Our gold refining plants by aqua regia are built using the most advanced technologies and the highest quality raw materials, in total accordance with international safety standards. The plants are modular, hence extremely flexible and suitable for the big industry
Aqua Regia Gold Refining Tumbler Aqua regia gold Refining Tumbler is a new technology compared to the static refining plants. It is mainly a total different way to work. The static refining unit is an handicraft way to refine, the Tumbler Machine is an industrial way to refine.
Gold Refining Systems, Inc., is an innovative Company devoted to helping gold miners, prospectors, jewelers and refiners of all sizes to refine gold, silver and other precious metals safely, efficiently, and with ease. Our Company is establishing higher standards in precious metal refining industry for safety, pollution control and efficiency.
The two gold refining methods most commonly employed to derive pure gold are the Miller process and the Wohlwill process. The Miller process uses gaseous chlorine to extract impurities when gold is at melting point; impurities separate into a layer on the surface of the molten purified gold.
The most effective yet simple process to refine gold from metal alloys, is by means of Acqua Regia solution, a mixture of appropriately calibrated hydrochloric and nitric acid, which has been widely employed in diverse sectors (goldsmith, mining, WEEE, galvanic, etc.) as of today.
The separation and purification of precious metals can be carried out, if basic requirements are met, through an electrolytic system. In fact, with the passage of electrons, in the form of an electric current, through a metal conduction system, it is possible to carry out the dissolution of selected metals, placed at one of the two poles, inside a specific electrolytic solution.