Claims
- 1. A process for the production of a diaryl carbonate and hydrogen halide comprising contacting an aromatic hydroxy compound with a carbonyl halide in the presence of an aluminum catalyst under liquid phase reaction conditions at a reaction temperature of greater than 100.degree. and less than 150.degree. C.
- 2. The process of claim 1 wherein the reaction temperature is from 110.degree. C. to about 145.degree. C.
- 3. The process of claim 2 wherein the reaction temperature is from about 125.degree. C. to about 135.degree. C.
- 4. The process of claim 1 wherein the aromatic hydroxy compound is phenol and the carbonyl halide is phosgene.
- 5. The process of claim 1 wherein the catalyst is aluminum trichloride.
- 6. The process of claim 1 wherein the reaction is conducted neat in a melt of the aromatic hydroxy compound.
- 7. The process of claim 1 wherein the ratio of carbonyl halide to aromatic hydroxy compound is 1:1 to 1:3.
- 8. The process of claim 1 wherein the catalyst is present in an amount from 0.001 to 10 mole percent based on aromatic hydroxy compound.
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation of application Ser. No. 634,622 filed Dec. 27, 1990, now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
61-151140 |
Jul 1986 |
JPX |
Non-Patent Literature Citations (1)
Entry |
Chemical Abstract: 84(17): 121495h, 1976. |
Continuations (1)
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Number |
Date |
Country |
Parent |
634622 |
Dec 1990 |
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