Nitrogen-and-phosphorus co-doped carbon-based cobalt catalyst and preparation method thereof, and synthetic method of saturated aliphatic primary amine
A technology of carbon-based cobalt catalyst and cobalt catalyst, which is applied in the direction of catalyst activation/preparation, preparation of amino compounds, chemical instruments and methods, etc., and can solve the problems of ammonia-containing tail gas treatment, poor catalyst stability, decreased activity and selectivity, etc. , to achieve the effects of simple processing, excellent cycle stability, improved conversion rate and selectivity
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[0081] This embodiment provides a method for preparing a carbon-based cobalt catalyst co-doped with nitrogen and phosphorus, the preparation method comprising the following steps:
[0082] (1) Mix 100.84g activated carbon (carbon content 84.5%, pore volume 9.6cm 3 / g, the specific surface area is 273m 2 / g), 30.72g cobalt nitrate hexahydrate, 51.03g urea, 9.79g triphenylphosphine and solvent (100.66g water and 101.29g ethanol), the time of stirring and mixing is 12h, obtains the mixed material;
[0083] (2) The mixed material was slowly evaporated to dryness at 55° C. for 24 hours to remove the solvent to obtain the precipitated material;
[0084] (3) The precipitating material is placed in a tube furnace after being ground evenly, and pyrolyzed in an argon atmosphere, and the mass space velocity of the argon is 1h -1 , the temperature was raised to 600°C at 5°C / min, and the pyrolysis time was 2h to obtain a nitrogen-phosphorus co-doped carbon-based cobalt catalyst.
[0085...
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