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How is phthalic anhydride manufactured?

How is phthalic anhydride manufactured? Correct Answer Oxidation of naphthalene

Naphthalene mixture are melted and vaporized later it undergoes conversion in a fixed bed converter. Dehydrogenation of ethyl benzene and Hydrogenation dehydration of acetophenone is used for the manufacture of styrene.

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Molten phthalic anhydride is stored in a/an __________ vessel.
__________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol).
Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.
Phthalic anhydride is made by the
Phthalic anhydride is used
Phthalic anhydride is produced by the oxidation of