What is the contact process GCSE?

Sulfuric acid – the contact process The contact process, for making sulfuric acid, is a process which involves a reversible reaction . The raw materials needed to make sulfuric acid are: sulfur. air.

What is the contact process in chemistry?

contact process, modern industrial method of producing sulfuric acid; it has largely replaced the chamber, or lead-chamber, process. Sulfur dioxide and oxygen, passed over a hot catalyst, unite to form sulfur trioxide, which in turn combines with water to make sulfuric acid.

What is the contact process BBC Bitesize?

The contact process, for making sulfuric acid, is a process which involves a reversible reaction . The raw materials needed to make sulfuric acid are: sulfur. air.

Why is it called contact process?

The Hot gases( SO2 ) evolved from burning of sulfur ore comes in contact with catalyst bed, So the name of this process is called contact process.

Why it is called contact process?

The term “contact process” stems from the fact that the usually solid catalyst is also called a “contact” in a heterogeneous cataly- sis. As the demand for sulfuric acid could be met by the lead chamber process in the middle of the 19th century, there was initially no incentive to develop the process further.

Why sulphuric acid is used in contact process?

Sulphuric acid has the chemical formula H2SO4. The acid is a colourless liquid. It is soluble in water and generally releases heat on contact. Further, the acid is corrosive in nature to metals and tissues.

Which catalyst is used in contact process?

vanadium(V) oxide
Platinum was originally used as the catalyst for this reaction; however, as it is susceptible to reacting with arsenic impurities in the sulfur feedstock, vanadium(V) oxide (V2O5) is now preferred.

Why is the contact process important?

The contact process is one of the most widely used methods to manufacture sulphuric acid. Peregrine Phillips, a British merchant, invented the contact process and patented it in 1831. It is not only the economical process to manufacture sulphuric acid, but also produces sulphur trioxide and oleum.

Why was the contact process invented?

The main purpose of the Contact Process is to make sulfur dioxide. First, you have to make sulfur dioxide, you then convert this into sulfur trioxide. The sulfur trioxide is then converted to fuming sulfuric acid. Sulfuric acid is a very important industrial chemical.

Why is oleum used in the contact process?

Sulfuric acid and oleum are produced industrially by contact process from sulfur containing gases by burning sulfur, acid regeneration, or metallurgical operations. The process consists of the catalytic oxidation of sulfur dioxide (SO2) to SO3, and the hydration of SO3 to H2SO4 by absorption in concentrated acid.