Preparation method for efficiently synthesizing neopentyl glycol Ni@MoC/Al2O3 catalyst and application thereof
A neopentyl glycol and catalyst technology, which is applied in the field of preparation of catalysts for hydrogenation and efficient synthesis of neopentyl glycol, can solve the problems of high cost of separation and purification, large amount of waste water, etc., and achieve feasibility, low cost, and good stability Effect
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Embodiment 1
[0027] Prepare concentration respectively and be 1mol / L ammonium molybdate solution, concentration be 0.2mol / L nickel nitrate solution, concentration be 2mol / L aluminum nitrate solution, mix in equal volume ratio, obtain mixed solution. The preparation concentration is 2mol / L sodium carbonate solution again, with excess sodium carbonate solution (1.2 times of the total molar weight of ammonium molybdate, nickel nitrate and aluminum nitrate), under the stirring speed of 800r / min, adopt liquid phase pump to 2mL Slowly drop into the mixture at a flow rate of 1 / min, stir for 5 hours after dropping, then age for 8 hours, filter, and dry the solid in an oven at 120°C to prepare the precursor.
[0028] Put the prepared precursor into the plasma device, and pass CH under the conditions of temperature 70°C and voltage 25KV 4 and H 2 Mixed gas, where CH 4 :H 2 The volume ratio is 1:80, the mixed gas flow rate is 60mL / min, and the carbonization reduction is carried out for 2h. After t...
Embodiment 2
[0031] Prepare concentration respectively and be 3mol / L ammonium molybdate solution, concentration be 0.5mol / L nickel nitrate solution, concentration be 2mol / L aluminum nitrate solution, mix in equal volume ratio, obtain mixed solution. Then preparation concentration is 1.5mol / L sodium carbonate solution, with excessive sodium carbonate solution (1.2 times of ammonium molybdate, nickel nitrate and aluminum nitrate total molar weight), under the stirring velocity of 1000r / min, adopt liquid phase pump to Slowly drip into the mixture at a flow rate of 3 mL / min, stir for 10 h after the dropping, then age for 10 h, filter, and dry the solid in an oven at 100°C to prepare the precursor. Other operations are the same as in Example 1.
Embodiment 3
[0033] Precursor preparation is identical with embodiment 1;
[0034] Put the prepared precursor into the plasma device, and pass CH under the conditions of temperature 70°C and voltage 10KV 4 and H 2 Mixed gas, where CH 4 :H 2 The volume ratio is 1:50, the mixed gas flow rate is 100mL / min, and the carbonization reduction is carried out for 2h. After the carbonization reduction, Ni@MoC / Al 2 o 3 catalyst.
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