZhangJ-l, ZhaoZ-w, ChenX-yu. Thermodynamic analysis for separation of tungsten and molybdenum in W-Mo-H₂O system. [J] The Chinese Journal of Nonferrous Metals, 2013, 23(5): 1463-1470

[14] CHERESNOWSKY, MICHAEL J. Method for separating tungsten from molybdenum: US, 4999169 [P]. 1991-03-12.

[15] HuoG-s, PengC, SongQ, LuX-ying. Tungsten removal from molybdate solutions using ion exchange [J]. Hydrometallurgy, 2014, 147: 217-222

[16] RengarajS, JooC K, KimY, YiJ. Kinetic of removal of chromium from water and electronic process wastewater by ion exchange resins: 1200H, 1500H and IRN97H [J]. Journal of Hazardous Materials, 2003, 102(2): 257-275

[17] LangmuirI. The adsorption of gases on plane surfaces of glass, mica and platinum [J]. Journal of American Chemical Society, 1918, 40(9): 1361-1403

[18] FreundlichH M F. Over the adsorption in solution [J]. J Phys Chem, 1906, 57: 385-470

[19] LiaoC-huaThe new technology for separation of tungsten and molybdenum by ion exchange [D], 2012ChangshaCentral South University

[20] LazarinA M, BorgoC A, GushikemY, KholinY V. Aluminum phosphate dispersed on a cellulose acetate fiber surface: Preparation, characterization and application for Li⁺, Na⁺ and K⁺ separation [J]. Analytica Chimica Acta, 2003, 477(2): 305-313

[21] AnderiZ AZagorodni. Ion exchange materials: Properties and Applications [M], 2006New YorkElsevier

[22] ZhangJ-l, LiuX-h, ChenX-y, LiJ-t, ZhaoZ-wei. Separation of tungsten and molybdenum using macroporous resin: Competitive adsorption kinetics in binary system [J]. Hydrometallurgy, 2014, 144: 77-85

[23] Al-GhoutiM, KhraishehM A M, AhmadM N M, AllenS. Thermodynamic behaviour and the effect of temperature on the removal of dyes from aqueous solution using modified diatomite: A kinetic study [J]. Journal of Colloid and Interface Science, 2005, 287(1): 6-13

[24] DingP, HuangK-l, LiG-y, LiuY-f, ZengW-wen. Kinetics of adsorption of Zn(II) ion on chitosan derivatives [J]. International Journal of Biological Macromolecules, 2006, 39(4): 222-227