National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Conditioning of Organic Pigments in Carbon Dioxide
Eliáš, Z. ; Vyňuchal, J. ; Krystyník, Pavel ; Klusoň, Petr
A patent review in area of conditionation of organic pigments in supercritical fluid was presented. The results of conditioning with various polycyclic pigments and azo dyes in supercritical CO2 were discussed. Special attention was paid to unpublished extractional conditioning that can lead to significant removal of residual solvents or contaminants from pigments with lower expenses and shorter time than with utilization of well-estabilished current procedures.
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Equilibrium Concentrations of Solutes Extracted from Plants with Supercritical CO2
Sovová, Helena
Phase equilibrium is the crucial factor for extraction feasibility and rate. In supercritical fluid extraction from plants it depends not only on extraction pressure, temperature, and solvent composition, but also on solute-matrix interaction and on mutual interactions of solutes. A new method for measurement and quantification of these phenomena is reported, as well as some results obtained in the project.

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