In the extraction of Al,the chemical used in | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The Serpek process is used for the purification of bauxite ore $(Al_2O_3 \cdot 2H_2O)$ containing silica $(SiO_2)$ as an impurity.In this process,

Vedclass · Accepted Answer

$C + N_2$

Vedclass · Answer

(B) The Serpek process is used for the purification of bauxite ore $(Al_2O_3 \cdot 2H_2O)$ containing silica $(SiO_2)$ as an impurity.In this process,the bauxite ore is heated with coke $(C)$ and nitrogen $(N_2)$ at a temperature of about $1800 \ ^\circ C$.This reaction forms aluminum nitride $(AlN)$: $Al_2O_3 + 3C + N_2 \rightarrow 2AlN + 3CO$.The aluminum nitride is then hydrolyzed to produce aluminum hydroxide,which is further calcined to get pure alumina $(Al_2O_3)$.

In the extraction of $Al$,the chemical used in the Serpek process is:

Similar Questions

Which step is involved in the extraction of $Pb$ from galena $(PbS)$?

Froth floatation process is used for the concentration of the ore of

The function of potassium ethyl xanthate in the froth floatation process is to make the ore

What is the role of a depressant in the froth flotation process?

Which one of the following ores is best concentrated by froth floatation method?

Vedclass Test Series

Exam Paper Generator

Online Exam Module