Abstract

It is investigated the process of recycling distilled liquid i.e. the waste of soda ash production by the ammonia method. Distilled liquid was treated with sodium hydroxide. Calcium hydroxide, which is formed in this case, was filtered out; the filtrate, consisting mainly of sodium chloride, was subjected to treatment in a membrane electrolysis cell. Such processing of distilled liquid is shown to enable to produce calcium hydroxide, sodium hydroxide and chlorine as commodity products.

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