Table of Contents
- 1 Which three raw materials are needed for the contact process?
- 2 What are the steps in contact process?
- 3 What are the starting materials in the contact process?
- 4 What is contact process used for?
- 5 Why is vanadium pentoxide used in the contact process?
- 6 What are the basic raw material for manufacture of sulphuric acid?
- 7 What kind of acid can a contact process produce?
- 8 What are the process contact surfaces in bioprocessing?
Which three raw materials are needed for the contact process?
Sulfuric acid – the contact process
- sulfur.
- air.
- water.
What are the steps in contact process?
The Contact Process: Step 1: Make sulfur dioxide….
- Step 1: Making sulfur dioxide.
- Step 2: Converting sulfur dioxide into sulfur trioxide.
- Step 3: Converting sulfur trioxide into sulfuric acid.
Which metal is used in contact process?
The contact process is a present method of producing concentrated sulphuric acid which is required for industrial use. The catalyst used during the process is vanadium oxide.
What are the raw materials used for the manufacture of h2so4 by the contact process?
Sulfuric acid is manufactured from the raw materials sulfur, air and water and involves the production of sulfur trioxide in the Contact Process.
What are the starting materials in the contact process?
Sulfur is a common starting material for the Contact process.
What is contact process used for?
The contact process is a modern method used by industries for manufacturing concentrated sulfuric acid. During this process, sulfur dioxide and oxygen are passed over a hot catalyst (V2O5). They unite to form sulfur trioxide, which combines with water to produce sulfuric acid.
What substance is produced by contact process?
sulfuric acid
The contact process is a modern method used by industries for manufacturing concentrated sulfuric acid. During this process, sulfur dioxide and oxygen are passed over a hot catalyst (V2O5). They unite to form sulfur trioxide, which combines with water to produce sulfuric acid.
Why quartz is used in contact process?
Quartz rock is used in the converter to prevent the smaller catalyts particles from falling through the support grids and as a hold-down layer on top of the catalyst to prevent movement of the bed. The quartz must be guaranteed to be non-spalling up to 650°C (1202°F)
Why is vanadium pentoxide used in the contact process?
Vanadium pentoxide is used in different, industrial processes as catalyst: In the contact process it serves for the oxidation of SO2 to SO3 with oxygen at 440°C. Besides it is used in the oxidation of ethanol to ethanale and in the production of phthalic anydride, polyamide, oxalic acid and further products.
What are the basic raw material for manufacture of sulphuric acid?
Abstract – The raw material for sulphuric acid manufacture is clean SO2 gas. It comes from (i) burning molten by-product sulphur; (ii) roasting or smelting metal sulphide concentrates, and (iii) decomposing contaminated organic chemical process sulphuric acid catalyst.
Which is produced by contact process?
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 are the raw materials used in the production of Sulphuric acid?
What kind of acid can a contact process produce?
Lead is a material awkward to use in construction, and the process cannot deliver acid more concentrated than about 78 percent without special… The other type of contact-process plant produces sulfur dioxide from low-grade, sulfur-bearing materials, such as pyrite.
What are the process contact surfaces in bioprocessing?
Process contact surfaces: Surfaces of components that by design are not directly exposed to product and do not require cleaning of product residue (e.g., clean steam, compendial water, once-through CIP), but may require sanitization or sterilization for bioburden control.
What happens in the first stage of the contact process?
In the first stage of the contact process, sulfur is burned in air to make sulfur dioxide: This is not a reversible reaction – (l) means liquid and (g) means gas. Sulfur dioxide should not be released into the atmosphere as it contributes to acid rain. In the second stage, sulfur dioxide reacts with more oxygen to make sulfur trioxide:
How is sulfur used in the contact 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. Contact-process plants are of two types. The simpler type, the sulfur-burning contact plants, use sulfur as the raw material.