![]() ![]() The most used refining technique is based on chemical method whereby the gold- bearing scrap is dissolved in aqua regia (HNO3 + HCl). The filtered solution is treated with a Reducing agent Sodium Meta Bisulfite, and precipitates Gold, which is filtered, washed, dried and usually melted and granulated. The process involves to dissolve gold in Aqua regia ( Acid+Water Mixture ).Silver will form Silver chloride precipitates, which will be filtered out. In Aqua regia process the Gold (AU) should not be less than 65% and Silver (AG) should not be more than 10%. ![]() Our system work on the basis of Aqua Regia Process. The treatment takes place by dissolving the raw metal alloy through the use of the so-called “Aqua Regia” process, an opportunely calibrated mixture of hydrochloric acid (HCl) and nitric acid (HNO3). You are able to produce 99.99% pure gold (Au) in a single step within a production cycle that can last from 5 to 8 hours, from the preparation of the grains, to obtaining the pure ingot. ![]() The above system is able to treat from 300 gram. Our automatic gold Refining machine is mainly known for its durability and quality. Our automatic gold refining plant is designed utilizing high grade material, procured from reliable sources of the industry and as per the defined industry norms. Our system is safe as well as reliable in refining and extracting pure gold. With the inclusion of advanced knowledge and innovative machines in all our processes, we are engaged in manufacturing and supplying a broad assortment of Automatic Gold Refining Machine. The Gold Refining Plant offered by us are manufactured in compliance with international quality standards. We are one of the trusted companies in India, which is manufacture and exporter of Automatic Aqua Regia Gold Refining Plant. ![]()
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