A kind of alkali fusion method for continuously decomposing zircon sand
A technology of zircon sand and alkali melting, applied in zirconium halide and other directions, can solve the problems of low production efficiency, high production cost and high energy consumption, and achieve the effects of easy operation, improved labor productivity, compact and reasonable process
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example 1
[0051] Heat the solid alkali and zircon sand to 600°C and 700°C respectively, then add the zircon sand and alkali with a molar ratio of 1:6 to the ore alkali respectively into the alkali fusion reaction device for continuously decomposing zircon sand, vertical reaction The reaction temperature in the reactor is 650°C, the reaction time is 1.5min, and the residence time is 30min in a rotating cylinder reactor with a temperature of 700°C, and the alkali fusion decomposition product is obtained. The decomposition rate of zircon sand after washing and acid decomposition is 96.56%.
example 2
[0053] Heat the solid alkali and zircon sand to 600°C and 700°C respectively, then add the zircon sand and alkali with a molar ratio of 1:6 to the ore alkali respectively into the alkali fusion reaction device for continuously decomposing zircon sand, vertical reaction The reaction temperature in the reactor is 700°C, the reaction time is 1.5min, and the residence time in the rotating cylinder reactor with a temperature of 750°C is 30min, and the alkali fusion decomposition product is obtained. The decomposition rate of zircon sand after water washing and acid decomposition is 97.15%.
example 3
[0055] Heat the solid alkali and zircon sand to 600°C and 700°C respectively, then add the zircon sand and alkali with a molar ratio of 1:6 to the ore alkali respectively into the alkali fusion reaction device for continuously decomposing zircon sand, vertical reaction The reaction temperature in the reactor is 750°C, the reaction time is 1.5min, and the residence time in the rotating cylinder reactor with a temperature of 750°C is 30min, and the alkali fusion decomposition product is obtained. The decomposition rate of zircon sand after water washing and acid decomposition is 98.08%.
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