Wills' Mineral Processing Technology

by Wills

• ISBN13: 9780750644501
• ISBN10: 0750644508
• Edition: 7th
• Format: Paperback
• Copyright: 2006-10-13
• Publisher: Elsevier Science

Summary

Wills' Mineral Processing Technology provides practising engineers and students of mineral processing, metallurgy and mining with a review of all of the common ore-processing techniques utilized in modern processing installations. Now in its Seventh Edition, this renowned book is a standard reference for the mineral processing industry. Chapters deal with each of the major processing techniques, and coverage includes the latest technical developments in the processing of increasingly complex refractory ores, new equipment and process routes. This new edition has been prepared by the prestigious J K Minerals Research Centre of Australia, which contributes its world-class expertise and ensures that this will continue to be the book of choice for professionals and students in this field. This latest edition highlights the developments and the challenges facing the mineral processor, particularly with regard to the environmental problems posed in improving the efficiency of the existing processes and also in dealing with the waste created. The work is fully indexed and referenced. The classic mineral processing text, revised and updated by a prestigious new team Provides a clear exposition of the principles and practice of mineral processing, with examples taken from practice Covers the latest technological developments and highlights the challenges facing the mineral processor New sections on environmental problems, improving the efficiency of existing processes and dealing with waste.

Table of Contents

Preface to 7th Edition	ix
Contributors	x
Acknowledgements	xi
Introduction	1	(29)
Minerals and ores	1	(6)
Mineral processing methods	7	(7)
Efficiency of mineral processing operations	14	(2)
Concentration	16	(4)
Economics of tin processing	20	(3)
Economics of copper processing	23	(3)
Economic efficiency	26	(2)
References	28	(2)
Ore handling	30	(9)
Introduction	30	(1)
The removal of harmful materials	30	(2)
Ore transportation	32	(2)
Ore storage	34	(2)
Feeding	36	(2)
References	38	(1)
Metallurgical accounting, control and simulation	39	(51)
Introduction	39	(1)
Sampling and weighing the ore	39	(12)
Slurry streams	51	(4)
Automatic control in mineral processing	55	(7)
Neural networks	62	(1)
Circuit design and optimisation by computer simulation	63	(1)
Mass balancing methods	64	(11)
Introduction to mass balances on complex circuits	75	(11)
Design of experiments and plant trials	86	(1)
References	86	(4)
Particle size analysis	90	(18)
Introduction	90	(1)
Particle size and shape	90	(1)
Sieve analysis	91	(6)
Sub-sieve techniques	97	(10)
References	107	(1)
Comminution	108	(10)
Introduction	108	(1)
Principles of comminution	109	(1)
Comminution theory	110	(1)
Grindability	111	(1)
Simulation of comminution processes and circuits	112	(3)
References	115	(3)
Crushers	118	(28)
Introduction	118	(1)
Primary crushers	119	(7)
Secondary crushers	126	(13)
Crushing circuits and control	139	(4)
References	143	(3)
Grinding mills	146	(40)
Introduction	146	(1)
The motion of the charge in a tumbling mill	147	(2)
Tumbling mills	149	(21)
Grinding circuits	170	(12)
References	182	(4)
Industrial screening	186	(17)
Introduction	186	(1)
Performance of screens	186	(2)
Factors affecting screen performance	188	(3)
Screen types	191	(11)
References	202	(1)
Classification	203	(22)
Introduction	203	(1)
Principles of classification	203	(3)
Types of classifier	206	(17)
References	223	(2)
Gravity concentration	225	(21)
Introduction	225	(1)
Principles of gravity concentration	225	(1)
Gravity separators	226	(1)
Jigs	227	(6)
Pinched sluices and cones	233	(3)
Spirals	236	(2)
Shaking tables	238	(3)
Pneumatic tables	241	(1)
Duplex concentrator	241	(1)
Mozley Laboratory Separator	242	(1)
Centrifugal concentrators	242	(1)
Gold ore concentrators	243	(1)
References	244	(2)
Dense medium separation (DMS)	246	(21)
Introduction	246	(1)
The dense medium	247	(4)
Centrifugal separators	251	(3)
DMS circuits	254	(1)
Typical dense medium separations	255	(2)
Laboratory heavy liquid tests	257	(3)
Efficiency of dense medium separation	260	(1)
Construction of partition curves	261	(3)
Organic efficiency	264	(1)
References	265	(2)
Froth flotation	267	(86)
Introduction	267	(1)
Principles of flotation	267	(2)
Classification of minerals	269	(1)
Collectors	270	(6)
Frothers	276	(1)
Regulators	277	(5)
The importance of pH	282	(1)
The importance of pulp potential	283	(2)
The role of bubble generation and froth performance	285	(1)
Entrainment	286	(1)
The engineering of flotation	287	(28)
Electroflotation	315	(1)
Agglomeration-skin flotation	316	(1)
Flotation plant practice	316	(3)
Reagents and conditioning	319	(1)
Control of flotation plants	320	(7)
Typical flotation separations	327	(1)
Flotation of copper ores	327	(5)
Oxidised copper ores	332	(12)
References	344	(9)
Magnetic and electrical separation	353	(20)
Introduction	353	(1)
Magnetic separation	353	(19)
References	372	(1)
Ore sorting	373	(5)
Introduction	373	(1)
Electronic sorting principles	373	(1)
Examples	374	(3)
References	377	(1)
Dewatering	378	(22)
Introduction	378	(1)
Sedimentation	378	(12)
Filtration	390	(7)
Drying	397	(1)
References	398	(2)
Tailings disposal	400	(9)
Introduction	400	(1)
Methods of disposal of tailings	400	(7)
References	407	(2)
Appendix 1 Metallic ore minerals	409	(12)
Appendix 2 Common non-metallic ores	421	(7)
Appendix 3 Excel spreadsheets for formulae in Chapter 3	428	(9)
Index	437