TH8915B - A process and equipment for the removal of non-polymerized gaseous monomers from olefin polymers. - Google Patents

Abstract

A device for the removal of monomers from solid olefin polymers contained in the monomer, consisting of a tapered disposal vessel, here the container is 0.5 to 1 to 10 in height per diameter. Per 1 and with a wall tapered to an axial angle from 0.5 to 15 degrees; Solids discharge unit located in the lower part of the disposal container; Solid receptor hoppers; Entrance of the solid that is in the receiving hopper; Way of entering the address in the receiving hoppers that connect to the entrance. For feeding solids into the disposal container; The entrapment path through which the gas is impermeable, the solid is not under the path. Enter which sets the upper limit of the solids extended bed and determines the gas collection chamber between Tops of the disposal container and the detention routes; The path of the gas inlet in the disposal vessel, inside or under Expanded bed of solids; And gas exhaust paths connected to the gas collection chamber for The gas is discharged from the chamber, and the process of removing the non-polymerized monomer from the solid oleifin polymer pellets. And gaseous monomers using the apparatus

Claims (7)

1. Equipment for removing unpolymerized monomers from olifin polys. Solid mers with monomers which consists of: a disposal container with tapered walls which the container is proportional height-to-diameter base 0.5 to 1 to 10 to 1, and the wall tapered at an angle of 0.5 to 15° relative to the vertical axis; solids discharge unit located in the lower part of the disposal container ; hoppers that accept solids ; the entrance of the solid in the receiving hopper ; The input method is in the hopper that Get connected to the inlet for solids feeding into the disposal container ; gas-solid confinement path impermeable below the feed path defining the upper limit of the extended bed of solids and set the gas collection chamber between the top of the disposal container and the confinement path ; The inlet path of the gas in disposal containers inside or under the extended bed of solids ; Gas vent paths that are in contact with the room. Collect gas for venting the gas from the room. 2. 1. 3. Equipment according to claim 2 herein, the height-to-diameter ratio at the bottom is 1.5 to 1 to 3 to 1. 4. Method for removing gaseous monomers that are not polymerized from Mixture of solids Polymer Olifin Granules and the aforementioned gaseous monomers, comprising countercurrent removal gases through the bed of the mixture in the device of claim 1, removal of the purge gas. and unreactive gaseous monomers from the apparatus and the removal of olifin polymer pellets from the aforementioned apparatus. 5. Claim method 4, herein the polymer is (a) the homopolymer of ethylene or propylene; (b) the copolymer of the majority mol of ethylene. N (greater than 50%) and the minority molar percentage of alpha-olifin containing one or more 3-8 carbon atoms (c) copolymer of the majority (greater than 50 percent) molar percentage of Prometheus. pylene of alpha olifin containing 4 to 8 carbon atoms or more; (d) polyvinyl chloride; (e) polybutadiene or polyisoprene. (f) "Sticky Polymer" 6. Claim Method No. 5 In this case, "Sticky Polymer" is selected from the group that Contains ethylene-propylene rubber and ethylene-propylene-diene rubber, propylene ethylene block copolymer containing high ethylene, poly(1-butene) , ethylene-butene rubber, hexene-containing terpolymer ethylene-propylene ethylidine-norbornine and ethylene propylene hexadiene-terpolymer 7. Claim Method 5 In this case, the polymer is polybutadiene or polyocycline.