Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.

Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as dialkylhydroxylamine and/or the use of a vessel made of a nickel alloy.

Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.

Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.

Abstract: Inhibition of the formation of unsaturated carbon compounds during the heating of 141b involving the addition of various inhibitors such as butylene oxide and/or the use of a vessel made of a nickel alloy.

Abstract: 1,1-Dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane are selectively produced by fluorination of 1,1,1-trichloroethane. Conditions in a first reaction zone selected to preferentially form 1,1-dichloro-1-fluoroethane. The reaction effluent is split between a 1,1-dichloro-1-fluoroethane recovery system, and a second reaction zone. The effluent from the latter is routed to 1-chloro-1,1,-difluoroethane recovery system. The second reaction zone conditions are selected for form 1-chloro-1,1-difluoroethane. The ratio of product formed by the overall process may be varied from up to 98% 1,1-dichloro-1-fluoroethane to greater than 98% 1-chloro-1,1-difluoroethane.

Abstract: Apparatus for recovering chlorocarbons from a vent gas stream which additionally contains a halogen, including an inlet means connected to a source of the gas stream and a heat exchanger means for receiving the stream from the inlet means. The heat exchange means has a cooling capacity sufficient to reduce the temperature of the stream to less than about -60.degree. F. at a pressure of at least 60 psig. Finally, separator means are provided for receiving the stream at the reduced temperature and include means for separating the liquid from the vapor at that point.The apparatus and the method of using the same is particularly suited for use with vent gas streams containing at least 1000 ppm of carbon tetrachloride and approximately 0.2 to 20% of a halogen, particularly chlorine, based upon the weight of the carbon tetrachloride. Preferred operating conditions are from about -60.degree. F. to about -70.degree. F. at a pressure ranging from 80 to 90 psig.

Abstract: Foul water streams from refining processes such as fluidized catalytic cracking, containing about 1-100 ppm metal cyanide complex compounds, are contacted with flue gas from combustion of hydrocarbonaceous fuels at temperatures of 750.degree. F and higher for essentially complete decomposition of cyanide radicals.