Fremgangsmåde til fremstilling af saltblandinger af alkalimetalsalte af O,O-dialkyldithiophosphorsyrer og alkalimetalcarbonater

Production of salt mixtures comprised of alkali metal salts of O,O-dialkyldithiophosphoric acids of the general formula (RO)2PS(SMe), in which Me stands for the alkalies sodium or potassium, and R stands for identical or different alkyl radicals of branched or unbranched linear hydrocarbon compounds having from one to 18 carbon atoms, and of corresponding alkali metal carbonates by reacting an 0,0-dialkyldithiophosphoric acid with an excess of carbonates of the said alkalies Me. The salt mixtures are more particularly produced by introducing into the 0,0-dialkyldithiophosphoric acid at least one of the above alkali metal carbonates so as to produce a mixture of alkali metal salt of 0,0-dialkyldithiophosphoric acid and excess alkali metal carbonate with an overall alkali metal carbonate content of between 10 and 30 weight percent, and subjecting the resulting reaction product to finishing treatment.