Loading...
Segregation of Anhydrite in Sintered Naturally Occurring Rock Salt
Swanson, Claudia H. Boehme, Susanne Guenster, Jens
Swanson, Claudia H.
Boehme, Susanne
Guenster, Jens
Advisors
Editors
Other Contributors
EPub Date
Publication Date
2015-09
Submitted Date
Collections
Other Titles
Abstract
This study examines the sintering of naturally occurring rock salt in dependence of pressure and temperature as is desired for storage and other applications in saline environments where rock salt is thermodynamically stable and shows a mechanical behavior compatible to the surrounding host material. Rock salt consists mainly of sodium chloride with small impurities of less soluble compounds such as anhydrite, CaSO4 . A special interest in the sintering process of naturally occurring rock salt is the segregation of anhydrite to the grain boundaries between individual sodium chloride crystals. Our study has shown that sintering naturally occurring rock salt at different pressures will influence the segregation of anhydrite. Experiments support a greater segregation of anhydrite resulting from an increased pressure treatment. As the solubility of anhydrite is less than sodium chloride, the sintered samples of naturally occurring rock salt show greater stability towards dissolution than pure sodium chloride.
Citation
Swanson, C., Boehme, S., & Guenster, J. (2015). Segregation of Anhydrite in Sintered Naturally Occurring Rock Salt. SMRI Conference Proceedings. Santander, Spain.
Publisher
Solution Mining Research Institute
Journal
Research Unit
DOI
PubMed ID
PubMed Central ID
Type
Conference Contribution
Language
en_US