FEEDING PURIFICATION AT AMBIENT TEMPERATURE Russian patent published in 2009 - IPC C08F10/00 C08F2/00 C08F4/64 C08F4/69 

FIELD: chemistry.

SUBSTANCE: method of olefins polymerisation includes: providing of flow feeding containing nitrogen, more than 0.1 ppm by volume of oxygen and more than 0.3 ppm by volume of carbon monooxide; passing of the feeding flow through first compacted layer with selective removal of at least part of oxygen; passing of the feeding flow through second compacted layer with selective removal of at least part of carbon monooxide with generation of purified feeding flow containing less than 0.1 ppm by volume of oxygen and less than 0.3 ppm by volume of carbon monoxide whereat the first as well as second compacted layers function at temperature from ca 0°C to ca 50°C; and the purified feeding flow is fed to the polymeriser. Also the method of olefine polymerisation is described that includes: passing of the olefine feeding flow containing from 0.1 to 5 ppm by volume of oxygen through compacted layer containing reduced metal-organic reagent which interreacts with at least part of oxygen and forms carbon dioxide whereat the reaction proceeds in conditions sufficient for obtaining of less than 0.3 ppm by volume of carbon dioxide with generating thus the purified olefine feeding flow containing less than 0.1 ppm by volume of oxygen and less than 0.3 ppm by volume of additive carbon dioxide, then the feeding flow of purified olefine ids fed to polymeriser containing the pseudoliquid layer consisting of the polymerisation catalyst sensitive to oxygen and to carbon dioxide.

EFFECT: enhanced degree of admixtures removal from feeding flow before the polymerisation, improving of the polyolefine physical properties.

6 cl, 2 dwg, 2 tbl, 10 ex