copper sulphide flotation optimization tests

Development and optimization of mixed sulphide/oxide ...

Dec 03, 2020· Optimization of Cu–Zn Massive Sulphide Flotation by Selective ... in the sorting process of copper sulfide ore, this method of dosing does not effectively separate sulfide minerals and layered ...

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Resultant flotation kinetics parameters for both ore though a higher pH value (i.e. pH>11) was used in types using the first-order flotation kinetics model. the flotation experiments to separate valuable copper High pyritic ore type Low pyritic ore type sulphide minerals from pyrite, still pyrite particles Cu Fe Cu Fe floated.

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Increase Gold recovery in Copper flotation

Optimization of a Copper/Molybdenum Flotation Circuit by Depressing Pyrite from ... copper and reject iron to establish a base test to compare other reagent schemes with. ... comes from copper sulfide ores, and, at lower recoveries from porphyry copper ores (4).

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Copper sulfide flotation under acidic conditions using a ...

Apr 12, 2019· The aim of this study is to apply process mineralogy as a practical tool for further understanding and predicting the flotation kinetics of the copper sulfide minerals. The minerals' composition and association, grain distribution, and liberation within the ore samples were analyzed in the feed, concentrate, and the tailings of the flotation processes with two …

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Flotation of Nickel

A carefully planned laboratory test program is the foundation for the successful development of a sulfide flotation process. In this paper, the development of a copper-molybdenum flotation process is described. However, the concepts discussed can be applied to most sulfide flotation systems and to many industrial minerals projects as well. Each step is examined, beginning …

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Lime use and functionality in sulphide mineral flotation ...

Resultant flotation kinetics parameters for both ore though a higher pH value (i.e. pH>11) was used in types using the first-order flotation kinetics model. the flotation experiments to separate valuable copper High pyritic ore type Low pyritic ore type sulphide minerals from pyrite, still pyrite particles Cu Fe Cu Fe floated.

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Flotation of mixed copper oxide and sulphide minerals with ...

Copper oxide is more difficult to recover than copper sulfide. Presently, the three main treatment methods of copper oxide are flotation [2,3], leaching [4], and beneficiation-metallurgy combination processes [5]. The flotation method can be divided into the two following types: direct flotation and sulfidation–xanthate flotation.

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Improve coarse particle flotation using Eriez Hydrofloat ...

The wettability and floatability of oxidized chalcocite, bornite, and chalcopyrite with the conditions of sodium hydrosulfide (NaHS) dosages and pHs were studied by contact angle measurements, and single and mixture mineral flotation tests. To evaluate the results of the flotation, the flotation kinetic model for copper sulfide minerals treated by NaHS was derived.

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Copper Gold Sulfide Ore

The copper ore flotation method summarized by Prominer Shanghai can be divided into different technical schemes: (1) Sulfuration flotation method. Add a sulfiding agent to sulfide the oxide ore, and then use the formula of ordinary copper sulfide flotation for flotation. This method is suitable for processing malachite, azurite, and chlorocopper ore, and is more commonly […]

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(PDF) Development and optimization of mixed sulphide/oxide ...

Lock-cycle flotation testing of the Master Composite yielded a saleable flotation concentrate that assayed 21.5% copper, 170 g/t gold, 93 g/t silver and 0.64% molybdenum. Despite the lower copper grade of the Master Composite versus the 2018 testing grade of 0.25% copper, the resulting copper concentrate end product was similar in quality and ...

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Optimization of Cu–Zn Massive Sulphide Flotation by ...

Most recently, potential applications of this innovative technology in the sulphide minerals industry have been considered. This was demonstrated through multiple test programs on both copper and gold which clearly show a high degree of …

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Optimization of chlorite and talc flotation using ...

Nov 01, 2019· At Silver Queen mine (Canada) a combined lime-starch-SO 2 conditioning scheme is used for copper flotation from the Pb/Zn sulphides (Bulatovic, 2007b). In the process, lime (1200 g/t) and starch (200 g/t) are used first, at pH 10.5–11.2, after which the pH is reduced to 5.5 with SO 2 (200 g/t) and the copper sulphide floated.

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Process mineralogy as a key factor affecting the flotation ...

A low-grade sulfide ore was used with a copper grade of 0.25%, which was about 28% of the mineral oxide, and the sulfide minerals made up the rest. Much more sulfide minerals were found to be pyrite and most of the gangue minerals were quartz, anorthite, biotite, and muscovite. In order to investigate, simultaneously, the solids (10 to 20%) and ...

