Flotation chrysocolla

Figure 19.4 Effect of Na2S concentration on the flotation of chrysocolla.

Gonzales, G., The Recovery of Chrysocolla with Different Long Chain Surface-active Agents as Flotation Collectors, Journal of Applied Chemistry Biotechnology, Vol. 16, No. 28, pp. 31-38, 1978. 

K is called the Barsky s constant, which shows competitive reaction between reagent and hydroxyl ions in flotation. For example, the flotation of pyrite, galena and chrysocolla by ethyl xanthate as a function of pH is shown in Fig. 4.39. 

It has been shown that the combined use of 8-hydroxyquinoline, a chelating collector, and amyl xanthate can yield good flotation of chrysocolla at pH 7-10 (Mukai and Waka-matsu, 1975). 

Based on the above equations, log 6 values for various pH can be obtained, and the plot given in Fig. 4.46 shows the optimum pH region for the flotation of chrysocolla. 

Figure 10.37. Flotation of chrysocolla as a function of pH with different concentrations of octyl hydroxamate (after ref. (15))...

G.A. Hope, A. Numprasanthai, A.N. Buckley, G.K. Parker G. Sheldon, "Bench-scale flotation of chrysocolla with n-octanohydroxamate" Minerals Engineering, 36-38 (2012), 12-20... 

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