Froth flotation of gold is a widely used beneficiation method for treating rock gold ore in gold concentrating plant, which is often used to treat gold ore containing sulfide minerals with high floatability. The froth flotation process can concentrate the gold in sulfide minerals to the maximum extent, and the tailings can be directly discarded.
It was describe by the use of 600 series of flotation reagents which were developed primarily for the purpose of depressing carbonaceous and siliceous slimes in the flotation of gold ores. Carbonaceous material not only greatly increases the bulk and moisture content of a flotation concentrate, but its presence makes cyanidation of the concentrate difficult or impossible owing to reprecipitation of the gold during treatment.
Ore Beneficiation Process. As one of the leaders of mineral processing industry in the world, Xinhai firstly gained Class A design qualification, and possessed mine design institute and beneficiation research institute to provide technical support for mineral processing service, aiming at customizing professional mineral processing process for each mine and help customers to maximize mineral ...
Extracting Lithium from its Ore. The problems of spodumene mineral dressing depend on the amount of ore deposit, weathering and presence of associated gangue minerals. Weathered mineral surfaces must be thoroughly cleaned for selective flotation. Slimes interfere with selective flotation and also consume expensive reagents.
This flotation step produces a molybdenum rougher concentrate containing 1% to 5% MoS2. In addition to the reagents previously mentioned, sodium cyanide, fuel oil, and oronite are used. The flotation tailings from this circuit are the final copper concentrates which go to thickening and filtering as shown.
Flotation is widely used in gold Processing. In China, 80% rock gold is Processed by flotation. Flotation Gold Flotation Production Line
The discharge from the tube mill is first passed through a 4 mesh screen to separate out coarse material, which is laundered direct to the classifier. The remainder of the pulp, diluted to give a W/S ratio of 1/1, passes to a Denver Sub A Flotation Cell, from which 60% of the gold and silver in the feed is removed as a concentrate.
There are a number of cells able to be used for the flotation of minerals. these include flotation columns and mechanical flotation cells. The flotation columns are used for finer minerals and they typically have a higher grade and lower recovery of minerals than mechanical flotation cells. The cells in use at the moment can exceed 300 m 3. This is done as they are cheaper per unit volume than smaller cells, but they are not able to be controlled as easily as smaller cells.
June 10, 2020
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