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(PDF) A study on selective flotation in low and high ...

FLOTATION OF COPPER SULFIDE ORES Free Patents Online. Dec 25, 1973The ore is a sulfide copper ore containing heads of approximately copper 0.45, iron 3.5, molybdenum 0.006, and zinc 0.06 per ore sample. Prior flotation of this ore has employed, in the flotation cell, the addition of pine oil as required to optimize froth, ordinarily resulting ...

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Flotation of Nickel

copper flotation, mixed sulphide/oxide ore, controlled potential ... Development and optimization of mixed sulphide/oxide copper ore treatment at Kansanshi ... The flotation tests were done using ...

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Stepwise Utilization Process to Recover Valuable ...

Jan 20, 2020· The common flotation parameters reported by others include pH, collector addition or dosage and type, flotation time, and depressants. These are important factors that can increase the percent recovery of Cu, regardless of the types of copper sulfide used in the flotation process [].A range of parameters were selected for experimental design with regard …

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(PDF) A study on selective flotation in low and high ...

flotation of copper oxide or mixed ores is sulphidization, which was first developed with industrial success on Pb–Zn oxide ores in Review, evolution, and optimization of the treatment of Kansanshi mixed copper ore by C. Ngulube*, C. Chongo*, and F.X. Paquot* .2&,3, Over the last six years, the Kansanshi copper-gold mine has continued to

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HSC Sim® simulation model of the Assarel copper …

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Flotation. OR Select a Topic that Interests you. Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. Use Add Comment = to …

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US4090867A

sulphide minerals. Prior to the flotation tests, samples of 500 g were milled in 250 ml of Marrakech drinking water using a Denver carbon-steel ball mill. The size fractions studied in this work were d 80 = 60, 120, and 180 μm. Flotation experiments Flotation tests were carried out on 500 g samples of milled ore

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[PDF] Flotation of a copper sulphide ore from Okiep using ...

Copper grade–recovery relationship from the rougher scavenger flotation Fig. 2. Flotation response for copper sulphide composite using PAX as the copper test for the copper oxide composite. Total AM28 and MIBC doses for both Tests A collector. Total PAX and MIBC doses were 14 g/t and 48 g/t, respectively.

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Response Surface Methodology for Optimization of …

copper flotation, mixed sulphide/oxide ore, controlled potential ... Development and optimization of mixed sulphide/oxide copper ore treatment at Kansanshi ... The flotation tests were done using ...

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(PDF) Flotation of an Oxidized Copper Sulfide Ore

Mar 01, 2009· Addition of PAX was used to float the sulphide copper and AM28 to float oxide copper at the same time. The pH of the pulp for flotation was the natural pH of the ground ore, at approximately pH 8.1. The conditioning and flotation times to collect each concentrate were the same as used in the sulphide batch flotation tests.

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Laboratory testing for sulfide flotation process ...

Batch flotation tests were used to assess the performance in terms of mass-water recovery, sulphur grade-recovery and copper grade-recovery relationships and the Klimpel rate constant for copper recovery. The results showed that the di-ethyl-dithiocarbamate (di C2-DTC) was the weakest collector of copper sulphide minerals.

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(PDF) Optimization of Cu–Zn Massive Sulphide Flotation by ...

methods, comminution and flotation of the copper ore and biochemical heap leaching of the low-grade overburden. The Assarel concentrator processes about 14 Mt of copper ore per year with an average grade of 0.32% Cu. The flotation process is performed in two stages – bulk sulfide flotation and selective copper

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(PDF) Optimization of Cu–Zn Massive Sulphide Flotation by ...

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

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(PDF) Flotation of mixed copper oxide and sulphide ...

Table of ContentsPreliminary Cyanidation TestsFlotation of CopperFlotation of Gold with Copper"Scavenger" Flotation of ColdCyanidation of Fl0tation ProductsCyanidation of Copper Flotation TailingCyanidation of "Scavenger" Concentrates Grinding the ore to minus 100-mesh gave satisfactory liberation of the minerals. Standard flotation procedure with potassium ethyl …

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Effect of pulp potential on the flotation of a sulfide ...

The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used conventional methodologies does not allow the interactional effects of critical parameters in the flotation processes to be investigated, which is mostly overlooked in the literature.

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