Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Technological characterization of kaolin: Study of the case of the Borborema–Seridó region (Brazil)
AbstractThe technological characterization of kaolin from the Borborema–Seridó region has shown that it is predominantly kaolinitic, pseudoplastic and thixotropic; approximately 50% of its particles size is less than 2 μm. By using electronic paramagnetic resonance (EPR) and Mössbauer spectroscopy (ME), it was observed that Fe2+ and Fe3+ substitute Al3+ in octahedral sites of kaolinite. After magnetic separation followed by chemical bleaching, kaolin reached a brightness index of 87.72% ISO and an opacity index of 85.58% ISO, indicating that it can be used mainly as a filler and a coating in the paper industry, paint and pottery, among other industries.
Technological characterization of kaolin: Study of the case of the Borborema–Seridó region (Brazil)
AbstractThe technological characterization of kaolin from the Borborema–Seridó region has shown that it is predominantly kaolinitic, pseudoplastic and thixotropic; approximately 50% of its particles size is less than 2 μm. By using electronic paramagnetic resonance (EPR) and Mössbauer spectroscopy (ME), it was observed that Fe2+ and Fe3+ substitute Al3+ in octahedral sites of kaolinite. After magnetic separation followed by chemical bleaching, kaolin reached a brightness index of 87.72% ISO and an opacity index of 85.58% ISO, indicating that it can be used mainly as a filler and a coating in the paper industry, paint and pottery, among other industries.
Technological characterization of kaolin: Study of the case of the Borborema–Seridó region (Brazil)
Silva, Fernanda Arruda Nogueira Gomes (Autor:in) / Luz, Adão B. (Autor:in) / Sampaio, João Alves (Autor:in) / Bertolino, Luiz Carlos (Autor:in) / Scorzelli, Rosa Bernstein (Autor:in) / Duttine, Mathieu (Autor:in) / da Silva, Flávio Teixeira (Autor:in)
Applied Clay Science ; 44 ; 189-193
23.01.2009
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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