Question

6. The manufacture of such products as penicillin, tetracycline, vitamins, and other pharmaceuticals, as well as photographic chemicals, dyes, and other fine organic compounds, usually requires separating the suspended solids from their mother liquid by centrifugation, and then drying the wet cake. A closed-loop system (figure) for centrifuge unloading, drying, conveying, and solvent recovery is comprised of equipment especially designed for handling materials requiring sterile and contamination-free conditions.
Given the experimental measurements on the pilot plant equipment outline in figure:
a. Draw and label a flowchart of the process.
b. What is the lb/hr of the recycle stream R?

0.4 lb Vitamins
Feed Stream
Recycle Stream b H20
98 lb/hr
20% Vitamin Solution
Continuous
Filter
H20
Vitoming
(496 H2O per lb
Vitamins+H20
is Carried Off)
100%
Centrifuge
60% Vitamins
40% H2O

Image Transcription

0.4 lb Vitamins Feed Stream Recycle Stream b H20 98 lb/hr 20% Vitamin Solution Continuous Filter H20 Vitoming (496 H2O per lb Vitamins+H20 is Carried Off) 100% Centrifuge 60% Vitamins 40% H2O

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