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US 12,435,019 B2Granted
Process for the production of chlorinated hydrocarbons
AssigneeOccidental Chemical Corporation
InventorsJohn L. Dawkins, Darrell Hollis, Keith S. Kramer, Brian Calderwood, Michael A. Garmon
Life of this patent
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Abstract
A process of the type for producing 1,1,1,2,3-pentachloropropane by introducing 1,1,1,3-tetrachloropropane, chlorine, and Lewis acid catalyst, optionally in the presence of carbon tetrachloride, the improvement comprising introducing the Lewis acid as a slurry within a chlorinated hydrocarbon.
Claims19
A process for producing 1,1,1,2,3-pentachloropropane, the process comprising:
- (a) introducing carbon tetrachloride to a mix tank via a first inlet;
- (b) introducing Lewis acid catalyst to the mix tank via a second inlet;
- (c) agitating the carbon tetrachloride and the Lewis acid catalyst as a mixture within the mix tank via one or more mixing elements to form an agitated slurry;
- (d) where the mix tank is in fluid communication with a reactor via a circulation loop, where the agitated slurry is continuously circulated through the circulation loop via a pump upstream of the reactor, where the pump maintains pressure within the circulation loop;
- (e) introducing the agitated slurry from the mix tank to the reactor;
- (f) introducing 1,1,1,3-tetrachloropropane and chlorine to the reactor;
- (g) allowing, within the reactor, the 1,1,1,3-tetrachloropropane to chlorinate to the 1,1,1,2,3-pentachloropropane in the presence of the Lewis acid catalyst;
- and
- (h) collecting a crude 1,1,1,2,3-pentachloropropane stream.
6 more elements
A process for producing 1,1,1,2,3-pentachloropropane, the process comprising:
- (a) introducing a chlorinated hydrocarbon and a Lewis acid catalyst to a mix tank;
- (b) agitating the chlorinated hydrocarbon and the Lewis acid catalyst as a mixture within the mix tank via one or more mixing elements to form an agitated slurry;
- (c) where the mix tank is in fluid communication with a reactor via a circulation loop, where the agitated slurry is continuously circulated through the circulation loop via a pump upstream of the reactor, where the pump maintains pressure within the circulation loop, where the agitated slurry includes a substantially homogeneous concentration of the Lewis acid within the chlorinated hydrocarbon;
- (d) introducing the agitated slurry from the mix tank to the reactor;
- (e) introducing 1,1,1,3-tetrachloropropane and chlorine to the reactor;
- (f) allowing, within the reactor, the 1,1,1,3-tetrachloropropane to chlorinate to the 1,1,1,2,3-pentachloropropane in the presence of the Lewis acid catalyst;
- and
- (g) collecting a crude 1,1,1,2,3-pentachloropropane stream.
5 more elements
Dependencies are inferred from the claim text.