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effect of conditioning time on flotation process eck

The Effect of Conditioning on the Flotation of Pyrrhotite

In addition, in regard to the flotation tests examining the effect of conditioning time on the pyrrhotite recovery under the conditioning speed of 2000 rpm, the similar results obtained show that the best flotation performance was achieved under the conditioning time of 5 min. Overall, a longer conditioning time decreased flotation recovery (Figure 7).

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effect of conditioning time on flotation process

The Effects of Conditioning Time on the Flotation of In this investigation, the flotation behavior of oxidized coal affected by the conditioning time separated into two periods: prewetting time and collector conditioning time, were discussed. The prewetting time is 0 min, 1 min, 2 min, 3 min, 4 min, and 5 min, respectively.

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The effect of conditioning on Froth Flotation

THE EFFECT OF CONDITIONING ON FROTH FLOTATION A thesis submitted to the UNNERSITY OF CAPE TOWN in fulfilment of the requirements for the degree of MASTER OF SCIENCE IN ENGINEERING by Daryl Henwood, B.Sc. (Chem Eng) (Cape Town) Department of Chemical Engineering University of Cape Town Rondebosch 7700 Sou th Africa ,. July 1994 . The copyright of

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Determination of Optimum Parameters for Flotation of

31/01/2019· Effect of Conditioning Time on Flotation Recovery. The success of the flotation process is largely determined by the interaction of xanthates with the target mineral particles and is mainly dependent on the characteristics of the xanthate and mineral, pH, conditioning time, collector concentration, and so forth. 35 Thus, in order to determine the effect of conditioning time on flotation

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The Effect of Conditioning on the Flotation of Pyrrhotite

period of time and at a given speed. To test the effects of chlorite on the flotation performance of pyrrhotite, chlorite was added at the beginning of the conditioning process. Control tests were conducted by introducing nitrogen into the pulp throughout the conditioning process to examine the effects of natural atmosphere on pyrrhotite

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The effect of conditioning on froth flotation

The effect of conditioning on froth flotation Login All of OpenUCT Open Education Resources Other Publications Research Outputs Theses / Dissertations Search

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The Effects of Conditioning Time on the Flotation of

In this investigation, the flotation behavior of oxidized coal affected by the conditioning time separated into two periods: prewetting time and collector conditioning time, were discussed. The prewetting time is 0 min, 1 min, 2 min, 3 min, 4 min, and 5 min, respectively. The collector conditioning time is 1 min, 2 min, 3 min, 4 min, 5 min, and 6 min, respectively.

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The effect of conditioning on froth flotation CORE

The effect of conditioning on froth flotation . By Daryl Henwood. Download PDF (4 MB) Abstract. Bibliography: pages 154-159.The method and extent to which mineral slurries are conditioned have been shown to greatly affect flotation grades and recovery. Most of this work is very mineral specific and centres around one or two operating variables. One of the major obstacles to understanding the

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Effect of temperature on the kinetics of froth flotation

01/04/1994· The effect of temperature on froth flotation is very complicated and could be the cumulative effects of contact angle values of the particles, interfacial tensions, adsorption rate and density of surfactant at interfaces, induction time, kinetics of expansion of the three-phase contact line. 503 504 Technical Note In the present work the effect of temperature on flotation kinetics is studied

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EFFECT OF THE PARTICLE SIZE ON FLOTATION PERFORMANCE OF

EFFECT OF THE PARTICLE SIZE ON FLOTATION PERFORMANCE OF A SILICEOUS LIMESTONE SAMPLE D. S. Rao#, T. V. Vijaya Kumar, G. Bhaskar Raju and S. Prabhakar National Metallurgical Laboratory Madras

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Study of the effect of particle size on flotation process

Study of the effect of particle size on flotation process. Article (PDF Available) in Rem Revista Escola de Minas 61(4):473-477 · December 2008 with 52

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Effect and mechanism of Cu(II) on flotation separation of

01/05/2020· The effect and mechanism of Cu(II) on the flotation separation of cassiterite from fluorite using styrene phosphonic acid (SPA) as a collector were investigated by flotation tests, zeta potential measurements, X-ray photoelectron spectroscopy (XPS) analysis and density function theory (DFT) calculations. SPA showed good collecting ability for both cassiterite and

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The effect of coarse gangue particles during the coal

(2016). The effect of coarse gangue particles during the coal flotation process. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects: Vol. 38, No

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1 Froth Flotation Fundamental Principles

study the effects of any single factor in isolation, and compensation effects within the system can keep process changes from producing the expected effects (Klimpel, 1995). This makes it difficult to develop predictive models for froth flotation, although work is being done to develop simple models that can predict the performance of the circuit from easily-measurable

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Recycling of process water Effect of calcium and sulphate

The effects of major components of calcium and sulphate ions in process water on sulphide mineral flotation has been investigated through Hallimond flotation of pure sulphide minerals using tapwater and water containing sulphate and calcium ions as well as through bench scale flotation of complex sulphide ores using tapwater and process water and with tapwater in the

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The Effect of Ultrasound Pre-Treatment on Froth Flotation

the flotation unit. Three different experiments were conducted, one with the pre-treatment of ultrasound prior to flotation, second without the pre-treatment and the third with ultrasonic and flotation operating simultaneously. Frother type A845 0.15ml/l was use for every sample and 3 minutes conditioning time was applied to the pulp. Sample

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Effect of grinding media-chalcopyrite interaction on the

01/11/1991· Effect of conditioning atmosphere on chalcopyrite floatability after nitrogen-purged high- carbon steel grinding at pH 11.5 and air flotation at pH I 1.0 in simulated process water. air for 10 min prior to flotation. After oxygen conditioning, chalcopyrite floated more rapidly, and the recovery after 8 rain of flotation increased 3- 4%. The flotation pulp potential was very similar

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Flotation of sphalerite and pyrite in the presence of

obtained by conditioning the minerals with oxygen and by decreasing the time interval between sulfite and xanthate additions. The results of spectroscopic studies have shown that sodium sulfite promotes the oxidation of copper on pyrite as copper hydroxide, but has no effect on sphalerite. This increase in the amount of oxidation products on the pyrite surface and, as a result,

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RECYCLING PROCESS WATER IN COMPLEX SULPHIDE ORE FLOTATION

Calcium and sulphate ions are two very common components in the process water from flotation of sulphide minerals. The origins of calcium and sulphate species in process water are the ore and flotation reagents, such as lime for maintaining pH and NaHSO. 3. for controlling the surface properties (Broman, 1980). Previous studies dealt with the effect of calcium and sulphate ions

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University of Alberta

lowered bitumen recovery for a long flotation time (30 min). Longer slurry conditioning time led to a better bitumen froth quality regardless of flotation time. However the over conditioning could be compensated by higher conditioning temperatures and higher slurry flow velocities. Tests with the Denver flotation cell show that the increase in slurry conditioning time

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