BUTADIENE RUBBER MANUFACTURING PROCESS (VARIATIONS)

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FIELD : rubber industry.SUBSTANCE : invention relates to a process of manufacturing butadiene rubber, which is product of stereospecific solution polymerization of butadiene or butadiene with isoprene in presence of rare-earth element-based complex catalyst. In one embodiment of the process, blend composed of butadiene or butadiene/isoprene, hydrocarbon solvent and catalytic complex is charged into polymerizer, said catalytic complex being formed by interaction of rare-earth element, diene hydrocarbon, organoaluminum compound, and haloorganic compound. To that end, prior to be charged into polymerizer, blend is supplemented by more organoaluminum compound being mixed with the latter under turbulence conditions, whereupon catalytic complex is added to turbulently moving stream. Turbulence conditions are created with the aid of convergent-divergent-type mixer or Rashig rings, or pump. In another embodiment, organoaluminum compound is additionally added to blend, after which the blend is mixed with organoaluminum compound and catalytic complex preliminarily formed under turbulence conditions, after which mixture is charged into polymerizer under turbulent stream movement conditions, these conditions being created as described above. It is also possible that blend is preliminarily mixed with organoaluminum compound, after which catalytic complex is added, all operations being also performed under turbulence conditions.EFFECT : reduced consumption of catalytic complex when butadiene rubber is manufactured with required Mooney viscosity index.3 cl, 3 dwg, 5 ex