Preparation of naphthoquinone-1,4.

摘要

1. Process for the manufacture of 1,4-naphthoquinone by oxidation of naphthalene by means of cerium (IV) salts in solution in an aqueous acid medium, characterised in that naphthalene, in pulverulent state, is put into suspension in the ceric salt solution by means of a dispersing agent, and that the 1,4-naphthoquinone obtained is separated from the aqueous medium.