Utilizing phosphate mine tailings to produce ceramisite

2017 ◽  
Vol 155 ◽  
pp. 1081-1090 ◽  
Author(s):  
Yonghao Yang ◽  
Zuoan Wei ◽  
Yu-long Chen ◽  
Yunju Li ◽  
Xiaoyan Li
Keyword(s):  
Minerals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 318 ◽  
Author(s):  
Mohamed Loutou ◽  
Wafa Misrar ◽  
Mohammed Koudad ◽  
Mohammed Mansori ◽  
Liga Grase ◽  
...  

Ceramic membrane filters based on industrial by-products can be considered to be a valorization alternative of phosphate mine tailings, even more so if these ceramic membranes are used in the industrial wastewater treatment due to their good mechanical, chemical, and thermal resistance. The depollution of textile industry rejections with this method has not been studied in detail previously. In this work, ceramic membrane filters have been manufactured from natural clay and phosphate mine tailings (phosphate sludge). Blends of the abovementioned materials with a pore-forming agent (sawdust, up to 20 wt. %) were investigated in the range 900–1100 °C using thermal analysis, X-ray diffraction, scanning electron microscopy, and mercury porosimetry. Ceramic properties were measured as a function of firing temperature and sawdust addition. Filtration tests were carried out on samples with advantageous properties. The results showed that gehlenite together with diopside neoformed from lime decomposed carbonates and breakdown products of clay minerals, while calcium phosphate derived from partial decomposition of fluorapatite. Both quartz and fluorapatite resisted heating. The results of the experimental design showed that the variations of physical properties versus processing factors were well described by the polynomial model. Filtration results are quite interesting, allowing these membranes to be used in industrial effluent treatment.


2005 ◽  
Vol 24 (4) ◽  
pp. 215-221 ◽  
Author(s):  
K. Gnandi ◽  
G. Tchangbedji ◽  
K. Killi ◽  
G. Baba ◽  
A. I. Ouro Salim

2020 ◽  
Vol 10 (6) ◽  
pp. 568
Author(s):  
Fatima Zahra Boutaleb ◽  
Nadia Boutaleb ◽  
Bouchaib Bahlaouan ◽  
Deblij Sanaa ◽  
Said El Antri

<p class="Mabstract">This study offers an easy, economical, and ecological solution to manufacture a ceramic faience product with excellent mechanical properties by combining Moroccan phosphate mine tailings and two abundant local clays. The use of these clays alone was inconceivable because they do not generate a material that meets the mechanical requirements.</p><p class="Mabstract">A mixture design strategy conducted the optimization of the formulation. Therefore, ten tests were carried out. The ceramic tiles produced are characterized by their physical properties (water absorption, shrinkage), mechanical properties (flexural strength), and surface properties (observation by scanning electron microscopy).</p><p class="Mabstract">The results show that phosphate mine tailings improve the mechanical properties of ceramic tiles. Industrial use at a rate of 33% in formulas based on abundant local clays could, therefore, be envisaged to design faience products, conforming to the mechanical and technical requirements. This mode of production contributes to saving non-renewable natural resources, preserving the environment, and aligns with the principle of sustainable development.</p><div><div><p> </p><p> </p></div></div>


2004 ◽  
Vol 2004 (1) ◽  
pp. 1854-1861 ◽  
Author(s):  
Daniel Strawn ◽  
Amy Ryser ◽  
Jodi Johnson-Maynard ◽  
Greg Möller ◽  
Brian Hart ◽  
...  
Keyword(s):  

2018 ◽  
Vol 185 ◽  
pp. 891-903 ◽  
Author(s):  
S. Moukannaa ◽  
M. Loutou ◽  
M. Benzaazoua ◽  
L. Vitola ◽  
J. Alami ◽  
...  
Keyword(s):  

2021 ◽  
Vol 232 (12) ◽  
Author(s):  
Flávio Augusto de Sousa ◽  
Daniela Della-Rocca ◽  
Suélen Maria de Amorim ◽  
Júlia da Silveira Salla ◽  
Rosely Aparecida Peralta ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document