GB782865A - Process for the separation of the anti-decomposition products of cumene hydroperoxide by distillation - Google Patents
Process for the separation of the anti-decomposition products of cumene hydroperoxide by distillationInfo
- Publication number
- GB782865A GB782865A GB16631/55A GB1663155A GB782865A GB 782865 A GB782865 A GB 782865A GB 16631/55 A GB16631/55 A GB 16631/55A GB 1663155 A GB1663155 A GB 1663155A GB 782865 A GB782865 A GB 782865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- column
- per cent
- withdrawn
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0782865/III/1> The products obtained by the acid-decomposition of cumene hydroperoxide are separated by subjecting the mixture to distillation in the presence of water in a plate-type fractionating column which is operated so that pure acetone concentrates at and is withdrawn from the head of the column, while cumene and methylstyrene (both hydrocarbons being substantially free from phenol) and water are withdrawn as sidestreams; and phenol is obtained at the base of the column. This phenol contains high-boiling compounds such as cumyl phenol and it may also contain dimethylphenyl carbinol and acetophenone; but a purer phenol may be obtained by separating the carbinol and acetophenone as an additional sidestream from the column. A reaction mixture containing phenol and acetone in equimolecular proportions, as well as cumene (5.5 per cent), methylstyrene (1.7 per cent), dimethylphenyl carbinol (1 per cent), acetophenone (1.2 per cent), a proportion of products having higher boiling points, and water (10 per cent), is introduced through pipe 1 into a 50-60 plate-column having three decanting-plates m, n, o. The temperature at the base of the column is maintained at 120 DEG C. by heater V. Acetone vapours pass overhead and are condensed in condenser T, the liquid being returned to the head of the column. Acetone product is withdrawn through pipe 2. A fraction containing a high proportion of odorous, coloured and reducing impurities is discharged through pipe 7. A mixture rich in cumene and methylstyrene, containing only 20 parts per million of phenol, is withdrawn from decanter m, while the water constituting the decanted lower layer is returned to the column. An aqueous solution containing 100 parts per million of phenol is withdrawn from decanter n. A mixture containing 8 per cent of acetophenone, 1 per cent of dimethyphenyl carbinol, 90 per cent of hydrocarbons and less than 0.1 per cent of phenol is withdrawn from decanter o, while the water decanted from this plate is returned to the column. Phenol is withdrawn from the bottom of the column through pipe 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR782865X | 1954-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB782865A true GB782865A (en) | 1957-09-11 |
Family
ID=9213444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16631/55A Expired GB782865A (en) | 1954-06-23 | 1955-06-09 | Process for the separation of the anti-decomposition products of cumene hydroperoxide by distillation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB782865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005005357A1 (en) * | 2003-07-04 | 2005-01-20 | Ineos Phenol Gmbh & Co. Kg | Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus |
| US7626060B2 (en) | 2003-07-11 | 2009-12-01 | INEOS Phenol GmbH & Co., KG | Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus |
-
1955
- 1955-06-09 GB GB16631/55A patent/GB782865A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005005357A1 (en) * | 2003-07-04 | 2005-01-20 | Ineos Phenol Gmbh & Co. Kg | Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus |
| CN100335452C (en) * | 2003-07-04 | 2007-09-05 | Ineos芬诺尔两合公司 | Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus |
| US7626060B2 (en) | 2003-07-11 | 2009-12-01 | INEOS Phenol GmbH & Co., KG | Process for the preparation of phenolic compounds, for separating phenol from cleavage product mixtures, and an apparatus |
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