| 摘要 |
FIELD: chemistry; oil refinery industry. ^ SUBSTANCE: tar is mixed with a light hydrocarbon solvent in a mixture. After mixing, the tar and the solvent are passed through homogeniser, consisting of a distributor plate with 7 to 11 openings each with diameter of 20-30 mm, and are then extracted in the extractor. Asphalt solutions and asphalt-free oil are obtained, with subsequent recovery of the solvent from the solutions and its return for mixing with tar. ^ EFFECT: increased asphalt-free oil output. ^ 1 dwg, 2 ex |
