Patent · US Active

Process for treating phenol

US7544845B2 · kind B2 · utility

1Cited by

4References

20Claims

0Family size

Assignee

INEOS Phenol GmbH & Co., KG · DE

Inventors

Gunther Lohmer · Mülheim an der Ruhr, DE
Otto Schnurr · Stabroek, BE
Manfred Weber · Greensboro, US
Markus Weber · Langenfeld, DE

Key dates

Filing date	Apr 17, 2007
Grant date	Jun 9, 2009
Priority date	—
Expiry date	Jun 12, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C409/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a continuous method for treating a crude phenol stream comprising methylbenzofuran and hydroxyacetone by passing the crude phenol stream through at least two reactors connected in series the reactors containing an acidic ion exchange resin, whereby the temperature in successive reactors decreases in flow direction of the phenol stream so that the temperature in the first reactor in flow direction of the phenol stream is between 100° C. and 200° C. and the temperature in the last reactor in flow direction of the phenol stream is between 50° C. and 90° C. without a thermal separation step between any of two successive reactors and to the use of this method in a process for making phenol.

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