Resumen de Flame tamers: : Brucite, huntite and hydromagnesite

Industrial Minerals

• Magnesium minerals boast several unique properties which make them superlative flame retardants, but as Ian Wilson, Consultant*, explains, despite their wide application many of these minerals are only recovered in a handful of places across the world.

  Economic deposits of the natural magnesium minerals brucite, huntite and hydromagnesite are found in only a few places in the world and are extracted mainly for use as flame retardants.

  There are two main areas of brucite deposits globally - in Liaoning, China and in Russia, both with significant resources.

  Russian brucite miner Russian Mining Chemical Co. (RMCC) has grown significantly over the last 10 years, largely on the back of international sales to the flame retardant industry.

  Brucite (magnesium hydroxide, or Mg(OH)2), along with huntite (magnesium calcium carbonate) and hyrdromagnesite (hydrated magnesium carbonate), are among the lesser known magnesium minerals. Their chemical compositions are shown in Figure 1.

  Brucite