A copper-cobalt-based catalyst for hydrolytic removal of organic sulfur and its preparation method
A catalyst and organic sulfur technology, applied in the field of copper-cobalt-based catalysts and their preparation, can solve the problems of easy loss of active alkali metal species, catalyst deactivation, etc., achieve high-efficiency catalytic hydrolysis performance, high raw material utilization, reduce environmental protection and production cost effect
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Embodiment 1
[0025] Add 0.0305g (0.13mmol) copper nitrate trihydrate and 3.6378g (12.50mmol) cobalt nitrate hexahydrate to 80mL ethylene glycol, stir at 300r / min for 1 hour until completely dissolved, then add 1.1g (27.5mmol) to the solution ) sodium hydroxide, after stirring vigorously at 600r / min for 1 hour, add 0.5g polyvinylpyrrolidone (PVP) and 0.5g oxalic acid and stir thoroughly for 1 hour, transfer the mixed solution to a polytetrafluoroethylene lining, and place under high pressure Reacted at 180°C for 18 hours in a kettle reactor. After the reaction is finished, cool to room temperature, then use ethanol and deionized water to centrifuge and wash until the pH of the supernatant is neutral, then dry the precipitate in an oven at 80-100°C for 12 hours to constant weight, and after grinding, you will get The solid powder was calcined at 350°C for 3 hours in an air atmosphere, then mechanically pressed into tablets, and sieved (40-60 mesh) to obtain Cu / Co 3 o 4 Catalyst, denoted as...
Embodiment 2
[0027] Add 0.1589g (0.66mmol) copper nitrate trihydrate and 3.6378g (12.50mmol) cobalt nitrate hexahydrate to 80mL ethylene glycol, stir the solution at 300r / min for 1 hour until completely dissolved, then add 1.1g (27.5 mmol) sodium hydroxide, after stirring vigorously at 600r / min for 1 hour, add 0.5g polyvinylpyrrolidone (PVP) and 0.5g oxalic acid and stir thoroughly for 1 hour, transfer the mixed solution to a polytetrafluoroethylene lining, place In an autoclave reaction device, the reaction was carried out at 180° C. for 18 hours. After the reaction is finished, cool to room temperature, then use ethanol and deionized water to centrifuge and wash until the pH of the supernatant is neutral, then dry the precipitate in an oven at 80-100°C for 12 hours to constant weight, and after grinding, you will get The solid powder was calcined at 350°C for 3 hours in an air atmosphere, then mechanically pressed into tablets, and sieved (40-60 mesh) to obtain Cu / Co 3 o 4 Catalyst, de...
Embodiment 3
[0029] Add 0.2626g (1.09mmol) copper nitrate trihydrate and 3.6378g (12.50mmol) cobalt nitrate hexahydrate to 80mL ethylene glycol, stir at 300r / min for 1 hour until completely dissolved, then add 1.1g (27.5mmol) to the solution ) sodium hydroxide, after stirring vigorously at 600r / min for 1 hour, add 0.5g polyvinylpyrrolidone (PVP) and 0.5g oxalic acid and stir thoroughly for 1 hour, transfer the mixed solution to a polytetrafluoroethylene lining, and place under high pressure Reacted at 180°C for 18 hours in a kettle reactor. After the reaction is finished, cool to room temperature, then use ethanol and deionized water to centrifuge and wash until the pH of the supernatant is neutral, then dry the precipitate in an oven at 80-100°C for 12 hours to constant weight, and after grinding, you will get The solid powder was calcined at 350°C for 3 hours in an air atmosphere, then mechanically pressed into tablets, and sieved (40-60 mesh) to obtain Cu / Co 3 o 4 Catalyst, denoted as...
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