US 2026/0055217 A1 · DEVICE AND METHOD FOR PREPARING POLYPROPYLENE

Device and method for preparing polypropylene

AssigneeTianhua Institute of Chemical Machinery and Automation Co., Ltd

InventorsWanyao ZHANG, Yanshun SHEN, Julong LIANG, Shuai HUANG, Xiaoyang ZHANG, Jiangang WANG, Yuanyue LIANG, Shijun WANG, Shanfu CAO, Juntao LI, Lei WANG, Yaxiang LI, Huanhuan SI, Xin GU, Zhongfu ZHAN

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Abstract

A device and method for preparing polypropylene. The device includes: a polymerization unit, a steaming unit and a drying unit, wherein the polymerization unit includes a pre-polymerization kettle, a first reactor, a first reaction condenser, a first propylene condensate tank and a second reactor; the first reactor is in communication with the pre-polymerization kettle; the first reaction condenser is in communication with a top of the first reactor; a top of the first propylene condensate tank is in communication with the first reaction condenser and the first reactor, respectively, and a bottom of the first propylene condensate tank is in communication with the first reactor; and a top of the second reactor is in communication with a bottom of the first reactor.

Claims10

Dependent claims

A device for preparing polypropylene, comprising a polymerization unit, a steaming unit and a drying unit;

wherein the polymerization unit comprises a pre-polymerization kettle, a first reactor, a first reaction condenser, a first propylene condensate tank and a second reactor;
wherein the first reactor is in communication with the pre-polymerization kettle;
the first reaction condenser is in communication with a top of the first reactor;
a top of the first propylene condensate tank is in communication with the first reaction condenser and the first reactor, respectively, and a bottom of the first propylene condensate tank is in communication with the first reactor;
and a top of the second reactor is in communication with a bottom of the first reactor.

2 more elements

Dependencies are inferred from the claim text.