how to construct a gold refining furnace

Gold Smelting & Refining Process

Gold and silver form an alloy that is heavier than the slag and sinks to the bottom of the furnace. Once the smelting is complete, the slag is removed and the precious metals are casted in ingots. The slag contains gold and silver and must be reprocessed in order to minimize the losses of precious metals.

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Homemade Gold Kilns | eHow

Never look down into the furnace. Using a face shield, an oven glove and a shiny piece of metal, hold the metal over the furnace and angle it so you can see down inside. The heat of the furnace is beyond common experience. Don't put any flammable material within three feet of the furnace. Construct a place to put the crucible after the gold is melted.

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Gold Smelting & Refining Process

Gold and silver form an alloy that is heavier than the slag and sinks to the bottom of the furnace. Once the smelting is complete, the slag is removed and the precious metals are casted in ingots. The slag contains gold and silver and must be reprocessed in order to minimize the losses of precious metals.

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how to construct a gold refining furnace

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This document describes how to build a furnace for melting metals like copper, silver, gold, etc. As a metal container a primarily used for metal melting and heat treatment until 1200 o C and based upon resistance heating.

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Recovery and Refining of Gold Jewellery Scraps and Wastes

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As the gold scrap liquefies in the furnace, borax and soda ash are mixed in to separate the pure gold from other precious and non-precious metals. A sample is removed for assaying, which is the process of measuring the gold content.

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