The gold powder has to be chemically refined to produce pure gold before gold can be processed. After getting the flotation gold concentrate, it has to be extracted by cyanide. This is the most commonly used method for processing gold-bearing quartz vein and gold-bearing pyrite quartz vein gold ore. Generally use the yellow drug class as a trapping agent, turpentine oil as a foaming agent, in the weak alkaline slurry flotation gold concentrate (or gold sulfide gold ore). Then the flotation concentrate for cyanide leaching, gold is cyanide dissolved into gold complexes into solution, and then replaced with zinc powder (or treated with carbon adsorption method) to get gold mud, and finally gold mud pyrometallurgical smelting, and finally to get pure gold.
Put gold jewelry and rings and other things into the furnace for the initial melting, after the initial melting, these gold jewelry will become a pile of large and small gold powder. Then in the gold particles poured into another container that can withstand high temperatures, ready for the second step of melting, after the second high-temperature melting has turned into gold water of gold, the staff's next step is to pour the gold water into the corresponding size of the mold. After a series of processing after the initial molding of gold bars, it is said that the old gold jewelry will have a lot of gold content of small welding points, in the melting of gold bricks and can not guarantee its purity, the need for a special process of purification. Polished and polished gold bricks, which will then be engraved on the gold bricks labeled words. It is said that in the process there will be a lot of gold dust loss, these gold dust is often also difficult to collect good.
1, gold jewelry refers to the gold as the main raw material for the production of jewelry, gold jewelry in the processing will produce some gold dust. Another feature of copper alloy decorative products is that it has a sense of gold, often replacing the rare and valuable gold in the architectural decoration as an embellishment to use. Another application of copper alloy is copper powder (commonly known as "gold dust"), which is a kind of golden pigment made of copper alloy. The main component is copper and a small amount of zinc, aluminum, tin and other metals, after a certain chemical means, can be processed into gold.
2, gold jewelry refers to the gold as the main raw material for the production of jewelry, gold jewelry in the processing will produce some gold dust, these gold dust need to use the gold dust recovery device to collect, to prevent the loss of gold dust loss.