Solvay process (Na2CO3)

Layer 2 — Chemistryin the Petrochemistry And Industrial subtree

Soda-ash synthesis from brine + limestone + ammonia: NaCl+NH3+CO2+H2O→NaHCO3+NH4Cl; 2NaHCO3→Na2CO3+CO2+H2O. Nearly complete NH3 recovery cycle.

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