METHOD OF ANTI-TURBULENT ADDITIVE PRODUCING WITH MONOMER RECYCLING Russian patent published in 2017 - IPC C08F10/00 C08F10/14 C08F2/02 C08F4/642 C10L1/10 C10L1/14 

FIELD: machine building.

SUBSTANCE: invention relates to production of anti-turbulence additives, reducing hydrodynamic resistance in oil and oil products transportation pipelines. Disclosed is anti-turbulent additive producing method with monomer recycling with (co) polymerization in mass of higher α-olefins to preset degree of conversion of 5–15 %. Formation of (co) polymer solution in monomer involves (co) polymer depositing due to reaction mixture contact with precipitator with simultaneous polymerization process stoppage. Used precipitation agent is substance with boiling temperature higher than monomer boiling point. Before obtained (co) polymer deposition precipitator is placed in separate deposition reactor and heated to temperature of 40–75 °C. Supply of polymerization product in precipitator is carried out at precipitator excess in vol. ratio of polymer:precipitator from 1:1.35 to 1:3.8. Deposition is carried out in deposition reactor by mechanical mixing at mixing rate of 300 rpm with simultaneous distillation of unreacted monomer. Anti-agglomerator is added after reaching of polymer content level in suspension, corresponding to its required amount in additive.

EFFECT: technical result is combination of anti-turbulent additive producing process stages, providing sparing unreacted monomer regeneration conditions for preservation of its structure, reducing duration of polymer presence in monomer solution to reduce its mechanical destruction.

1 cl, 2 tbl, 8 ex