Title:
フェノールの製造方法
Document Type and Number:
Japanese Patent JP5137944
Kind Code:
B2
Abstract:
The present invention relates to method for producing phenol comprising:
a) oxidizing cumene to form an oxidation product containing cumene hydroperoxide;
b) cleaving said oxidation product using an acidic catalyst to form a cleavage product containing phenol, acetone and impurities;
c) neutralizing and washing said cleavage product with a basic aqueous medium to obtain a neutralized cleavage product;
d) separating said neutralized cleavage product by at least one distillation step into at least a phenol containing fraction and an aqueous fraction comprising hydroxyacetone;
e) treating said aqueous fraction with an oxidizing agent in presence of a base to obtain a basic aqueous medium reduced in hydroxyacetone;
f) recycling at least a portion of said basic aqueous medium to the neutralizing and washing step c); and
g) recovering phenol from said phenol containing fraction obtained in step d).
More Like This:
Inventors:
Weber man frets
Weber Marx
Schnur Otto
Weber Marx
Schnur Otto
Application Number:
JP2009505741A
Publication Date:
February 06, 2013
Filing Date:
April 03, 2007
Export Citation:
Assignee:
Ineos Phenol Gesell Shaft Mitt Beschlenktel Haftung Und Companie Commande Gesell Shaft
International Classes:
C07C27/12; C07C39/04; C07C49/08
Domestic Patent References:
| JP2005514372A | ||||
| JP2000226352A | ||||
| JP2004515483A | ||||
| JP8259481A | ||||
| JP9506636A | ||||
| JP2009513489A | ||||
| JP2005511675A | ||||
| JP2007223945A |
Foreign References:
| US2971893 | ||||
| GB1231991B |
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes