US 11,945,761 B2
Process for the production of chlorinated hydrocarbons
John L. Dawkins, Derby, KS (US); Darrell Hollis, Conway Springs, KS (US); Keith S. Kramer, Andover, KS (US); Brian Calderwood, Wichita, KS (US); and Michael A. Garmon, Manvel, TX (US)
Assigned to OCCIDENTAL CHEMICAL CORPORATION, Dallas, TX (US)
Appl. No. 16/320,667
Filed by OCCIDENTAL CHEMICAL CORPORATION, Dallas, TX (US)
PCT Filed Jul. 24, 2017, PCT No. PCT/US2017/043473
§ 371(c)(1), (2) Date Jan. 25, 2019,
PCT Pub. No. WO2018/022491, PCT Pub. Date Feb. 1, 2018.
Claims priority of provisional application 62/366,680, filed on Jul. 26, 2016.
Prior Publication US 2021/0355052 A1, Nov. 18, 2021
Int. Cl. C07C 17/10 (2006.01); B01D 3/32 (2006.01); C07C 17/25 (2006.01); C07C 19/01 (2006.01)
CPC C07C 17/10 (2013.01) [B01D 3/322 (2013.01); C07C 17/25 (2013.01); C07C 19/01 (2013.01); C07C 2523/745 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A process for producing 1,1,2,3-tetrachloropropene, the process comprising
providing, within a slurry system, a slurry including Lewis acid catalyst within a chlorinated hydrocarbon, where the Lewis acid catalyst is introduced to the slurry system via a dustless bucket tipper;
continuously agitating the slurry to form an agitated slurry;
introducing, to a reaction vessel, 1,1,1,3-tetrachloropropane, chlorine, and the agitated slurry, the reaction vessel optionally further including carbon tetrachloride;
allowing the 1,1,1,3-tetrachloropropane to chlorinate to the 1,1,1,2,3-pentachloropropane in the presence of the Lewis acid catalyst which is within the agitated slurry, the step of allowing the 1,1,1,3-tetrachloropropane to chlorinate thereby forming a crude 1,1,1,2,3-pentachloropropane stream; and
introducing the crude 1,1,1,2,3-pentachloropropane stream to a reactive distillation column to thereby produce the 1,1,2,3-tetrachloropropene, and
introducing an additional amount of the agitated slurry to the crude 1,1,1,2,3-pentachloropropane stream.