Claims
- 1. A platinum-free catalyst consisting essentially of
- 1. an alumina base;
- 2. chlorine in an amount within the range of 0.1 to 5 weight percent calculated as hydrogen chloride based on the weight of said catalyst; and
- 3. 0.01 to 5 weight percent lead calculated as PbO based on the weight of said catalyst.
- 2. A catalyst according to claim 1 wherein said base is gamma-alumina.
- 3. A catalyst according to claim 1 wherein said chlorine is imparted by contacting said alumina with a hydrochloric acid solution.
- 4. A catalyst according to claim 1 wherein said lead is introduced by impregnating said base with a solution of a lead compound and thereafter contacting said thus impregnated base with air at an elevated temperature to oxidize said lead compound to said PbO.
- 5. A catalyst according to claim 4 wherein said base is gamma-alumina, and wherein said chlorine is imparted by contacting said alumina with a hydrochloric acid solution.
CROSS REFERENCE TO RELATED APPLICATION
This application is a division of copending application Ser. No. 526,940, filed Nov. 25, 1974 now U.S. Pat. No. 3,929,623.
US Referenced Citations (4)
Divisions (1)
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Number |
Date |
Country |
Parent |
526940 |
Nov 1974 |
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