ICSE Class 10 Chemistry Revision Notes Chapter 7 – Metallurgy

The process of extracting metals in their purest form is known as metallurgy, and when all these mineral compounds, such as soil, limestone, and rocks, are combined, minerals are the result. Metals are extracted from minerals at a very low cost and with very little effort. These minerals are termed as ores. To remove the gangue, also referred to as impurities, flux is said to be added to the charge in the furnace. Metals are thus purified, and alloys are created as a result of metallurgy.

Understanding the fundamentals of metallurgy is essential. So, below are a few of the most significant ones.

1. The ores are crushed and ground in a ball mill or crusher as the first step in the metallurgy process, turning them into fine powder. Pulverization is the term for the entire process of crushing and grinding to create this fine powder.
2. The concentration of ores and minerals, also known as ore dressing, occurs in the second stage, which is where impurities from the ore are removed. This concentration of ores is accomplished by adhering to these crucial procedures.

The hydrolytic method involves pouring ore over a corrugated table with grooves that are vibrating and sloping. The denser ore particles settle in the grooves as a result of water flowing from the surface, which also helps to wash away impurities. This concept can be understood better with the help of the ICSE Class 10 Chemistry Revision Notes Chapter 7.

Crushed ore is first placed on a conveyor belt, which is then rotated around two wheels for magnetic separation. Because this one wheel is magnetic, magnetic particles are drawn to it; because the other wheel is not magnetic, other particles are forced to separate from the magnetic one and disperse. This concept can be challenging to understand, but students can access the ICSE Class 10 Chemistry Revision Notes Chapter 7 on the Extramarks app.

The crushed ore is placed on a sizable tank that contains both water and oil in a process known as foam floatation. Because there is oil present, when a current of compressed air is passed through, the ore gets wet and is separated from the impurities in it in the form of froth. Because ore is lighter than other materials, it settles to the surface, leaving impurities behind. Everything about this concept can be understood with the help of the ICSE Class 10 Chemistry Revision Notes Chapter 7.

Roasting and calcination: Roasting is the process of heating concentrated ore in the presence of oxygen, and it is used with sulphide ores. Calcination is the process of heating carbonate or hydrated oxide-containing ores without the presence of air to cause the melting of the ores.

All of this can be studied and understood with the help of ICSE Class 10 Chemistry Revision Notes Chapter 7.

Revision Notes for ICSE Class 10 Chemistry Chapter 7 – Free PDF Download

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Revision Notes for ICSE Class 10 Chemistry Chapter 7

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ICSE Class 10 Chemistry Revision Notes

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Revision Notes

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