Difference Between Sponge Iron and Pig Iron

What is the Difference Between Sponge Iron and Pig Iron? Sponge iron is a form of iron that we can produce directly from iron ore through a reduction process whereas pig iron is a form of iron that we can produce by melting iron ore along with charcoal and limestone under very high pressure.

1. Why is pig iron not useful?
2. Why it is called sponge iron?
3. What is the use of sponge iron?
4. What is pig iron used for mainly?
5. Which is the purest form of iron?
6. Why is cast iron not weldable?
7. Who is the largest producer of sponge iron?
8. How many types of iron are there?
9. What is scrap iron?
10. What is the chemical formula for reduced iron?
11. What are the three forms of iron?

Why is pig iron not useful?

Pig iron has a very high carbon content, typically 3.8–4.7%, along with silica and other constituents of dross, which makes it very brittle and not useful directly as a material except for limited applications.

Why it is called sponge iron?

In this natural reduction reaction, as the iron ore is heated with carbon, it results in a pop-marked surface, hence the name “sponge iron.” The commercial process is a solid solution reduction, also called direct-reduced iron (DRI).

What is the use of sponge iron?

Introduction : Sponge iron is a metallic product produced through direct reduction of iron ore in the solid state. It is a substitute for scrap and is mainly used in making steel through the secondary route. The process of sponge iron making aims to remove the oxygen from iron ore.

What is pig iron used for mainly?

Pig iron is a solid form of hot metal, obtained from iron ore or scrap recycling, and it is processed with blast furnace or electric arc furnace. Pig iron is used as a raw material for iron steel making and most of this material was imported.

Which is the purest form of iron?

Wrought iron is the purest form of iron. It contains 0.12 to 0.25% carbon and is thus the purest form of iron.

Why is cast iron not weldable?

Cast iron is difficult, but not impossible, to weld. ... Cast iron typically has a carbon content of 2% - 4%, roughly 10 times as much as most steels. The high carbon content causes the carbon to form flakes of graphite. This graphite gives gray cast iron its characteristic appearance when fractured.

Who is the largest producer of sponge iron?

(iii) Sponge Iron: India, world's largest producer of sponge iron (2018), has a host of coal based units located in the mineral-rich states of the country. Over the years, the coal based route has emerged as a key contributor and accounted for 79% of total sponge iron production in the country.

How many types of iron are there?

Types of iron. There are two major types of iron produced: wrought iron and cast iron. Within those, cast iron includes its own family of metals.

What is scrap iron?

Scrap Iron may refer to: Scrap, the recycling of metals including iron. Scrap-Iron, a fictional character in the G.I. ... Scrap Iron (Transformers), a fictional character from Transformers: Cybertron. Phil Garner, a baseball player nicknamed Scrap Iron.

What is the chemical formula for reduced iron?

CID 445124 | Fe2 - PubChem.

What are the three forms of iron?

Iron as an element is not in common use. However, the term iron is used for different materials which contain a high percentage of iron in elemental form. These materials are categorized as (i) pure iron, (ii) wrought iron, (iii) cast iron, (iv) pig iron, and (v) direct reduced iron.