Doral Refining Corporation - Assaying and Refining Gold, Silver, Platinum, Palladium.
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The Refining Process

  • Scrap is weighted in pennyweights (dwt) using a state certified scale and recorded
  • Scrap is mixed with flux, put into a clay graphite crucible and melted in an induction oven.
  • A sample is removed from the crucible and molten metal is poured into a bar mold.
  • After cooling, bar is cleaned of contaminants and placed in an element monitor for assay.
  • Payment is made to customer based upon after melt weight and percentages of metals.
  • Bar is re-melted and poured into an acid mixture.
  • Metals are chemically separated and filtered.

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  Copyright © Doral Refining Corporation  ·  533 Atlantic Avenue Freeport, NY 11520  ·  800-645-2794

Coin prices posted on our website are subject to market fluctuation.
We buy bullion coins in mint condition and in original packaging, just as we sell them.