GB789914A - Phenol recovery - Google Patents
Phenol recoveryInfo
- Publication number
- GB789914A GB789914A GB3676355A GB3676355A GB789914A GB 789914 A GB789914 A GB 789914A GB 3676355 A GB3676355 A GB 3676355A GB 3676355 A GB3676355 A GB 3676355A GB 789914 A GB789914 A GB 789914A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- emulsion
- water
- phase
- ammonia gas
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Phenol is recovered from its emulsion with water by injecting into the phenol/water emulsion, a minor proportion of ammonia gas or ammonium hydroxide to break the emulsion into a phenol phase and a water phase, and recovering the phenol phase. The concentration of ammonia or ammonia gas used may be between 0.1 and 1.0 per cent by weight of the emulsion, which may also contain a minor proportion of a mineral oil. The amount of ammonia gas or ammonium hydroxide used should preferably be that which raises the pH of the emulsion to 8-8.8.ALSO:High quality mineral lubricating oils are obtained from a mineral lubricating oil fraction by adding phenol together with a minor proportion of water to adsorb collectively the aromatic constituents, separating the raffinate phase, comprising the desired refined lubricating oil and phenol/water emulsion, and an extract phase, comprising the extracted constituents and phenol/water emulsion, removing the phenol/water emulsion from both phases and passing it to a settling zone, where is added a minor proportion of ammonia gas or ammonium hydroxide to break the emulsion, from which the phenol is then recovered and recycled to contact more lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3676355A GB789914A (en) | 1955-12-22 | 1955-12-22 | Phenol recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3676355A GB789914A (en) | 1955-12-22 | 1955-12-22 | Phenol recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB789914A true GB789914A (en) | 1958-01-29 |
Family
ID=10391005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3676355A Expired GB789914A (en) | 1955-12-22 | 1955-12-22 | Phenol recovery |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB789914A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149261A (en) * | 2021-02-26 | 2021-07-23 | 禹城京都新材料科技有限公司 | Phenol-containing wastewater treatment method |
-
1955
- 1955-12-22 GB GB3676355A patent/GB789914A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113149261A (en) * | 2021-02-26 | 2021-07-23 | 禹城京都新材料科技有限公司 | Phenol-containing wastewater treatment method |
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