Title: Process for recovery of ethylene oxide containing low levels of aldehydic impurities

Abstract: A process for the recovery of ethylene oxide containing low levels of aldehydic impurities from an impure aqueous ethylene oxide solution containing the same is provided in which the impure solution is treated in a novel multi-stage, countercurrent distillation zone for improved separation of said aldehydic impurities and recovery of an ethylene oxide-containing product stream having the desired low concentration of aldehydic impurities.

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Inventors: Ozero, Brian J. (New York, NY, US)

Application Number: 879544
Filing Date: 1978-02-21
Publication_date: 1979-01-16
Assignee: Halcon Research & Development Corporation (New York, NY)
Primary Class(es): 203/75 203/82, 203/98, 203/99, 203/DIG19, 549/541
Other Classes:
US Patent Ref:

2615901	Oct, 1952	McClellan	260/348.
3398062	Aug, 1968	Tsao	260/348.
3418338	Dec, 1968	Gilman et al.	260/348.
3531376	Sep, 1970	Minoda et al.	203/99.
4008131	Feb, 1977	Price	203/99.

Other Refs:
Primary Examiner: Bascomb, Jr., Wilbur L.
Assistant Examiner:
Attorney: Long; William C., Dick; David, Murray, Jr.; Jack B., Murray, Jr.; Jack B.