Answered: what is the role of silica in the…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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what is the role of silica in the metallurgy of copper?

Expert Solution

Step 1

The most important ore of copper found on the earth is the copper-pyrite ore whose chemical formula is CuFeS₂. The roasting of this pyrite ore is done in the three steps as shown below.

Step 2

During this metallurgical process, iron oxide also forms along with copper oxide. This iron oxide is removed by adding silica. Silica reacts with iron oxide to form FeSiO₃ by which all iron oxide present in the system get removed in the form of slag and only copper is obtained as a final product.

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