Homework Help is Here – Start Your Trial Now!
Engineering
Chemical Engineering
Phosphorus is prepared by heating in the electric furnace a thoroughly mixed mass of calcium phosphate, sand, and charcoal. It may be assumed that in a certain charge the following conditions exist: the amount of silica used is 10% in excess of that theoretically required to combine with the calcium to form the silicate; the charcoal is present in 40% excess of that required to combine, as carbon monoxide, with the oxygen which would accompany all the phosphorus as the pentoxide. (a) Calculate the percentage composition of the original charge. (6) Calculate the number of pounds of phosphorus obtained per 100 lb of charge, assuming that the decomposition of the phosphate iby the silica is 90% * complete and that the reduction of the liberated oxide of phosphorus, by the carbon, is 70% complete6

Phosphorus is prepared by heating in the electric furnace a thoroughly mixed mass of calcium phosphate, sand, and charcoal. It may be assumed that in a certain charge the following conditions exist: the amount of silica used is 10% in excess of that theoretically required to combine with the calcium to form the silicate; the charcoal is present in 40% excess of that required to combine, as carbon monoxide, with the oxygen which would accompany all the phosphorus as the pentoxide. (a) Calculate the percentage composition of the original charge. (6) Calculate the number of pounds of phosphorus obtained per 100 lb of charge, assuming that the decomposition of the phosphate iby the silica is 90% * complete and that the reduction of the liberated oxide of phosphorus, by the carbon, is 70% complete6

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
See similar textbooks
icon
Related questions
Question

 Phosphorus is prepared by heating in the electric furnace a thoroughly mixed

mass of calcium phosphate, sand, and charcoal. It may be assumed that in a certain

charge the following conditions exist: the amount of silica used is 10% in excess of

that theoretically required to combine with the calcium to form the silicate; the

charcoal is present in 40% excess of that required to combine, as carbon monoxide,

with the oxygen which would accompany all the phosphorus as the pentoxide.

(a) Calculate the percentage composition of the original charge.

(6) Calculate the number of pounds of phosphorus obtained per 100 lb of charge,

assuming that the decomposition of the phosphate iby the silica is 90%

* complete and that the reduction of the liberated oxide of phosphorus, by

the carbon, is 70% complete6

7. Phosphorus is prepared by heating in the electric furnace a thoroughly mixed mass of calcium phosphate, sand, and charcoal. It may be assumed that in a certain charge the following conditions exist: the amount of silica used is 10% in excess of that theoretically required to combine with the calcium to form the silicate; the charcoal is present in 40% excess of that required to combine, as carbon monoxide, with the oxygen which would accompany all the phosphorus as the pentoxide. (a) Calculate the percentage composition of the original charge. (b) Calculate the number of pounds of phosphorus obtained per 100 lb of charge, assuming that the decomposition of the phosphate by the silica is 90% complete and that the reduction of the liberated oxide of phosphorus, by the carbon, is 70% complete.
Transcribed Image Text:7. Phosphorus is prepared by heating in the electric furnace a thoroughly mixed mass of calcium phosphate, sand, and charcoal. It may be assumed that in a certain charge the following conditions exist: the amount of silica used is 10% in excess of that theoretically required to combine with the calcium to form the silicate; the charcoal is present in 40% excess of that required to combine, as carbon monoxide, with the oxygen which would accompany all the phosphorus as the pentoxide. (a) Calculate the percentage composition of the original charge. (b) Calculate the number of pounds of phosphorus obtained per 100 lb of charge, assuming that the decomposition of the phosphate by the silica is 90% complete and that the reduction of the liberated oxide of phosphorus, by the carbon, is 70% complete.
Expert Solution
steps

Step by step

Solved in 7 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The
SEE MORE TEXTBOOKS