Compositions – Inorganic luminescent compositions – Tungsten containing
Patent
1994-02-17
1995-07-18
Le, Hoa Van
Compositions
Inorganic luminescent compositions
Tungsten containing
252 67, 252 68, 252 90, 252162, 62 9, 62 11, 62 36, C09K 330, F25J 100
Patent
active
054338891
ABSTRACT:
The process for mixing a gas with at least one liquid, for example to obtain a nonchlorinated or little chlorinated solvent from a gaseous hydrofluoroalkane, comprises, starting with normal conditions of temperature and pressure, cooling the gas under such conditions of temperature and pressure that the gas is liquefied, mixing this liquefied gas with the liquid, and bringing the mixture back to the normal temperature.
REFERENCES:
patent: 3929492 (1975-12-01), Chapman et al.
patent: 3947567 (1976-03-01), Berg, Jr. et al.
patent: 4289646 (1981-09-01), Mitschke et al.
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