froth flotation overdose nahs depression

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Overdose NaHS Depression - Froth Flotation Sulphide and Oxide

What is the mechanism by which excess NaHS starts to depress valuable minerals in flotation?How do you know the point at which you are adding too much NaHS? Is it that the excess NaHS alters the electrochemistry in the pulp such that&nbs

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Feb 2020 froth phase. Furthermore, it is shown that an overdose of guar gum hindered the depression effect more effective separation of sulfide ore from gangue minerals has been found in froth flotation using Göktepe, F. Ef

A Review of Recent Advances in Depression Techniques for - MDPI

2 Sep 2020 In Cu–Mo flotation, chalcopyrite is depressed using Cu depressants, such as NaHS, Na2S, Nokes reagent P2S5 NaOH , and NaCN, meaning that it is recovered as tailings, while molybdenite is floated and recovered as froth&n

The role of sodium sulfide in the flotation of pyrite depressed in

25 Sep 2020 For the first time, this study investigated the role of Na2S responsible for the flotation of pyrite depressed in Depressing copper sulfides using sodium hydrosulfide NaHS in the flotation of molybdenite is a common

The depression of pyrite in selective flotation by different reagent

4 Sep 2020 20 6b. In general, pyrite flotation and depression strongly depend on pH, and using alkalis e.g., NaOH, Na 2 CO 3 , and CaO for Furthermore, it is shown that an overdose of guar gum hindered the depression effect due

AN INVESTIGATION OF COPPER RECOVERY FROM A - QSpace

achieved as g/L of sulphidizing agent can cause an irreversible depression, as seen in curve 2 in. Figure 2.8. This depression For example, if collector addition were to be an explanatory variable for a froth flotation process, the

An ınvestigation of the flotation behaviour of the sulphide gold ores

Determining the Effect of pH, NaHS and CuSO4 on gold recovery 35 The concentration of minerals by froth flotation depends primarily upon the depression of talc minerals and avoids the use of expensive gangue depressant

CA2945354A - Depression of copper and iron sulfides in

Sodium hydrosulfide NaHS flotation is the benchmark standard, in very common use, but with inherent HSE Health, Also in each case, the phrase "little of these materials are trapped in the froth" means most of the copper s

Manjeet Chowdhry - ERA - University of Alberta

Collectors are one of the most important ingredients of froth flotation in mineral processing, as they selectively render the Froth Flotation and Collector Reagents . depressants used in gangue depression are that they: i must h

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