Successive Methods for the Separation of Titanium Oxide from the Black Sands of Ecuador

• Autorzy: Perez S. M. , Sharadqah S.

Identyfikatory

DOI

10.12911/22998993/79417

• Języki publikacji: EN

Abstrakty

EN

The black sands found on certain Ecuadorian beaches present a high ilmenite contents up to 50%. In this work, TiO₂ was obtained from the black sands of Muisne beaches – Ecuador by combining the thermal, chemical and ion exchange treatments. For the thermal treatment, the raw material was smelted at temperature of 1100 °C using a basic flux. Subsequently, the chemical treatment was initiated in the presence of Fe⁰ metal using chemical digestion with HCl, and the sample was purified by separating the precipitates from a series of reactions developed at different pHs with NH₄OH, Na₂S and HCl. The final effluent resulting from the last HCl digestion was purified by ion exchange using Amberlite IRA 400 resin of strongly anionic character. The effluent is then treated in basic medium and the resulting precipitate is calcined. The recovery yield of the TiO₂ pigment was 46% with 92% purity.

Słowa kluczowe

EN

ion-exchange resin; muisne; Eesmeraldas; Ecuador; black sands; titanium dioxide

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2018
• Tom: Vol. 19, nr 1
• Strony: 186--190
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Perez S. M.

• Department of Natural Resources and Chemical Engineering, Tafila Technical University, P.O. Box 179, Tafila 66110, Jordan

autor

Sharadqah S.

• Department of Natural Resources and Chemical Engineering, Tafila Technical University, P.O. Box 179, Tafila 66110, Jordan

Bibliografia

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• 5. Martijena A., 1970. Posibilidades para la industria siderurgica en los paises de menor desarrollo relativo III. Ecuador. Naciones Unidas, Consejo Economicoy Social. Comision Economica para America Latina. E/CN.12/855. 24 de Abril.
• 6. Perez S. and Sharadqah S., 2017. Recovery of TiO2 from titaniferous sand of Esmeraldas Ecuador, using ion exchange resins. Journal of Natural Sciences Research, 7(6), 80-92.
• 7. Ponn S., 2006. Decolourization of hydrochloric acid. Department of Chemical Engineering, Lund Institute of Technology, 1-4.
• 8. Soledispa B. and Villacreses J., 1990. Estudio Composicional de las arenas ferrotitaniferas del sector comprendido entre el Estero Data de Posorja y el Monasterio de Santa Teresa, Provincia de Guayas Ecuador. INOCAR, Acta Oceanografica del Pacifico.
• 9. Trujillo D. and Managon L., 2016. Titanium dioxide recovery from ilmenite contained in ferrotitaniferous sands from Mompiche Ecuador. Journal of Geological Resource and Engineering, 4, 175-183.
• 10. Valderrama L., Poblete R., Contreras C., 2005. Caracterizacion y Concentracion de Muestras de Arenas de Caldera, Region Atacama. Revista de la Facultad de Ingenieria, Universidad de Atacama, 2005, 19, 38-44.
• 11. Valderrama L., 2008. Concentracion de minerales de titanio contenidos en las arenas de playas de la region de Atacama-Chile. IDITEC - Universidad de Atacama-Chile. On Line:www2.ifrn.edu.br/ojs/index.php/HOLOS/article/viewFile/152/140.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).