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 Gold Smelting 

gold smelting

Professional mining companies recover gold and other precious metals in quantities sufficient enough to pay refiners to do the smelting for them. But what can smaller scale recreational gold miners do? Consider melting or smelting your gold, silver, and other metals yourself! But first understand that there is a big difference between melting and smelting.

Melting means to change something from a solid to a liquid by the application of heat. When the heat is removed, the melted material returns to its solid state. Its chemical content has not been changed. Smelting, however, is a metallurgical term. It refers to "burning off" the impurities that your gold might be mixed with, resulting in nearly pure gold.

If you already have "pure" gold in various shapes and sizes, whether found in its natural state or found lying unwanted in a jewelry box, and your goal is to melt it and pour into a nice mold, then an electric furnace might be your best choice. If your gold is mixed with impurities you want to burn off, an electric furnace is still a good choice, but so is a microwave smelting kiln. To get started, you will need crucibles, tongs, ingot molds, safety equipment and other gold smelting suppliesFREE SHIPPING on all orders of $350 or more!

Ideas here on where to sell gold. Information here on Gold Melting Point.

Looking for a high-powered, high quality, and highly efficient kiln designed to melt gold and silver? Tabletop electric gold furnaces are not only affordable, but bring the latest technological innovation and functionality to more than just artists — now gold miners can mix their precious metal concentrates that contain gold, silver, sterling silver, copper, aluminum, bronze, lead, and zinc with flux, and smelt it at home.

Tabletop kilns have an 8-minute firing cycle, maximum achievable temperature of 2200 F (1205 C), and are available in various sizes.  Click here to learn more about portable gold melting furnaces.

gold smelting supplies

Smelting gold, silver, platinum and other metals at home is a popular trend these days, whereas it used to be of interest only to jewelry designers and artists. Whether you are smelting natural gold you've recovered from prospecting, or the broken jewelry or beat up coins you no longer want, smelted gold is most easily sold or re-fashioned after first removing impurities and casting it into ingots.

In addition to your gold furnace, torch, or microwave gold kiln, the basic gold smelting supplies you will need include flux, crucibles, tongs, ingot molds, and safety equipment.

Looking for a different way to separate fine gold from your black sand concentrates? Burn it with a Microwave Gold Smelting Kiln and Kit! Keep the nuggets and pickers and smelt the rest!

All you need is a 1200 watt microwave with the magnetron on the side or rear (a magnetron on the top doesn't work as well) that is located out in your garage or shop (don't use the one in your kitchen), a few tools, and you are on your way to smelting your own gold at home! Click here to learn more about Microwave Gold Smelting Kilns and Kits.

Smelting Through the Ages 

 

For thousands of years, humans have been prospecting, mining and refining metals. The invention of smelting was a true technological advancement for mankind and marked the end of the Stone Age. Working with native metals such as copper, silver, gold, lead, and tin came first. These metals have fairly low melting points and the ability to cast and forge them was revolutionary. The Bronze Age was born when tin was mixed with copper, creating the first alloy and better weapons of war.

As the centuries passed, metallurgists tried to figure out how to smelt iron. Iron doesn't occur in its native form and melts at a far higher temperature than any of the metals that had been smelted previously. By developing an ingenious process, iron was at last smelted, forged, and put to good use. Thousands of years have passed since the Iron Age began, and since then many exotic compounds have been created to support our quest for better and better technology. Did you know that the addition of tungsten to steel created the super-alloy that was first used in cannons in WWI? And that the modern-day smart phone is built out of at least 13 different metals?

Whether you've recovered natural gold (nuggets, flakes, wire gold, pickers, flour gold) or have unwanted jewelry or beat up coins, you can smelt these at home. Choices for doing so include an electric furnace or microwave smelting kiln. To get started, you will also need crucibles, tongs, ingot molds, safety equipment and other basic gold smelting equipment.

 

FREE Assaying Information!

Download a copy of Geological Survey Bulletin 1445, " A Manual on Fire Assaying and Determination of the Noble Metals in Geological Materials".

Here's what the intro says: Detailed directions are given for use of fire-assay techniques to separate and concentrate the noble metals Ag, Au, Ir, Os, Pd, Pt, Rh, Ru from many varieties of samples. Included are procedures for selecting appropriate assay charges based on approximate chemical compositions of the samples. Whenever such data are available, a saving of time by avoiding reruns is generally possible even with minimal mineralogical information. Also included are descriptions of methods currently being used by the U.S. Geological Survey for the determination of the various noble metals, mostly after concentration by fire assay.

Click here to download the pdf.