GB929680A - Purifying synthetic phenol by distillation - Google Patents
Purifying synthetic phenol by distillationInfo
- Publication number
- GB929680A GB929680A GB20945/61A GB2094561A GB929680A GB 929680 A GB929680 A GB 929680A GB 20945/61 A GB20945/61 A GB 20945/61A GB 2094561 A GB2094561 A GB 2094561A GB 929680 A GB929680 A GB 929680A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- distillation
- distillate
- fractionated
- crude
- 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
In a distillation process for the separation of pure phenol from a crude reaction product containing a preponderance of phenol together with minor proportions of cyclohexanol and/or cyclohexanone, the crude phenol is first submitted to fractionation to distil off the lower-boiling impurities and the bulk of the phenol, leaving the higher-boiling impurities as p distillation-residues; the distillate is then re-fractionated to separate pure phenol. In an example, cyclohexane is subjected to air-oxidation, in the presence of a cobalt naphthenate catalyst; and the product is submitted to vacuum-distillation to obtain a "cyclohexanol cut". This cut is dehydrogenated using a platinum-on-carbon catalyst. The crude phenol is fractionated using a 35-plate column at a reflux ratio of 5 to 1; and a fraction boiling up to 184 DEG C. is withdrawn as distillate. This distillate is re-fractionated for the removal of water and light ends; and then, with a head-temperature of 178 DEG -182 DEG C., pure phenol is withdrawn as a side-stream from the 7th plate from the bottom of the column.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3512760A | 1960-06-10 | 1960-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB929680A true GB929680A (en) | 1963-06-26 |
Family
ID=21880808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20945/61A Expired GB929680A (en) | 1960-06-10 | 1961-06-09 | Purifying synthetic phenol by distillation |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE604628A (en) |
| CH (1) | CH401994A (en) |
| ES (1) | ES268096A1 (en) |
| GB (1) | GB929680A (en) |
| LU (1) | LU40220A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030892A (en) * | 2013-03-04 | 2014-09-10 | 埃克森美孚化学专利公司 | System and process for making phenol and/or cyclohexanone |
| US9115060B2 (en) | 2011-10-07 | 2015-08-25 | Exxonmobil Chemical Patents Inc. | Process for producing phenol |
| US9663418B2 (en) | 2013-03-04 | 2017-05-30 | Exxonmobil Chemical Patents Inc. | System and process for making cyclohexylbenzene |
-
1961
- 1961-06-05 LU LU40220D patent/LU40220A1/xx unknown
- 1961-06-05 BE BE604628A patent/BE604628A/en unknown
- 1961-06-09 ES ES0268096A patent/ES268096A1/en not_active Expired
- 1961-06-09 GB GB20945/61A patent/GB929680A/en not_active Expired
- 1961-06-09 CH CH672361A patent/CH401994A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9115060B2 (en) | 2011-10-07 | 2015-08-25 | Exxonmobil Chemical Patents Inc. | Process for producing phenol |
| CN104030892A (en) * | 2013-03-04 | 2014-09-10 | 埃克森美孚化学专利公司 | System and process for making phenol and/or cyclohexanone |
| CN104030892B (en) * | 2013-03-04 | 2016-08-03 | 埃克森美孚化学专利公司 | For preparing the system and method for phenol and/or Ketohexamethylene |
| US9663418B2 (en) | 2013-03-04 | 2017-05-30 | Exxonmobil Chemical Patents Inc. | System and process for making cyclohexylbenzene |
Also Published As
| Publication number | Publication date |
|---|---|
| ES268096A1 (en) | 1961-09-16 |
| CH401994A (en) | 1965-11-15 |
| LU40220A1 (en) | 1961-08-05 |
| BE604628A (en) | 1961-10-02 |
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