How many chlor-alkali plants produce bromine on their own?
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This post was last edited by hangover2010 on 2017-9-16 22:13. Do the larger chlor-alkali plants located along the coast also produce bromine?
Chlor-alkali plants have no inherent connection with bromine production; the raw materials for bromine production are generally underground brines, salt lake brines, seawater, or concentrated seawater.
The main raw material for ion-exchange membrane caustic soda plants is industrial-grade sodium chloride, which is generally produced from rock salt, lake salt, sea salt, or well salt. The bromine content in this sodium chloride is very low, as during the salt production process, bromine does not crystallize along with sodium chloride but remains in the brine. The raw material for the bromine extraction process is mainly brine rich in bromide ions after salt production, rather than seawater. The original poster had better go and read a book titled \"Brine Chemical Engineering\".
It is indeed necessary to remove bromine from chlor-alkali products. Could the original poster explain how this can be done (other than through chlorine stripping)?