Removal of hydrogen fluoride from 2,2,3,3-tetra-fluorooxetane

Details Removal of hydrogen fluoride from 2,2,3,3-tetra-fluorooxetane Removal of hydrogen fluoride from 2,2,3,3-tetra-fluorooxetane

1987-07-01

1989-12-12

Manoharan, Virginia

Distillation: processes, separatory

Plural distillations performed on same material

One a distillation under positive pressure or vacuum

203 46, 203 67, 549511, B01D 300

Patent

active

048865818

ABSTRACT:
By extracting hydrogen fluoride from 2,2,3,3-tetrafluorooxetane with a halogenated hydrocarbon, a mixture of 2,2,3,2-tetrafluorooxetane and the halogenated hydrocarbon containing a small amount of hydrogen fluoride is obtained. The mixture may be distilled at least twice to obtain a mixture of 2,2,3,2-tetrafluorooxetane and the halogenated hydrocarbon containing substantially no hydrogen fluoride.

REFERENCES:
patent: 4031110 (1977-06-01), Stockel et al.
patent: 4209470 (1980-06-01), Lorquet
patent: 4226777 (1980-10-01), Baum et al.
patent: 4496760 (1985-01-01), Devic
patent: 4709060 (1987-11-01), Ohsaka et al.

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