C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/656.2
C07C 17/38 (2006.01) C07C 17/395 (2006.01) C07C 19/08 (2006.01)
Patent
CA 1321402
ABSTRACT A mixture of telomers prepared by reacting chlorotrifluoroethylene with l,1,2-trichlorotri- fluoroethane (CC)12FCF2C1) is purified by reacting the telomer mixture with potassium hydroxide in the presence of a quaternary ammonium compound and, optionally, a glycol, separating and removing im- purities from the telomer mixture, subsequently reacting the telomer with potassium permanganate in -the presence of the qua-ternary ammonium compound in a solvent, and recovering a purified telomer mixture. If additional purity is required, the purified telomer mixture can be heated to a temperature of from about 150°C to about 250°C for at least 12 hours, and impurities formed during the thermal treatment are removed. The purified telomers of this invention find uses in applications requiring the use of non-flammable hydraulic fluids.
607873
Dannels Bobby F.
Forcucci John
Olsen Deborah J.
Dannels Bobby F.
Forcucci John
Occidental Chemical Corporation
Olsen Deborah J.
Swabey Ogilvy Renault
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