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Dehydrating Magnesium Chloride by Double-salt Decomposition.
May-JT; Edlund-VE; Seidel-DC
NTIS: PB 279 653 :19 pages
Federal Bureau of Mines studies showed that some organic amine hydrochlorides can be used as dehydrating agents for producing anhydrous magnesium chloride from hydrates and brines. Laboratory- scale tests showed that double salts are formed by reacting 35 percent magnesium chloride brine or spray-dried magnesium chloride with pyridine hydrochloride. Heating decomposed these double salts to anhydrous magnesium chloride and recycle pyridine hydrochloride. Pyridine hydrochloride also chlorinated any magnesium oxide in the spray-dried magnesium chloride. The anhydrous magnesium chloride obtained by the method described contained less than 0.8 percent oxygen. More than 98 percent of the organic amine hydrochloride was recovered.
IH; Report of Investigation;
NTIS Accession No.
NTIS: PB 279 653
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division