580 likes | 1.94k Views
Source of Raw Material. Dr. Lek Wantha. Contents. Basic Concepts . 3-4 tons of materials to produce 1 ton of product Search new material sources Cheaper and better starting materials Recovery materials from waste 1. same process may use different materials
E N D
Source of Raw Material Dr. LekWantha
Basic Concepts • 3-4 tons of materials to produce 1 ton of product • Search new material sources • Cheaper and better starting materials • Recovery materials from waste • 1. same process may use different materials • 2.wide types of product from the same material • Benzene: starting material of man made robber, polystyrene, pesticide, and etc. • Methanol: used in various manufacture, e.g. Acetic and formic acid
Source of Starting Materials • Mining: • coal and tin • Petroleum and gas industries: • fuels, lubricants, synthetic fiber, synthetic rubber, plastic, detergents and a multitude of other products • Ferrous and non- ferrous metallurgy: • aromatic hydrocarbon, phenols, naphthalene, SO2 • Agricultural raw materials: • Vegetable and animals
Classification of Raw Materials 1 3 2 4
Rational and all- round utilization of material sources World’ production of key materials in 1985 (million ton) • Chemical fiber • Synthetic resin and plastic
Beneficiation of Raw Material Gravity method Electromagnetic separation
Electrostatic separation Hydraulic classifier http://nett21.gec.jp/jsim_data/waste/waste_2/html/doc_374.html Flotation
Sources • Kiattikomol, R. Chemical process industry. Faculty of Engineer, Burapha University. • http://chem-guide.blogspot.com/2010/04/different-process-involved-in.html