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How To Smelt Your Gold And Silver

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How To Melt Silver At Home

Smelting Gold/Silver Sulfides Part 1: Testing Different Collector Metals For Gold Recovery

Warning: Much of this article contains explanations for how silver is melted down in an industrial setting. If you are looking to melt down your silver at home, youll want to first seek guidance from a professional that is qualified to help you with your scrap silver needs. Be sure that you dont use this article as a guide that will qualify you to melt down your own silver simply by reading it.

Silver is one of our most precious commodities, but it certainly isnt our rarest. Silver ranks as one of the most common of the precious metals much more common than gold and platinum and subsequently we use it more in our daily lives on cuff links, on jewelry, and even in our mouths when we use silverware.

As a precious commodity, silver has an innate value that can be sold at almost any time for an excellent price. Silver is also a commodity that helps to stabilize markets and help people make solid long-term investments. So it makes sense that you would want to know how to handle your own silver supply, including how to sell it.

If youre looking at how to melt down your own silver, this article will explain whats needed. But once again it is strongly recommended that you dont begin melting your own silver until you are sure that everything you are doing is legal, safe, and well-studied.

Elements to Melting Down Silver

A Strong Enough Heat Source

A Crucible

Tools for Handling the Crucible

Safety Equipment and Common Sense

How To Melt Silver

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Silver is the most common of the precious metals. Its used in jewelry, electronics, medical supplies, and a number of industrial uses. Until the end of the nineteenth century, silver was also a major medium of currency throughout the world. As a result, silver is abundant in our world. As an abundant precious metal, people today like to work with it for a number of reasons. However, while silver is attractive and is a good metal for beginners to start with, melting any metal is a relatively complicated thing to do if you have no experience. Fortunately, with some knowledge, work, and the proper supplies, its possible for someone with no experience to begin melting and casting silver at home.

Gold And Silver Melting Furnaces & Equipment

Induction Melting is widely used for Gold Melting, Silver Melting, and Copper melting. These induction gold melting systems are used in any realm of gold melting from High and Low Production Mining facilities to Precious Metals Refining entities to precious metals wholesale and retail buyers looking to melt their metals for more accurate assays.

Induction Melting offers a number of benefits of casting gold over traditional methods of melting. Induction Heating is considered a Green Technology, as it does not put off any harmful emissions into the atmosphere, since heat is being generated by the alternating magnetic current into graphite or SIC crucible. Other advantages of casting gold are very fast heat-up times, frequency stirring for more homogenous melts and induction melting technology does not heat up the atmosphere the user is working in. The only heat being generated is the heat from the actual melt.

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Sand Sludge And Powders

Lets say you have a quantity of floor sweepings that you collected at a jewelry factory. Those powdery materials might contain small flecks of gold, silver, and platinum scrap. The application of high heat causes those precious metals to separate and be left behind after dust, sawdust and other undesirable contents are reduced to ash. Give us a call at 800-426-2344 and we can explain how this works.

How To Choose Gold Smelting Flux

How To Smelt Your Gold &  Silver Book

Before gold and other precious metals can be converted into jewelries and used for various other purposes. They have to go through a refining process to get them into a useful form. This is to ensure enhanced purity and fluidity to make it easier to form into different shapes.

Smelting is an integral part of the refining process of gold and other precious metals. It is the major part of refining where the precious metal is melted out of its ore. Metal ores often contain a lot of other elements and impurities, smelting is therefore important in removing these.

Gold smelting flux is often added to the ore during the smelting process. In this post, we will be discussing the importance of Gold smelting flux and its uses in smelting. Most importantly, you will learn how to select the right gold smelting flux for your smelting projects.

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All You Need To Know About Mixed Fluxes During A Gold Smelting Process

As can be seen from the previous section, various flux perform different specific functions in the gold smelting process. There are however various types of concentrate, and each one has unique needs that can be met by various gold smelting flux. In most cases, the effect of more than just one kind of flux is required.

For example, a charge may have high smelting point which needs to be lowered by a flux like Potassium Carbonate for example. This same charge may also have metallic impurities. Therefore also requiring the use of a flux like Borax to form metal oxides and remove impurities.

It thus becomes necessary to combine more than one flux in order to achieve the required level of precious metal purity. In this section, we will discuss these combinations.

There are various flux recipes which depend majorly on the kind of ore or concentrates being smelted. It is advisable to consult standard texts and determine the calculation for the effective weights and ratios of flux combinations. However, below are a couple of basic recipes that will at least point you in the right direction to start checking.

