Abstract: Set forth herein is a new method of salts cleaning from higher solubilization impurities by virtue of homogenization thereof with a solvent until the obtainment of a uniform suspension and curing thereof at a constant temperature, whereby the solubility factors delta for the salts subject to separation is the highest, the salt thus cleaned being then filtered and separated from the contaminated mother solution, the latter to be recirculated to the initial point of the process for further extraction of all the remaining components of the mix.

Abstract: The present disclosure provides a process for recovering from high salinity liquid a substance comprising a selected alkaline earth carbonate salt, the process comprises (i) adding to said high salinity liquid a reagent comprising a solution of an alkali metal carbonate in an amount sufficient to allow precipitation of said substance in said liquid, while continuously introducing into the liquid a gas whereby a high degree of precipitate is formed in the liquid; and (ii) isolating said precipitate from the liquid, wherein said precipitate comprising the alkaline earth carbonate comprising substance in an essentially purified form (at least 95% w/w degree of purity). Also provided are a unit and a system constructed and operative for performing the process, preferably continuously.