Chapter 22, Problem 22.43P

Interpretation Introduction

Interpretation:

The chemical equation used to show acid-base properties that help to separate iron oxide and titanium oxide from aluminium oxide has to be given.

Concept Introduction:

Bayer Process: It is an important process for extracting aluminium oxide.  It involves refining bauxite to produce alumina (aluminium oxide).  The chemical equation involved in this process is given by

    ${\text{2 NaAlO}}_{\text{2}}{\text{ + 3 H}}_{\text{2}}{\text{O + CO}}_{\text{2}}\underset{}{\overset{}{\to }}\text{ 2 Al}{\left(\text{OH}\right)}_{\text{3}}{\text{ + Na}}_{\text{2}}{\text{CO}}_{\text{3}}$