its salt coating or can be treated to remove the salt coating prior to use in applications there are many commercial applications of this technology illustrated by the following representative but non exhaustive examples iron neodymium and boron chlorides are mixed in a stoichiometric ratio suitable for the production of neodymium iron boron magnets the chlorides are injected as liquids into a stoichiometric excess of molten sodium at a temperature in the range of 150 u00b0 c to 700 u00b0 c the metal particles thus produced are an alloy of iron neodymium and boron coated in sodium chloride the metal particles can be separated from the molten sodium for example by passing the sodium through a filter of a size effective in the separation of the molten sodium from the salt coated metal particles the metal particles can then be treated to remove the salt coating for example by heating the salt coated particles to above the melting point of the salt and then filtering the metal particles for example on a belt filter to remove the molten salt the salt coating can also be removed by applying pressure to the metal powder thus causing the salt to flow and separate from the metal powder next the metal particles can be pressed and heated to remove the remaining salt and sinter the metal powders into a solid object of the desired shape aluminum chloride is melted and.