General Recipe

Traditionally, for most ores, the composition of the flux mixture should contain between 40-50% Borax, 10-15% Soda Ash, and 5-1-% Silica sand. In most scenarios however, the properties of the ore will vary and so will require different proportions.

Neutral Ores :

Black Sand Samples

Chapman Flux Recipe

Pieces Of Jewelry That Contain Several Precious Metals

In years past, small items of jewelry sometimes were made of gold that had silver appliqued to their surfaces. We have seen a variety of such items, including the slip-on cases that were used on cigarette lighters, items of barware, and more. If you have old items like those, do give us a call at 800-426-2344 and talk to us. Heat can be your best friend when it comes to separating the gold from other materials these items contain.

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Obtain Other Heat Sources

If you are unable to buy a microwave or electric furnace, you may have to be more creative when obtaining a heat source for smelting gold. A propane torch can be a successful heat source, and an added bonus is that it will melt the gold within a few minutes. To use a torch, place the gold into a crucible, place the crucible on a surface that withstands heat, and point your propane torch toward the gold. Add chemical borax to the gold first if you need it to melt at lower temperatures.

If the gold in the crucible is fine and powdered, it is important to move the torch down to it very gradually to avoid blowing it around and to make sure the crucible is heated slowly to ensure that it doesn’t crack. An oxy-acetylene torch melts the gold faster than propane, which is important to keep in mind when buying your equipment. Hold your torch above your gold and move it slowly in a circle. When the gold powder becomes red it has begun to heat up and you can begin to work the torch in gradually until the powder forms into a nugget-like shape.

Pour The Molten Silver

Smelting and Gold Refining PART 2: Electroplating Copper to Recover Gold and Silver

Use tongs to hold the crucible in pouring the molten silver. Pour the melted silver into the molds you have prepared while it is in liquid form. Again, ensure that you have already gotten rid of all the impurities before pouring the metal into the molds to provide a higher quality finish and get the desired shape and angle. You may also use a refining flux to get rid of any fineness marks.

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Gold Smelting At Home

  • Thumbnails gold extracted
  • In smelting and melting for pure gold, that is, gold of 24-kt. value is very much too soft for jewelry purposes and it is therefore always alloyed with other metals to increase its hardness and resistance to wear. For the same reason pure silver is seldom used alone but is alloyed with copper, the standard alloy being sterling silver which contains 92.5% silver and 7.5 % copper. The metals commonly used for alloying gold are silver, copper, nickel and zinc.

    In addition to hardening the-gold and producing alloys of different karat values the use of these metals makes possible the production of gold alloys of various colors such as yellow, red, green and white. The gold-silver-copper alloys vary in color from light greenish-white through green, yellow and red depending on the relative amounts of the three metals. Green or yellowish-green colored golds are also obtained by combining relatively large amounts of zinc with gold, copper and small amounts of silver.In recent years the so-called white golds have been very popular for jewelry chiefly because of the resemblance to the color of platinum.The bluish-white color of these white golds depends on the presence in the alloy of both nickel and zinc, the former in 14 kt. white golds varying between 12 and 17% and the latter between 4 and 8%.


    Getting The Right Equipment

  • 1Buy a crucible container to hold the gold as it melts. You need the right equipment to melt gold. A crucible is a container that is specifically designed to hold gold as it melts because it can withstand the extreme heat.
  • A crucible is usually made of graphite carbon or clay. Golds melting point is at about 1,943 degrees Fahrenheit , which means you will need temperatures that hot to melt it. Thus, it’s very important that you don’t just choose any container.XResearch source
  • In addition to a crucible, you will need a pair of tongs to move the crucible and hold it. These need to be made out of heat-resistant material.
  • If you don’t have a crucible, a homemade method uses a potato to melt gold instead of a crucible. To use this method, cut a hole into the potato, and place the gold in it.XResearch source
  • 2Use flux to remove impurities from the gold. Flux is a substance that is mixed with the gold before melting it. It is often a mixture of borax and sodium carbonate.XResearch source
  • You need more flux if the gold is impure. You can use many different formulas for flux mixtures. One method involves mixing borax and sodium carbonate. Add two pinches per ounce of clean jewelry scrap and more for dirty scrap. You can use regular baking soda or bicarbonate purchased from the store. When you heat it, it forms sodium carbonate.XResearch source
  • 3Be very careful of safety at all times. It can be dangerous to melt gold because of the extreme heat needed to do it.
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    Everything You Need To Know About The Process Of Smelting Gold

    by Precious Metal Team | Mar 1, 2019 | Gold, Jewelry

    Has your gold jewelry been sitting in your jewelry box for years without being used and collecting dust? Or maybe you’re an artist hoping to use the unique hue and texture of gold for your next creation? Smelting gold is a popular choice for those with outdated gold jewelry that is mixed with other materials.

