How To Control Copper-molybdenum Ore Flotation

Hydrophobicity differences between valuable minerals and waste gangue are increased through the use of surfactants and wetting agents

. The selective separation of the minerals makes processing complex (that is, mixed) ores economically feasible. The flotation process is used for the separation of a large range of sulfides, carbonates and oxides prior to further refinement. Phosphates and coal are also processed upgraded by flotation technology.

Principle of operation

comminution (that is, crushing and grinding), which is used to increase the surface area of the ore for subsequent processing and break the rocks into the desired mineral and gangue in a process known as liberation, which then has to be separated from the desired mineral. The ore is ground into a fine powder and mixed with water to form a slurry. The desired mineral is rendered hydrophobic by the addition of a surfactant or collector chemical. The particular chemical depends on which mineral is being refined. As an example, pine oil is used to extract copper. This slurry (more properly called the pulp) of hydrophobic mineral-bearing ore and hydrophilic gangue is then introduced to a water bath which is aerated, creating bubbles. The hydrophobic grains of mineral-bearing ore escape the water by attaching to the air bubbles, which rise to the surface, forming a foam or a scum (more properly called a froth). The froth is removed and the concentrated mineral is further refined.

Associated with copper-based copper-molybdenum ore molybdenum porphyry copper depositexist in nature, produced in the porphyry copper deposits in the Copper accounts for about two-thirds of the world's copper reserves.

China is a large copper mine in Jiangxi Dexing porphyry copper deposit. Porphyry copper deposit is characterized by: low-grade ore, often accompanied by birth molybdenum, generally copper 0.5% ~ 1%, molybdenum 0.01% ~ 0.03%, embedded in fine particle size cloth, mostly for Disseminated ; reserves, large, large-scale processing plant. Porphyry copper deposit in the copper minerals, mostly chalcopyrite, followed by chalcocite and other copper minerals less. Molybdenum minerals are generally molybdenite. Porphyry copper deposit of copper is not only an important resource, but also an important source of molybdenum, often occurrence with rhenium, gold, silver and other rare expensive elements. A feature of porphyry copper flotation processMost of coarse concentrate regrinding stage of re-election of sorting process: namely, coarse grinding (50% ~ 65% -0. 074mm) under the conditions of Cu-Mo mixed roughing obtained coarse concentrate regrinding (90% ~ 100% -0. 074mm), further selection.With its high quality products such as Classifier, Sand maker, Cement equipment, Rotary kiln, Hammer crusher, Henan Hongxing mining machinery Co.Ltd has ascended in the front rank of the world in the exporting of mining equipments.by: nicole

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