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US 5,433,889 AGranted
Process for mixing a gas with at least one liquid
OwnerJean-Luc Lengleninventor
Life of this patent
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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.
Claims20
Process for mixing a gas with at least one liquid, comprising the following steps:
- starting with normal conditions of temperature and pressure, cooling said gas under such conditions and temperature that said gas is liquefied, mixing said liquefied gas with said at least one liquid, and bringing said mixture back to said normal temperature.
A process for mixing a gas with at least one liquid comprising the steps of:
- cooling a gas at ambient temperature and pressure until the gas is liquified, mixing said liquified gas with at least one liquid, and bringing the resulting mixture back to ambient temperature;
- wherein said gas is a hydrofluoroalkane selected from the group consisting of hydrofluorocarbons and hydrochlorofluorocarbons, and wherein said at least one liquid is a mixture containing a hydrocarbon distillate, methoxypropanol and optionally, n-butoxy dipropylene glycol.
Dependencies are inferred from the claim text.