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Caustic evaporation product concentration control

FIGURE 11.58. Caustic evaporator product concentration control. [Pg.1163]

The caustic liquor produced in a membrane cell is weaker than that from a mercury cell. Typical concentrations are 30-35% NaOH and 28-32% KOH. The net production of caustic solution goes to evaporation and final processing. The caustic solution also recycles around the catholyte side of the cells. This allows control of both temperature and concentration. A cooler removes the waste heat generated in the cells, and water addition keeps the catholyte concentration at the desired level. [Pg.449]

See other pages where Caustic evaporation product concentration control is mentioned: [Pg.1159]    [Pg.1160]    [Pg.494]    [Pg.180]    [Pg.494]    [Pg.180]    [Pg.71]    [Pg.494]    [Pg.180]    [Pg.548]    [Pg.326]    [Pg.689]    [Pg.946]    [Pg.947]   
See also in sourсe #XX -- [ Pg.1162 ]



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