Patent ID: 7553462
Filing Date: 2009-06-30
Classification: B82Y,C01F,C01P,Y10S

Abstract:
1. A method for the production of Mg(OH) 2 nanoparticles, by means of polyol-mediated synthesis, from MgCl 2 or Mg(NO 3 ) 2 or Mg(CH 3 COO) 2 or their hydrates or aqueous solutions of these salts as Mg precursors, and alkali metal hydroxide selected from the group of NaOH, KOH, LiOH or quaternary ammonium hydiboxide (NR 4 OH with R═CR 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 ) or metal alcoholates, comprising the following method steps: dissolving the Mg precursor in a selected polyol, in order to produce a first solution; producing a second solution in the form of an aqueous alkali metal hydroxide solution mixed with polyol or an aqueous quaternary ammonium hydroxide solution mixed with polyol or metal alcoholates mixed with polyol; adding the first solution to the second solution to produce a mixture; stirring the mixture; heating the mixture in one-stage or many stages to a temperature between 30° C. and 300° C; cooling a Mg (OH) separating solid from the suspension by means of a suitable solid/liquid separation method.