Because of its similarmicrostructure and physical and mechanical properties with NR, IR which isprepared with isoprene monomer by solution polymerization is known as"synthetic natural rubber", and the only alternative to NR used inthe fields of tire and rubber products.

 30ktrare earth IR industrial technology

The research of rare earthIR in Yanshan branch of BRICI began in 2007. The rare earth IR industrialtechnology with complete independent intellectual property was developedintegrating the homogeneous phase efficient rare-earth catalyst system, threereactors adiabatic continuous polymerization process, low viscosity cementtransmission technology, slipping and post-processing technology, solventrecovery technology and related analysis methods. The technology has reachedthe international level. The 30 kt rare earth IR plant was built and run successfullyusing this technology in Sinopec Yanshan Petrochemical in 2013, filling thegaps in the production of IR in Sinopec and successfully drove to Sinopec.Products are qualified through several tire manufacturers on trial, and to acertain extent, improve the performance of tires.

The technical index of rareearth IR products

Figure 31 30000 tpy IR commercial plant

Figure 32   the processingline of 30000 tpy IR plant

Preparation technology of rare earthcatalyst for IR

The rare earth IRindustrial technology was developed by Yanshan branch of BRICI use neodymiumcarboxylic as catalyst. The preparation technology of 560 tpy rare earthcatalyst was developed at the same time. Beijing Yanshan catalyst Co. Ltd. usedthis technology to build industrial plant and successfully put into operationin 2013. The products are qualified and the catalytic activity is equal to theimported products, which fully meet the requirements of producing rare earthIR.

The technical index ofrareearth catalyst for IR