Copper matte is charged into a silica lined converter in extraction of copper. What is the role of silica lining here?

Explanation

To answer the question regarding the role of silica lining in the converter during the extraction of copper from copper matte, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding Copper Matte**:
- Copper matte is primarily a mixture of copper sulfide (Cu₂S) and iron sulfide (FeS).

2. **Role of the Converter**:
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