Introduction
Poly-butadiene rubber (BR) is a polymer synthesized from butadiene. Poly-butadiene rubber is widely used in tire, rubber tube, rubber belt, rubber shoes etc. About 20% of synthetic rubber manufactured over the world is BR. Sinopec is the biggest BR manufacturer in Asia. Its nickel catalytic based BR package technology enjoys independent intellectual property rights. Compared with its counterparts, Sinopec technology has the advantages of mature, superior and stable product quality, low energy and material consumptions, and less emission of waste gas, waste liquid and waste solid.
Technical Characteristics
1. Product quality: Product quality is uniform and stable, in a leading position in China; quick evaluation method on the quality has been established.
2. Polymerization process: 30 m3 reactor is adopted, thus single line production capacity is high. Continuous operating cycle is long. Unique catalyst aging process is applied. Catalyst utilization rate is high with less amount of consumption. Reaction can perform at high temperature.
3. Coagulating process: adopting coagulating and stripping technology with three reactors. Steam consumption is low and solvent recovery rate is high.
4. Solvent purification process: adopting solvent and monomer recovery process flow with six columns, consumption of solvent and monomer is low.
5. Waste: discharge of waste water is small, and COD content is low. Strict emission standard for off-gas can be reached by using affiliated gas emission technology.
Poly-butadiene Rubber Production Technology