BE791108A - High purity sodium chloride prepn - by evap crystallization of brine plus modifiers, and sepg crystals from calcium sulphate
- Google Patents
High purity sodium chloride prepn - by evap crystallization of brine plus modifiers, and sepg crystals from calcium sulphate
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C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
C01D3/00—Halides of sodium, potassium or alkali metals in general
C01D3/14—Purification
Abstract
Method of making high purity NaCl from crude brine saturated with NaCl and almost saturated with CaSO4 comprises evaporating crude non-purified brine to the point of crystallization of NaCl, then crystallizing by evaporation, washing the saline slurry formed with the crude brine, and separating the NaCl crystals and the CaSO4 crystals in countercurrent. The NaCl is of requisite purity for electrolysis.
BE791108D1972-11-08High purity sodium chloride prepn - by evap crystallization of brine plus modifiers, and sepg crystals from calcium sulphate
BE791108A
(en)