Use of 1,1,1,2-tetrafluoroethane (R-134a)-expanded liquids as solvent media for ecoefficient particle design with the DELOS crystallization process

Miquel Gimeno, Nora Ventosa, Santiago Sala, Jaume Veciana

    Research output: Contribution to journalArticleResearchpeer-review

    17 Citations (Scopus)

    Abstract

    R-134a-expanded liquids have been used as solvent media for the straightforward crystallization of micron-sized crystalline powders using the depressurization of an expanded liquid organic solution (DELOS) procedure. The results, obtained with three different kinds of compounds - aspirin, hexamethylenetetramine, and solvent blue 35 - show that R-134-expanded liquids are suitable solvent media for material synthesis and processing at much lower working pressures (<1 MPa) than those required with compressed CO2 (>15 MPa) and even CO2-expanded solvents (≈10 MPa). © 2006 American Chemical Society.
    Original languageEnglish
    Pages (from-to)23-25
    JournalCrystal Growth and Design
    Volume6
    Issue number1
    DOIs
    Publication statusPublished - 1 Jan 2006

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