our products

D&Q Mining is a high-tech company integrating R&D, production and sales. It provides mature products and solutions such as crushers, sand making, milling equipment, mobile crushing stations, etc., for aggregate, mining and waste recycling.

chalcopyrite flotation tailing

Activating flotation of chalcopyrite using CuSO4 and H2O2

the flotation of cyanide chalcopyrite by eleminating CuCN from its surface and increasing the concentration of S by 57.02% and 37.48%, respectively. Keywords: cyanide tailings, chalcopyrite, CuSO 4, H 2 O 2, activation mechanism 1. Introduction Cyanide tailings are engendered from cyanidation gold extraction which has been rapidly developed

More

Interface behavior of chalcopyrite during flotation from

Jun 20, 2020· The recovery of chalcopyrite sharply decreased as the nonpolar oil residue in cyanide tailings was removed through alcohol extraction; however, this removal had no effect on galena. The other chalcopyrite in the flotation tailings was covered with an oxidation layer consisting of O, Fe, S, Pb, Cu, Zn, and Si.

More

Processing of chalcopyrite ore by heap leaching and flotation

Nov 10, 2017· In particular, this study investigated leaching chalcopyrite ore in columns followed by flotation of the leached residues to recover the unleached copper in the form of concentrate. The aim was to recover a portion of the copper normally lost to flotation tailings by leaching it before flotation. 2. Materials and methods 2.1. Ore sample description

More

(PDF) Selective flotation of chalcopyrite from pyrite

Jul 31, 2019· chalcopyrite and pyrite from a copper tailing by ammonium humate. The presence of pyrite decreased the depression effect of biopolymers on chalcopyrite flotation due to the preferential

More

Partial seawater desalination treatment for improving

Jun 01, 2020· Flotation tests were conducted in a batch cell using synthetic minerals composed of mixtures of chalcopyrite, kaolin, and quartz. Meanwhile, tailings settling assays were performed in a PTFE 30 mm turbine type stirrer with an in-situ characterization of aggregates (using a focused beam reflectance measurement (FBRM) probe).

More

(PDF) Assessment of reagent and regrinding in a flotation

Figure 5 shows the chalcopyrite recovery-time curves around the scavenger bank (Figure 4). The concentrate stream shows a very fast flotation response in which 84% is recovered in the first 2 minutes of flotation. Meanwhile, the chalcopyrite response in the tailings is slow, may be due to the coarse particles or poor liberation.

More

(PDF) Assessment of reagent and regrinding in a flotation

The chalcopyrite flotation response immediately after regrinding is severely retarded. It is assumed that the centrifugal action of the cyclone is another important factor restoring the

More

Activating flotation of chalcopyrite using CuSO4 and H2O2

the flotation of cyanide chalcopyrite by eleminating CuCN from its surface and increasing the concentration of S by 57.02% and 37.48%, respectively. Keywords: cyanide tailings, chalcopyrite, CuSO 4, H 2 O 2, activation mechanism 1. Introduction Cyanide tailings are engendered from cyanidation gold extraction which has been rapidly developed

More

Interface behavior of chalcopyrite during flotation from

Jun 20, 2020· The recovery of chalcopyrite sharply decreased as the nonpolar oil residue in cyanide tailings was removed through alcohol extraction; however, this removal had no effect on galena. The other chalcopyrite in the flotation tailings was covered with an oxidation layer consisting of O, Fe, S, Pb, Cu, Zn, and Si.

