Who determines if it is an ore deposit?

An ore deposit must be profitable to mine. If it is no longer profitable, it is no longer an ore deposit. Geologists find ore deposits by testing the chemistry of the rock and soil. They can also determine the size of the deposit.

What makes an ore deposit valuable?

The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron. Copper ore is mined for a variety of industrial uses. Copper, an excellent conductor of electricity, is used as electrical wire.

How do I know if my deposit is ore?

Geologists find ore deposits by testing the chemistry of the rock and soil. They can also determine the size of the deposit.

What are the characteristics of an economically valuable ore deposit?

They supplied useful or valuable material to human life long before they became objects of commercial exploitation. Most ore deposits contain one or more minerals in which the elements or substance of interest have been concentrated sufficiently above the average crustal abundance to have potential economic value.

Why are ores concentrated 8?

Hydraulic Washing: This method concentrates the ore by passing it through an upward stream of water whereby all the lighter particles of gangue are separated from the heavier metal ore. This is a type of gravity separation.

Which ores are concentrated by leaching?

Among galena (PbS), copper pyrites (CuFeS2), cinnabar (HgS) and argentite (Ag2S) argentite being silver ore is concentrated by chemical leaching method.

Which type of ore is concentrated by froth flotation?

sulphide ores

Which ore is concentrated by hydraulic wash?

Hydraulic washing is used for ores that have tin or lead, as they are heavier than the gangue.

What is the difference between Liquation and hydraulic washing?

hydraulic washing is the process of washing ore with steam water to remove the lighter impurities whereas liquation is a method of refining in metals with low melting point such as tin and lead are extracted .

How is Galena ore is concentrated?

Sol: Gold and silver ores are concentrated by leaching. Among galena, copper pyrites, cinnabar and Argentine, Argentite being silver ore is concentrated by chemical leaching method.

What is ore beneficiation?

Beneficiation is the process where ore is reduced in size and gange separated from the ore. Since all iron ore deposits have unique mineralogy, the beneficiation process is specific to each deposit.

What is ore enrichment?

Before extracting the metal from an ore, it is necessary to remove the impurities present in it. The process of removal of gangue particles from ore to increase the percentage of metal in ore is called enrichment of ore. …

What is ore dressing or processing of the ore?

Ore dressing is a process of mechanically separating the grains of ore minerals from the gangue minerals, to produce a concentrate (enriched portion) containing most of the ore minerals and a tailing (discard) containing the bulk of the gangue minerals.

For what reason mineral beneficiation is usually carried out at mine site?

Beneficiation is simply a procedure for removing impurities or associated minerals that are not needed thereby improving the quality of the bentonite clay (Olugbenga et al., 2013).

What is grade in mineral processing?

Grade: The percentage of a metal in a product. Grain: A discrete chunk of pure mineral. Gravity methods: In mineral processing, refers to a separation process whereby gravity is utilized to effect separation between particles of greatly different densities. Grinding: Size reduction primarily by attrition.

What are the ore beneficiary techniques?

These processes are gravity separation, flotation, and magnetic separation. Gravity separation uses centrifugal forces and specific gravity of ores and gangue to separate them.

What is pellet iron ore?

Iron ore pellets are spheres of typically 6–16 mm (0.24–0.63 in) to be used as raw material for blast furnaces. The raw material is rolled into a ball, then fired in a kiln or in travelling grate to sinter the particles into a hard sphere.

How is iron ore processed into pellets?

Iron Ore Pellets are formed from beneficiated or run of mine iron fines. Both straight grates and grate kilns dry the pellets out in a drying section, then bring the pellets up to a temperature of about 800-900 °C in a preheat zone, then finish the induration process at roughly 1200-1350 °C.

How do you process iron ore?

Iron ore is mixed with coke (from super-heated metallurgical coal) in a blast furnace. Air that has been heated to around 1,200 degrees Celsius is injected into the furnace, creating a flame temperature of 2,000 degrees. This converts the iron ore to molten pig iron and slag.