[China Aluminum Industry Net] Activated alumina ball production method, involving chemical alumina production process, the method uses aluminum hydroxide as raw material by crushing, rapid dehydration, granulation, hydration, activation roasting, screening packaging and other processes, The main technical feature is that in the above-mentioned rapid dehydration process, the inlet temperature of the flash roaster is 850-950°C, the outlet temperature is controlled at 430-490°C, and the formulation of the binder used in the granulation process is 100 parts water. 8-12 parts of ammonium bicarbonate, 6-10 parts of sodium carbonate and 40-60 parts of rho alumina. After hydration of the pellets, the pellets are hydrated with steam and then hydrated at a temperature of 90-100°C. Time 4-6 hours, the activation calcination process, the calcination temperature is 390-430°C, and the calcination time is 30-40 minutes. The activated alumina ball produced by the method of the present invention has a specific surface area of ​​280m#+[2]/g or more, and is widely used in the petrochemical industry, particularly in the purification of ethylene, butene, and other chemical raw materials. At the same time, it can effectively prevent the isomerization reaction of butene monomer. Hex bolts,Nuts and bolts,Lag bolts,bolts framework Jiangsu Minglu Stainless steel Co.,ltd , https://www.minglufastener.com