2.Through the phase diagram analysis and calculation, a production method to improve the quality of carnallite by evaporating the bitternfrom which the sodium chloride has been eliminated by brine mixing method is presented in this paper.
6.With the domestic and foreign advanced oxidizing preconditioning (it can remove ammonia and nitrogen organic material, humic acid, magnesium and HVM film) separating technology, it separated solid precipitant frombrine so as to obtain purified saltbrine.
7.Fractionation factor between halite and brine is from 1.0001 to 1.0021. The δ37Cl value for vertical profile of salt deposits from the Mahai drill hole is from 0.00‰to 1.05‰.