GB670445A - Recovery of by-products in the manufacture of phenol - Google Patents
Recovery of by-products in the manufacture of phenolInfo
- Publication number
- GB670445A GB670445A GB15221/49A GB1522149A GB670445A GB 670445 A GB670445 A GB 670445A GB 15221/49 A GB15221/49 A GB 15221/49A GB 1522149 A GB1522149 A GB 1522149A GB 670445 A GB670445 A GB 670445A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- cumylphenol
- alkali
- washed
- products
- 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
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/04—Purification; Separation; Use of additives by distillation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In phenol production by acidic decomposition of isopropylbenzene peroxides, the reaction mixture is fractionally distilled under non-acid conditions, i.e. pH not below 5. Thus the mixture is washed with water to remove the acid catalyst, followed by small amounts of alkali to remove organic acidic by-products and to produce the desired pH change without removing appreciable amounts of phenol. Small amounts of phenol and acetone may be recovered from the wash water. Preferably also the peroxides are alkali-washed before contact with the acidic decomposition agent. Fractional distillation of the washed decomposition products yields successively isopropylbenzene, a - methylstyrene, phenol, acetophenone and cumylphenol, the last two preferably under reduced pressure. Alternatively, after the first- and second-named have passed over, the phenol and acetophenone are removed by steam distillation and the cumylphenol extracted from the residue with alkali. The cumylphenol may then be treated as in Specification 670,444 to increase the overall yield of phenol. An example is given of the process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB15221/49A GB670445A (en) | 1949-06-08 | 1949-06-08 | Recovery of by-products in the manufacture of phenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB15221/49A GB670445A (en) | 1949-06-08 | 1949-06-08 | Recovery of by-products in the manufacture of phenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB670445A true GB670445A (en) | 1952-04-16 |
Family
ID=10055180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15221/49A Expired GB670445A (en) | 1949-06-08 | 1949-06-08 | Recovery of by-products in the manufacture of phenol |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB670445A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1025891B (en) * | 1953-09-02 | 1958-03-13 | Distillers Co Yeast Ltd | Process for the production of phenol or cresols |
| DE1128859B (en) * | 1957-07-31 | 1962-05-03 | Phenolchemie Ges Mit Beschraen | Process for the continuous neutralization of cleavage mixtures which have been obtained by cleaving alkyl aromatic hydroperoxides in the presence of acids |
| WO2007119849A1 (en) | 2006-04-17 | 2007-10-25 | Asahi Kasei Chemicals Corporation | METHOD FOR PURIFYING α-METHYLSTYRENE, AND HEAT-RESISTANT STYRENE COPOLYMER USING THE α-METHYLSTYRENE |
| CN106905103A (en) * | 2017-04-06 | 2017-06-30 | 山东建筑大学 | α-methylstyrene production technology is reclaimed in a kind of phenol raffinate |
-
1949
- 1949-06-08 GB GB15221/49A patent/GB670445A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1025891B (en) * | 1953-09-02 | 1958-03-13 | Distillers Co Yeast Ltd | Process for the production of phenol or cresols |
| DE1128859B (en) * | 1957-07-31 | 1962-05-03 | Phenolchemie Ges Mit Beschraen | Process for the continuous neutralization of cleavage mixtures which have been obtained by cleaving alkyl aromatic hydroperoxides in the presence of acids |
| WO2007119849A1 (en) | 2006-04-17 | 2007-10-25 | Asahi Kasei Chemicals Corporation | METHOD FOR PURIFYING α-METHYLSTYRENE, AND HEAT-RESISTANT STYRENE COPOLYMER USING THE α-METHYLSTYRENE |
| EP2011807A1 (en) * | 2006-04-17 | 2009-01-07 | Asahi Kasei Chemicals Corporation | Method for purifying -methylstyrene, and heat-resistant styrene copolymer using the -methylstyrene |
| EP2011807A4 (en) * | 2006-04-17 | 2013-10-02 | Asahi Kasei Chemicals Corp | Method for purifying -methylstyrene, and heat-resistant styrene copolymer using the -methylstyrene |
| EP2743246A1 (en) * | 2006-04-17 | 2014-06-18 | Asahi Kasei Chemicals Corporation | Alpha-Metylstyrene-based copolymer |
| CN106905103A (en) * | 2017-04-06 | 2017-06-30 | 山东建筑大学 | α-methylstyrene production technology is reclaimed in a kind of phenol raffinate |
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