Title:
フェノール性化合物の製造方法、開裂産物混合物からのフェノールの分離方法、及び装置
Document Type and Number:
Japanese Patent JP4604028
Kind Code:
B2
Abstract:
To improve energy efficiency of prior art processes while preserving the standards of quality and total yield of desired end products, a process for the preparation of phenolic compounds is proposed comprising working-up of the cleavage product mixtures by distillation, which comprises resolving the cleavage product mixture into at least three fractions in a single distillation step by feeding the cleavage product mixture to the side of a distillation column, removing a first fraction comprising the ketone at the top of the distillation column, removing a second fraction comprising the phenolic compound at the bottom of the distillation column, and removing a third fraction comprising unreacted the alkylaryl compound and the hydroxy ketone, and water, as side stream, whereby the side stream take-off is situated above the feed of cleavage product mixture to the distillation column, characterized by removing heat from the distillation column, whereby the heat take-off is situated above the side stream take-off of the third fraction, and a process for separating phenol from cleavage product mixtures, wherein the cleavage product mixture prior feeding into the distillation column, is preheated to a temperature of above 100 °C at standard pressure, preferably to a temperature between 110 °C and 180 °C, most preferred to a temperature of about 140 °C to 146 °C, and an apparatus suitable therefore.
Inventors:
Schwarz Kristow
Weber Marx
Weber man frets
Weber Marx
Weber man frets
Application Number:
JP2006516095A
Publication Date:
December 22, 2010
Filing Date:
July 03, 2004
Export Citation:
Assignee:
Ineos Phenol Gesell Shaft Mitt Beschlenktel Haftung Und Companie Commande Gesell Shaft
International Classes:
C07C37/74; B01D3/00; B01D3/14; B01D3/32; C07C37/08; C07C39/04; C07C45/53; C07C45/82; C07C49/08; C07C49/17
Domestic Patent References:
| JP2003088703A | ||||
| JP6007601A | ||||
| JP2004515483A |
Foreign References:
| WO2002022532A1 |
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes