GB782773A - Chlorination process - Google Patents
Chlorination processInfo
- Publication number
- GB782773A GB782773A GB2009255A GB2009255A GB782773A GB 782773 A GB782773 A GB 782773A GB 2009255 A GB2009255 A GB 2009255A GB 2009255 A GB2009255 A GB 2009255A GB 782773 A GB782773 A GB 782773A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- chloroacetyl chloride
- examples
- chlorine
- advantageously
- 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
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Chloroacetyl chloride is prepared by interacting chlorine and ketene in the liquid phase in an alkyl acetate. The reaction temperature is preferably below 50 DEG C. and advantageously between 20 DEG and 30 DEG C., and a molar excess of chlorine is preferably employed. The acetate suitably contains less than 8 carbon atoms per molecule and its volume is preferably at least 40 per cent, and advantageously 50 to 70 per cent, of that of the total reaction mixture. In a modification the acetyl chloride formed as a by-product is reacted after separation from the chloroacetyl chloride with an appropriate alkanol to form further quantities of alkyl acetate. The products of the reaction may be separated by fractional distillation, under reduced pressure for the higher boiling products including chloroacetyl chloride. Examples are given, and comparative examples in which carbon tetrachloride, light petroleum, acetyl chloride, chloroacetyl chloride and diisopropyl ether are used as diluents are provided, the yield of dichloroacetyl chloride by-product in these examples being given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2009255A GB782773A (en) | 1955-07-12 | 1955-07-12 | Chlorination process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2009255A GB782773A (en) | 1955-07-12 | 1955-07-12 | Chlorination process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB782773A true GB782773A (en) | 1957-09-11 |
Family
ID=10140243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2009255A Expired GB782773A (en) | 1955-07-12 | 1955-07-12 | Chlorination process |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB782773A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758571A (en) * | 1971-10-26 | 1973-09-11 | Monsanto Co | Preparation of monohaloacetyl halides |
| US4143067A (en) * | 1976-12-22 | 1979-03-06 | Lonza, Ltd. | Process for the production of chloroacetyl chloride |
| US4801750A (en) * | 1981-03-26 | 1989-01-31 | Lonza Ltd. | Process for the produciton of 2-chloroacetoacetic acid amides |
| CN113087617A (en) * | 2021-03-10 | 2021-07-09 | 江苏琦衡农化科技有限公司 | Preparation method and preparation device of trichloroacetyl chloride |
-
1955
- 1955-07-12 GB GB2009255A patent/GB782773A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758571A (en) * | 1971-10-26 | 1973-09-11 | Monsanto Co | Preparation of monohaloacetyl halides |
| US4143067A (en) * | 1976-12-22 | 1979-03-06 | Lonza, Ltd. | Process for the production of chloroacetyl chloride |
| US4801750A (en) * | 1981-03-26 | 1989-01-31 | Lonza Ltd. | Process for the produciton of 2-chloroacetoacetic acid amides |
| CN113087617A (en) * | 2021-03-10 | 2021-07-09 | 江苏琦衡农化科技有限公司 | Preparation method and preparation device of trichloroacetyl chloride |
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