公开(公告)号：US10858330B2

公开(公告)日：2020-12-08

申请号：US16473355

申请日：2017-12-22

Applicant: UPM-KYMMENE CORPORATION

Inventor： Juha Tamper ,  Hans Hasse ,  Nadia Galeotti ,  Fabian Jirasek ,  Jakob Burger

IPC: C07D307/50 ,  B01D3/36

Abstract: In a method and an apparatus furfural is separated from a material stream (3) which is formed in a treatment of a pretreated wood based material (1). The material stream (3) which comprises at least furfural is introduced to a separation column (5). A top vapor condensate (6) is introduced from a top end of the separation column (5) to a decanter (10) in which two liquid phases (9,11) are separated from each other. An organic phase (9) which comprises at least furfural is recovered, and an aqueous phase (11) is supplied as a reflux to the separation column (5). Further, the invention relates to a furfural based product and chemical product and a use of the organic phase.