Edexcel 9B Contact Process and Industrial Sulfuric Acid Producti

Sulfuric acid is commonly prepared by _________ Process.

• Haber Process
• Contact Process
• Friedel-Crafts Process
• Bayer Process

There are mainly five steps involved in the manufacture of sulfuric acid by this process.

They are:

1. (What is the first process)

• 1. Production of sulfur dioxide from sulfur.

• 1. Purification of sulfur dioxide.

• 1. Catalytic oxidation of sulfur dioxide to sulfur trioxide.

• 1. Conversion of sulfur trioxide to oleum.

• 1. Dilution of oleum to sulfuric acid.

There are mainly five steps involved in the manufacture of sulfuric acid by this process.

They are:

1. (What is the second process)

• 1. Purification of sulfur dioxide.

• Reduction of sulfur trioxide to sulfur dioxide.
• Neutralization of sulfuric acid with water.
• Oxidation of sulfur to sulfur dioxide.

There are mainly five steps involved in the manufacture of sulfuric acid by this process. They are:

(What is the third step)

• 1. Production of sulfur dioxide from sulfur.

• 2. Purification of sulfur dioxide.

• 2. Catalytic oxidation of sulfur dioxide to sulfur trioxide.

• 1. Conversion of sulfur trioxide to oleum.

• 2. Dilution of oleum to sulfuric acid.

There are mainly five steps involved in the manufacture of sulfuric acid by this process. They are:

(What is the 4th step)

• 1. Production of sulfur dioxide from sulfur.

• 2. Purification of sulfur dioxide.

• 1. Catalytic oxidation of sulfur dioxide to sulfur trioxide.

• 2. Conversion of sulfur trioxide to oleum.

• 2. Dilution of oleum to sulfuric acid.

There are mainly five steps involved in the manufacture of sulfuric acid by this process. They are:

(What is the 4th step)

• 1. Production of sulfur dioxide from sulfur.

• 2. Purification of sulfur dioxide.

• 1. Catalytic oxidation of sulfur dioxide to sulfur trioxide.

• 2. Conversion of sulfur trioxide to oleum.

• 2. Dilution of oleum to sulfuric acid.

There are mainly five steps involved in the manufacture of sulfuric acid by this process. They are:

(What us step 5)

• 1. Production of sulfur dioxide from sulfur.

• 1. Purification of sulfur dioxide.

• 1. Catalytic oxidation of sulfur dioxide to sulfur trioxide.

• 1. Conversion of sulfur trioxide to oleum.

• 1. Dilution of oleum to sulfuric acid.

What is the purpose of the dusting tower in the Contact Process?

• To mix the gases before they enter the reactor.
• To cool down the gases after the reaction.
• To enhance the reaction rate of gases.
• To remove impurities from the gas mixture

Which of the following impurities are removed in the dusting tower?

• Organic solvents
• Heavy metals
• Dust and particulate matterDust particles, pyrites dust, and arsenic oxide

• Chemical residues

What mechanism is used in the dusting tower to remove solid particles?

• Electric charges attracting solid particles

• Centrifugal force and evaporation
• Magnetic separation and condensation
• Chemical reaction and absorption