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Abstract

A method for treating wastewater of a neopentyl glycol production process, the method including: recovering wastewater including a catalyst from one or more processes of an aldol purification process, a_neopentyl glycol purification process, and an extractant recovery process, and supplying the wastewater to a volatile organic compounds to a separation column; obtaining, from the separation column for volatile organic compound separation column; obtaining an upper discharge stream including the catalyst and a lower discharge stream including wastewater from which the catalyst has been removed in the volatile organic compound separation column; and supplying the lower discharge stream to a wastewater treatment system to treat the wastewater.

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