2011年10月31日星期一

Iron Ore Benefication Flotation Supplier

Hematite Iron Ore Beneficiation Plant

Hematite Iron ore crusher and Hematite iron ore grinding machine is the first step in Hematite iron ore beneficiation plant. Ore crushed through the thick, the block is no more than 1m, and then through the medium and fine crushing and screening ore particle size less than 12mm into the final product sent to the grinding grooves.

Followed by the sorting techniques: magnetite beneficiation. As the ore magnetic and strong, good selection good grinding, magnetic separation plant are used stage grinding and multi-stage grinding process, the coarse-grained disseminated magnetite by the former (a mill Mine), fine-grained, micro-fine disseminated magnetite with the latter (Sec or three grinding). beneficiation technology for magnetic roasting, wet high intensity magnetic separation, the weak magnetic processes such as flotation and re-election , Equipment and new varieties of pharmaceutical research continue to improve, so that the concentrate grade, metal recovery continues to increase.
These latest years,the beneficiation process of hematite has developed very well. Especially use the high intensity magnetic separation which is can improve the grade of iron ore concentrate very well,and the recovery of Iron ore concentrate is satisfying.

Hematite Iron ore beneficiation process flow

The haematite's another name is red iron ore,and its chemical structural formula is Fe203. it's a weak magnetic iron ore and the floatability is better than magnetite. And it is a main material of ironmaking. The main beneficiation process includes:gravity separation,floatation,strong magnetic beneficiation or mix several beneficiation process,and another process is magnetization roasting and then weak magnetic separation. The early haematite beneficiation mostly used the gravity separation process,and the main machines are:jigger,centrifugal separator,spiral chute,spiral washing machine,shaking table etc. Because some other beneficiations's production capacity was small,the grade after processing was low,recovery ratio is low and then was dumped as time goes on. Later as the haematite beneficiation developing,the floatation process ans high intensity magnetization process. It mainly use oxidized paraffinum sodium salt as the collector for floatation and electromagnetic strong magnetic separator as beneficiation equipment for strong magnetic separator. But the others beneficiation technology target were all not good enough. These latest years,the beneficiation process of haematite has developed very well. Especially use the high intensity magnetic separation which is can improve the grade of iron ore concentrate very well,and the recovery of Iron ore concentrate is satisfying. hematite ore beneficiation

Roasting: Where gold is trapped in sulfides such as pyrite, roasting of the concentrate is required to convert the sulfides to oxides (called calcine), with sulfur in the sulfides liberated as sulfur dioxide. Oxidation is necessary for the subsequent gold leaching and recovery processes to operate effectively.

Biological Oxidation: This is an alternative method for the oxidation of sulfides. Recent advances in technology have resulted in the development of a biological process for the oxidation of sulfide concentrates. In this process bacteria are used to oxidise sulfide concentrates.

Cyanidation: Cyanide is added to the process slurry to promote the dissolution and complexing of the gold. Gold enters solution as a gold-cyanide complex ion.

Carbon-in-pulp (CIP): CIP involves the removal of complex gold ions from solution by adsorption onto activated carbon. Slurry that has undergone cyanidation is passed through a cascade of agitation tanks. As the slurry moves down the cascade, gold is adsorbed onto granular activated carbon that is extracted and pumped to the next tank. The result is a counter-current flow (as Figure 3), where the loading of gold on carbon increases in the opposite direction to slurry flow. Loaded carbon is retrieved from the first tank in the series.

Gold Beneficiation Methods

As discussed above, gold beneficiation operations include cyanidation, base-metal flotation, gravity concentration (for placer deposits), and amalgamation (which is generally no longer used). Base-metal flotation, gravity concentration, and amalgamation are described only briefly below. Because most lode ore gold mines use some form of cyanidation, these techniques are the main focus of this profile. In general, there are two basic types of cyanidation operations, tank leaching and heap leaching. In addition, tank leaching involves one of two distinct types of operations, Carbon-in-Pulp or Carbon-in-Leach. In Carbon-in-Pulp operations, the ore pulp is leached in an initial set of tanks with carbon adsorption occurring in a second set of tanks. In Carbon-in-Leach operations, leaching and carbon recovery of the gold values occur simultaneously in the same set of tanks.gold beneficiation flotation

Iron Ore Beneficiation and Pelletisation Plant

Caiman has the best of technology and experience for Iron Ore beneficiation in the form of gravity separation technology and the Magnetic separation process route. Several beneficiation plants have been upgraded with latest improved technological equipment and built in India by Caiman for upgradation of Iron ore, for use as Sinter grade fines as well as concentrates used for pelletisation plant.

Iron Ore Flotation

Mining and Construction machinery manufacturer can supply you related mirror iron ore ore crushing equipments such as mirror iron ore ore crusher or mirror iron flotation machine,such as mirror iron ore jaw crusher, mirror iron ore impact crusher, mirror iron ore cone crusher and so on. Besides, after crushing stage, Our mirror iron ore ore grinding mill or mirror iron ore mill are used widely in mirror iron ore flotation process in ore mining industry. In recent years, We have developed advanced ore crusher-mobile crusher which is applied greatly in ore crushing industry.Iron Ore Flotation plant

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