FIELD: machine building.
SUBSTANCE: used oil is heated to 90°C and processed, in mixing, by water solution of electrolyte (silicate and sodium, potassium and lithium carbonate) in amount of 0.4-0.6 wt % of oil weight. Then, water solution of lithium, sodium or potassium salt of perfluoroether-perfluorocarboxylic acid and organic cation-active coagulant in amount of 0.3-0.4 wt % of oil weight are added to said mix. Thereafter, slime and extracted oil are separated.
EFFECT: pollution-free method, higher degree of cleaning.
2 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF REGENERATING EXHAUSTED LUBRICATING OILS | 1997 |
|
RU2133262C1 |
| METHOD FOR REGENERATING FIRE-RESISTANT SYNTHETIC TURBINE OILS BASED ON COMPLEX PHOSPHORIC ACID ETHERS | 2016 |
|
RU2635542C1 |
| METHOD FOR REGENERATING FIRE-RESISTANT SYNTHETIC TURBINE OILS BASED ON COMPLEX PHOSPHORIC ACID ETHERS | 2016 |
|
RU2735224C1 |
| METHOD FOR REGENERATION OF EXHAUSTED WATER-EMULSION LUBRICATION FLUID | 2000 |
|
RU2177984C1 |
| METHOD OF REGENERATING EXHAUSTED MINERAL OILS AND THEIR MIXTURES | 2002 |
|
RU2206606C1 |
| METHOD FOR REGENERATING SPENT TRIARYL PHOSPHATE FIRE-RESISTANT TURBINE OIL | 2020 |
|
RU2750729C1 |
| WASHING SOLUTION FOR REGENERATION OF USED FIRE-RESISTANT TRIARYL PHOSPHATE TURBINE OIL AND REGENERATION METHOD OF USED FIRE-RESISTANT TURBINE OIL WITH ITS USE | 2018 |
|
RU2674992C1 |
| PROCESS FOR RECOVERING OIL-BEARING WASTES | 0 |
|
SU979496A1 |
| PROCESS FOR PURIFYING FLUOROCHLOROCARBON FLUIDS | 1991 |
|
RU2015954C1 |
| LUBRICATING OIL REGENERATION PROCESS | 2004 |
|
RU2266316C1 |
