Detail of "502-55-6"

Reference

Thermodynamic calculations on sulfide flotation systems: I

Thermodynamic calculations on sulfide flotation systems: I. Galena-ethylxanthate system in the absence of metastable species. Pritzker, M. D.; Yoon, R. H. (Dep. Min. Miner. Eng., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061, USA). Int. J. Miner.Several reagents with their cas registry numbers 12179-39-4 and 20936-29-2 are used here. Process., 12(1-3), 95-125 (English) 1984. CODEN: IJMPBL. ISSN: 0301-7516. DOCUMENT TYPE: Journal CA Section: 54 (Extractive Metallurgy) Mass-balance equations for the species present in the galena [12179-39-4]-Et xanthate system were derived in terms of the equil. consts., and were solved to det. the concns. of dissolved species and the wt. of the solids present at a given pH. Computations were carried out for K Et xanthate [140-89-6] addns. of 0, 10-7, 10-6, 10-5, and 10-4 mol/L. The results were used to generate: (1) plots of the equil. concn. of the various dissolved species as a function of pH at a given Eh; (2) Eh-pH stability diagrams for each xanthate addn.; and (3) plots of the amts. of Pb xanthate [20936-29-2] and/or dixanthogen [502-55-6] formed as functions of Eh and pH. The results were used to explain quant. the anodic dissoln. of galena in acidic conditions. .

Effect of electrochemical and ultrasonic treatments on the state of xanthate in aqueous solutions and its sorption on galena

Effect of electrochemical and ultrasonic treatments on the state of xanthate in aqueous solutions and its sorption on galena. Baishulakov, A. A.; Ishchenko, V. V.; Ni, L. P.; Zholshibekova, M. R.; Malakhov, Yu. V. (Inst. Metall. Obogashch., Alma-Ata, USSR). Izv. Vyssh. Uchebn. Zaved., Tsvetn. Metall., (1), 8-13 (Russian) 1984. CODEN: IVUTAK. ISSN: 0021-3438. DOCUMENT TYPE: Journal CA Section: 54 (Extractive Metallurgy) The combined electrochem. and ultrasound treatment of K Bu xanthate (I) [871-58-9] solns. (at 0.1% concn.) for 30 min increased the content of dixanthogen (II) [502-55-6] to 21.4%, whereas the latter in the solns. subjected to electrochem. treatment only was 11%. The chemisorption of I and products of its oxidn. by the galena surface from solns. electrochem. treated in an ultrasound field was much higher than from electrochem.-treated solns. An increase in the sorption of the collector on sphalerite [12169-28-7], galena [12179-39-4] and chalcopyrite [1308-56-1] increased their floatability. A characteristic I-II ratio. at which the flotation yield of a given mineral was max., existed for each of them. Thus, the highest recovery into a froth product for galena (75.3%) was obsd. at a II content in the soln. of 8. 1308-56-1 and 871-58-9 are just another two chemicals used in this study.2%, whereas 74.8% of chalcopyrite was recovered at II = 20.8%. .