METHODS FOR RECOVERING CHLORINATED HYDROCARBONS

摘要

Processes for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane and ferric chloride. The processes may include deep distillation of the crude, treatment of the crude with a reagent that deactivates the ferric chloride followed by distillation on the deactivated crude stream, aqueous washing of the crude product stream to remove ferric chloride followed by distillation on the deactivated crude stream. Other embodiments simultaneously prepare 1,1,2,3-tetrachloroprene and 1,1,1,2,3-pentachloroprane.

主权项

1. A process for isolating 1,1,1,2,3-pentachloropropane from a crude product stream containing the 1,1,1,2,3-pentachloropropane, the process comprising:
(a.) providing a crude product stream containing 1,1,1,2,3-pentachloropropane, where the crude product stream includes ferric chloride; (b.) subjecting the crude product stream to distillation at a pressure of less than 0.040 atmospheres to thereby form a stream including 1,1,1,2,3-pentachloropropane that is substantially free of ferric chloride; and (c.) further processing the stream to isolate 1,1,1,2,3-pentachloropropane.