LECTURE 6 Chlor Alkali Industries – Soda Ash, Caustic Soda, Chlorine. Chapter 13 in Shreve’s Chemical Process Industies. Caustic soda, soda ash and chlorine Rank close to H 2 SO 4 and NH 3 in magnitude of $ value of use Lot of consumption in making other chemicals.
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LECTURE 6ChlorAlkali Industries – Soda Ash, Caustic Soda, Chlorine
Chapter 13 in Shreve’s Chemical Process Industies
Na2CO3 + Ca(OH)2→ 2 NaOH + CaCO3
1. Brine (NaCl) 2. Electricity
Net ∆H for the overall reaction results from
2Na.Hg + 2H2O → 2 NaOH + H2 + Hg
Soda Ash Manufacture
Le Blanc Process
Waste by product CaCl2
Middle of Carbonator