Downstream Processing

A typical tubular centrifuge has a bowl of 2 to 5 inch in diameter and 9 to 30 inch in height with a maximum rotating speed of

A:

15,000 to 50,000 rpm

B:

50,000 to 100,000 rpm

C:

100,000 to 150,000 rpm

D:

150,000 to 200,000 rpm

Answer: A

No answer description is available. Let's discuss.

📖

The correlation often employed to correlate adsorption data for protein is (where Y_max is the maximum amount of solute adsorbed per mass of adsorbent, X is the mass fraction of solute in the diluent phase in solute-free basis, K_L is a constant and Y is the equilibrium value of the mass of solute adsorbed per mass of adsorbent)

A:

Y = Y_maxX/(K_L+X)

B:

Y = Y_max/(K_L+X)

C:

Y = Y_maxX/K_L

D:

Y = Y_max- X/ (K_L+X)

Answer: A

No answer description is available. Let's discuss.

📖

Chromatography is based on the

A:

different rate of movement of the solute in the column

B:

separation of one solute from other constituents by being captured on the adsorbent

C:

different rate of movement of the solvent in the column

D:

any of the above

Answer: A

No answer description is available. Let's discuss.

📖

The purity of a solute collected between two times t₁ and t₂ during chromatographic separation can be calculated as

A:

amount of solute eluted - amount of impurity eluted

B:

amount of solute eluted / amount of impurity eluted

C:

amount of solvent eluted + amount of impurity eluted

D:

amount of solvent eluted / amount of impurity eluted

Answer: B

No answer description is available. Let's discuss.

📖

For the extractions operation, the selectivity should be

A:

> 1

B:

< 1

C:

1

D:

zero

Answer: A

No answer description is available. Let's discuss.

📖

Questions for: Downstream Processing