Patent ID: 6143270
Filing Date: 2000-11-07
Classification: C01F,C01P

Abstract:
A process for producing substantially anhydrous magnesium chloride, the process including the steps of:(a) forming an alcohol magnesium chloride solution by admixing hydrated magnesium chloride with an alcohol which is miscible with water;(b) dehydrating the alcohol magnesium chloride solution to form a dehydrated alcohol magnesium chloride solution;(c) forming a precipitate comprising magnesium chloride hexammoniate by introducing the dehydrated alcohol magnesium chloride solution and ammonia into a reaction vessel containing a non-aqueous solution having an ammonia content of greater than 7% by weight;(d) recovering the precipitate from the reaction vessel;(e) washing the recovered precipitate with a washing solvent to form a washed precipitate; and(f) heating the washed precipitate to form substantially anhydrous magnesium chloride.