In brine joins the sodium carbonate solution, make its and saline in the Ca2 reaction, formation of insoluble calcium carbonate precipitation, the reaction type is as follows: G. N, L7 W'A
V, D W5! J7 X: NCa2) {CO32- → CaCO3. 3 Z5 C W F | * Y5, J9 ~
in order to apply Ca2 inter net, the amounts of sodium carbonate must exceed the reactive theory demand, the process of sodium carbonate of alkali 200~400mg/l.
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