| 摘要 |
The invention relates to a method for drying and degassing polyolefins in which the polymerization product leaving a polymerization reactor is brought into contact with a degassing medium and simultaneously decompressed. The degassing medium employed according to the invention is the monomer to be polymerized, which, in particular, flows through a decompression tank in a circulation process and which is preferably also enriched with ethylene or other low-boiling olefins in an amount in the range from 0 to 100 mol %, based on the total amount of circulating gas. A polymerization in an amount of up to 10%, based on the total polymerization conversion, takes place in accordance with the invention inside the decompression tank.
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