monochloroethane.

$[8]$

Question $3$

You have been recruited as a chemical engineer at Kerala Minerals, a beneficiation plant producing Titanium dioxide $(Ti{O}_2)$ which is extensively used as a pigment. It is produced from a mineral containing ilmenite $(FeTi{O}_3)$ and ferric oxide $(F{e}_2{O}_3).$ The first step in the process involves the ore digestion with an aqueous sulfuric acid solution to produce an aqueous solution of titanyl sulphate $(Ti{O}_2)S{O}_4$ and ferrous sulphate $(FeS{O}_4).$ Secondly, water is added to the vessel to hydrolyse the titanyl sulphate into $H_{2}Ti{O}_3,$ which precipitates, and $H_{2}S{O}_4.$ The precipitate is then roasted, driving off water and leaving a residue of pure titanium dioxide. $().$

Assuming that the ore contains $24\mathrm{.}3\%$ Ti by mass is digested with an $80\%H_{2}S{O}_4$ solution, supplied in $50\%$ excess of the amount needed to convert all the ilmenite to titanyl sulphate and all the ferric oxide to ferric sulphate $F{e}_2(S{O}_4{)}_3.$ Assume that $89\%$ of the ilmenite decomposes. Determine the masses $(kg)$ of ore and $80\%$ sulphuric acid solution that must be fed to the reactor to produce I ton of pure $Ti{O}_2.$

$[$I$5]$