Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1993-10-04
1996-01-30
Dees, Jose G.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
568842, 570134, C07C 6963
Patent
active
054881420
ABSTRACT:
Direct fiuorination of organics such as 1,8-dichlorooctane in tubular reactor. Inert liquid containing organic feed is circulated through tubular reactor with fluorine gas for a time and at a temperature sufficient to yield fluorinated organic. Preferably, liquid and gas phases are separated from reactor product stream containing inert liquid, fluorinated organic, and any unreacted organic is recycled to turbulent mixing zone upstream of reactor in which fresh organic feed is added; and fluorine is added to recycle stream at end of mixing zone. Flow in tubular reactor is turbulent. Rate of organic feed and fluorine addition to process are independent of each other. Among process advantages are: Freon solvents not required; good control of reaction exotherm; and HF scavengers not required. Process useful for partial or complete fluorination.
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Fall David J.
Guerra Miguel A.
Conrad, III Joseph M.
Dees Jos,e G.
Griswold Gary L.
Kirn Walter N.
Little Douglas B.
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