The Kaolin Residue and Its Use for Production of Mullite Bodies

Brasileiro, Maria Isabel; Rodrigues, A.W.B.; Menezes, Romualdo Rodrigues; Neves, G. A.; Santana, Lisiane Navarro de Lima

doi:10.5772/18031

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…Vieira et al [35] successfully sintered schist waste to produce a mullite composite with excellent mechanical properties. Similar to schist waste, thousands of tons of kaolin Besides the above-mentioned wastes, a few other wastes have also been investigated, such as schist waste [35], Kaolin waste [36,37], rice husk silica [38,39], sago waste [40], and silica fume waste [41]. Schist is a medium grade metamorphic rock which is often used as tiles for flooring.…”

Section: Starting Materialsmentioning

confidence: 99%

“…Similar to schist waste, thousands of tons of kaolin waste are also produced each day in mining and mineral beneficiation. In the study of kaolin waste utilization, Brasileiro et al [36] reported that the formation of secondary mullite with improved properties can be obtained from microwave sintering kaolin waste in mixtures with alumina. The utilization of agricultural wastes such as rice husk silica and sago waste as mullite precursor were found to be feasible too.…”

Section: Starting Materialsmentioning

confidence: 99%

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A Review on Synthesis of Mullite Ceramics from Industrial Wastes

et al. 2019

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Some industrial wastes are shown to be useful in the production of mullite ceramics. These industrial wastes are rich in certain metal oxides such as silica (SiO2) and alumina (Al2O3). This gives wastes the potential to be used as a starting material source for mullite ceramics preparation. The purpose of this review paper is to compile and review various mullite ceramics preparation methods that utilized a variety of industrial wastes as starting materials. This review also describes the sintering temperatures and chemical additives used in the preparation and its effects. A comparison of both mechanical strength and thermal expansion of the reported mullite ceramics prepared from various industrial wastes were also addressed in this work.

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Section: Starting Materialsmentioning

confidence: 99%

Section: Starting Materialsmentioning

confidence: 99%

A Review on Synthesis of Mullite Ceramics from Industrial Wastes

et al. 2019

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“…Therefore, once extracted, kaolin goes through a beneficiation process that includes successive washing, crushing, drying and grinding steps. As a consequence of this process, a large amount of waste is generated, estimated at around 80% to 90% of the total volume of the exploited mineral [128]. This fact has prompted various investigations focused on the recovery of waste originating from the extraction of kaolin as a raw material in the manufacture of zeolites [129,130], molecular sieves [131] or cordierite [132].…”

Section: Kaolin Processing Wastementioning

confidence: 99%

Mullite-Based Ceramics from Mining Waste: A Review

et al. 2021

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Mullite (3Al2O3·2SiO2) is an aluminosilicate characterized by excellent physical properties, which makes it an important ceramic material. In this way, ceramics based on mullite find applications in different technological fields as refractory material (metallurgy, glass, ceramics, etc.), matrix in composite materials for high temperature applications, substrate in multilayer packaging, protective coatings, components of turbine engines, windows transparent to infrared radiation, etc. However, mullite is scarce in nature so it has to be manufactured through different synthesis methods, such as sintering, melting-crystallization or through a sol-gel route. Commonly, mullite is fabricated from pure technical grade raw materials, making the manufacturing process expensive. An alternative to lowering the cost is the use of mining waste as silica (SiO2) and alumina (Al2O3) feedstock, which are the necessary chemical compounds required to manufacture mullite ceramics. In addition to the economic benefits, the use of mining waste brings out environmental benefits as it prevents the over-exploitation of natural resources and reduces the volume of mining waste that needs to be managed. This article reviews the scientific studies carried out in order to use waste (steriles and tailings) generated in mining activities for the manufacture of clay-based ceramic materials containing mullite as a main crystalline phase.

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Investigative studies for inert transformation of toxic chrysotile tailing

Zhu

Wang

et al. 2012

J Mater Cycles Waste Manag

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The Kaolin Residue and Its Use for Production of Mullite Bodies

Cited by 4 publications

References 27 publications

A Review on Synthesis of Mullite Ceramics from Industrial Wastes

A Review on Synthesis of Mullite Ceramics from Industrial Wastes

Mullite-Based Ceramics from Mining Waste: A Review

Investigative studies for inert transformation of toxic chrysotile tailing

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