Usability of Malatya Pyrophyllite in the Traditional Ceramic Industry

Kizilkaya, Nilgun; Önal, Mehmet; Depçi̇, Tolga; Yücel, Ayşegül Atak

doi:10.1088/1755-1315/44/5/052007

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…• Required size -44 microns (Jeong et al, 2017;Kizilkaya et al, 2016.;Kogel et al, 2006;Pradhan et al, 2015) Fiber glass grade Bentayeb et al, 2003;Li, 2014;Pradhan et al, 2015) Cosmetic grade Kostadinović et al, 2019;Chatterjee, 2009;Kogel et al, 2006) Filler grade (Paper, plastic, paint) (Chatterjee , 2009;Gill ,2004, 2016;Kogel et al , 2006;MCHAFFIE et al, 1995 For grade B, several treatment scenarios can be proposed based on the characterization results, which can be discussed as follows:…”

Section: Table 2 Different Pyrophyllite Grades Specifications Smentioning

confidence: 99%

Chemical and Mineralogical Characterization of Saudi-Pyrophyllite ore and its Potential Applications

Ali

2021

AGJSR

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Purpose: Due to the importance of pyrophyllite as an economical alternative to several minerals such as kaolin, talc, and feldspar in different industrial applications, there is an intention in Saudi Arabia to exploit pyrophyllite in the industry. Since there were no sufficient studies conducted to characterize pyrophyllite in Saudi Arabia, this paper aims to study the chemical and mineralogical characterization of Saudi pyrophyllite ore grades and propose its potential applications besides proposing beneficiation strategies for the low-grade one. Method: In this study, two different grades pyrophyllite ore samples, from a pyrophyllite deposit in western Saudi Arabia, were characterized for their potential applications. Microscopic studies, X-ray fluorescence (XRF), scanning electron microscope coupled with energy dispersive X-ray (SEM-EDX), X-ray diffraction (XRD) were used for chemical and mineralogical characterization of the studied samples. Results: Microscope and XRD results have shown that the ore samples (labeled grade A and grade B) consist mainly of pyrophyllite associated with quartz and feldspar in addition to minor amounts of muscovite, chlorite, and siderite as impurity minerals. Moreover, the results indicated that the impurities are oxide and sulfide minerals (i.e., pyrite, hematite). According to XRF analysis results, grade A contains high alumina (27.03% Al2O3) and low iron (0.4% Fe2O3) whereas; grade B contains a high iron content (2.06% Fe2O3) and lower alumina (24.05 % Al2O2). It is predicted that the grade A with high alumina content can be used directly in fillers, refractories, fiberglass, whiteware ceramics, white cement, porcelain, and cosmetic applications. As for grade B, high iron content limits its industrial applications. Therefore, it needs to be treated to remove ferrous impurities before supply to pyrophyllite market. Conclusion: Based on analytical results, grade A with high alumina content can be used directly in fillers, refractories, fiberglass, whiteware ceramics, white cement, porcelain, and cosmetic applications. Furthermore, grade B needs to upgrade due to high iron content before being used in the industry.

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Section: Table 2 Different Pyrophyllite Grades Specifications Smentioning

confidence: 99%

Chemical and Mineralogical Characterization of Saudi-Pyrophyllite ore and its Potential Applications

Ali

2021

AGJSR

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“…The presence of these silicates in products is not desirable, especially in the ceramic industry. Furthermore, alkali ions are electrically conductive [22,23].…”

Section: Introductionmentioning

confidence: 99%

Pyrophyllite: An Economic Mineral for Different Industrial Applications

Ali

Ahmed

et al. 2021

Applied Sciences

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Pyrophyllite (Al2Si4O10(OH)2) is a phyllosilicate often associated with quartz, mica, kaolinite, epidote, and rutile minerals. In its pure state, pyrophyllite exhibits unique properties such as low thermal and electrical conductivity, high refractive behavior, low expansion coefficient, chemical inertness, and high resistance to corrosion by molten metals and gases. These properties make it desirable in different industries such as refractory; ceramic, fiberglass, and cosmetic industries; as filler in the paper, plastic, paint, and pesticide industries; as soil conditioner in the fertilizer industry; and as a dusting agent in the rubber and roofing industries. Pyrophyllite can also serve as an economical alternative in many industrial applications to different minerals as kaolinite, talc, and feldspar. To increase its market value, pyrophyllite must have high alumina (Al2O3) content, remain free of any impurities, and possess as much whiteness as possible. This paper presented a review of pyrophyllite’s industrial applications, its important exploitable properties, and the specifications required for its use in industry. It also presents the most effective and economical techniques for enriching low-grade pyrophyllite ores to make them suitable for various industrial applications.

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Mechanical properties of high strength concrete made with pyrophyllite aggregates exposed to high temperature

Demez

Karakoç

2020

Structural Concrete

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This paper presents the results of an experimental research on the assessment of the residual mechanical properties of high strength concretes (HSCs) made with pyrophyllite aggregate (PA) after high temperature. In the study, HSC mixtures with varying PA ratios (0, 25, 50, 75, and 100%) were subjected to elevated temperature (150, 300, 450, 600, and 750°C) and then cooled in two different cooling regimes (air and water‐cooling). The properties examined included compressive strength, weight loss, effects of cooling regime, and microstructure of HSC. The results of the study show that the increase in the PA ratios leads to a decrease in the compressive strength values. The results showed that weight loss of the specimens decreased with increasing PA ratios. It was found that the compressive strength values of HSC with PA cooled in air‐cooling are higher than that cooled in water. When the compressive strength loss and the weight loss values are taken into consideration according to the control samples, the group with the highest resistance to high temperature (750°C) effect was 100% PA group. Also, the internal structures of the samples exposed to high temperature were examined using scanning electron microscope and visual observations.

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Usability of Malatya Pyrophyllite in the Traditional Ceramic Industry

Cited by 5 publications

References 3 publications

Chemical and Mineralogical Characterization of Saudi-Pyrophyllite ore and its Potential Applications

Chemical and Mineralogical Characterization of Saudi-Pyrophyllite ore and its Potential Applications

Pyrophyllite: An Economic Mineral for Different Industrial Applications

Mechanical properties of high strength concrete made with pyrophyllite aggregates exposed to high temperature

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