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<p>[QUOTE=&quot;swagge1, post: 997731, member: 22402&quot;]Gary I am saying that 10% is unrecoverable because it is not there anymore or not worthwhile to recover due to cost.&nbsp; That could mean that the 10% is still left in the carrier that is discarded, but is not economically feasible to recover it.&nbsp; The 10% lost could have also been lost by the nature of the EO process so, in essence, the 10% was lost before it could even be reclaimed.&nbsp; I&#039;m thinking it is probably a combination of these 2 yield losses. Hope this helps.</p><p><br /></p><p>Medoraman is correct in that the catalyst is never &quot;consumed&quot;.&nbsp; It either combines with other elements such as oxygen or is blown off the catalyst and ends up elsewhere down the line.&nbsp; I&#039;d bet that if a test could be conducted we would find silver in the ppm, ppb, or ppt range in the finished product.[/QUOTE]</p><p><br /></p>

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