GB402788A - Improvements relating to diacetone alcohol - Google Patents
Improvements relating to diacetone alcoholInfo
- Publication number
- GB402788A GB402788A GB1621732A GB1621732A GB402788A GB 402788 A GB402788 A GB 402788A GB 1621732 A GB1621732 A GB 1621732A GB 1621732 A GB1621732 A GB 1621732A GB 402788 A GB402788 A GB 402788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diacetone alcohol
- water
- distilled
- temperature
- improvements relating
- 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
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
- C07C45/83—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation by extractive distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The separation of diacetone alcohol from unchanged acetone is effected by distillation under ordinary pressure in the presence of added water, which may be 10 per cent by volume of the diacetone alcohol. By the time the temperature in the still reaches 105 DEG --107 DEG C. practically the whole of the acetone and some of the water will have distilled off. The rest of the water is then distilled off under considerably reduced pressure so as to prevent the temperature rising above about 105 DEG C., and finally the diacetone alcohol is distilled. Alternatively the initial stages of the distillation may be effected before the addition of water, which however must be added before the temperature reaches 105 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1621732A GB402788A (en) | 1932-06-08 | 1932-06-08 | Improvements relating to diacetone alcohol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1621732A GB402788A (en) | 1932-06-08 | 1932-06-08 | Improvements relating to diacetone alcohol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB402788A true GB402788A (en) | 1933-12-08 |
Family
ID=10073295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1621732A Expired GB402788A (en) | 1932-06-08 | 1932-06-08 | Improvements relating to diacetone alcohol |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB402788A (en) |
-
1932
- 1932-06-08 GB GB1621732A patent/GB402788A/en not_active Expired
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