Selective against zinc(II) extraction of cadmium(II) with binary extractants

• Autorzy: Gotfryd L. , Szymanowski J.
• Języki publikacji: EN

Abstrakty

EN

A series of investigations was performed to recognise the possibilities to develop technology, based on solvent extraction, for cadmium(II)/zinc(II) separation, purification and enrichment from industrial solutions. To solve the problem a classical sequence of the research work was performed: i) independent measurements of Cd(II) and Zn(II) extraction versus pH with use of all available extractants, ii) determination of cadmium(II) extraction and stripping isotherms for chosen extractants preparations. The extractive system for the chosen extractant - DIPSA/Cyanex 471X - was designed and tested on technological solution.

Słowa kluczowe

EN

cadmium(II)/zinc(II) separation; solvent extraction; di(3,5-isopropyl)salicylic acid (DIPSA); Cyanex 471X

PL

kadm(II); separacja Cd(II)/Zn(II); ekstrakcja rozpuszczalnikowa; kwas di(3,5-izopropylo)salicylowy; DIPSA; Cyanex 471X

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2004
• Tom: Vol. 6, nr 2
• Strony: 19--23
• Opis fizyczny: Bibliogr. 7 poz., tab., rys.

Twórcy

autor

Gotfryd L.

• Institute of Nonferrous Metals, Gliwice, Sowińskiego Street 5; 44-101 Gliwice

autor

Szymanowski J.

• Poznań University of Technology, M. Skłodowskiej Curie, Square 5; 60-965 Poznań

Bibliografia

• (1) Preston J. S., Patrick J. H., Steinbach G.: The selective solvent extraction of cadmium by mbctures of carboxylic acids and trialkylphosphine sulphides. Part 2. Practical applications to the separation of cadmium from zinc and nickel, Hydrometallurgy, 36(2) (1994) 143 - 160.
• (2) Preston J. S.: The selective solvent extraction of cadmium by mixtures of carboxylic acids and trialkylphosphine sulphides. Part I . The origin and scope of the synergistic effect; Hydrometallurgy, 36 (1994) 61 - 98.
• (3) Preston J. S., The production of cadmium; European Patent 0 617 135 A l , 1994.
• (4) Preston J. S., du Preez A. C.: The solvent extraction of cadmium and zinc by mixtures of carboxylic acids and alkanethiols, Solvent Extr. lon Exch., 12 (4) (1994) 667 - 684.
• (5) Preston J. S., du Preez A. C.: Synergistic effects in solvent-extraction systems based on alkylsalicylic acids. Part 2. Extraction of nickel, cobalt, cadmium and zinc in the presence of some neutral N-, O- and S-donor compounds; Solvent Extr. lon Exch., 14(2) (1996) 179 - 201.
• (6) Lizhu L., Dali Z., Huiquin X., Jiajun K.: Extraction and separation of cadmium and zinc with a mixture of di(2-ethylhexyl)dithiophosphoric acid and trioctylamine, Chinese J. Chem. Eng., 7(2) (1999) 132 - 138.
• (7) Preston J. S.: The influence of extractant structure on the solvent extraction of zinc(II) and cadmium(II) by carboxylic acids, Solvent Extr. lon Exch., 12 (1) (1994) 1 - 27.