Preparation method of Ru-B load type catalyst
A supported catalyst and catalyst technology, applied in the direction of catalyst carriers, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of corrosiveness, explosion, and high price, and achieve efficiency improvement, cost reduction, and saving The effect of dosage
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Embodiment 1
[0022] Catalyst preparation
[0023] Preparation of 1.35%B / ZrO by Equal Immersion Method 2 -ZnO. Drop an aqueous solution containing 0.072g of boric acid into 3g of ZrO 2 -In the ZnO carrier, stir evenly to form a paste. Keep it at room temperature for 10 h, then put it in an oven at 100°C overnight. Baked at 450°C for 5 hours in a muffle furnace.
[0024] Preparation of Catalyst 4%Ru-1.35%B / ZrO by Conventional Impregnation Method 2 -ZnO. Will contain 0.12gRuCl 3 The solution of the solution was dropped into 3 g of the carrier prepared above, stirred evenly to form a paste, kept at room temperature for 10 h, dried at 100°C for 10 h, and reduced at 300°C for 5 h in a hydrogen atmosphere.
[0025] Catalyst evaluation
[0026] 60 ml of water, 11 g of zinc sulfate heptahydrate, 3 g of the catalyst prepared above and 40 ml of benzene were added to a stainless steel autoclave with a volume of 500 ml and previously replaced with hydrogen. React at 160°C, 5MPa hydrogen, and 1...
Embodiment 2
[0028] Catalyst preparation
[0029] 0.072g solid boric acid and 3gZrO 2 The -ZnO carrier is mixed evenly and placed in a muffle furnace to raise the temperature to 700° C. and bake for 5 hours.
[0030] Preparation of Catalyst 4%Ru-1.35%B / ZrO by Conventional Impregnation Method 2 -ZnO. Will contain 0.12gRuCl 3 The solution of the solution was dropped into 3 g of the carrier prepared above, stirred evenly to form a paste, kept at room temperature for 10 h, dried at 100°C for 10 h, and reduced at 300°C for 5 h in a hydrogen atmosphere.
[0031] Catalyst evaluation conditions were the same as in Example 1. The results are shown in Table 1.
Embodiment 3
[0033] Catalyst preparation
[0034] Preparation of Catalyst 4%Ru / ZrO by Conventional Impregnation Method 2 -ZnO. Will contain 0.12gRuCl 3 The solution was dropped into 3g carrier, stirred evenly to form a paste, kept at room temperature for 10h, and dried at 100°C for 10h. NaBH containing 0.02M NaOH was dissolved under vigorous stirring 4 The solution was dripped into the catalyst prepared above within 15 minutes. Wash the catalyst with distilled water to AgNO 3 Check for Cl - , to get 4% Ru-B / ZrO 2 - Catalyst of ZnO.
[0035] Catalyst evaluation conditions were the same as in Example 1. The results are shown in Table 1.
[0036] B's introduction method
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