Hydrothermal treatment of perlite with caustic soda to produce metal silicate solutions

Date

2001-11-01

Author

Yilmaz, S
Yucel, H

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The effects of temperature, concentration of caustic soda and liquid to solid ratio on hydrothermal treatment of perlite with caustic solution to produce metal silicate solutions were investigated. The reaction was carried out in laboratory autoclave of 1 L capacity over a range of experimental conditions. The treatment time was kept constant at I hour. The chemical compositions of liquid products were analyzed by standard wet chemical methods. The results indicated that, under favorable conditions, aqueous metal silicate solutions with a high yield of about 80 percent, and having SiO2/Na2O molar ratios of 0.6 to 1 can be produced by this method.

Subject Keywords

Non-metallic ores, Leaching

URI

https://hdl.handle.net/11511/64559

Journal

MINERALS ENGINEERING

DOI

https://doi.org/10.1016/s0892-6875(01)00169-8

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

S. Yilmaz and H. Yucel, “Hydrothermal treatment of perlite with caustic soda to produce metal silicate solutions,” MINERALS ENGINEERING, pp. 1545–1548, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/64559.