Reference

Adsorption of heteropolar collectors by sulfide minerals and precious metals

Adsorption of heteropolar collectors by sulfide minerals and precious metals. Leonov, S. B.; Baranov, A. N. (Irkutsk. Politekh. Inst., Irkutsk, USSR). Izv. Vyssh. Uchebn. Zaved., Tsvetn. Metall., (6), 8-13 (Russian) 1977. CODEN: IVUTAK. ISSN: 0021-3438. DOCUMENT TYPE: Journal CA Section: 54 (Extractive Metallurgy) Section cross-reference(s): 72 Electrochem. studies were undertaken to det. the interaction of sulfhydryl flotation collectors with Pt, Au, and galena. The sorption energies were detd. on a Pt-coated electrode for K amyl xanthate (I) [2720-73-2], K Bu xanthate (II) [871-58-9], K Et xanthate (III) [140-89-6], Na dithiophosphate dibutyl ether (IV) [36245-44-0], and Na diethyl dithiocarbamate (V) [18869-61-9]. The adsorption capacity increases in the sequence IV < III < II < V < I and decreases in the sequence Pt-Au-galena. A correlation was established between the adsorption of the sulfhydryl collector on galena and its flotability.

Batch and continuous foam separation of copper(II) ions in water

Batch and continuous foam separation of copper(II) ions in water. Hobo, Toshiyuki; Sudo, Yoshihisa; Suzuki, Shigetaka; Araki, Shun (Fac. Eng., Tokyo Metrop. Univ., Tokyo, Japan). Bunseki Kagaku, 27(2), 104-8 (Japanese) 1978. CODEN: BNSKAK. ISSN: 0525-1931. DOCUMENT TYPE: Journal CA Section: 60 (Sewage and Wastes) Cu2+ was concd. from effluents by the foam sepn. technique. The water sample was adjusted to pH 9, then 0.5% K Bu xanthate [871-58-9] and 0.075% cetyltrimethylammonium bromide [57-09-0] were added. A ~100% Cu2+ recovery was obtained from 2 ′ 10-8 g/mL solns. The foam subsided every 30 min in the receiver which contained 0.1 mL BuOH. Cu content was monitored by at. absorption spectrometry.