Advanced research of the Triassic clay from the Baltic region | Baltijas reģiona Triasa mālu perspektīvie pētījumi
2012
Karasa, J., University of Latvia, Riga (Latvia). Dept. of Chemistry | Kostjukovs, J., University of Latvia, Riga (Latvia). Dept. of Chemistry | Palasa, A., University of Latvia, Riga (Latvia). Dept. of Chemistry | Actins, A., University of Latvia, Riga (Latvia). Dept. of Chemistry
anglais. A procedure of smectite containing clay enrichment has been optimized, and the process of sedimentation has been studied. The new enrichment based method for quantitative determination of clay fraction in smectite containing sediment was developed. A new method for obtaining organoclays from enriched smectite clays has been investigated. The method is based on solid-state reaction between smectite and organic compounds, where organic molecules can be intercalated in dried clay mineral (montmorillonite) by solid-state reactions, without or with use of solvents. The enriched clay and the obtained organoclay samples were characterized with X-ray powder diffraction (PXRD).
Afficher plus [+] Moins [-]letton. Optimizēta smektītu mālu bagātināšanas metode un pētīts sedimentācijas process. Smektītu māla frakcijas kvantitatīvai atdalīšanai no smektītu saturošiem nogulumiem attīstīta jauna metode, kuras pamatā ir bagātināšanas process. Izstrādāta jauna metode organomālu iegūšanai no bagātinātiem smektītu māliem. Metodes pamatā ir cietfāžu reakcijas starp smektītiem un organiskajiem savienojumiem, kurās organiskās molekulas var tikt ievadītas mālu minerāla (montorilonīta) struktūrā ar vai bez šķīdinātāja izmantošanas. Bagātinātu mālu un organomālu paraugi raksturoti ar pulvera rentgendifraktometrijas metodi.
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