CS217424B1 - A method for producing lubricating oils, predominantly low-fat lubricating oils - Google Patents

Abstract

The invention relates to a method for producing low-solidifying lubricating oils with very good low-temperature properties while simultaneously producing proteins from paraffinic oils with possible sulfur and nitrogen content. The object of the invention is to economically produce from the above-mentioned starting materials, firstly proteins with a good yield per unit volume per unit time and secondly lubricating oils exhibiting both good low-temperature properties and good viscosity-temperature properties, good aging resistance and high antioxidant stability. It was found that the purpose of the assignment is achieved when the starting products for the production of lubricating oils together with paraffinic kerosene, diesel and gas oil components are subjected to biological dewaxing in such a way that the processed starting products after hydrotreating and separation into at least one lighter fraction and a lubricating oil fraction with a flash point above 100 °C have a freezing point in the range from minus 1% to minus 18 °C and the required freezing point is achieved by adding 0.1 to 3 wt. % of a depressant. As raw material for biological processing, petroleum fractions and products produced on their basis with a boiling point from 230 °C to 420 °C are suitable.

Description

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Claims (1)

PREFERRED EMBODIMENTS 217 424 A process for the production of lubricating oils, predominantly low-fat oils, with simultaneous production of paraffinic crude proteins with the possible sulfur and nitrogen content using known techniques, characterized in that the material consisting of petroleum fractions and products is based on them, divide the processed hydrocarbon mixture into a fractionation oil and at least one lighter fraction according to the desired point in the flare after the hydrotreatment, the treatment being carried out until the fractionation oil reaches the freezing point within minus 1 ° C to minus 18 ° C and add depressants. Recognized by the invention on the basis of the results of expertise carried out by the Office of Invention and Patenting, Berlin, DD