answersLogoWhite

0

Metals are extracted from their ores which contain several impurities, the lighter impurities are removed by slag formation.

User Avatar

Wiki User

15y ago

What else can I help you with?

Continue Learning about Chemistry

What is slag in mining?

Slag in mining refers to the waste or byproduct that is produced during the extraction or processing of metal ores. It typically consists of a mixture of impurities, such as gangue minerals and unwanted components, that are separated from the desired metal or mineral. Slag is often deposited in tailings ponds or waste piles.


What is the difference between dross and slag?

Dross is the waste or impurities that float to the surface of molten metal, while slag is the byproduct of processing metal ores. Both dross and slag are forms of waste material produced during metal production processes.


Which substance is formed when impurities in the ore react with calcium oxide?

When impurities in the ore react with calcium oxide, they form slag. Slag is a byproduct of the smelting process and is used to separate impurities from the metal being produced.


What is added to the flux and form a slag?

Common additives to the flux, such as limestone or silica, react with impurities in the metal to form a slag. This slag helps to remove impurities from the metal during the refining process and is then removed from the surface of the molten metal.


Why is limestone used in non ferrous metals?

Limestone is used in non-ferrous metal production as a flux, which helps remove impurities such as sulfur and phosphorous from the metal during the smelting process. It also helps to control the viscosity of the slag, improving the overall efficiency of the metal extraction process. Additionally, limestone can help in the reduction of energy consumption and enhance the quality of the final metal product.

Related Questions

What is slag in mining?

Slag in mining refers to the waste or byproduct that is produced during the extraction or processing of metal ores. It typically consists of a mixture of impurities, such as gangue minerals and unwanted components, that are separated from the desired metal or mineral. Slag is often deposited in tailings ponds or waste piles.


What are the solid wastes of metal extraction called?

The solid wastes of metal extraction are often referred to as slag. This waste material is produced during the smelting and refining processes of metals and contains impurities and non-metallic compounds. Slag can be recycled or reused in various ways to minimize its environmental impact.


What is slag a rock?

A slag rock is an artificial rock. Slag is made as a byproduct of industrial processes such as metal mining. It is also produced by iron smelting such as in steel mills.


What is the difference between dross and slag?

Dross is the waste or impurities that float to the surface of molten metal, while slag is the byproduct of processing metal ores. Both dross and slag are forms of waste material produced during metal production processes.


Which substance is formed when impurities in the ore react with calcium oxide?

When impurities in the ore react with calcium oxide, they form slag. Slag is a byproduct of the smelting process and is used to separate impurities from the metal being produced.


What was the name of the metal produced by early metalsmiths?

The metal produced by early metalsmiths was likely copper, due to its malleability and ease of extraction from ores.


Which material formed during smelting is denser molted metal or slag?

The molten metal is the denser material, the slag floats on top of it and can be "scooped" off during the smelting process.


What is slag from welding?

Slag is the residue left on a weld bead from the flux. It shields the hot metal from atmospheric contaminants that may weaken the weld joint. Slag can also be globules of molten metal that are expelled from the joint and then re solidify on the metal surface. in either case, they are usually chipped away with a slag hammer.


What is added to the flux and form a slag?

Common additives to the flux, such as limestone or silica, react with impurities in the metal to form a slag. This slag helps to remove impurities from the metal during the refining process and is then removed from the surface of the molten metal.


How do you remove slag after smelting metal?

slag of induction furnace having 49% of feo . is it higher side


Is coke used to oxidise slag?

No, coke is not typically used to oxidize slag. Coke is often used as a reducing agent in metallurgical processes to remove oxygen from metal oxides, not to oxidize material like slag. Slag is usually formed as a byproduct of the smelting process when impurities are removed from metal ores.


What is slag optimization?

Slag purifies and removes unwanted materials from metal. Optimization is the application of foams and other agents to enable a higher quality and stabilized slag to produce a higher quality metal product. Efforts are made to achieve an optimum slag viscosity by the fixation of basicity and temperature.