GB362817A - A process for making chlorobenzene - Google Patents
A process for making chlorobenzeneInfo
- Publication number
- GB362817A GB362817A GB10819/31A GB1081931A GB362817A GB 362817 A GB362817 A GB 362817A GB 10819/31 A GB10819/31 A GB 10819/31A GB 1081931 A GB1081931 A GB 1081931A GB 362817 A GB362817 A GB 362817A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- impregnated
- copper
- copper chloride
- catalysts
- 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
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/15—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination
- C07C17/152—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons
- C07C17/156—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons of unsaturated hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
In the chlorination of benzene by passing its vapour mixed with hydrogen chloride and oxygen, with or without nitrogen, steam or other diluents, over catalysts at elevated temperatures not exceeding 300 DEG C., the catalysts contain, besides copper, one or more metals of groups 3-8 of the periodic system. Preferably the metals or their compounds are precipitated on a carrier having a large surface area. Examples describe the use of the following catalysts: (1) silica gel impregnated with copper chloride and cobalt chloride; (2) kieselguhr impregnated with copper chloride and nickel chloride; (3) active carbon impregnated with copper chloride and manganese chloride; (4) aluminium hydroxide impregnated with copper chloride and cerium chloride; (5) the product obtained by acidifying with hydrochloric acid a solution containing sodium aluminate, copper chloride and iron chloride; (6) Florida earth impregnated with copper chloride and iron chloride. Chromium is also specified as a constituent of the catalysts and pumice as a carrier.ALSO:Chlorobenzene is manufactured by passing a mixture of benzene vapour, hydrogen chloride and oxygen, with or without admixed steam, nitrogen or other diluent, at a raised temperature not exceeding 300 DEG C. and preferably between 150 DEG and 300 DEG C., over a catalyst containing, besides copper, one or more metals of groups 3-8 of the periodic system. Preferably the metals or their compounds are precipitated on a carrier having a large surface area. In examples, mixtures of benzene vapour, air and hydrogen chloride (in 1, 2, 3, and 6) or the vapour of aqueous hydrochloric acid (in 4 and 5) are passed over: (1) silica gel impregnated with copper chloride and cobalt chloride, at 180 DEG C.; (2) kieselguhr impregnated with copper chloride and nickel chloride, at 190 DEG C.; (3) active carbon impregnated with copper chloride and manganese chloride, at 200 DEG C.; (4) aluminium hydroxide impregnated with copper chloride and cerium chloride at 200 DEG C.; (5) the product obtained by acidifying with hydrochloric acid a solution containing sodium aluminate, copper chloride and iron chloride, at 200 DEG C.; (6) Florida earth impregnated with copper chloride and iron chloride, at 200 DEG C. Chromium is also specified as a constituent of the catalysts and pumice as a carrier.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE362817X | 1930-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB362817A true GB362817A (en) | 1931-12-10 |
Family
ID=6307748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10819/31A Expired GB362817A (en) | 1930-04-12 | 1931-04-13 | A process for making chlorobenzene |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB362817A (en) |
-
1931
- 1931-04-13 GB GB10819/31A patent/GB362817A/en not_active Expired
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