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Encyclopedia > Chloralkali process

The chloralkali process is a redox reaction, an electrolysis of an aqueous solution of sodium chloride: The most fundamental reactions in chemistry are the redox processes. ...


2 NaCl(aq) + 2 H2O(l) —→ 2 NaOH(aq) + Cl2(g) + 2 H+ + 2 e- 2 H+ + 2 e- —→ H2(g)


The process is primarily used to produce chlorine, but one of its byproducts is aqueous sodium hydroxide. General Name, Symbol, Number chlorine, Cl, 17 Chemical series halogens Group, Period, Block 17, 3, p Appearance yellowish green Atomic mass 35. ... Drinking water This article focuses on water as we experience it every day. ... Sodium hydroxide (NaOH), also known as caustic soda or lye, is a caustic metallic base used in industry (mostly as a strong chemical base) in the manufacture of paper, textiles, and detergents. ...


History

diaphragm cell, mercury cell, membrane cell...


External links

  • http://cavemanchemistry.com/ch120slides/tables/foil253.html

  Results from FactBites:
 
Process for making a polymer-modified electrode and process using same for chloralkali electrolysis - Patent 4976831 (2762 words)
A chloralkali process in which evolution of hydrogen occurs at the cathode and comprising the step of passing a current though an electrolytic cell containing an aqueous solution of an alkali metal chloride, in which the cathode is a polymer modified electrode as claimed in claim 4.
A chloralkali process in which evolution of hydrogen occurs at the cathode and comprising the step of passing a current through an electrolytic cell containing an aqueous solution of an alkali metal chloride, in which the cathode is a polymer modified electrode as claimed in claim 2.
A chloralkali process in which evolution of hydrogen occurs at the cathode and comprising the step of passing a current through an electrolytic cell containing an aqueous solution of an alkali metal chloride, in which the cathode is a polymer modified electrode as claimed in claim 8.
Removal of Mercury from Chemical Wastewater by Microoganisms in Technical Scale (5107 words)
We have previously shown that laboratory model reactors are capable of removing 90-97% of mercury from a chloralkali factory wastewater and that the mercury and salt concentations commonly encountered in such wastewaters are not inhibitory to microbial mercury removal (19).
Some processes operating on an industrial scale have been described; however, since this is a passive process, saturation occurs at metal loadings around 10% of the dry weight, after which the metals need to be eluted and the biomass regenerated (27).
Therefore, the efficiency of a process based on an active enzymatic reaction cannot be described adequately by the loading efficiency of the biomass (34).
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