Production system and process for preparing ultra-high molecular weight polyethylene by batch method slurry process

Abstract

The invention discloses a production system and process for preparing ultra-high molecular weight polyethylene by a batch method slurry process, wherein the system consists of a polymeric kettle, a catalyst hopper, an activating agent hopper, a condensing liquid separation tank, a condenser, a circulation fan, a flash evaporation kettle, an ethylene feeding flow rate control system, a propane feeding system, a reaction control system, a propylene feeding system and an activating agent metering feeding system. The process comprises a raw and auxiliary material feeding flow, a polymerization flow, a recovery processing flow and a product processing flow. The production system and the process have the advantages that the work procedures of filtering, drying, refining and the like required bya conventional ultra-high molecular weight polyethylene slurry process using conventional solvents such as hexane, solvent oil, butane and the like can be avoided; the production cost is reduced.

Description

technical field [0001] The invention relates to a preparation system and process of ultra-high molecular weight polyethylene, in particular to a production system and process for preparing ultra-high molecular weight polyethylene by a batch slurry process. Background technique [0002] Ultra-High Molecular Weight Polyethylene, referred to as UHMW-PE, is a polyethylene with a molecular weight of more than 1.5 million. In 1957, the United Chemical Company of the United States first prepared UHMW-PE, and then Germany realized industrial production in 1958. After that, the United States and Japan's Mitsui Chemical Industry successively shifted from resin sales to UHMW-PE production, and focused on developing its application fields. my country's Shanghai Gaoqiao Chemical was successfully developed in 1964 and realized industrialized mass production. After the 1970s, Anhui Chemical Research Institute, Guangzhou Plastics Factory, and Beijing No. 2 Auxiliary Factory all began to rea...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved in the present invention is that the traditional slurry method for producing ultra-high molecular weight polyethylene has the disadvantage of complex solvent removal.

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