GB1094797A - Purification of 3-chloropropane-1:2-diol - Google Patents
Purification of 3-chloropropane-1:2-diolInfo
- Publication number
- GB1094797A GB1094797A GB6121/66A GB612166A GB1094797A GB 1094797 A GB1094797 A GB 1094797A GB 6121/66 A GB6121/66 A GB 6121/66A GB 612166 A GB612166 A GB 612166A GB 1094797 A GB1094797 A GB 1094797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloropropane
- diol
- epichlorhydrin
- distillation
- hydrochloric acid
- 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
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/34—Halogenated alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Epoxy Compounds (AREA)
Abstract
3-Chloropropane-1,2-diol is purified by adding epichlorhydrin to 3-chloropropane-1,2-diol having a water content of from 0.5 to 5% and possibly also hydrochloric acid as impurity and distilling off the epichlorhydrin together with water and any hydrochloric acid present to leave the desired product as a residue which is optionally further purified by fractional distillation. If desired the product may be treated at least once more by the addition and subsequent removal by distillation of epichlorhydrin prior to fractional distillation. The process may be carried out in a continuous distillation unit and the recovered epichlorhydrin fractions may be hydrolysed to 3-chloropropane-1,2-diol for use as starting material.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER39907A DE1233377B (en) | 1965-02-13 | 1965-02-13 | Method for purifying 3-chloro-propanediol- (1, 2) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1094797A true GB1094797A (en) | 1967-12-13 |
Family
ID=7405913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6121/66A Expired GB1094797A (en) | 1965-02-13 | 1966-02-11 | Purification of 3-chloropropane-1:2-diol |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH473074A (en) |
| DE (1) | DE1233377B (en) |
| GB (1) | GB1094797A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1058223A (en) * | 1973-04-05 | 1979-07-10 | Ronald G. Tigner | Removal of hbr from brominated pentaerythritols |
| CN107176903B (en) * | 2017-06-27 | 2020-12-11 | 江苏合泰新材料科技有限公司 | Method for synthesizing 3-chloro-1, 2-propanediol |
-
1965
- 1965-02-13 DE DER39907A patent/DE1233377B/en active Pending
-
1966
- 1966-02-11 GB GB6121/66A patent/GB1094797A/en not_active Expired
- 1966-02-11 CH CH194966A patent/CH473074A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE1233377B (en) | 1967-02-02 |
| CH473074A (en) | 1969-05-31 |
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