Title:
【発明の名称】オレフィンポリマーから未重合のガス状モノマーを除去する方法及び装置
Document Type and Number:
Japanese Patent JP3110687
Kind Code:
B2
Abstract:
An apparatus for removing monomers from a solid olefin polymer containing the monomers which comprises a purge vessel having tapered wherein the vessel has a height-to-bottom-diameter ratio of 0.5:1 to 10:1 and the walls have a tapered angle based on a vertical axis of 0.5 to 15 degrees; a solid discharge element disposed in the lower portion of the purge vessel; a solids receiving hopper; a solids inlet disposed in the receiving hopper; a feeding means disposed in the receiving hopper in communication with an inlet for feeding solids to the purge vessel; a gas-permeable, solids-impermeable constraint means disposed below the feeding means defining the upper limit of an expanded bed of solids and defining a gas collection chamber between the top of the purge vessel and the constraint means; a gas entry means disposed in the purge vessel within or below an expanded bed of solids; and gas discharge means disposed in communication with the gas collection chamber for discharging gas from the chamber, and process for removing unpolymerized gaseous monomers from a mixture of a solid, granular olefin polymer and the gaseous monomer using the apparatus.
Inventors:
Duane fan wang
Application Number:
JP27287096A
Publication Date:
November 20, 2000
Filing Date:
September 25, 1996
Export Citation:
Assignee:
Union Carbide Chemicals and Plastics Technology Corporation
International Classes:
B01J8/00; B01J8/18; C08C3/02; C08F2/00; C08F2/01; C08F6/00; C08F6/10; C08F114/06; C08F110/00; C08F114/00; C08F136/00; C08F136/06; C08F136/08; C08F210/00; (IPC1-7): C08F6/10; C08F2/01; C08F110/00; C08F114/06; C08F136/06; C08F136/08; C08F210/00
Domestic Patent References:
| JP6206926A | ||||
| JP3215509A | ||||
| JP5186512A | ||||
| JP5155912A |
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)