Zinc cementation by magnesium from ZnCl2+NH4Cl aqueous solutions has been investigated. The amount of magnesium has been established as 0.8–2.0 g per 1 g of conditioned zinc to obtain recovery degree 99 %. At low concentrations of Zn2+ ions (0.025–0.1 M ZnCl2) dispersed deposit is formed with nanoparticles of reduced metal; at high concentrations (0.25–0.5 M) coarse-crystalline and fern-shaped deposit is formed.
[1] Voldman G. and Zelicman A.: Teoriya Hydrometallurgicheskih Processov. Metallurgiya, Moskwa 1993. [2] Dresvyannicov A., Pietuhova L. and Sopin V.: Zh. Prykl. Khimii, 1998, 71, 1656.
[3] Kuntyi O., Masyk O. and Minakova R.: Mat. Sci., 2004, 40, 428.
[4] Kuntyi O., Khoma M. and Koltun O.: Ecotechn. i Resursozberegenie, 2004, 3, 39.
[5] Kuntyi O., Zozulya G. and Kurilets O.: Rus. J. Appl. Chem., 2007, 80, 189.
[6] Kuntyi O., Zozulya G. and Kurilets O.: Rus. J. Non-Ferrous Metals, 2007, 48, 413.
[7] Sulka G. and Jaskula M.: Hydrometallurgy, 2004, 72, 93.
[8] Viramontes Gamboa G., Medina Noyola M. and Lopez Valdivieso A.: Hydrometallurgy, 2005, 76, 193.
[9] Karavasteva M.: Hydrometallurgy, 2005, 76, 149.
[10] Nichiporenko O., Pomosov A. and Naboichenko S.: Poroshki Medi i ee Splavov. Metallurgiya, Moskwa 1988.