| 摘要 |
Ecology of the environment and conservation of energy-containing mineral hydrocarbon raw material due to secondary use after treatment of the refined oils and cutting oils in the metal-working industry and in machine engineering. The method involves intensive treatment, without heating, of the raw material by extractant-absorbents in the form of aqueous solutions of phosphoric, hydrochloric and sulphuric acids, caustic soda at concentrations from 2 up to 88 % by mass with a volumetric ratio for the "extractant:raw material" from 1:1 up to 1:60, without drying or subsequent drying and neutralisation over oxides, hydroxides, salts of alkaline and alkali-earth metals. The method includes treatment of the raw material with the adsorbent where the raw material is filtered through charcoal or hard coal or coke cut with sand in a mass ratio from 1:0.5 to 1:45 and particle dispersion of 160-400 mu m.
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