Enhanced reaction system and method for preparing polypropylene

• 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 a reinforced reaction system and a method for preparing polypropylene. The system comprises a pre-polymerization reactor and a polymerization reactor which are connected in sequence, the pre-polymerization reactor is provided with a pre-polymerization micro-interface generator used for dispersing crushed materials into small liquid drops, and the polymerization reactor is provided with a micro-interface generator set used for dispersing the crushed materials into small liquid drops; 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 which is used for carrying out flash evaporation on a polymerization reaction product; a product outlet for discharginga polypropylene product is formed in the bottom of the flash tank. According to the invention, the micro-interface generator is arranged on the pre-polymerization reactor, and meanwhile, the micro-interface generator set is