The aim of instruction in a metallurgical laboratory is to make real the principles on which metallurgical processes and operations are based, and to foster
Summarizing some of the principal points brought out in this laboratory Jigging of Minerals’ investigation, I believe the following may safely be accepted: The pulsion-reaction
Commercial copper SX reagents do not exhibit perfect selectivity. From typical acidic feed solutions, the most significant co-extracted impurity is ferric iron. The copper/iron extraction
In Table I are cited data on the vapor pressures of the common metallic chlorides. The temperatures given are in the region of magmatic temperatures,
The jig, in one form or another, continues to hold a leading place among the machines designed to separate two or more minerals of different
Understanding the feed to processing operations is key to maximizing cash flow (economic value). Unfortunately the subject of economic geology is not covered within most
The current meaning of the term, copper overpoled in the reverberatory furnace, is that poling has been carried beyond the tough-pitch stage, with the result
Concentration of grains from 10 to 30 mm. is effected by hydraulic jigs with two compartments, and in the case of the smaller grains down
When making comparisons of the efficiencies of different grinding and crushing machines it is desirable to be able to estimate the work actually done in
This paper is intended, in the light of recent investigations, to call attention to some of the essential features of good practice in sampling and