Treatment recycling process of hydrochloric acid liquid waste produced in rare metals extraction process
A technology of hydrochloric acid waste liquid and extraction process, which is applied in the direction of chlorine/hydrogen chloride purification, chlorine/hydrogen chloride, etc., can solve the problems of large power consumption, reduce production costs, save heat energy, and solve the effects of environmental protection
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[0021] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0022] A treatment and reuse process for hydrochloric acid waste liquid produced in the rare metal extraction process, comprising:
[0023] (1) Filter the hydrochloric acid waste liquid in the waste acid storage tank through the filter tube, and introduce it into the multi-effect heating evaporation system. Multi-effect evaporation: each effect evaporation system consists of a heating chamber and an evaporation chamber; in each effect, the waste Hydrochloric acid circulates between the heating chamber and evaporation, and the low-concentration hydrochloric acid waste liquid is evaporated sequentially through the first effect, the second effect, and the third effect to obtain a concentrated liquid...
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