FIELD: process engineering.
SUBSTANCE: invention relates to chemical processing, particularly, to production of diesel fuel from waste engine oil. waste engine oil is heated to 40°-50° C, mixed with 20%-30%-water solution of sodium silicate at 20:1÷2 ratio, and centrifuged at 2500-3000 rpm for 15-20 min. Finally, precipitate is separated to be vacuum rectified.
EFFECT: higher-quality diesel fuel.
1 dwg,1 tbl, 3 ex
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