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Phase Equilibria and Critical Curves of Binary Ammonia–Hydrocarbon Mixtures
Author(s) -
Lentz Harro,
Franck Ernst Ulrich
Publication year - 1978
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197807281
Subject(s) - thermodynamics , supercritical fluid , phase diagram , ammonia , binary number , equation of state , chemistry , phase (matter) , supercritical fluid extraction , hydrocarbon mixtures , hydrocarbon , extraction (chemistry) , solvent , chromatography , organic chemistry , physics , mathematics , arithmetic
Liquid or dense supercritical ammonia has been suggested as an extraction fluid. It is indeed good solvent for very different classes of compounds, as can be seen from phase diagrams. Such diagrams for binary systems of ammonia and hydrocarbons are presented and discussed on the basis of their critical curves. Apparatus and methods for the measurement of phase equilibria and equation of state data of fluid mixtures at high pressure are described.