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| Rakibul Hasan |
Hello friends today I will introduce you how gold recovery from, icy chips these icy chip samples are industial wastes I.
Have shown an example of removing the IC chip from the electronic circits one kilogram today I will recover all gold from IC chip.
Iuse two liters of sulfuric acid boiled with one kilogram of ice each if you set the temperature of 80 to 90 Celsius.
Where the protective clothing could include gloves protective eyewear a mask a long sleeved shirt and long pants take precautions to avoid exposure by the principle roots that is contact, with skin and ice in elation and ingestion if some gold wires will go with black acid then you can recover.
Them from secind pot after pouring wash carefully icy chip with water three times. I use nitric acid mixed with water ratio 1 to 1 ged rid of the remaining metal.
You will receive a regia gold extraction for gold wire along with piece of fiber use nitric acid and hdrochloric acid mix one two three ratio.
Use sodium metabisulfite precipitate gold out of a aqua regia solution, you will get gold sludge powder then cleaned the gold sediment dried and melted into cubes (Applause).
Sprinkle a little borax powder, recevived 2.3 grams of gold from it chips 1 kilogram materials extracted from various.
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My Bangla Website= www.mijdob.com
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