Grinding kinetics of quartz and chlorite in wet ball milling

Zhao, Ruichao; Han, Yuexin; He, Mingzhao; Li, Yanjun

doi:10.1016/j.powtec.2016.07.050

Cited by 52 publications

(19 citation statements)

References 22 publications

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“…The hardness of composites increases with increasing CMW% fraction, that is, the material becomes more rigid (Kashyap and Datta 2017), and the mechanical resistance to penetration of another body increases. This is related to the greater hardness of the CMW particle as it is mainly composed of quartz (Supplementary Material-Figure S2), a mineral considered to be hard (Zhao et al 2017) and the greater the fraction of CMW in the composites, the greater the probability of these are hit by another body at the time of the test.…”

Section: Shore D Hardnessmentioning

confidence: 99%

Mechanical and Thermal Behavior of Recycled Low-Density Polyethylene Composites with Coal Mining Waste

Gryczak

Petzhold

2021

Mater Circ Econ

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The mining process in a coal industry is responsible for a large environmental impact, 60% of the total extracted are discarded and sent to a controlled dam due to its potential toxicological effect when exposed to the environment. On the other hand, polymer consumption has grown at an annual rate of 5%, exceeding 300 million tons/year. Therefore, the main objective of this work is the preparation of a composite using recycled low-density polyethylene polymer and coal mining waste, aiming to improve mechanical and thermal properties and mitigate the environmental impacts. Composites in fractions between 20 and 80% wt coal mining waste were prepared and characterized. Formulations with up to 60% of coal mining waste showed properties of interest for the development of new materials in civil and architectural construction.

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Section: Shore D Hardnessmentioning

confidence: 99%

Mechanical and Thermal Behavior of Recycled Low-Density Polyethylene Composites with Coal Mining Waste

Gryczak

Petzhold

2021

Mater Circ Econ

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“…Heterogeneity in feed constituents can be presented by the presence of two minerals with different physical properties in the mill feed, or differences in the size distribution of the feed constituents. Hence, the study of mixture grinding can be classified into two categories [2], one in which the grinding of a mixture of a single size fraction of two minerals with different physical properties [8][9][10], and the other category in which a coarse size fraction is ground with fine particles of the same mineral [2,8]. Studies on the grinding kinetics of mixtures of two minerals with different physical properties have been performed wet by Zhao et al [8] and dry by Kapur and Fuerstenau [9].…”

Section: Introductionmentioning

confidence: 99%

“…Hence, the study of mixture grinding can be classified into two categories [2], one in which the grinding of a mixture of a single size fraction of two minerals with different physical properties [8][9][10], and the other category in which a coarse size fraction is ground with fine particles of the same mineral [2,8]. Studies on the grinding kinetics of mixtures of two minerals with different physical properties have been performed wet by Zhao et al [8] and dry by Kapur and Fuerstenau [9]. Kapur and Fuerstenau studied the energetics and kinetics of mixture grinding by using the energy split factor.…”

Section: Introductionmentioning

confidence: 99%

The Preferential Comminution of Binary Mixtures

rizk

2021

JES. Journal of Engineering Sciences

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Representative samples of limestone, ilmenite, and quartz, were dry batch ground separately and in binary mixtures of limestone-ilmenite and limestonequartz in different compositions in the ball mill. The study aimed to investigate the effect of the feed mixture composition on the mill product characteristics as reflected on each of the two components. The results indicated that quartz affects as a tough, hard component more than the ilmenite as a heavy component on the grindability of limestone in their mixtures. Such behavior may be attributed to the ability of quartz to transfer the kinetic energy of the grinding media to limestone component more than ilmenite, which increases the preferential comminution of limestone by quartz more than that by ilmenite.

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“…Batch wet grinding studies were carried out by grinding of mono-sized fractions of quartz, chlorite binary mixture at different blending ratios [14]. The results obtained indicate that the breakage behavior of both minerals as well as their mixture followed a first order model.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Cushioning Effect of Clay on the Comminution of the Cement Raw Meal

rizk

2019

JES. Journal of Engineering Sciences

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Growth and success of any industry on the whole, depends primarily on the market demands, efficient technology and availability of input resources. In spite of development of different types of binders, cement continues to be the major building material for civil construction all over the world, as no other material is likely to substitute it in the near future. The normal flow sheet for cement production, either by dry or wet operations begins with crushing of the two main components. Either limestone or shale are crushed separately then, ground simultaneously as a mixture (80% limestone and 20% shale) in a ball mill. This procedure consumes more energy in grinding due to the act of the shale as cushions between the grinding elements (balls) and the crushed limestone particles. Consequently, the main objective of this investigation is to evaluate the cushioning effect of the shale during grinding the limestone and shale simultaneously as a mixture. It is confirmed that grinding the two components of the cement raw meal simultaneously as a mixture decreases the specific surface area of the product by 25% approximately. The relative suggestion is to grind these two components of the raw meal separately followed by adding blending unit before going to calciner.

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Grinding kinetics of quartz and chlorite in wet ball milling

Cited by 52 publications

References 22 publications

Mechanical and Thermal Behavior of Recycled Low-Density Polyethylene Composites with Coal Mining Waste

Mechanical and Thermal Behavior of Recycled Low-Density Polyethylene Composites with Coal Mining Waste

The Preferential Comminution of Binary Mixtures

A Study on the Cushioning Effect of Clay on the Comminution of the Cement Raw Meal

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