Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including external recycle loop
Patent
1995-05-31
1996-11-26
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including external recycle loop
560227, 568842, 570134, 422129, B01J 1000
Patent
active
055782787
ABSTRACT:
Direct fluorination 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.
REFERENCES:
patent: 4113772 (1978-09-01), Lagow et al.
patent: 4144374 (1979-03-01), Lagow et al.
patent: 4226796 (1980-10-01), Akred et al.
patent: 4261916 (1981-04-01), Crosby
patent: 4328369 (1982-05-01), Baldi et al.
patent: 4523039 (1985-06-01), Lagow et al.
patent: 4675452 (1987-06-01), Lagow et al.
patent: 4686024 (1987-08-01), Scherer, Jr. et al.
patent: 4755567 (1988-07-01), Bierschenk et al.
patent: 4859747 (1989-08-01), Bierschenk et al.
patent: 4943595 (1990-07-01), Scherer, Jr. et al.
patent: 5053142 (1991-10-01), Sorensen et al.
patent: 5093432 (1992-03-01), Bierschenk et al.
patent: 5116582 (1992-05-01), Cooper et al.
patent: 5120459 (1992-06-01), Kolota et al.
patent: 5177275 (1993-01-01), Baucom et al.
patent: 5183649 (1993-02-01), Holmes et al.
patent: 5482682 (1996-01-01), Tarancon
Kramers, H. and Westerterp, K. R., Elements of Chemical Reactor Design and Operation, Academic Press, Inc. 1963, pp. 55-56 (1963).
Levenspiel, O., Chemical Reaction Engineering, John Wiley & Sons, pp. XI-XV, 99-116 (1967).
Encyclopedia of Chemical Processing and Design, p. 287 (1994).
Lagow, R. J., "Direct Fluorination: A New Approach to Fluorine Chemistry", Progress in Inorganic Chemistry, 26, pp. 161-210 (1979).
Kirk-Othmer Encyclopedia of Chemical Technology, 3d ed. vol. 10, pp. 636, 840-855, John Wiley & Sons (1980).
Hill, C. G., Jr. An Introduction To Chemical Engineering Kinetics & Reactor Design, John Wiley & Sons, pp. 245-274. 357 (1977).
Fall David J.
Guerra Miguel A.
Dawson E. Leigh
Griswold Gary L.
Kirn Walter N.
Little Douglas B.
Minnesota Mining and Manufacturing Company
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