Chemical Engineering - Mechanical Operations - Discussion

Discussion Forum : Mechanical Operations - Section 1 (Q.No. 11)
11.
Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of
bronze
stainless steel
flint or porcelain
concrete
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Ankesh said:   10 years ago
Material should be such that it should be inert.

Susheel bhardwaj said:   9 years ago
As all other materials contain iron.

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