Elaboration of porous gehlenite and anorthite based ceramics using low price raw materials

Zenikheri, F.; Harabi, Abdelhamid; Boudaira, B.; Bouzerara, Ferhat; Guechi, A.; Barama, S.E.; Foughali, Lazhar; Karboua, Noureddine

doi:10.1590/0366-69132016623632005

Cited by 9 publications

(7 citation statements)

References 37 publications

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“…The clay consisted mainly of aluminum silicate (Al 2 SiO 5 ), intended for the manufacture of the tubular microporous support. The method of tubular support preparation can be summarized in the following steps [28,29]:…”

Section: The Methods Of the Membrane Support And Ceramic Membrane Preparationmentioning

confidence: 99%

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Preparation of a Zirconia-Based Ceramic Membrane and Its Application for Drinking Water Treatment

et al. 2020

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This work concerns the preparation of a mineral membrane by the slip casting method based on zirconium oxide (ZrO2) and kaolin. The membrane support is produced from a mixture of clay (kaolin) and calcium carbonate (calcite) powders using heat treatment (sintering). Membrane and support characterization were performed by Scanning Electron Microscopy (SEM), X-ray Fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), and Raman Spectroscopy. The prepared mineral membrane was tested to treat drinking water obtained from different zones of the El Athmania (Algeria) water station (raw, coagulated, decanted, and bio filtered water). Experimental parameters such as permeate flux, turbidity, and total coliforms were monitored. The results showed that the mineral membrane was mainly composed of SiO2 and Al2O3 and the outer surface, which represented the membrane support, was much more porous than the inner surface where the membrane was deposited. The permeate flux of the raw water decreased with filtration time, due to a rejection of the organic matters contained in the raw water. Moreover, the absence of total coliforms in the filtrate and the increase in concentration in the concentrate indicate that the prepared mineral membrane can be used for drinking water treatment.

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Section: The Methods Of the Membrane Support And Ceramic Membrane Preparationmentioning

confidence: 99%

“…Figure 6 represents XRD reflections of the support at a temperature of 1100 • C for 1 h. The main phase identified in the membrane support was the anorthite (CaO, Al 2 O 3 , 2SiO 2 ) which was a predominant phase. This phase was very important because of its promising physical and mechanical properties [5,29].…”

Section: X-ray Diffraction (Xrd)mentioning

confidence: 99%

Preparation of a Zirconia-Based Ceramic Membrane and Its Application for Drinking Water Treatment

et al. 2020

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“…[5,44]. The particle size distribution of this material was determined by the dynamic laser beam scattering (DLBS) technique; this method gave an average particle size of 2.2 μm [45]. The kaolin powder was obtained by calcination of the final ground mineral at 520 °C for 1 h. The CaCO 3 powder was calcined at 900 °C for 12 h then hydrated in bi-distilled water and followed by a second calcination at 800 °C for 2 h. The quantitative analysis of these calcium carbonates showed that the purity of this raw material is about 99.7%, using X-ray fluorescence (XRF) analysis.…”

Section: Cerâmicas De Boa Qualidade Têm Alto Custo O Que Limita O Sementioning

confidence: 99%

“…As reported in [46], this raw material may be classified as a high-purity calcium oxide (CaO ≥99.0%). The particle size distribution of calcite was determined by DLBS, which gave an average particle size of 4.8 μm [45].…”

