It is proposed to separate CaCO3 (solid) from slurry via crystallization. The feed slurry contains equal mass fractions of CaCO3 precipitate in a solution of NaOH and H2O. The slurry is washed with a dilute solution of 5 wt% NaOH in H2O and of an equal flow rate as the slurry. The washed slurry, after leaving the unit, contains 2 kg solution per 1 kg of solid (CaCO3). The clear solution (free of solid) withdrawn from the unit can be assumed to have the same concentration in NaOH and water as the solution withdrawn with the solid crystals. On the basis of 100 kg/h of feed slurry, draw and label the process flowchart and calculate the composition of sodium hydroxide in the clear solution
It is proposed to separate CaCO3 (solid) from slurry via crystallization. The feed slurry contains equal mass fractions of CaCO3 precipitate in a solution of NaOH and H2O. The slurry is washed with a dilute solution of 5 wt% NaOH in H2O and of an equal flow rate as the slurry. The washed slurry, after leaving the unit, contains 2 kg solution per 1 kg of solid (CaCO3). The clear solution (free of solid) withdrawn from the unit can be assumed to have the same concentration in NaOH and water as the solution withdrawn with the solid crystals. On the basis of 100 kg/h of feed slurry, draw and label the process flowchart and calculate the composition of sodium hydroxide in the clear solution
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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It is proposed to separate CaCO3 (solid) from slurry via crystallization.
The feed slurry contains equal mass fractions of CaCO3 precipitate
in a solution of NaOH and H2O. The slurry is washed with a
dilute solution of 5 wt% NaOH in H2O and of an equal flow rate as the
slurry. The washed slurry, after leaving the unit, contains 2 kg solution
per 1 kg of solid (CaCO3). The clear solution (free of solid) withdrawn
from the unit can be assumed to have the same concentration
in NaOH and water as the solution withdrawn with the solid crystals.
On the basis of 100 kg/h of feed slurry, draw and label the process
flowchart and calculate the composition of sodium hydroxide in the
clear solution.
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