A mill treats 500 ton/day of ore, obtaining a scheelite concentrate of 2,700 kg/day. The ore has a grade of 0.5 % WO3 and the concentrate 72% WO3. Determine: a) recovery from WO3; b) the concentration ratio; c) the

Introduction to Chemical Engineering Thermodynamics
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Chemical Engineering
A mill treats 500 ton/day of ore, obtaining a
scheelite concentrate of 2,700 kg/day. The ore
has a grade of 0.5
% WO3 and the concentrate 72% WO3.
Determine: a) recovery
from WO3; b) the concentration ratio; c) the
percentage and mass
of scheelite (in kg) in the initial feeding; d) the
percentage and
amount of scheelite (in kg) in the concentrate.
Data:
scheelite formula - CaWO4 and atomic weights
of Ca=40,
W=184 and O=16.
Transcribed Image Text:Chemical Engineering A mill treats 500 ton/day of ore, obtaining a scheelite concentrate of 2,700 kg/day. The ore has a grade of 0.5 % WO3 and the concentrate 72% WO3. Determine: a) recovery from WO3; b) the concentration ratio; c) the percentage and mass of scheelite (in kg) in the initial feeding; d) the percentage and amount of scheelite (in kg) in the concentrate. Data: scheelite formula - CaWO4 and atomic weights of Ca=40, W=184 and O=16.
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