METHOD OF RECYCLING OILY WASTES Russian patent published in 2016 - IPC C08J11/00 B09B3/00 C02F101/30 

FIELD: environmental protection.

SUBSTANCE: invention relates to environmental protection, particularly, to processes of recycling oily wastes and recycled filtering and absorbing waste mass, and can be used in oil and gas industry and waste treatment facilities. Preliminarily heated oily wastes and fat-and-oil industry wastes are being stirred, while stirring unslaked lime is being added portionwise, water reacting with unslaked lime is being introduced, amount of water is being determined considering water in oily wastes. Recycled filtering and absorbing waste mass produced after repeated regeneration of diatomite filtering powder is used as fat-and-oil industry wastes, oily wastes are being mixed fat-and-oil industry wastes in ratio of 1:(0.1-0.3) by weight, unslaked lime is being added in amount of 62-91 wt% of the weight of waste mixture to produce a homogeneous hydrophobic loose fine powder, and oily wastes and fat-and-oil industry wastes are being stirred, preliminary heating to temperature of 80-85 °C.

EFFECT: reduced leachability of contaminating materials from the oily waste recycling product using more effective available neutralizing components with modifier and adsorbent properties.

1 cl, 1 tbl, 6 ex