PATENT

3072. -----[RUHRCHEMIE, A.G.] [Process for Producing Liquid Emulsions.]  German Patent Appl. --, R 653, filed Dec. 30, 1942. TOM Reel 36, bag 3,454, item 36, 2 pp.; Meyer Transl. PC-S-IV, Wax Oxidation, vol. 1, ch.17, 1948, p. 43.

In preparing liquid emulsions, the distillation residues from the oxidation of paraffins are repeatedly treated with alkali bichromate-H₂SO₄ solutions and the refined products used as emulsifier.  Example: 3 kg. of the refined distillation residue from paraffin oxidation are mixed with 15 kg. of a synthetic spindle oil which has a viscosity of 1.7° E at 50°. The mixture is heated to 120° and saponified with a solution of 572 gm. KOH in 500 cc. H₂O.  Under intensive stirring and at a temperature of 90°-95° about 12 l. H₂O, to which are added 150 gm. KOH, are emulsified into the saponified product.  There results a very good, viscous, stable emulsion, which can be diluted in proportion of 1 of emulsion to 10 of H2O.  The product is useful as boring oil, paper-impregnating agent, and disinfectant medium.