Study of interaction processes of sodium sulfide and xanthates with malachite
Abstract
The results of flotation of oxidized copper ores at a given mineralogical composition are mainly determined by the selected conditions of preliminary sulfidization of the ore. Conscious management of this operation at the factory requires clear ideas about the kinetics of the process of interaction between soluble sulfides and copper carbonates, about the influence of the sulfide layer on minerals on the subsequent process of their interaction with xanthates, etc. Detailed studies of the sulfidization process, carried out in the laboratory of general and physical chemistry of the Leningrad Mining Institute, on the example of malachite characterized: 1) kinetics of interaction between soluble sulfides and malachite; 2) influence of electrolytes on the sulfidization process; 3) kinetics of interaction between xanthates and malachite - natural and sulfidized; 4) flotation of malachite using different sulfidizers, etc. The results of the study are of interest for industrial flotation of ores containing oxidized minerals, since the processes of interaction between such minerals and flotation reagents have not yet received sufficient coverage in the literature.
References
- Aseev N.P., Beloglazov K.F., Graver N.S. To the problem of acid hydrometallurgical processing of lime ores. Non-Ferrous Metals, 1931, No. 5, p. 570.
- Beloglazov K.F., Osolodkov G.A. Influence of pulp alkalinity on apatite flotation. Journal of Mining Institute, 1935, vol. IX, iss. 1.
- Godin A. Fundamentals of Flotation. GONTI, 1933.
- Davidovich B.A., Lubman N.M. Flotation of oxidized copper ores. Non-Ferrous Metals, 1930, No. 7, p. 977.
- Iou D.G. Colorimetry. ONTI, 1935.
- Creighton G. Fundamentals of Electrochemistry. Goskhimtekhizdat, 1934.
- Osolodkov G.A. Potentiometric titration of sodium sulfide and xanthate in dilute solutions in their combined presence. Journal of Mining Institute, 1941, vol. XIII, iss. 3.
- Treadwell. Course of Analytical Chemistry, vol. II, Goskhimizdat, 1933.
- Iellineck K., Czerwinski J. J. Phys. Chem., 1922, No. 102.
- Landolt, Bernstein. Phys. Chem. Tabl., 1923, V. II.