Criteria of Election & Procedure Selection

Numerous data must be taken into consideration in the selection of a procedure. These informations concern the bed, the mineral, the results of the preliminary tests, to the local conditions, etc.

Among the main factors which intervene, we can mention.

The Bed
The adapted tonneage of the mineral contained in gold gives the classification an indication about the amount of gold to be recuperated and orients the project towards a complete classic procedure or a low expense procedure like the cyanidtation in pile (large amount).

The nature of the mining exploitation (underground mines or in the open air) is also an information which should be taken into consideration, as well as the presence of one or various phases of minerals (oxidized superficial area, cemented area, non altered area).

The Mineralogy
Composition and texture

The recoginition of the mineralogy of the mineral allows to foresee if the studied mineral will have a simple or complex behavior.

The identification of the potential difficulties allows to orient the testing program in consequences.

Nature of Gangue
The presence of some elements (carbon, clay, etc.) the granulometry of the fragments, etc. Are useful information which orient the election towards some procedures of the treatment of pretreatments.