Metallurgical characterization of kaolin from Atacama, Chile: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Metallurgical characterization of kaolin from Atacama, Chile

Oscar Rivera / Osvaldo Pavez / Julia Li Kao / Amin Nazer

Abstract In order to determine the exploitation potentiality of a kaolin deposit from Atacama in the north of Chile, two types of kaolin (K-1 and K-2) were characterized by XRD, XRF, SEM/EDXS, size distribution, whiteness and DSC. Kaolinite, quartz, muscovite and albite were recognized as main constituents of the ore deposit, and also a significant amount of impurities that negatively impacts on quality were detected. Results show that the low quality presented by the samples, especially K-2, impedes their industrial use as raw material and further mineral concentration processes are proposed. Finally, the results of thermal analysis confirm a conversion to metakaolin that could be the basis for an alternative processing route.

Access

Page navigation

Document information

Export, share and cite

Metallurgical characterization of kaolin from Atacama, Chile

Oscar Rivera / Osvaldo Pavez / Julia Li Kao / Amin Nazer

Abstract In order to determine the exploitation potentiality of a kaolin deposit from Atacama in the north of Chile, two types of kaolin (K-1 and K-2) were characterized by XRD, XRF, SEM/EDXS, size distribution, whiteness and DSC. Kaolinite, quartz, muscovite and albite were recognized as main constituents of the ore deposit, and also a significant amount of impurities that negatively impacts on quality were detected. Results show that the low quality presented by the samples, especially K-2, impedes their industrial use as raw material and further mineral concentration processes are proposed. Finally, the results of thermal analysis confirm a conversion to metakaolin that could be the basis for an alternative processing route.

Metallurgical characterization of kaolin from Atacama, Chile

Oscar Rivera / Osvaldo Pavez / Julia Li Kao / Amin Nazer

Abstract In order to determine the exploitation potentiality of a kaolin deposit from Atacama in the north of Chile, two types of kaolin (K-1 and K-2) were characterized by XRD, XRF, SEM/EDXS, size distribution, whiteness and DSC. Kaolinite, quartz, muscovite and albite were recognized as main constituents of the ore deposit, and also a significant amount of impurities that negatively impacts on quality were detected. Results show that the low quality presented by the samples, especially K-2, impedes their industrial use as raw material and further mineral concentration processes are proposed. Finally, the results of thermal analysis confirm a conversion to metakaolin that could be the basis for an alternative processing route.

Access

Page navigation

Document information

Export, share and cite

Document information

Title:

Metallurgical characterization of kaolin from Atacama, Chile

Contributors:

Oscar Rivera (author) / Osvaldo Pavez (author) / Julia Li Kao (author) / Amin Nazer (author)

Published in:

REM: International Engineering Journal, Vol 69, Iss 4, Pp 473-478

ISSN:

DOI:

https://doi.org/10.1590/0370-44672016690005

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

Kaolin , X-ray diffraction , Scanning Electron Microscopy , metakaolin , DSC , Mining engineering. Metallurgy , TN1-997 , Engineering (General). Civil engineering (General) , TA1-2040

Metadata by DOAJ is licensed under CC BY-SA 1.0

Similar titles

View from... Atacama Desert, Chile

British Library Online Contents | 2012

View from ... - Atacama Desert, Chile

Online Contents | 2012

Hotel Explora in Atacama, San Pedro de Atacama, Chile

British Library Online Contents | 1998

Hotel, San Pedro de Atacama, Chile

Del Sol, G. | British Library Online Contents | 1999

THEME - Hotel, San Pedro de Atacama, Chile

Sol, German Del | Online Contents | 1999