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Extraction of potassium from microcline by chlorination

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  • معلومة اضافية
    • بيانات النشر:
      MDPI AG
    • Collection:
      CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
    • نبذة مختصرة :
      A pyrometallurgical route for the extraction of potassium from microcline was investigated. The reagents used were microcline, calcite and chlorine gas. Isothermal and non-isothermal chlorination assays were performed using experimental equipment adapted for working in corrosive atmospheres. The effects of temperature and reaction time on the chlorination reaction of the microcline-calcite mixture were studied. The reaction mechanism was also investigated. The techniques used to characterize reagents and products were thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and electron probe microanalysis (EPMA). The experimental results showed that the extraction of potassium in the form of KCl begins at 700 °C for 15 min. Anorthite also starts to be produced under these conditions. The optimum conditions for quantitative extraction of potassium and selective formation of anorthite were 900 °C for 60 min. ; Fil: Orosco, Roberto Pablo. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro de Investigacion y Desarrollo En Materiales Avanzados y Almacenamiento de Energia de Jujuy. - Universidad Nacional de Jujuy. Centro de Investigacion y Desarrollo En Materiales Avanzados y Almacenamiento de Energia de Jujuy. - Gobierno de la Provincia de Jujuy. Centro de Investigacion y Desarrollo En Materiales Avanzados y Almacenamiento de Energia de Jujuy; Argentina ; Fil: Barrios Torres, Oriana Coromoto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina ; Fil: Ojeda, Manuel Wilfrido. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. ...
    • File Description:
      application/pdf
    • ISSN:
      2075-163X
    • Relation:
      info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-163X/9/5/295; http://hdl.handle.net/11336/119070; Orosco, Roberto Pablo; Barrios Torres, Oriana Coromoto; Ojeda, Manuel Wilfrido; Extraction of potassium from microcline by chlorination; MDPI AG; Minerals; 9; 5; 5-2019; 1-12; CONICET Digital; CONICET
    • الدخول الالكتروني :
      http://hdl.handle.net/11336/119070
    • Rights:
      info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
    • الرقم المعرف:
      edsbas.2BD7C68