Section: Cerâmicas De Boa Qualidade Têm Alto Custo O Que Limita O Sementioning

confidence: 99%

Mechanical properties of anorthite based ceramics prepared from kaolin DD2 and calcite

et al. 2017

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Anorthite is widely spread in nature and belongs to the plagioclase group of rock forming minerals. Plagioclases represent a continuous series of solid solutions between anorthite (CaO.Al 2 O 3 .2SiO 2 ) and albite (Na 2 O.Al 2 O 3 .6SiO 2 ) and form an enormous group of triclinic minerals. harabi52@gmail.com, Zaiou_21@yahoo.fr, guechia@yahoo.fr, semouni84@gmail.com, kanour17@yahoo.fr, foughali_lazhar@yahoo.fr, zouaisouheila@yahoo.fr, mezahif@yahoo.fr, guerfatiha@gmail.com Mineralogically, anorthite is reported as a chemically weak mineral, resulting in a basic reaction when dissolved into boiling water, while strong acidic and basic solutions dissolve it. Glass-ceramics and ceramics with crystalline anorthite are mainly used in electrical, thermo-mechanical and water resistance applications [1][2][3][4]. Anorthite is an important technical ceramic material that has good physical properties, such as very low thermal expansion coefficient, low dielectric constant and loss, good thermal shock resistance, and high creep resistance at high AbstractGood quality ceramics costs a lot that has limited their use in developing countries. This work was devoted to prepare low-cost and good quality anorthite based ceramics. The proposed composition was 80 wt% kaolin (DD2 type) and 20 wt% calcium oxide (CaO). The choice of these raw materials was dictated by their natural abundance coupled with a modified milling system, as another interesting advantage. Previous studies have shown that a simple vibratory multidirectional milling system using bimodal distribution of highly resistant ceramic milling elements has been successfully applied for obtaining fine powders. The influence of the relatively lower sintering temperature, ranging from 800 to 1100 °C, on the porosity and the average pore size (APS) have been investigated. The APS and the porosity values of samples sintered at 950 °C were about 1 μm and 4%, respectively. The best Vickers microhardness and 3-point bending strength values for these sintered samples, using this proposed milling system, were 7.1 GPa and 203 MPa, respectively. Finally, the crystalline phase evolution during heat treatment was investigated by X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy techniques.

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“…Between 200 and 450°C, there was a mass loss of 2.8 (F20), 3.0 (F30), and 3.5% (F40) associated with the decomposition of organic matter. Between 650°C and 750°C, CaCO 3 (calcite) decomposes, releasing CO 2 and forming CaO 22,23 …”

Section: Resultsmentioning

confidence: 99%

Thermal evaluation of the use of porous ceramic plates on ventilated façades – Part I: Effect of composition and firing temperature on porosity and bending strength

Pizzatto

Angioletto

et al. 2021

Int J Applied Ceramic Tech

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The effect of composition and firing temperature on porosity and bending strength of porous ceramic plates for using in ventilated façades were investigated. Two byproducts, basalt and lime mud, were used to obtain porous ceramic plates in accordance with the circular economy concept. Basalt, which is a fine powder‐based byproduct generated from the processing of basaltic rock, was used to replace feldspar as the flux mineral in a ceramic composition. Lime mud, a byproduct of the pulp and paper mill process and containing a high content of calcium carbonate (CaCO3), was incorporated in the ceramic composition to generate pores. The specimens were prepared using three different amounts of lime mud (20, 30, and 40 wt%) and three firing temperatures (900°C, 1000°C, and 1100°C), and their porosity and bending strength were determined. The highest performing specimen (5.1 ± 1.3 MPa bending strength and 42.6 ± 0.5% porosity) was obtained by using 40 wt% of lime mud and a firing temperature of 1100°C with potential for further thermal tests in a ventilated façade in comparison with a commercial porcelain ceramic tile as reference material.

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Elaboration of porous gehlenite and anorthite based ceramics using low price raw materials

Cited by 9 publications

References 37 publications

Preparation of a Zirconia-Based Ceramic Membrane and Its Application for Drinking Water Treatment

Preparation of a Zirconia-Based Ceramic Membrane and Its Application for Drinking Water Treatment

Mechanical properties of anorthite based ceramics prepared from kaolin DD2 and calcite

Thermal evaluation of the use of porous ceramic plates on ventilated façades – Part I: Effect of composition and firing temperature on porosity and bending strength

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