Activated Alumina Ball Production Technology

In this method, alumina hydroxide is used as raw material to go through crushing, rapid dehydration, granulation, hydration, activation roasting, screening and packaging, etc. The main technical characteristics are as follows: in the above rapid dehydration process, the inlet temperature of the flash baking furnace is 850-950℃, and the outlet temperature is controlled at 430-490℃. The formulation of the binder used in the granulation process is 100 parts of water, 8-12 parts of ammonium bicarbonate, 6-10 parts of sodium carbonate, 40-60 parts of ρ alumina, in the hydration process of the material ball, the material ball hydration treatment after steam hydration, the temperature is 90-100℃, time 4-6 hours, the activation roasting process, the roasting temperature is 390-430℃, Roasting time 30-40 minutes. The activated alumina ball produced by the process method of the invention has a specific surface of 280m # + [2] / g above, which is widely used in the petrochemical industry, especially in the purification of ethylene, butene and other chemical raw materials adsorption purification effect is very good, and can effectively prevent the isomerization reaction of butene monomer.