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US 10,246,534 B2Granted
Apparatus for preparing polybutadiene
AssigneeLG Chem, Ltd.
InventorsWoo Sung Hwang, Jun Seok Ko, Hoi In Jeong, Jong Ku Lee
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Abstract
Provided is an apparatus for preparing polybutadiene which may improve productivity by minimizing a plugging phenomenon during the preparation of polybutadiene and increasing a conversion rate.
Claims19
An apparatus for preparing polybutadiene, the apparatus comprising:
- two first polymerization reactors arranged in parallel to reduce a plugging phenomenon, wherein butadiene monomer, a polymerization catalyst, and a solvent are supplied and the butadiene monomer is polymerized;
- at least one second polymerization reactor arranged in series with the parallel-arranged two first polymerization reactors, wherein a first polymerization solution containing a butadiene polymer discharged from the parallel-arranged two first polymerization reactors is supplied and a butadiene polymerization reaction is performed;
- and
- one or more condensers which condense gases discharged from the parallel-arranged two first polymerization reactors and the second polymerization reactor and supply a condensate to the parallel-arranged two first polymerization reactors and/or the second polymerization reactor,
- wherein the gases discharged from the parallel-arranged two first polymerization reactors and the second polymerization reactor are condensed in different condensers connected to each reactor.
2 more elements
Dependencies are inferred from the claim text.