FIELD: chemistry.
SUBSTANCE: invention is aimed at solution of environmental problems, namely, at returning waste mineral oils into production and materials recovery. Waste oil is filtered through sulfocationite based on polypropylenepolysterol fibre, then through adsorbent, containing mixture of ash spheres from wastes of coal electric power stations (ash) and wastes of water de-ironing at water intake places, with rate, ensuring time of water staying in zone of contact with adsorbent not less than 1 hour. Mixture of ash spheres from wastes of coal electric power stations (ash) and wastes of water de-ironing at water intake places with ratio of components wt fraction 1:1-2 is subjected to thermal processing within temperature range 180-250°C during 2-6 hours.
EFFECT: increase of degree of waste oil purification and materials recovery.
2 cl, 1 tbl, 11 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ADSORBENT OF COMPOUND ACTION, METHOD OF ITS OBTAINMENT AND RECOVERY | 2006 |
|
RU2343971C2 |
| METHOD FOR TREATMENT OF DEPLETED MINERAL OILS | 2005 |
|
RU2315085C2 |
| METHOD OF BADLY POLLUTED WATER INTEGRATED PURIFICATION | 2006 |
|
RU2354439C2 |
| METHOD OF PURIFYING EXHAUSTED OILS | 2003 |
|
RU2242504C1 |
| METHOD FOR PURIFYING WASTE MINERAL OIL | 0 |
|
SU1659457A1 |
| MINERAL OIL PURIFICATION METHOD | 2003 |
|
RU2245901C1 |
| METHOD OF REGENERATING EXHAUSTED MINERAL OILS AND THEIR MIXTURES | 2002 |
|
RU2206606C1 |
| METHOD FOR PURIFICATION OF WASTE VEGETABLE OIL | 1992 |
|
RU2039796C1 |
| METHOD FOR REGENERATION OF WASTE OILS | 2021 |
|
RU2782924C1 |
| METHOD OF REFINING OF SPENT OILS | 1999 |
|
RU2153526C1 |
