Volume 183
Minerals Beneficiation 1949
Papers and Discussions Presented at Meetings held at New York: March 19-22, 1947, February 15-19, 1948; At Denver, September 30-Oct. 1, 1947; at San Francisco, February 13-17, 1949

Title Page

Foreword By E. H. Robie

A.I.M.E. Officers and Directors

Contents

Committees

Minerals Beneficiation Division

PAPERS:

Concentration - Mill Flowsheets and Practices

TITLE	AUTHOR
Symposium on Milling Devices and Practices (Mining Tech., May 1947, TP 2162, with discussion)	J. F. Myers and R. J. Tower
Milling Lead-zinc Ores at Iron King Mine, Prescott, Arizona (Mining Tech., July 1947, TP 2191)	H. R. Hendricks
Milling Practice at New Lead-zinc Concentrator of Phelps Dodge Corporation (Mining Tech., July 1947, TP 2192)	R. C. Thompson
Milling Practices at Concentrator of Morenci Reduction Works (Mining Tech., July 1947, TP 2194)	B. H. Cody
Mufulira Copper Mines Limited, Concentrator, Northern Rhodesia (Mining Tech., Jan. 1948, TP 2250, with discussion)	Jack White and Ralph B. Adair
Description of Concentrating Operations, Roan Antelope Copper Mines Limited, Northern Rhodesia (Mining Tech., Jan. 1948, TP 2251)	M. R. Goldick
Milling Practice at Idarado Mining Company (Mining Tech., May 1948, TP 2349)	F. W. McQuiston, Jr.
Metallurgy at National Lead Company, MacIntyre Development (Mining Tech., May 1948, TP 2355, with discussion)	Frank R. Milliken

Concentration - Flotation

TITLE	AUTHOR
Tailings and Mine-dump Reclamation in the Coeur d'Alenes during World War II (Mining Tech., March 1947, TP 2145)	W. L. Zeigler
The Flotation of Fluorite (Mining Tech., July 1947, TP 2163)	Enid C. Plante
The Application of Xanthates to Flotation (Mining Tech., Sept. 1947, TP 2213)	Norman Weiss
Effect of "Metso" (Sodium Meta-silicate) on Mill Recoveries of Alta-St. Louis Ores (Mining Tech., Nov. 1947, TP 2272)	Henry P. Ehrlinger
Effects of Oxidation of Sulphide Minerals on Their Flotation Properties (Mining Tech., Jan. 1948, TP 2297)	Enid C. Plante and K. L. Sutherland
Flotation of Unoxidized and Oxidized Sulphide Minerals-Antimonite, Arsenopyrite, Covellite, Lollingite, Marcasite, Orpiment, Pyrrhotite and Tetrahedrite (Mining Tech., Jan. 1948, TP 2298)	Enid C. Plante
The Determination of Oxide Lead in Ores and Concentrator Products (Mining Tech., March 1948, TP 2303)	R. S. Young, A. Golledge, and H. L. Talbot
Attachment of Mineral Particles to Air Bubbles in Flotation (Mining Tech., March 1948, TP 2354)	H. Rush Spedden and William S. Hannan, Jr.
Flotation of Low Grade Gold Ores at Golden Cycle Corporation (Mining Tech., May 1948, TP 2361)	Howard R. Keil
Simultaneous Grinding and Flotation (Mining Tech., Sept. 1948, TP 2461)	A. Kenneth Schellinger and O. Cutler Shepard

Concentration - Electrostatic Separation

TITLE	AUTHOR
Notes on Drying for Electrostatic Separation of Particles (Mining Tech., Nov. 1947, TP 2257, with discussion)	Foster Fraas
The Electrostatic Separation of Several Industrial Minerals (Mining Tech., July 1948, TP 2408, with discussion)	Foster Fraas and Oliver C. Ralston

Concentration - Sink-float Separation

TITLE	AUTHOR
Comparison of Galena and Ferrosilicon in Heavy-media Separation (Mining Tech., May 1947, TP 2181)	E. H. Crabtree, Jr.
A New Separating Vessel for Sink-float Concentration (Mining Tech., May 1947, TP 2182, with discussion)	E. C. Bitzer
A Suggested Approach to the Analysis of Mineral Suspensions by High-frequency Electrical Measurements (Mining Tech., Sept. 1948, TP 2462)	John D. Morgan, Jr. and Sylvain J. Pirson

Concentration - Calculations

TITLE	AUTHOR
Metallurgical Efficiency-a Yardstick in Lead-zinc Flotation Metallurgy (Mining Tech., March 1947, TP 2141, with discussion)	R. A. Pallanch
A Short-cut Method of Metallurgical Accounting (Mining Tech., July 1947, TP 2193)	E. H. Crabtree, Jr. and Neil S. Parker

Comminution

TITLE	AUTHOR
Crushing Practice at the Braden Copper Company (Mining Tech., March 1947, TP 2150)	E. R. Johnson
Rod Milling-Plant and Laboratory Data (Mining Tech., July 1947, TP 2175, with discussion)	J. F. Myers, S. D. Michaelson and F. C. Bond
Standard Grindability Tests Tabulated (Mining Tech., July 1947, TP 2180)	Fred C. Bond
Wear Tests on Grinding Balls (Metals Tech, April 1948 and Mining Tech., May 1948, TP 2319)	T. E. Norman and C. M. Loeb, Jr.
Wet Grinding of Ferrosilicon for Heavy Media (Mining Tech., March 1948, TP 2350)	E. H. Crabtree and T. C. King

INDEX

TITLE	AUTHOR
Index