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Attendant Operator Chemical Plant Practice Test: Solvent extraction and Leaching
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Attendant Operator Chemical Plant Practice Test: Solvent extraction and Leaching
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12 Questions

1. What is solvent rich product of the extraction process?
2. What is used for leaching of sugar from sugar beets?
3. Which operation involve Leaching?
4. Which extractor is used for extracting oil from oil seeds?
5. What is the use of cake obtained after leaching?
6. What does rate of leaching increase with?
7. What is the purpose of mixer used in mixer-settler extraction equipment?
8. What happens if the selectivity of the solvent is unity?
9. Which unit operation selectivity is an important parameter?
10. Which is the unit operation that separates two mixable liquids by the use of solvent?
11. Which extractor uses centrifugal force for dispersion and separation of phases?
12. What does Leaching involve?

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