3032. ----- [RUHRCHEMIE, A. G.] [Process for Making Emulsifiers.] German Patent Appl. R 111,978, R 599, filed Jan. 14, 1942, TOM Reel 36, bag 3,454, item 36, 4 pp.; Meyer Transl. PC-S-IV, Wax Oxidation, vol. 1, chap. 7, 1948, p. 18.

Oxidation products of solid paraffins, particularly those obtained from the catalytic hydrogenation of CO by means of oxidizing agents, especially with nitrous gases in the presence of H₂SO₄, or nitrosyl H₂SO₄ or with bichromates and H₂SO₄, are neutralized in melted condition < 130°, preferably not > 100°, through the action of virtually H₂O-free, strongly alkaline agents. H₂O-free alkali carbonate or organic amines such as triethanalomine may be used until 25-80% of the fatty acids present are saturated. About 50-75% of the paraffin-oxidation products, which are to be partly neutralized, is combined in a 1^st step with the whole alkaline agent required, whereupon the remainder of the paraffin-oxidation products are added in a final 2d step. Especially valuable emulsifiers are produced in this manner, particularly when paraffin-oxidation products are used that were produced by help of nitrous gases in the presence of nitrosyl H₂SO₄ or H₂SO₄. These products contain small amounts of organic N compounds, the presence of which has been found to increase the emulsifing power.