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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0311479 (1981-10-14) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 293 인용 특허 : 1 |
A polymerization process wherein a slurry of polymer and diluent is passed from the polymerization zone to a flash zone, then polymer solids having residual diluent carried thereon are passed to a purge zone wherein a heated noncombustible gas is used to remove additional amounts of diluent, and the
A polymerization process wherein a slurry of polymer and diluent is passed from the polymerization zone to a flash zone, then polymer solids having residual diluent carried thereon are passed to a purge zone wherein a heated noncombustible gas is used to remove additional amounts of diluent, and then the vapor purge zone is condensed and cooled to produce a vapor stream comprising said noncombustible gas and a liquid stream comprising diluent.
In a polymerization process wherein a slurry of olefin polymer solids and diluent is passed from the polymerization zone into a flash zone wherein a substantial portion of the diluent is separated from the polymer and the polymer solids containing residual amounts of diluent are passed to a purge zo
In a polymerization process wherein a slurry of olefin polymer solids and diluent is passed from the polymerization zone into a flash zone wherein a substantial portion of the diluent is separated from the polymer and the polymer solids containing residual amounts of diluent are passed to a purge zone wherein said polymer solids are contacted with a heated noncombustible gas to separate additional amounts of the diluent therefrom, the improvement comprising cooling and compressing the vaporous effluent from the purge zone to produce a mixed stream comprising liquid comprising said diluent and vapor comprising said noncombustible gas, separating said liquid stream and said vapor stream, using both said vapor stream and said liquid stream as heat exchange fluids for a portion of the cooling to which the mixed stream is subjected, recovering said diluent stream, and using said vapor stream as at least a portion of the noncombustible gas in the purge zone.
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