ore flotation sulphide

These species, whose speciation depends on the pH and the initial concentration of each element, are harmful for the copper sulfide ore flotation as they can adhere at the mineral surface, which ...

The recovery of In metal from sulphide ores by flotation can markedly reduce the costs of subsequent smelting processes and environmental pollution. In this work, the flotation was adopted to pre-enrich the In from a Canadian sulphide ore. The findings of this study can provide a basis for the pre-treatments of In-bearing sulphide …

Flotation of a complex sulphide ore 1047 Pulp potential did not vary very much with aeration and oxygenation but nitrogenation caused lower pulp potential. Copper and zinc were both depressed with high NaSH addition. When H202 was added the copper grade increased quite significantly, from 6.5% to 11% with 95% recovery due to decrease …

Copper ore deposits accumulate at relatively shallow depths in the crust, but it is unclear how the metal is transported. ... Flotation of sulphide drops and their ultimate release to H 2 S-rich ...

potential can affect overall flotation recovery in a complex sulphide ore, by the use of a chemical reagent (sodium hypochlorite) under changing pH conditions. 2. Experimental Details

1. Introduction. Flotation, a physicochemical separation process that exploits the difference in the surface properties of valuable minerals and unwanted gangue minerals, is currently the most important and versatile mineral processing technique [1].It utilizes the hydrophobic (aerophilic) nature of mineral surfaces and their tendency to attach to rising …

The activation effects of single activator and some combined activators on Yunnan copper oxide ore were studied with Drawing a conclusion that the best activation - xanthate flotation result could ...

The objective of this review is to present a summary of the current knowledge on the subject of seawater flotation processes, highlighting the copper …

Thus, the sulphide ore comes on top of the froth and oil. The remaining gangue particles, which did not dissolve in oil, settle down. The is removed and taken for further processing. Thus, the minerals are separated by the froth-flotation process. This method is extensively utilised for copper sulphide, lead sulphide and zinc sulphide.

The ore is treated by bulk sulphide flotation with the aim of maximising the valuable minerals recovery and gangue minerals rejection. A major problem stemming from the existence of PGMs together with BMS is that, a loss of BMS during flotation will be accompanied by a loss of valuable minerals (PGMs) associated with the sulphides …

The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water to about 60% of the cell volume before the required volumes of 1% solutions of the collector; SIPX (sodium isopropyl xanthate) and depressant were added.

Flotation of lead-zinc sulfide ore . In the beneficiation process, the sulfide lead-zinc ore is mainly flotation. Among them, the proportion of zinc ore in most lead-zinc ore is higher than that of lead ore. Therefore, in the actual process, the method of "suppressing zinc and floating lead" is generally adopted. Main principles to deal ...

REAGENTS FOR SILVER ORE FLOTATION. The conditioning agents used for silver ores are the same as those for gold ores. Soda ash is a commonly used pH regulator. It aids the flotation of galena and silver sulphides. ... In the treatment of an auriferous sulphide ore associated with carbonaceous shale from South Africa, up to 77 …

The results indicate that 43.37% Pb and 66.01% Ag were recovered by the flotation of lead sulfide ore, and the average grades of Pb, Zn and Ag in the Pb concentrate were 52.73%, 10.17% and 7562.37 g/t, respectively. Furthermore, total 84.42% Zn was recovered by flotation of zinc sulfide minerals and Zn oxide minerals, and the …

major mineralogical constituents of a complex sulphide ore is flotation. This process in particular enables achievement of a clean separation with respect to the non-valuable …

It is generally known that sulphide minerals float only in a suitable redox environment (Heyes and Trahar, 1979).During flotation, sulphide minerals interact with thiol collectors in an electrochemical reaction to form hydrophobic entities at the mineral surface (Finkelstein and Goold, 1972, Rand and Woods, 1984).The sulphide minerals …

The Cu/Ni sulfide ore for bench-scale flotation was from the Yanbian Copper–nickel Mine. The results of chemical analysis of the ore are listed in Table 2.It showed that the main composition of the ore for bench-scale flotation is as follows: 27.81% MgO, 38.91% SiO 2, 12.38% Fe 2 O 3 and 6.02% CaO, which only contained 0.20% Cu, …

Froth flotation is a physicoc hemical process that has been. A. Bahrami et al., Process mineralogy as a key factor affecting the flotation kinetics of copper sulfide minerals 431. used for more ...

environments render some sulphide minerals amenable to flotation without collectors. This paper presents both the fundamentals of 88 sulphide minerals flotation and the …

Infesta. Abstract: Froth flotation of copper-zinc-lead ores is a complex process based on similar metallurgy. processing and strong interactions between chalcopyrite and sphalerite. These types of ...

There have been only a few studies on the effects of sulphate addition on the flotation of sulphide ores. For example, sulphate addition (63 mg/L) to a complex sulphide ore showed mixed results on the flotation of the major minerals: Pb recovery increased but Zn recovery decreased while Cu recovery slightly decreased.

Selective flotation of sulphide minerals from complex ore is dependent on the several parameters such as: type and dosage of collectors, galvanic interactions and …

DOI: 10.1016/0301-7516(95)00095-X Corpus ID: 96119395; Flotation of a complex sulphide ore. II. : Influence of grinding environments on Cu/Fe sulphide selectivity and pulp chemistry

Froth flotation is widely used for concentration of base metal sulphide minerals in complex ores. One of the major challenges faced by flotation of these ores is the ever varying grade and mineralogy.

Copper sulfide ore (CSO) was obtained from the Division El Soldado (Anglo American Chile S.A.), with particles sizes of less than 1 mm and free of industrial chemical flotation reagents. Rougher flotation tests on a laboratory scale.

In fact, in sulfide ore flotation concentrates, silica is usually the most common impurity. Accordingly, increasing the concentration makes it difficult to reduce the content of silica in the concentrate, indicating that in addition to quartz entrained by and useful minerals in the form of symbiosis in the concentrate, the sulfide mineral ...

Flotation of Sulphide Ores - HZL Experience. V. P. Kohad. Published 1 September 1998. Engineering, Materials Science. Flotation process, patented in the …

An ore typical of the Merensky reef was acquired from one of the Merensky processing operations. The bulk sample was crushed, blended, riffled and split using a rotary splitter into 1 kg portions.Synthetic plant water (Wiese et al., 2005a, Wiese et al., 2005b) was used for all batch flotation tests.The 1 kg ore samples were milled in …