GB809992A - Recovery of indene by azeotropic purification with furfural - Google Patents
Recovery of indene by azeotropic purification with furfuralInfo
- Publication number
- GB809992A GB809992A GB14873/57A GB1487357A GB809992A GB 809992 A GB809992 A GB 809992A GB 14873/57 A GB14873/57 A GB 14873/57A GB 1487357 A GB1487357 A GB 1487357A GB 809992 A GB809992 A GB 809992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- indene
- per cent
- furfural
- recovery
- oils
- 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
- C07C7/04—Purification; Separation; Use of additives by distillation
- C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
- C07C7/06—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by azeotropic distillation
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
Indene is recovered from mixtures of hydrocarbons containing indene by subjecting the mixtures to azeotropic distillation using furfural as the azeotropic former to remove non-indene constituents in the form of other azeotropes and recovering indene of enhanced purity. The feed mixture may be an oil obtained by fractional distillation of coal tar oils, water gas oils, drip oils which contain in addition to indene, benzene, styrene, ethyl benzene, trimethyl benzene, methyl pyridines, benzonitrile, coumarone, or methyl coumarone. In a preferred embodiment 80 parts of a coal tar naphtha fraction having a boiling range of 135-189 DEG C. is mixed with 120 parts of furfural and distilled in a 100 plate Podbielniak column at atmospheric pressure. A single treatment gave a recovery of 75 per cent of the indene originally present, the product consisting of 90-95 per cent of indene. By reprocessing the small fractions of indenecontaining material boiling immediately below and above the heart cut of indene the recovery can be increased to 85-95 per cent with a purity of 90-95 per cent. Distillation is normally at atmospheric pressure but may be at subatmospheric or superatmospheric pressure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US809992XA | 1956-07-27 | 1956-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB809992A true GB809992A (en) | 1959-03-04 |
Family
ID=22161015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14873/57A Expired GB809992A (en) | 1956-07-27 | 1957-05-10 | Recovery of indene by azeotropic purification with furfural |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB809992A (en) |
-
1957
- 1957-05-10 GB GB14873/57A patent/GB809992A/en not_active Expired
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