GB1191631A - Separation of M-Cresol from Cresol Mixtures - Google Patents
Separation of M-Cresol from Cresol MixturesInfo
- Publication number
- GB1191631A GB1191631A GB2304366A GB2304366A GB1191631A GB 1191631 A GB1191631 A GB 1191631A GB 2304366 A GB2304366 A GB 2304366A GB 2304366 A GB2304366 A GB 2304366A GB 1191631 A GB1191631 A GB 1191631A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cresol
- adduct
- mixtures
- separation
- suitably
- 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
- C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,191,631. Separating mixtures of phenolic isomers. STRUTHERS SCIENTIFIC & INTERNATIONAL CORP. 23 May, 1967 [24 May, 1966], No. 23043/66. Heading C2C. In separating m-cresol from cresol mixtures, by forming an adduct with urea and then decomposing the adduct into its components at a higher temperature, the process is accelerated by adding a small proportion of an activation agent to the mixture. The specified activation agents are nitrites, chromates, bromates, iodates, molybdates, phosphates or ammonium salts, to which sodium chloride may be added. The ureaphenol adduct is separated by crystallization, suitably at 50-55‹ F., and is later decomposed by heating, suitably at 110‹ F., or above. A suitable laboratory apparatus and a full-scale plant are described, and in the latter the separation of the adduct from the mixture is effected in stages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2304366A GB1191631A (en) | 1966-05-24 | 1966-05-24 | Separation of M-Cresol from Cresol Mixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2304366A GB1191631A (en) | 1966-05-24 | 1966-05-24 | Separation of M-Cresol from Cresol Mixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1191631A true GB1191631A (en) | 1970-05-13 |
Family
ID=10189174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2304366A Expired GB1191631A (en) | 1966-05-24 | 1966-05-24 | Separation of M-Cresol from Cresol Mixtures |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1191631A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855195A (en) * | 1970-07-22 | 1974-12-17 | Sumitomo Chemical Co | Method for producing pure m-cresol |
| CN103204766A (en) * | 2013-03-01 | 2013-07-17 | 北京旭阳化工技术研究院有限公司 | Method for separating and purifying m-cresol from mixture of m-cresol and p-cresol |
| CN115124408A (en) * | 2022-07-28 | 2022-09-30 | 天津大学 | Co-crystallization resolution method of cresol isomer mixture |
-
1966
- 1966-05-24 GB GB2304366A patent/GB1191631A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3855195A (en) * | 1970-07-22 | 1974-12-17 | Sumitomo Chemical Co | Method for producing pure m-cresol |
| CN103204766A (en) * | 2013-03-01 | 2013-07-17 | 北京旭阳化工技术研究院有限公司 | Method for separating and purifying m-cresol from mixture of m-cresol and p-cresol |
| CN115124408A (en) * | 2022-07-28 | 2022-09-30 | 天津大学 | Co-crystallization resolution method of cresol isomer mixture |
| CN115124408B (en) * | 2022-07-28 | 2023-07-25 | 天津大学 | Co-crystallization resolution method of cresol isomeride mixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |