Preparation method for high-activity palladium-carbon catalyst
A palladium-carbon catalyst and high-activity technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as large differences in catalyst activity, unstable product activity, and complex processes, and achieve cost reduction Low cost, small metal particles and simple process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0020] The preparation method of highly active 10% palladium carbon catalyst, its step is as follows:
[0021] Weigh 240 mg of ammonium tetrachloropalladate and 24 mg of polyvinylpyrrolidone respectively, add 30 mL of distilled water to dissolve, place them in an ultrasonic wave for 30 min, and set aside. Weigh 1.0 g of activated carbon and 50 mg of glucose and add them to the above solution. After mixing evenly, raise the temperature to 40°C and stir for 12 h, react at a microwave power of 350 W for 2 min, filter, wash, and dry to obtain a highly active palladium-carbon catalyst.
[0022] The catalyst is used in the debenzylation experiment, and the debenzylation can reach 98.0% with a selectivity of 99.5%.
Embodiment 2
[0024] The preparation method of highly active 5% palladium carbon catalyst, its step is as follows:
[0025] Weigh 120 mg of ammonium tetrachloropalladate and 6 mg of polyvinylpyrrolidone respectively, add 30 mL of distilled water to dissolve them, place them in an ultrasonic wave for 30 min, and set aside. Weigh 1.0 g of activated carbon and 30 mg of glucose and add them to the above solution. After mixing evenly, raise the temperature to 40°C and stir for 12 h, react at a microwave power of 200 W for 1.5 min, filter, wash, and dry to obtain a highly active palladium carbon catalyst.
[0026] This catalyst is used in the debenzylation experiment, the debenzylation can reach 98.1%, and the selectivity is 99.6%.
Embodiment 3
[0028] The preparation method of highly active 15% palladium carbon catalyst, its step is as follows:
[0029] Weigh 360 mg of ammonium tetrachloropalladate and 24 mg of polyvinylpyrrolidone respectively, add 30 mL of distilled water to dissolve, place them in an ultrasonic wave for 30 min, and set aside. Weigh 1.0 g of activated carbon and 100 mg of glucose and add them to the above solution, mix evenly, raise the temperature to 40°C and stir for 24 h, react at a microwave power of 400 W for 3 min, filter, wash, and dry to obtain a highly active palladium carbon catalyst.
[0030] This catalyst is used in the debenzylation experiment, the debenzylation can reach 98.2%, and the selectivity is 99.6%.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More