    Smelting gold is a technique for refining and shaping metals that has been in use for thousands of years. The discovery of this process marked the beginning of the Bronze Age as gold smelting was used for the creation of new weapons for war. Whether you are hoping to unleash your inner alchemist or you simply have extra gold at home, smelting is a simple process that you can do at home with the correct equipment and precautions.

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    What Is Smelting?

    Enjoy now, pay later

    How it works

    • Simply select Afterpay as your payment method in the checkout or when picking up your items from the Mighty Ape distribution centre, and enter your details at Afterpay to complete your order
    • Your payment schedule will be shown in the checkout, and emailed to you
    • If you are a new Afterpay customer, the first payment will be made at the time of purchase, with remaining payments over the next 6 weeks
    • Once you have been an Afterpay customer for 6 weeks, on subsequent orders you may be eligible to make your first payment in 14 days, with final payment in 8 weeks
    • If you need to return your items for a refund, the payment plan can be cancelled
    • If you fail to make a payment, you will be charged a late payment fee of $10 with a further $7 fee added 7 days later if the payment is still unpaid
    • A New Zealand credit or debit card
    • To be living in New Zealand
    • To be over 18 years of age

    What you can buy

    • Your order total must be between NZ$100.00 – $1,000.00
    • All products displaying the Afterpay symbol can be purchased using Afterpay if the order value limits are met
    • Afterpay cannot be used for electronic Gift Vouchers
    • Afterpay will only be available if all items in the trolley display the Afterpay symbol

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    Benefits Of Adding Flux While Smelting Gold

    There are a couple of benefits to be gained from the use of flux in the gold smelting process they include:

    Higher Profit Margins: The use of gold smelting flux ultimately increases the purity of the precious metal to be casted into ingots or bars. Therefore, buyers are dealers are definitely going to be willing to pay higher prices for your gold bars. When compared with the increased revenue associated with higher purity, the cost of purchasing gold smelting flux is definitely a wise and worthy investment.

    Apart from just short term monetary gains, a long term economic benefit of using gold smelting flux is the reputation. When your plant or foundry becomes popular for producing only high purity bars, you will have steady business and increased profits.

    Lower Energy Costs: Since the use of gold smelting flux helps to lower the smelting point temperature. Less energy is utilized in bringing the ore up to smelting point. The decrease in costs expended on either electricity or fuel leads to a corresponding increase in profit levels.

    Utilizing less energy in the smelting process also contributes ultimately to reducing the carbon footprint of the process thereby.

    There often still remains some that must be gotten rid of by the smelting process. The addition of flux speeds of the removal of this residual mercury thereby ensuring the health and safety of operators and personnel.

    How To Extract Gold By Smelting

    Extraction of gold by smelting is done with metallic mix gold. Scrap gold, jewelry gold, With gold components for more than 25%.

    Not suitable for metal gold plated surfaces. If you want to do. Using nitric acid to dissolve Metal mixed with gold out. You can get scrap gold. Scrap gold bring smelting.

    Ratio 1:2:1

    1.Copper 3 grams

    2.Lead 6 grams

    3.Gold alloy. Estimated that there is a mixture of gold 3 grams

    Melt metal all together. The copper melt first. Put the gold and lead Homogeneous

    Pour the melted gold into the water.Broken down into smaller ones. To make it easier to use nitric acid to dissolve the metal is not gold.

    The smelting of gold and poured into water pellet small.

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    Why Add Flux While Smelting Gold

    Traditionally, smelting is carried out between 1150 and 1450oc for about 2 hours. After this, the gold and silver alloy settles to the bottom since it is heavier while the slag floats and is taken off. Despite these extreme conditions, however, it still remains difficult to separate out some impurities.

    It is often the case that some of the gold gets trapped within the slag which floats. Conversely, some of the impurities and associated elements may also stick to the pure metal, sinking along with it. These two anomalies are sure to lead to situations in which impure ingots are produced. They may also lead to loss of the pure metal along with the slag.

    This is why gold smelting flux is important. gold smelting flux is basically a chemical substance or a mixture of chemical substances. Which are added in regulated amounts to the precious metal ore charge. It helps to combat all the problems mentioned previously and ensure that the ingots are as pure as possible. Below are some of the ways in which the use of gold smelting flux makes the smelting process more efficient:

    Flux can reduce smelting point density and viscosity fluidity metallic oxides easily eliminated precious metal losses are reduced and broken easily.

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