METHOD FOR REMOVAL AND RECOVERY OF ORGANIC AMINE FROM HYDROCARBON STREAM Russian patent published in 2017 - IPC C07C7/17 C07C7/171 C10G17/06 C10G17/07 C02F1/58 C07C11/02 

FIELD: chemistry.

SUBSTANCE: invention is an effluent reactor stream for preparing linear alpha-olefins by oligomerization of ethylene or a fraction of the effluent stream comprising the stages of: i) mixing a hydrocarbon stream containing amine with an aqueous mineral acid at the volume ratio of the hydrocarbon stream: aqueous inorganic acid > 1: 1.5: 1, ii) phase separation into hydrocarbon and an aqueous phase; iii) removing the hydrocarbonaceous phase and optionally its further purification, iv) optionally recycling of, at least, a part of the hydrocarbonaceous phase obtained at the stage (iii), to the mixing stage (i), v) mixing the aqueous phase obtained at the stage (iii) with an aqueous alkaline solution, vi) separating the phases into an aqueous phase and the resulting organic phase, vii) removal of the organic phase obtained at the stage (vi), and optionally its further purification.

EFFECT: method overcomes the disadvantages of the prior art and allows an easy and fast processing with rapid phase separation into organic and aqueous.

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