Process for recovering ethyleneamines

Details Process for recovering ethyleneamines Process for recovering ethyleneamines

C - Chemistry, Metallurgy

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260/267.1, 260/6

C07D 295/00 (2006.01) C07C 33/22 (2006.01) C07C 49/403 (2006.01) C07C 53/128 (2006.01) C07F 9/143 (2006.01)

Patent

CA 1220206

PROCESS FOR RECOVERING ETHYLENEAMINES ABSTRACT OF THE DISCLOSURE Ethyleneamines are efficiently recovered from an aqueous solution thereof by extracting them from the aqueous solution into an organic phase with an extractant selected from carbonyl group-containing organic solvents, benzyl alcohol, carboxylic acids and salts thereof, alkylphosphoric acids and salts thereof, and mixed solvents containing at least one of these extractants. The ethyleneamines in the organic phase is recovered preferably from the organic phase to the aqueous phase by incorporating an acid therein, followed by phase separation.

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