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Process for improving the co-polymerization of ethylene and an olefin co-monomer in a polymerization loop reactor.

An olefin comonomer and loop reactor technology, applied in the field of olefin polymerization, can solve problems such as difficulty in controlling reaction parameters, and achieve the effects of less temperature oscillation, improved fluctuation, and reduced risk of swelling

Inactive Publication Date: 2007-02-28
TOTAL RES & TECH FELUY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main problem in such a copolymerization process is that the control of the reaction parameters is very difficult

Method used

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  • Process for improving the co-polymerization of ethylene and an olefin co-monomer in a polymerization loop reactor.
  • Process for improving the co-polymerization of ethylene and an olefin co-monomer in a polymerization loop reactor.
  • Process for improving the co-polymerization of ethylene and an olefin co-monomer in a polymerization loop reactor.

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Embodiment Construction

[0026] The invention is particularly applicable to the copolymerization process of ethylene and olefin comonomers in a polymerization loop reactor. The term "ethylene copolymerization" includes the copolymerization of ethylene and olefinic comonomers. Polymerization of ethylene involves feeding to a reactor reactants comprising monomeric ethylene, light hydrocarbon diluent, catalyst, comonomer and optionally a cocatalyst and a terminator such as hydrogen. The term "copolymer" means a polymer prepared by linking two different types on the same polymer chain.

[0027] Olefin comonomers suitable according to the present invention may include, but are not limited to, aliphatic C 3 -C 20 alpha-olefins. suitable aliphatic C 3 -C 20 Examples of alpha-olefins include propylene, 1-butene, 4-methyl-1-pentene, 1-hexene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene ene, 1-hexadecene, 1-octadecene and 1-eicosene. The invention is specifically described with reference to the copolym...

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Abstract

The present invention relates to a process for improving the co-polymerization of ethylene and an olefin co-monomer, preferably hexene, in a polymerization loop reactor characterized in that said process comprises the step of controlling the co-monomer / monomer ratio along the path of the reactor, and in particular by multiple, spat Tally separated, feeding of monomer along the path of the loop reactor. In another aspect, the invention relates to a polymerization loop reactor suitable for the co-polymerization process of ethylene and an olefin co-monomer, preferably hexene.

Description

technical field [0001] The present invention relates to the field of olefin polymerization. In particular, the present invention relates to a process for improving the polymerization of monomers and olefinic comonomers in a polymerization loop reactor. In another aspect, the present invention relates to a polymerization reactor suitable for the polymerization process of monomers and olefin comonomers. Background technique [0002] Polyethylene (PE) is polymerized by ethylene (CH 2 =CH 2 ) monomers are synthesized. Polyethylene polymers are used in many applications because PE is cheap, safe, stable to most environments and easy to process. Polyethylene can be classified into several types according to properties, such as but not limited to LDPE (low density polyethylene), LLDPE (linear low density polyethylene), and HDPE (high density polyethylene). Each type of polyethylene has different properties and characteristics. [0003] Polyethylene polymerisation is generally...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/02C08F2/14C08F210/16
CPCC08F210/16C08F2/001C08F2/14C08F210/14C08F210/02C08F210/00C08F2/01C08F2/18
Inventor 埃里克·达米
Owner TOTAL RES & TECH FELUY
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