Use of a binary salt flux of NaCl and MgCl2 for the purification of aluminum or aluminum alloys, and method thereof

摘要

A use and a method for the purification of a metal selected from the group consisting of aluminum and aluminum alloys, wherein said metal is in a liquid phase and is contacted with a salt flux consisting of a binary mixture of NaCI and MgCI. Preferably, more than 22 % by weight of the binary mixture consists of NaCI.