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Latest Inventions  Prospecting, production activity and waste handling of minerals Refining SPENT MOTOR OIL REGENERATION METHOD
SPENT
MOTOR OIL REGENERATION METHOD
FIELD: lubricants.
SUBSTANCE: spent motor oil is first freed from
suspended impurities and then subjected to distillation removal of water and
light hydrocarbon fractions followed by extraction of lube fractions with
precipitating solvent. According to invention, before extraction, gas oil
fraction is removed and part of tarasphaltene compounds obtained in extraction
stage is recycled into extraction apparatus to create internal reflux.
EFFECT: simplified process due to reduced number
of stages and improved quality of oils. 1 tbl, 3 ex
Zherebtsov V.L.,
Merkulov O.A., Peganova M.M.
Patent number: 2211240
Publishing date: October 7, 2003
To make the order on reception of the complete information under the invention, interesting for you
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