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An evaporator is fed with 17400 kg/h of a solution containing 12.1% NaCl, 19.9% NaOH, and the rest is water. In the operation, water is evaporated and NaCl is precipitated as crystals. The thick liquor leaving the evaporator contains 45% NaOH, 2% NaCl, and rest water. Calculate: (a) the amount of water evaporated. (b) the amount of salt precipitated. (c) the amount of thick liquor leaving the evaporator.

An evaporator is fed with 17400 kg/h of a solution containing 12.1% NaCl, 19.9% NaOH, and the rest is water. In the operation, water is evaporated and NaCl is precipitated as crystals. The thick liquor leaving the evaporator contains 45% NaOH, 2% NaCl, and rest water. Calculate: (a) the amount of water evaporated. (b) the amount of salt precipitated. (c) the amount of thick liquor leaving the evaporator.

Introduction to Chemical Engineering Thermodynamics
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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An evaporator is fed with 17400 kg/h of a solution containing 12.1% NaCl, 19.9% NaOH, and the rest is water. In the operation, water is evaporated and NaCl is precipitated as crystals. The thick liquor leaving the evaporator contains 45% NaOH, 2% NaCl, and rest water. Calculate: (a) the amount of water evaporated. (b) the amount of salt precipitated. (c) the amount of thick liquor leaving the evaporator.
Transcribed Image Text:An evaporator is fed with 17400 kg/h of a solution containing 12.1% NaCl, 19.9% NaOH, and the rest is water. In the operation, water is evaporated and NaCl is precipitated as crystals. The thick liquor leaving the evaporator contains 45% NaOH, 2% NaCl, and rest water. Calculate: (a) the amount of water evaporated. (b) the amount of salt precipitated. (c) the amount of thick liquor leaving the evaporator.
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