Well-crystallized kaolinites, with higher Hinckley indices and lower aspect ratios, have relatively smooth, flat basal surfaces and thicker edge planes promoting both effective …
To investigate the effect of slimes on the flotation recovery and kinetics of coal particles, batch flotation and flotation rate tests were carried out using flotation mixtures including slime ...
The flotation experiments were planned to evaluate the flotation performance of the gold ore in the presence of clays in order to investigate the effect of clay type on the flotation recovery considering solid concentrations of clays, and operating variables such as air flow rate, pulp pH, and polyacrylate based dispersant (Cytec …
To investigate the effect of kaolin particles on the flotation performance and froth stability of different particle sizes of bastnaesite, batch flotation tests and froth stability experiments were performed. ... Zhang, M. and Peng, Y., Effect of clay minerals on pulp rheology and the flotation of copper and gold minerals, Miner. Eng., 2015 ...
It was found that kaolinite had a negative effect on copper and gold grades of flotation concentrates in fresh water due to the aggregation of clay platelets in the pulp …
TLDR. The intensified self-aggregation of Kaolinite platelets which appears to be induced by the presence of NBs reduces the solid–liquid interfacial area as well as …
The minerals contained in natural kaolin are mainly divided into clay and non-clay minerals. Clay minerals: mainly contain kaolinite minerals and a small amount of montmorillonite, mica and chlorite; Non-clay minerals: Mainly contain hydrates of feldspar, quartz and calcium. Iron minerals such as hematite, siderite, limonite, etc., titanium …
Fig. 8 shows the effect of clay minerals on gold flotation recovery and apparent viscosity of flotation slurries. Without the addition of any clay mineral, 77% gold recovery was obtained from the flotation of the clean ore. ... Differences in the rheology and surface chemistry of kaolin clay slurries: the source of the variations. Chem. Eng ...
Clay coating did not occur on gold surface and was not related to poor gold flotation. • Clay minerals increased pulp viscosity, which was responsible for the low …
negative effect on gold flotation. Use of lime often results in the depression of native gold and gold-bearing sulphides. The optimum flotation pH ranges between 8.5 and 10.0. The type of frother also plays an important role in the …
The floatability of gold from gold-containing copper gold ores depends on the nature and occurrence of gold in these ores, and its association with iron sulphides. Gold in the …
This paper is one of a series addressing the problem caused by clay minerals in copper–gold flotation. This study seeks to understand the rheological behaviour of kaolinite and bentonite suspensions at natural pH and how the pH modifier, collector and frother normally used in copper–gold flotation affect the rheological properties.
In this study, PAX and Interfroth 6500 were selected to represent collectors and frothers normally used in copper–gold flotation and their effects on the rheological …
In order to find a better collector for the separation of carbon and kaolin from coal gangue flotation, and to explore the action mechanism of collectors, this paper selected 12 kinds of collectors for systematic comparison, including five non-polar organics with different carbon chain lengths, and polar organic matters with double bonds, triple …
It was found that bentonite had a deleterious effect on copper and gold flotation in tap water, but this deleterious effect was mitigated in sea water. ... Influence of calcium and sodium concentration on the microstructure of bentonite and kaolin. Clays Clay Miner., 38 (1990), pp. 617-622. View in Scopus Google Scholar. Switzer et al., 2004.
DOI: 10.1016/J.MINENG.2016.06.012 Corpus ID: 100420020; The role of cations in copper flotation in the presence of bentonite @article{Wang2016TheRO, title={The role of cations in copper flotation in the presence of bentonite}, author={Yanhong Wang and Yongjun Peng and T. M. Nicholson and Rolf Andreas Lauten}, journal={Minerals Engineering}, …
Semantic Scholar extracted view of "Effect of particle size on flotation performance of complex sulphide ores" by D. Feng et al.
DOI: 10.1016/J.MINENG.2014.08.014 Corpus ID: 98023270; Effect of clay minerals on pulp rheology and the flotation of copper and gold minerals @article{Zhang2015EffectOC, title={Effect of clay minerals on pulp rheology and the flotation of copper and gold minerals}, author={Ming Zhang and Yongjun Peng}, journal={Minerals Engineering}, …
DOI: 10.1016/J.MINENG.2018.06.021 Corpus ID: 103072302; Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer @article{Liu2018MitigatingTN, title={Mitigating the negative effects of clay minerals on gold flotation by a lignosulfonate-based biopolymer}, author={Shiqi Liu and Xumeng …
The current study found that the entrainment was high in the flotation of a copper–gold ore in the presence of kaolinite, resulting in low copper and gold grades in flotation concentrates. The deleterious effect of kaolinite on the flotation was exaggerated when fresh water was replaced by sea water as evidenced by the elevated transport of ...
DOI: 10.1016/j.powtec.2019.12.015 Corpus ID: 212850994; Effect of bulk nanobubbles on the entrainment of kaolinite particles in flotation @article{Lei2020EffectOB, title={Effect of bulk nanobubbles on the entrainment of kaolinite particles in flotation}, author={Wang Lei and Ming Zhang and Zhenxin Zhang and Ni …
To improve the rough flotation effect, the following technological measures can be taken: (1) Use a collector with strong collecting power, or add auxiliary collectors such as kerosene and diesel …
The iron removal and purification of kaolin can be described as an important means to improve the added value and application effect of kaolin. Use flotation, magnetic separation or oxidation and other beneficiation to remove iron to achieve the ideal purification effect.
It was found that kaolinite had a negative effect on copper and gold grades of flotation concentrates in fresh water due to the aggregation of clay platelets in the pulp and the transport of clay ...
A laboratory-scale investigation was conducted to study the effects of flotation reagents and clay minerals on the recovery of electrum from the ore treated at the Dundee Precious Metals Krumovgrad operation. The first part of the study focused on assaying the impact of clays on gold flotation by conducting desliming tests prior to …
From these different phenomena, the ultrasonic effects are classified into three types of effect: the transient cavitation effect, stable cavitation effect, and acoustic …
The different effects of bentonite and kaolin on copper flotation. Appl. Clay Sci. (2015) J. Yan et al. The yield surface of viscoelastic and plastic fluids in a vane viscometer ... The first part of the study focused on assaying the impact of clays on gold flotation by conducting desliming tests prior to flotation. It was observed that when a ...
To investigate the effect of kaolin particles on the flotation performance and froth stability of different particle sizes of bastnaesite, batch flotation tests and froth stability experiments were performed. The results demonstrated that poor froth stability of the coarse particle size bastnaesite led to poor flotation recovery. The medium particle …
1. Magnetic separation methods. Magnetic separation is the primary physical iron removal method.Iron mineral impurities in kaolin usually have weak magnetic properties and can be removed by …
Clay minerals are phyllosilicate minerals, with kaolinite and montmorillonite as two typical common gangue minerals, which are the major challenges in the flotation …
Clay minerals are phyllosilicate minerals, with kaolinite and montmorillonite as two typical common gangue minerals, which are the major challenges in the flotation of low-grade minerals. This paper analyzes the effect of clay mineral structure and physicochemical properties on flotation and the mechanism, and summarizes common …