chalcopyrite (CuFeS2) ore, assaying about 1.5% Cu, must be routinely sampled for assay to a desired sampling accuracy of ±0.02% Cu, a certainty of 0.99% (2.576 standard deviation). The CuFeS2 is essentially liberated from quartz gangue. The top size of the ore after crushing is 1.5 cm whilst the grain size of CuFeS2 is 0.01 cm. The specific gravity of CuFeS2 is 4.2 whilst the overall specific gravity of ore is 2.8. Determine the minimum sample weight (in grams) needed for testing assuming broad size distribution
chalcopyrite (CuFeS2) ore, assaying about 1.5% Cu, must be routinely sampled for assay to a desired sampling accuracy of ±0.02% Cu, a certainty of 0.99% (2.576 standard deviation). The CuFeS2 is essentially liberated from quartz gangue. The top size of the ore after crushing is 1.5 cm whilst the grain size of CuFeS2 is 0.01 cm. The specific gravity of CuFeS2 is 4.2 whilst the overall specific gravity of ore is 2.8. Determine the minimum sample weight (in grams) needed for testing assuming broad size distribution
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
Related questions
Question
A chalcopyrite (CuFeS2) ore, assaying about 1.5% Cu, must be routinely sampled for assay to a
desired sampling accuracy of ±0.02% Cu, a certainty of 0.99% (2.576 standard deviation). The
CuFeS2 is essentially liberated from quartz gangue. The top size of the ore after crushing is 1.5 cm
whilst the grain size of CuFeS2 is 0.01 cm. The specific gravity of CuFeS2 is 4.2 whilst the overall
specific gravity of ore is 2.8. Determine the minimum sample weight (in grams) needed for testing
assuming broad size distribution
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemical-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
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…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
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…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The