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Showing: 1 to 10 of 158 matches for "humphrey spiral"  Page   1   2   3   4   5   6   7   8   9  next
TITLE Removing Sulfur From Coal by a Combination of Gravity and Flotation Methods 
SUMMARY ... tests were made using samples from two impoundments to determine the quality of
coal recoverable by a com- bination of Humphrey’s spiral con- centration and ...
AUTHOR Browning, James S.
PUBLISHED 1982
TITLE Recovery of Ilmenite from Venezuelan Black Sand 
SUMMARY ... When magnetic concentration was applied to the concentrate, obtained as a product
from Humphrey spiral, a recovery of ilmenite more than 90% was obtained in ...
AUTHOR Staia, Mariana H.
PUBLISHED 1995
TITLE Possible Recovery Of Heavy Minerals From Phosphate Tailings 
SUMMARY ... A heavy mineral concen- trate was obtained with a Humphrey spiral and/or Wilfley
table, and mineral products were produced by electrostatic and magnetic ...
AUTHOR Lewis, Robert Moore
PUBLISHED 1978
TITLE Flotation Of Muscovite From Alabama Graphitic-Mica Schist Ore 
SUMMARY ... Preconcentration of the ground ore on a Humphrey's spiral was employed to reject
the heavy minerals and part of the quartz in a product virtually free of mica. ...
AUTHOR Adair, Ralph B.
PUBLISHED 1969
TITLE Beneficiation on the Range 
SUMMARY ... of concentrat,ion in- volve straight classification, abrasion milling followed by
classification, abrasion milling fol- lowed by Humphrey spiral concentration ...
AUTHOR Erck, L. J.
PUBLISHED 1950
TITLE Recovery Of Fine-Size Coal From Impounded Wastes 
SUMMARY ... wastes. Presented are the results of Humphrey's spiral and plant ... discarded. Batch
and continuous tests in the Humphrey's spiral gave high coal ...
AUTHOR Hanna, J. ; Kalathur, R.
PUBLISHED 1993
TITLE Mining Engineering REPORTER 
SUMMARY ... Loree Colliery of the Hudson Coal Co. is using a Humphrey spiral cleaning plant
to meet requirements of the state in the matter of stream pollution. ...
PUBLISHED 1950
TITLE How To Make Money On Minerals Reclaimed From Tailings 
SUMMARY ... impounded or piled on waste dumps. The Asheville Laboratory developed a
process using the Humphrey Spiral for recovery of mica at a ...
AUTHOR Redeker, Immo H.
PUBLISHED 1970
TITLE The Search for Profitability with Large Low Grade Alluvials 
SUMMARY ... walls. Some of the developInent of processing equipment needs mention. The Humphrey
spiral was one of the early concentrators. Adaptation ...
PUBLISHED 1996
TITLE Pelletizing Manganese Ore Fines At Icomi, Brazil 
SUMMARY ... The Humphrey spiral unit for the upgrading of the fino by removing part of the A1203
and SiO2 ... Fino 20 x 150 mesh Humphrey Spiral Circuit Feed Conc. - - ...
AUTHOR Dominguez, E. C.
PUBLISHED 1977
Showing: 1 to 10 of 158 matches for "humphrey spiral"  Page   1   2   3   4   5   6   7   8   9  next

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