More

Characterization and Flotation of Sulfur from Chalcopyrite

Results of chalcopyrite flotation on tailings of sulfur flotation. Wt % Grade, % Cu S Recovery, % Cu S. Conc. 24 14.5 20.8 85 51 . Tailings 76 0.8 6.3 15 49 . Calc. Feed 100

More

Recovery of Copper from Cyanidation Tailing by Flotation

Dec 10, 2015· In this work, sodium hypochlorite, hydrogen peroxide, sodium metabisulfite and copper sulfate as activators were investigated to lessen the depression effect of cyanide for deep-depressing chalcopyrite. The experimental results indicate that the copper recovery exceeded 94%, 84% and 97% at the dosage: sodium hypochlorite 3 mL/L, hydrogen peroxide 2 mL/L, sodium metabisulfite 2 × 10−3

More

Copper Flotation Elmhurst University

Ore Concentration by Froth Flotation. Raising the pH causes the polar end to ionize more and to preferentially stick to chalcopyrite (CuFeS 2) and that comes out of the bottom of the tanks at the tail end of this process is called "tailings." It is nothing more than

More

Development of a Biotechnological Process for Reprocessing

Trial tests on biotechnology of flotation tailings processing from copper-concentrating factory at Almalyk Mining and Metallurgical Complex are carried out. Suitability of flotation tailings to processing by a method of heap bacterial leaching is experimentally determined. It is shown, that extraction of copper from flotation tailings makes 56 %, biooxidation of chalcopyrite makes more than 62

More

US9475067B2 Chalcopyrite ore beneficiation process and

US9475067B2 US14/907,578 US201314907578A US9475067B2 US 9475067 B2 US9475067 B2 US 9475067B2 US 201314907578 A US201314907578 A US 201314907578A US 9475067 B2 US9475067 B2 US 9475067B2 Authority US United States Prior art keywords rougher scavenger flotation cleaning concentrate Prior art date 2013-11-26 Legal status (The legal status is an assumption and is not a

More

floatation circuit Archives Mount Polley

Jul 10, 2020· The flotation circuit separates the valuable minerals from the rest of the crushed rocks. With the addition of reagents, the valuable minerals, mostly in the form of sulphide minerals chalcopyrite and bornite, are separated by flotation and are collected and upgraded to produce a concentrate.

More

Recovery of Copper from Cyanidation Tailing by Flotation

In this work, sodium hypochlorite, hydrogen peroxide, sodium metabisulfite and copper sulfate as activators were investigated to lessen the depression effect of cyanide for deep-depressing chalcopyrite. The experimental results indicate that the copper recovery exceeded 94%, 84% and 97% at the dosage: sodium hypochlorite 3 mL/L, hydrogen peroxide 2 mL/L, sodium metabisulfite 2 × 10<SUP>-3

More

Application of Eh–pH Diagram for Activation of Depressed

Potential–pH diagrams for a chalcopyrite–xanthate–H 2 O and chalcopyrite–NaCN–H 2 O systems at 298 K were constructed to predict depressing components in the flotation of depressed chalcopyrite in cyanidation tailings using xanthate as a collector. Sodium hypochlorite, hydrogen peroxide, and copper sulfate were used as activators to reduce this depression effect, and the potential

More

An Alternative Circuit for Chalcopyrite-Pyrite Ores with

The chalcopyrite and pyrite losses in the tailing from the rougher circuit were the same for both bulk and sequential roughing (less than six per cent). In cleaning (bulk circuit), the effective pH for pyrite depression was 11.8–11.9; copper recovery was 70–75 per cent (grade of 15–20 per cent copper) and the sulfur recovery (pyrite

More

Jinhong Zhang Mining and Geological Engineering The

Applying an Atomic Force Microscopy in the Study of Mineral Flotation. In Microscopy: Science, Technology, Applications and Education(pp 2028-2034). ISBN-13: 978-84-614-6191-2: Formatex Research Center. Journals/Publications. Zhang, J., & An, D. (2020). A Study of Temperature Effect on the Xanthate’s Performance during Chalcopyrite Flotation.

More

Interaction effects of flotation reagents for SAG mill

Mar 01, 2021· Key words: flotation; copper sulphide; reagent; interaction effect; reject ore 1 Introduction Chalcopyrite as the most important copper sulphide mineral, is usually separated from gangue minerals such as pyrite by the froth flotation process [1,2]. Clayey contamination may significantly affect the beneficiation of copper sulphide resources.

More