Aqua Regia Processing chemical process that uses a mixture of hydrochloric and nitric acids to dissolve and separate gold. 2. Electrolysis An electrochemical process that uses an electric current to refine gold. 3. Miller Process A thermal process that uses chlorine gas to remove impurities from gold. 4. Inquartation Process A chemical process that uses nitric acid to separate gold from other metals. At 99.9 Gold Refinery Limited, we use state-of-the-art equipment and techniques to ensure efficient and effective refining.
