Question

One of the by-products formed during the recovery of $N{H}_3$ from Solvay process is:

• A. $NaHC{O}_3$
• B. $Ca(OH{)}_2$
• C. $CaC{l}_2$
• D. $N{H}_{4}Cl$

Answer 1

The correct option is C $CaC{l}_2$

This process is also termed as ammonia recovery .

The calcium hydroxide is reacted with the ammonium chloride separated out of the carbonating tower by filtration:
$2N{H}_{4}Cl\left(aq\right)+Ca\left(OH{)}_2\right(aq)\to CaC{l}_2(aq)+2N{H}_3(g)+2H_{2}O(l)$
The ammonia is recycled back into the process to form ammoniated brine.
Calcium chloride $\left(CaC{l}_2\right)$ is formed as a by-product of the Solvay Process