ETHYLENE OLIGOMERISATION METHOD Russian patent published in 2017 - IPC C07C2/08 C07C11/107 

FIELD: chemistry.

SUBSTANCE: present invention relates to an ethylene oligomerisation method. Method involves following steps: a) feeding ethylene, a solvent and catalyst composition containing catalyst and cocatalyst, into a reactor, b) oligomerisation of ethylene in reactor, c) discharging reactor effluent, containing linear alpha-olefins, including 1-butene, solvent, unconsumed ethylene, dissolved in output stream of reactor, and catalyst composition, from reactor, d) separation of ethylene and 1-butene together from rest of reactor effluent and e) recirculation of at least part of ethylene and 1-butene, separated at step d), into reactor. Equal amounts of 1-butene are removed from reactor with reactor effluent and recycled into reactor at step e).

EFFECT: use of disclosed method allows stable operation of reactor, improves heat removal and prevents clogging of reactor.

15 cl, 1 ex, 1 tbl, 3 dwg