Enhanced reaction system and method for preparing polypropylene by slurry method

• Main Authors: ZHANG ZHIBING, WANG BAORONG, TIAN HONGZHOU, LUO HUAXUN, ZHOU ZHENG, ZHANG FENG, YANG GUOQIANG, YANG GAODONG, LI LEI, MENG WEIMIN, CAO YU
• Format: Patent
• Language: Chinese; English
• Published: 06.11.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides an enhanced reaction system and a method for preparing polypropylene by slurry method. The enhanced reaction system comprises a prepolymerization reactor and a polymerization reactor which are sequentially connected, the prepolymerization reactor is provided with a prepolymerization micro-interface generator used for dispersing broken materials into micro-bubbles, and the polymerization reactor is provided with a micro-interface generator unit; a polymerization reaction product outlet is formed in the bottom of the polymerization reactor; the polymerization reaction product outlet is connected with a flash tank and is used for carrying out flash evaporation on a polymerization reaction product; a first gas phase outlet is formed in the top of the flash tank, and materials discharged from the first gas phase outlet are introduced into a pre-washing tower for washing and impurity removal; the micro-interface generator is arranged on the prepolymerization reactor, and meanwhile, the micro-