Sodium silicate description
There are two processes for sodium silicate production. The first one is reaction in liquid phase; the second one is reaction in solid phase. However, alkaline and quartz sand are the same raw materials used in the two processes.
Solid sodium silicate
Process reaction in solid phase (thermal process)
The feed materials in this process are sodium carbonate and quartz sand, or sodium sulfate and quartz sand. The feed materials are heated in a reflection furnace. The reaction is as following:
Na2CO3 +XSiO2 → (Na2O)•(SiO2)X + CO2
4Na2SO4 +2C +4SiO2 → 4Na2SiO3 +4SO2 +2CO2
The sodium silicate produced by this thermal process has the modules depending on requirements of different applications.
Application filed: to be widely used in glue making, melting mould casting, mine selection, fast dry cement etc field.
Produce solid sodium silicate , with the ratio 1.8-3.6, with block form.
1. Finished product to be solid, convenient for transportation, and low transportation cost.
2. Finished product used in widely range, mole ratio can be regulated during dissolving work, almost applicable for all the industrial work.
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