SYNTHETISCHE SCHMIERFETTE FÜR DIE LEBENSMITTELINDUSTRIE

Abstract

Synthetic oils, produced in the GDR were tested as to their applicability to the production of synthetic lubricating greases, using several different gel forming agents. It could be shown that a grease, formulated with di-ethyl-hexyl-phthalate and Li-12-hydroxi-stearic acid was lowtemperature resistant and was equal in quality to a commercial product used as reference substance. Other experimental products met these quality specifications only, if special oxidation inhibitors were added, as stability requirements could not be met with the usual additive brands. These products were successfully processed on pilot plant scale. Subsequently it could be shown, that the necessary soap content of the greases, produced with the above mentioned synthetic oils had to be higher than that of analogous hydrocarbon oils. Finally it could be shown, that low temperature resistant and at the same time non-carcinogenic greases, meeting requirements of the food processing industries may be produced with a polypropylene-glycol-oil and Aldistearate, using special, nontoxic additives.