| 摘要 |
FIELD: chemistry; construction. ^ SUBSTANCE: asphalt is obtained from atmospheric oxygen oxidation of a mixture of asphaltite from propanoic deasphalting of tar with an additive. The additive is chosen from a group comprising: heavy gas oil from catalytic cracking, slop (heavy straight-run gas oil, 470-520°C fraction), residual extract from selective oil purification, in quantity of 1-10 wt % of oxidation raw material. The oxidation mixture is brought to 70-80°C temperature, and the oxidation product is compounded with tar in the ratio 30-35 wt %: 65-70 wt % respectively, obtaining the end product. ^ EFFECT: high quality road asphalt, more cost effectiveness and improvement of ecological factors of oil refining. ^ 5 ex, 2 tbl |
