DE757288C - Manufacture of detergents - Google Patents

Description

ISSUED
AUGUST 10, 1953

164230 IVa / 2se

It has been found that a product of very high detergency is obtained if in the production of soaps from fats or fatty acids those in the action of Halogen and sulfur dioxide available on non-aromatic hydrocarbons, Sulphonic acid halide-like products containing halogen, oxygen and sulfur saponified. These sulfonic acid halide-like substances can, for. B. be produced by one derived from the catalytic hydrogenation of the oxides of carbon and from Hydrocarbon mixtures freed from unsaturated and oxygen-containing fractions, if appropriate under irradiation with short-wave light, treated with halogen and sulfur dioxide.

In this way, mixtures of ordinary soaps and the saponification products are obtained from the sulfonic acid halide-like compounds mentioned. These mixtures have easy solubility and higher foaming power than ordinary soaps. The new process is particularly advantageous, when making soap from hard fats or hard fatty acids (stearic acid) that deliver poorly foaming soaps.

The ratio of the starting materials used for the saponification can vary widely

Limits are changed, but the amounts of sulfonic acid halide-like compounds should be changed not be too large, because otherwise the amount of salt in the finished detergent will be too high and not quick and malleable Masses are preserved more. The effect of the salt content can be indicated by "accordingly larger amounts of soft fat or soft fatty acids are reduced.

ίο On the other hand, it is not necessary, as is usually the case, Use coconut or palm kernel oil as well. The new detergents have all the advantages of a high-quality soap, despite their fatty acid content is much lower than with such. The main characteristics are good solubility, stronger foaming and excellent washing performance.

You can add the detergent after saponification, best when it is still hot and liquid, the usual fillers, z. B. soluble cellulose derivatives, add. A special addition of salts is generally unnecessary and less appropriate as the detergent on anyway \ ^r the production have a more or less high salinity ago.

example

A mixture of 85 kg of hardened trans-fatty acid, 15 kg of olein and 15 kg of a product is saponified in the usual way with sodium hydroxide solution, which is obtained by hydrogenating carbon dioxide at normal pressure and freeing it from unsaturated and oxygen-containing components, between 210 and 370 ⁰ boiling oil with a density of 0.768 (20 ⁰ ) treated with chlorine and sulfur dioxide at room temperature under irradiation with mercury vapor light. An excellent foaming detergent with high detergency is obtained in this way.

Claims (1)

Claim: Production of detergents, characterized in that during the production of soaps made from fats or fatty acids those with the action of halogen and sulfur dioxide on non-aromatic ones Sulfonic acid halide-like products containing halogen, oxygen and sulfur obtainable from hydrocarbons saponified. To delimit the subject of the contract From the state of the art, the following publication is to be considered in the granting procedure been drawn: Davidsohn, "Lehrbuch der Seifenfabrikation" 1928, pp. 334 and 335. © 5320 7.