| CPC B01J 37/038 (2013.01) [B01J 23/80 (2013.01); B01J 37/06 (2013.01); C07C 5/48 (2013.01); C07C 2523/80 (2013.01)] | 8 Claims |
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1. A method for manufacturing a catalyst for oxidative dehydrogenation reaction, the method comprising:
preparing a catalyst co-precipitation solution containing a zinc precursor and an iron precursor, wherein the zinc precursor and the iron precursor are each independently one or more selected from the group consisting of a nitrate, an ammonium salt, a sulfate, and a chloride; and
obtaining a catalyst slurry by washing and filtering the catalyst co-precipitation solution using a filter press comprising a plurality of filter plates,
wherein each of the plurality of filter plates comprises a stock solution through hole located at a center of the filter plate, and a first quadrant region to a fourth quadrant region arranged around the stock solution through hole,
wherein each of the first quadrant region to the fourth quadrant region comprises a washing water through hole,
wherein the washing water is fed through one or more of the stock solution through hole and at least one of the washing water through holes,
wherein the washing water is discharged through one or more of the washing water through holes,
wherein a discharge rate of the washing water is 5 kg/min or less, and a discharge pressure of the washing water is 0.5 bar to 10 bar, and
wherein the catalyst is a zinc-ferrite-based catalyst.
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