Polypropylene and application thereof, and method and device for continuously preparing polypropylene

Polypropylene and application thereof, and method and device for continuously preparing polypropylene

The invention relates to the technical field of polymers, and discloses polypropylene and application thereof, and a method and a device for continuously preparing polypropylene. The method comprises the following steps: (1) in the presence of a catalyst I, introducing a first monomer composition in...

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Hauptverfasser: YANG LIANYONG, JING ZHENGHONG, LI GUO, CHENG WEISHU, BAI YINNA, WANG XIAOQI
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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creator YANG LIANYONG
JING ZHENGHONG
LI GUO
CHENG WEISHU
BAI YINNA
WANG XIAOQI
description The invention relates to the technical field of polymers, and discloses polypropylene and application thereof, and a method and a device for continuously preparing polypropylene. The method comprises the following steps: (1) in the presence of a catalyst I, introducing a first monomer composition into a first reactor, and carrying out a first polymerization reaction to obtain a first material flow; (2) in the presence of a catalyst II, introducing the first material flow and a first part of a second monomer composition into a second reactor, and carrying out a second polymerization reaction to obtain a second material flow; (3) introducing the second material flow and a second part of a second monomer composition into a first gas phase reactor, and carrying out a third polymerization reaction to obtain a third material flow; and (4) introducing the third material flow and a third part of a second monomer composition into a second gas-phase reactor, and carrying out a fourth polymerization reaction. The polypr
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subjects CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
title Polypropylene and application thereof, and method and device for continuously preparing polypropylene
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