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<p>[QUOTE=&quot;Brett_in_Sacto, post: 2402296, member: 71510&quot;]To some extent you can re-use some of the chemicals as you work through the process if you are careful.&nbsp; Some of them burn off as you catalyze the gold burn off the excess low grade metals.&nbsp; At the end, baking soda will neutralize the by-product once it loses the strength and ability to process the metals.</p><p><br /></p><p>It&#039;s definitely not an amateur hour project.&nbsp; It requires dangerous chemicals and does create bad fumes, so you need a filtered vent hood and to understand the lifecycle of the chemicals and by-products.</p><p><br /></p><p>There is definitely a satisfying &quot;Eureka!&quot; moment when you get your first recovery![ATTACH=full]495264[/ATTACH][/QUOTE]</p><p><br /></p>

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