Unit Operations
Unit operations and unit processes http://www.mine-engineer.com/ • At the end of this unit you should be able to: a. List the various reasons for undertaking size reduction and enlargement in the chemical industry b. Describe the operation principles of some size reduction equipment and size enlargement equipment c. Explain how industrial materials can be separated on the basis of their magnetic, electrostatic, hydrophobic and volatility differences respectively d. Discuss various organic unit processes including polymerization, alkylation, and hydrolysis and their application in the production of organic chemicals
Unit operations involve physical transformations while unit processes consist of chemical conversions. In this unit, we want to study the purposes and operating principles of common unit operations and unit processes, The Learning Activity includes: Size reduction and size enlargement, magnetic and electrostatic separation, froth flotation, fractional distillation, other unit operations, polymerization, alkylation, hydrolysis and other unit processes.
Unit Operations
• Deals with size reduction, size enlargement and separation of mixtures- look/understand the operation principles of equipment in these unit operations and their application in the chemical industry.
Size Reduction
Size reduction refers to all the ways in which particles are cut or broken into smaller pieces. The objective is to produce small particles from big ones for any of the following reasons: 1. To reduce chunks of raw materials to workable sizes e.g. crushing of mineral ore. 2. To increase the reactivity of materials by increasing the surface area. 3. To release valuable substances so that they can be separated from unwanted material. 4. To reduce the bulk of fibrous materials for easier handling. 5. To meet standard specifications on size and shape. 6. To increase particles in number for the purpose of selling. 7. To improve blending efficiency of formulations,
Unit operations involve physical transformations while unit processes consist of chemical conversions. In this unit, we want to study the purposes and operating principles of common unit operations and unit processes, The Learning Activity includes: Size reduction and size enlargement, magnetic and electrostatic separation, froth flotation, fractional distillation, other unit operations, polymerization, alkylation, hydrolysis and other unit processes.
Unit Operations
• Deals with size reduction, size enlargement and separation of mixtures- look/understand the operation principles of equipment in these unit operations and their application in the chemical industry.
Size Reduction
Size reduction refers to all the ways in which particles are cut or broken into smaller pieces. The objective is to produce small particles from big ones for any of the following reasons: 1. To reduce chunks of raw materials to workable sizes e.g. crushing of mineral ore. 2. To increase the reactivity of materials by increasing the surface area. 3. To release valuable substances so that they can be separated from unwanted material. 4. To reduce the bulk of fibrous materials for easier handling. 5. To meet standard specifications on size and shape. 6. To increase particles in number for the purpose of selling. 7. To improve blending efficiency of formulations,