Patent · US Active

Method and an apparatus for separating furfural

US10858330B2 · kind B2 · utility

0Cited by

2References

25Claims

0Family size

Assignee

UPM-KYMMENE CORPORATION · FI

Inventors

Juha Tamper · Suolahti, FI
Hans Hasse · Kaiserslautern, DE
Nadia Galeotti · Kaiserslautern, DE
Fabian Jirasek · Kaiserslautern, DE
Jakob Burger · Waldkirch, DE

Key dates

Filing date	Dec 22, 2017
Grant date	Dec 8, 2020
Priority date	—
Expiry date	Dec 22, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D3/36
WIPO fieldChemical engineering
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.