In a leaching process, having obtained the copper in solution, the choice of the precipitation method is influenced by the following factors: Availability of precipitant.
At otherwise constant conditions, the prediction of R and K trends with increasing frother concentration is difficult and not uniform in nature. This is due,
The main opening is usually a permanent one that will be utilized throughout the life of the mine. It should, therefore, be so situated relative
During the last few years we have been doing considerable experimenting on methods of precipitating copper. The first patent on precipitating from sulphate solutions by
The solvent we would use; how we would precipitate the copper from the solution, and what we would do with the iron in the electrolyte.
At the beginning of our investigation we seriously considered what I called the “brutal method” of leaching, namely, the manufacture of sulphuric acid, the solution
In recent years the metallurgical field of the copper industry has expanded greatly, the copper ores have become lean and diverse in character, and we
The advance made in recent times in this branch of metallurgy is indicated by the attention the subject is receiving from important American Copper producing
It is a common observation that the improvements introduced in practice since the first announcement of the cyanide process have been almost entirely mechanical. Although
Estimates of the tonnage and average grade of ore deposits (ore-reserve estimates) are made for various purposes. They may be made by examining engineers as