Process for obtaining solutions having a high content of dissolv

Details Process for obtaining solutions having a high content of dissolv Process for obtaining solutions having a high content of dissolv

1985-02-21

1986-12-02

Lovering, Richard D.

Compositions

Inorganic luminescent compositions

Tungsten containing

261128, 261138, 521 56, 521 72, C09K 330

Patent

active

046263764

ABSTRACT:
The solution-saturation (13,26) is produced in a countercurrent manner under low pressure of the gas (19) in a chlorofluorohydrocarbon (1) which is sprayed (12A,12B), previously compressed (3), and supercooled (5) to a temperature in the neighborhood of or lower than the temperature chosen for the chlorofluorohydrocarbon dissolved gas mixture at the outlet (30), the first gas-liquid chlorofluorohydrocarbon contact being effected by a bubbling (25) under pressure of the gas in the chlorofluorohydrocarbon (26) under conditions of temperature and pressure lower than the critical conditions, with a strict thermal regulation (31) throughout the dissolving stage so as to effect it below the critical conditions, thereafter the chlorofluorohydrocarbon mixture having a high content of dissolved gas is compressed (28A,28B) under high pressure. Application in the chlorofluorohydrocarbon solutions and in particular dichlorodifluoromethane having a high content of carbon dioxide.

REFERENCES:
patent: 2070167 (1937-02-01), Iddings
patent: 2242429 (1941-05-01), Johnson
patent: 2514463 (1950-07-01), Bayers
patent: 2668419 (1954-02-01), Mapes
patent: 2964165 (1960-12-01), Riley
patent: 3342672 (1967-09-01), Webster et al.
patent: 3387425 (1968-06-01), Flanner
patent: 3996153 (1976-12-01), Heeb et al.

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