2127. ------. [MÄRKISCHE SEIFEN-INDUSTRIE.] [Oxidation of Hydrocarbons.] German Patent Appl. M 135,840, no date (Cl. 12 o-11). Auszüge deut. Patent-Anmeldungen, vol. 6, p. 267.

To reduce the amount of compounds insoluble in petroleum ether, small amounts, about 0.05-0.5%, of peroxides or other compounds evolving O₂ are added to the catalysts.