C5 petroleum resin is converted into C5 hydrogenated petroleum resin by hydrogenation under palladium bimetallic catalyst. The catalyst contains alumina-titania composite carrier and metal palladium and metal molybdenum or metal tungsten supported on the composite carrier;Petroleum Resin The content is 0.2-0.4% based on the weight of the catalyst;Petroleum Resin and the weight ratio of metal palladium to metal molybdenum or metal tungsten is 1:0.8-2; the process conditions of C5 petroleum resin catalytic hydrogenation are: reaction temperature 70-150℃,Petroleum Resin reaction The pressure is 3-8MPa and the feed space velocity is 1-3h-1.
The prepared C5 hydrogenated petroleum resin has a bromine value of <1,Petroleum Resin Gardner color of less than 2,Petroleum Resin and a softening point higher than 100°C. The hydrogenation conversion rate is as high as 93-98%. It can be widely used in adhesives,Petroleum Resin road marking paints, and inks And rubber industries.
Continuous alkaline washing method of C5 petroleum resin: including the following steps: C5 petroleum resin polymerized liquid,Petroleum Resin alkaline liquid and demulsifier are passed through a static mixer. Pre-mixed to form a mixed liquid,Petroleum Resin which continuously enters the polymerization termination tank for full mixing and decatalysis And the polymerization is terminated, through the pipeline pump. The material liquid in the polymerization termination tank is forcibly mixed,Petroleum Resin and the mixed material liquid enters the cone settling tank. Settling,Petroleum Resin the petroleum resin feed liquid continuously enters the next process through the top of the kettle,Petroleum Resin and the bottom of the kettle controls the slag discharge.
Advantages: The continuous feeding and discharging process in the alkaline washing process is conducive to maintaining the stability of product quality,Petroleum Resin effectively preventing emulsification and entraining resin material liquid in the drainage, etc., and reducing corrosion of the equipment and saving costs. An efficient,Petroleum Resin economical, and low-contamination continuous alkaline washing method.
