반응 #548580

반응 방정식

napthalene

succinic acid

phthalic acid

maleic acid

napthoquinone

napthoquinone

→

phthalic anhydride

수율 99.0%

반응 조건

후처리

1. 1
   기타The optimum yield of phthalic anyhdride is produced in the temperature range of 360° ± 10° C, with temperatures over or under this range
2. 2
   기타resulting in over or under oxidation

실험 절차

The optimum yield of phthalic anyhdride is produced in the temperature range of 360° ± 10° C, with temperatures over or under this range resulting in over or under oxidation, respectively, of the napthalene yielding undesirable products such as 1-4 napthoquinone, phthalic acid, maleic acid, succinic acid, etc. With a vanadium pentoxide catalyst structure made according to the present invention, a yield of 99% phthalic anhydride was obtained with only a slight trace of 1-4 napthoquinone. Throughout this reaction, the temperature of the catalyst structure was easily maintainable within the optimum operating temperature range of 360° C ± 10° C.

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