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Volume 7
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10.3390/min7050069
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Article

Synthesis of Ultramarine from Reservoir Silts

by
Yin-Hsiu Hsiao
,
Yun-Hwei Shen
and
Dah-Tong Ray
*
Department of Resources Engineering, National Cheng Kung University, 1 Da-Hsueh Road, Tainan 70101, Taiwan
*
Author to whom correspondence should be addressed.
Minerals 2017, 7(5), 69; https://doi.org/10.3390/min7050069
Submission received: 27 March 2017 / Revised: 2 May 2017 / Accepted: 4 May 2017 / Published: 7 May 2017
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Abstract

Ultramarine blue was synthesized by using reservoir silts as a major raw material to replace traditional kaolin clay. The reservoir silts were pretreated to collect the fines, in which the main mineral composition is illite clay. The fine part was mixed with sodium carbonate, sulfur, and activated carbon, and calcined at 800°C for 8 h. The products were examined by X-ray powder diffraction (XRD) and a scanning electron microscope (SEM) to identify the mineral phases and particle morphology. The color characteristics were measured according to the CIELab system. Brilliant blue ultramarine powders were successfully synthesized with a chroma of 52.4, which is competitive with the commercial ultramarine.
Keywords: reservoir silts; ultramarine; synthesis reservoir silts; ultramarine; synthesis

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MDPI and ACS Style

Hsiao, Y.-H.; Shen, Y.-H.; Ray, D.-T. Synthesis of Ultramarine from Reservoir Silts. Minerals 2017, 7, 69. https://doi.org/10.3390/min7050069

AMA Style

Hsiao Y-H, Shen Y-H, Ray D-T. Synthesis of Ultramarine from Reservoir Silts. Minerals. 2017; 7(5):69. https://doi.org/10.3390/min7050069

Chicago/Turabian Style

Hsiao, Yin-Hsiu, Yun-Hwei Shen, and Dah-Tong Ray. 2017. "Synthesis of Ultramarine from Reservoir Silts" Minerals 7, no. 5: 69. https://doi.org/10.3390/min7050069

APA Style

Hsiao, Y.-H., Shen, Y.-H., & Ray, D.-T. (2017). Synthesis of Ultramarine from Reservoir Silts. Minerals, 7(5), 69. https://doi.org/10.3390/min7050069

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