Ruthenium iridium catalyst, preparation method and application thereof in hydrogenolysis reaction of 5-hydroxymethylfurfural
A technology of hydroxymethylfurfural and hydrogenolysis reaction, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve waste liquid's environmental pollution and catalyst activity Low cost, high cost of precious metals, etc., to achieve the effects of low hazard, easy separation of products and recovery of catalysts, and improvement of reaction speed
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Embodiment 1
[0038] The preparation process of target catalyst 0.5%Ir-1%Ru / C:
[0039] First, 1 mL of RuCl with a concentration of 5 mg / mL 3 ·3H 2 O solution and 1 mL of IrCl at a concentration of 2.5 mg / mL 3 ·xH 2O solution was poured into a 250ml round bottom flask, then poured into 100ml deionized water and stirred evenly. During the stirring process, NaOH solution with a concentration of 1 mg / mL was added dropwise until the pH of the solution was about 5. Continue to add 18 mg of polyvinylpyrrolidone with an average molecular weight of 10,000, and stir for 15 minutes. Then 492.5 mg of activated carbon was added to make the theoretical metal loading ratio 0.5% iridium: 1% ruthenium. After stirring for 6 hours under dark conditions, the above solution was filtered with suction. Suction filter and wash with 1.5 L of deionized water at a temperature of 90° C. until the filtrate becomes a colorless transparent liquid. The filter membrane used for suction filtration is an organic phas...
Embodiment 2
[0056] The preparation process of the target catalyst 0.5%Ir-0.5%Ru / C:
[0057] First, 0.5 mL of RuCl with a concentration of 5 mg / mL 3 ·3H 2 O solution and 1 mL of IrCl at a concentration of 2.5 mg / mL 3 ·xH 2 O solution was poured into a 250ml round bottom flask, then poured into 100ml deionized water and stirred evenly. During the stirring process, NaOH solution with a concentration of 1 mg / mL was added dropwise until the pH of the solution was about 4. Continue to add 12 mg of polyvinylpyrrolidone with an average molecular weight of 20,000, and stir for 15 minutes. Then 492.5 mg of activated carbon was added to make the theoretical metal loading ratio 0.5% iridium:0.5% ruthenium. After stirring for 6 hours under dark conditions, the above solution was filtered with suction. Suction filter and wash with 1.5 L of deionized water at a temperature of 90° C. until the filtrate becomes a colorless transparent liquid. The filter membrane used for suction filtration is an or...
Embodiment 3
[0059] The preparation process of target catalyst 0.5%Ir-4%Ru / C:
[0060] First, 4 mL of RuCl with a concentration of 5 mg / mL 3 ·3H 2 O solution and 1 mL of IrCl at a concentration of 2.5 mg / mL 3 ·xH 2 O solution was poured into a 250ml round bottom flask, then poured into 100ml deionized water and stirred evenly. During the stirring process, NaOH solution with a concentration of 1 mg / mL was added dropwise until the pH of the solution was about 6. Continue to add 54 mg of polyvinylpyrrolidone with an average molecular weight of 30,000, and stir for 15 minutes. Then 477.5 mg of activated carbon was added to make the theoretical metal loading ratio 0.5% iridium:4% ruthenium. After stirring for 6 hours under dark conditions, the above solution was filtered with suction. Suction filter and wash with 1.5 L of deionized water at a temperature of 100° C. until the filtrate becomes a colorless transparent liquid. The filter membrane used for suction filtration is an organic pha...
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