| 摘要 |
FIELD: environment control. ^ SUBSTANCE: the invention is pertinent to the field of environment control and is intended for solution of two the most important ecological problems: processing of polymeric waste products, liquidation of emergency spills of oil products and petroleum and purification of industrial waste water of petroleum refining industry enterprises. The method of production of the fine-grained (with a particle size of no more than 35±10 microns and a sorptive capacity of 3.5-4.0g/g) amorphous-crystalline polymeric powder provides for comminution of the waste products of polyethylene and the secondary polymeric raw material (agricultural and packing waste polymeric films, second-hand oil containers and packings, flow gates, etc.), preliminary dissolved in the organic solvents at the temperature of 90°C and at intensive mixing during 30 minutes till formation of a paraffin-shaped mass. The rotation rate of the rabble is 2500-3000 rpm. The produced mass is mixed with water and heated up to the temperature, which does not exceed by ~10°C the temperature of the polymer melting point in a big amount of a dissolvent. Then the mass is vacuumized with simultaneous condensation of vapors of dissolvent and water and their separation. The method ensures simplification of the process, increased efficiency and homogeneity of the sorbent. ^ EFFECT: the invention ensures simplification of the process, increased efficiency and homogeneity of the sorbent. ^ 1 tbl, 11 ex |
