Gold Smelting Process

Save

Gold Smelting

  • Gold is purified by means of a smelting process, which utilizes pressure, high heat and chemicals to accomplish the task. Like any metal that appears naturally in the earth, there are impurities that must be removed. Removing minerals and other impurities allows gold to be used in its purest form, which is necessary in many applications, particularly in jewelry and electronics. Gold is utilized frequently for electronic applications because it does not tarnish or rust over time.

Ore Processing

  • The first step in the gold smelting process occurs when ore containing gold is mined from the earth. At this point, the crude binding matter and the gold metal need to be separated. This is accomplished by pulverizing or crushing the gold ore, and then placing it in a furnace. The furnace must reach temperatures in excess of 1064 degrees Celsius, in order to elevate the gold above its melting point.

Removing Impurities

  • While many impurities are burned off in the furnace, other metals remain. Gold ore extracted from mines in the earth contains a significant amount of impurities, including traces of other metals. In order to separate the gold from other metals, chemicals such as cyanide solution or mercury are introduced to the gold. This process causes the gold to coagulate, and form nuggets and clumps of gold.

Use of Purified Gold

  • After the gold smelting process is complete, the gold is melted once more, and poured into molds to form ingots. Later, the gold ingots may be used for various purposes fulfilled best by this precious metal. Some of this gold is used for jewelry or electronics contacts and may later be recycled for other uses. In the event that gold from jewelry or electronics is to be recycled, the scrap gold must go through another smelting process in order to be considered pure once more.

References

Promoted By Zergnet

Comments

You May Also Like

  • How to Make Flux for Gold Refining

    Refining gold from ore or concentrates is done during the smelting process. During this process, flux is used to dissolve contaminates such...

  • How to Build a Smelting Furnace in "Minecraft"

    Like the crafting table, the smelting furnace is an essential item you'll struggle without in "Minecraft." When crafted and fueled, this device...

  • How to Refine a Gold Smelt

    In nature, gold nuggets are not pure gold. They are a combination of minerals, known as ore. The metal can be removed...

  • How to Melt Scrap Gold

    Whether you want to make a little extra money from your scrap gold, or you simply want to change jewelry you no...

  • How to Melt Scrap Silver

    The process for smelting silver ore and melting silver has been in practice for thousands of years. Silver has been used by...

  • How to Smelt Old Jewelry

    For those who like to adorn themselves with rings, necklaces, bracelets, and other accessories, jewelry is one of life's great pleasures. It...

  • DIY Smelter

    Construct a simple propane powered do-it-yourself smelting furnace from parts you can purchase at your local hardware store. With a smelting furnace...

  • A Poor Man's Method of Smelting Gold

    Smelting is a chemical process in which one material is bonded or released from another when heat is applied. Smelting gold is...

Related Searches

Check It Out

Can You Take Advantage Of Student Loan Forgiveness?

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!