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<p>can be further refined back to magnesium.  </p>

<p><big>Appurtenant processes</big></p>
<p>The resulting porous metallic titanium sponge is purified by <a href="page.php?w=Tank_leaching">leaching</a> or <a href="page.php?w=vacuum_distillation">vacuum distillation</a>. The sponge is crushed, and pressed before it is melted in a consumable electrode vacuum <a href="page.php?w=Electric_arc_furnace">arc furnace</a>, "backfilled with pure gettered <a href="page.php?w=argon">argon</a> of a pressure high enough to avoid a glow discharge". The melted <a href="page.php?w=ingot">ingot</a></p><p>
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