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  • Is there a complete solution for zinc wire replacement extraction?

    Time: 2022-11-21 Source: Writer:
    Many customers are concerned about whether gold refining is feasible! In this article, Dasen Mining will teach you how to select gold, as well as the operation method of gold extraction, as well as our viewpoints on this project. Thank you for visiting our site. If there is something you don't understand, don't hesitate to contact us. If you have any questions, please do not hesitate to contact us.
    Next are the materials that need to be prepared when extracting gold:
    Hand held heat gun
    Borax
    Scales
    Small crucible
    Glass stirrer
    Filter cloth
    Several beakers with scale
    Electrolyte
    Dilute nitric acid
    Zinc wire
    PH test paper
    Citric acid
    Gold powder
    Gold plating

    The equipment is generally available, and gold-plated materials and de-gold powders can be purchased as finished products - in this case, we do not recommend it.
    Here is the specific operation method:
    Step 1: De-gold
    The ratio of gold plating material and de-gold powder is 50:1, it is introduced into the container, and hot water is added. If you feel that the effect of dragging in is not good, it means that the gold content in the gold-plated material is relatively high, and you can continue to add a small amount of de-gold powder. It will fade into golden water in a few seconds under normal circumstances.

    Step 2: Replacement
    Impurities are filtered before replacement to ensure the purity of the finished gold. At this time, filter cloth or filter mesh paper will be used, and it can be filtered several times with water. At this time, the filtered gold water is alkaline. We need to adjust the water to be acidic so that it can chemically react with the zinc wire in the next step. At this time, the citric acid will work, and the next step is to replace it with zinc wire. It is necessary to ensure that there is hot water in the container at this time, so that the replacement effect will be better. When the zinc wire is put in, it must be fluffy, so that the gold in the gold water can be adsorbed on the zinc wire. Add more water to submerge the zinc wire. After 2-3 hours, the zinc wire will turn black. The second step is completed

    Step 3: Zinc Oxide Wire
    At this time, the oxidant comes into play, that is, the electrolyte
    Add the electrolyte slowly, and then change it to a larger container, which will speed up the precipitation. What is precipitated is gold mud (also called sponge gold)

    Step 4: Purification
    Continue to add dilute nitric acid to the precipitated gold mud, heat and purify it with a professional gold melting furnace, turn off the fire and cool down after the water boils, continue to purify a second time after rinsing, and add electrolyte to it again. The electrolyte should exceed the gold mud ( Sponge Gold), any continued heating in the smelting furnace to boiling.
    At this time, the color of the gold we extracted is brown, how to make it golden. In order to shape the golden mud, it must be rinsed several times and kneaded.

    Step 5: Alchemy
    Add borax, which is a fluxing agent here, not gold. Just rinse the surface of the gold and you're done
    Finally, use a musket to dry the moisture in the sponge gold until the sponge gold becomes liquid. 999 pure gold was waiting for us after we waited for cooling down.

    You can operate it according to our method if you are interested. You can contact us if you are interested in buying medicine or an intermediate frequency furnace.
    If you are an unfounded customer, you can contact our professional customer service, and we will provide you with detailed information and professional services.
    More about gold processing、gold bar pls contact:
    Whatsapp:+8613319277356
    Email: 
    chemicals@oremagnetic.com
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