Nearly all caustic soda is generated by the electrolysis of sodium chloride solution using one of three cell types: mercury, diaphragm and membrane cells. The electrolysis process produces 2.25 tonnes of 50% caustic soda with each tonne of chlorine.
The chloralkali process (also chlor-alkali and chlor alkali) is an industrial process for the electrolysis of sodium chloride solutions. It is the technology used to produce chlorine and sodium hydroxide (lye/caustic soda), which are commodity chemicals required by industry. 35 million tons of chlorine were prepared by this process in 1987. Industrial scale production began in 1892.
Loewig’s process. Loewig’s process for caustic soda preparation depends on the formation of sodium ferrate (Na 2 Fe 2 O 4), which is then decomposed with water. The soda liquors are mixed with ferric oxide, and the mass evaporated to dryness and calcined at a bright red heat, usually in a revolving furnace.
Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na + and hydroxide anions OH −. Sodium hydroxide is a highly caustic base and alkali that decomposes proteins at ordinary ambient temperatures and may cause severe chemical burns.It is highly soluble in water, and readily ...
Sodium hydroxide also known as caustic soda with chemical formula NaOH found in many forms caustic soda lye, flakes, granules and solid. Produced using three different process Mercury Cell, Diaphragm cell, Membrane Cell methods
Caustic soda is used mostly in the pulping and bleaching process of the paper and pulp industry. It is also used in de-inking of waste paper and water treatment. The major end-use industry application of caustic soda is in the production of alumina from bauxite. It is also utilized in the manufacturing of many chemicals.
Caustic soda (usually as NaOH) is produced as a liquid. These are produced by passing an electrical current through brine (common salt dissolved in water). This is called electrolysis, a process which has been known for over 120 years.
The increasing demand for paper & paperboards is also expected to increase the consumption of caustic soda, to extract aluminum from its ores, thereby augmenting the growth of the market. Energy-intensive production process and major environmental concerns are likely to hinder the market growth.
Starting a Caustic Soda Production Business – A Complete Guide. Industry Overview; Caustic soda production business falls under the inorganic chemical manufacturing industry and businesses in this industry produce inorganic chemicals including caustic soda, chlorine, potassium, sodium and other alkali compounds, chemical catalysts, inorganic acids, carbon black and other inorganic chemicals.
In the diaphragm cell process, the anode area is separated from the cathode area by a permeable diaphragm. The brine is introduced into the anode compartment and flows through the diaphragm into the cathode compartment. Diluted caustic brine then leaves the cell. If needed, the caustic soda can be concentrated to 50% and have any salt removed.