PATENTS

3213..----- [RUHRCHEMIE, A. G.]   [Waxes From Synthetic Paraffin.]  German Patent Appl. R 114, 807, no date (Cl. 12 o-11).  Auszüge deut. Patent-Anmeldungen, vol. 6, p. 313.

Valuable wax acids are obtained by the oxidation of synthetic hard paraffin with chromic acid or nitrous gases in the presence of nitrosyl H2SO4; neutralization with concentrated KOH; extraction with a hydrocarbon fraction boiling below the softening point of the reactants, suitably a heptane fraction; and splitting by treatment with mineral acids.

See abs. 11, 13, 184, 274, 276, 373, 454, 706, 713, 756, 757, 830, 914, 915, 916, 917, 918, 952, 1883, 1914, 2111, 2112, 2113, 2114, 2137, 2139, 2142, 2145, 2792, 2794, 2796, 2797, 2800, 2805, 2807, 2809, 2810, 2813, 2816, 2817, 2818, 2821, 2831, 2832, 2833, 2834, 2835, 3300, 3752, 3753, 3838, 3888.