METHOD OF POLYMERISATION IN SUSPENSION PHASE Russian patent published in 2015 - IPC C08F2/01 C08F2/18 C08F10/00 B01J19/24 

FIELD: chemistry.

SUBSTANCE: invention relates to method of polymerisation in circulation reactor. Claimed is method of polymerisation in circulation reactor of at least one olefin monomer in liquid diluents in order to obtain suspension, including solid particles of olefin polymer and said diluents, with ratio of factual volume concentration of solid substances in suspension and maximally possible geometrical volume concentration of solid substances in suspension, measured as volume density of non-compacted precipitated layer of particles RVCSP, constitutes V×0.065 or more, and ratio of integral path of middle-size particle precipitation in any point of reactor in any direction, perpendicular to flow direction to internal diameter of reactor loop is supported lower than [0.084×(V-6.62)+(0.69-RVCSP)×1.666], where V represents rate of suspension circulation, expressed in m/s, integral path of precipitation is determined as the total distance, expressed in diameter parts, passed by particle in any direction, perpendicular to flow direction, after pump, located upstream flow. Circulation reactor includes vertical and horizontal sections, as well as one pump. RVCSP represents ratio between factual volume concentration of solid particles in suspension and maximally possible geometric volume concentration of solid particles in suspension.

EFFECT: in claimed method of polymerisation lower packing of suspension particles in the process of passage through reactor is provided.

21 cl, 4 dwg, 14 tbl, 6 ex