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你的旧电子产品实际上可以提炼黄金
你的旧电子产品实际上可以提炼黄金
在你扔掉旧的笔记本电脑，手机和数码相机里，你可能想考虑去除镀金，发现里面的元素。这里是一个循序渐进的指导你如何在家做提炼黄金。
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你的旧电子产品实际上可以提炼黄金
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第一步：从废料中提取金
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Collect any gold-containing metal scraps to which you have access, including jewelry, computer processors, old telephone wiring or gold tooth crowns. Keep in mind that outdated electronics are likelier to produce parts with a high enough level of gold to make the procedure worthwhile.
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This is the gold I collected in a bucket over three months.
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Sort the gold into circuits that need cleaning, gold plated parts, gold plated pins, gold fingers, and solid gold large and small. Use a magnet to separate all gold plated steel this needs a different process than I am demonstrating.
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Step 2: Stripping the Fingers and Clean Circuits
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Apply all safety gear correctly before working with chemicals and do this outside as the fumes are nasty.
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Put the gold fingers and clean circuit boards in the coffee pot, in another container mix two parts muriatic acid and one part hydrogen peroxide and add to the coffee pot until it just covers the gold fingers and wait a week giving it a stir daily. Since I have a week I will move on to processing my solid low grade gold parts.
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Step 3: My Scale
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My RCBS scale is accurate to 1/10th of a grain when setup right however do not go by the Oz to grain chart on the scale. A grain is a grain however a troy Oz is 1/12th of a troy pound and a regular Oz is 1/16th of a pound so a Troy Oz is 480 grains not 437.5 grains. Setup the scale remembering to zero it by adjusting the screw on the left.
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Step 4: Cupellation
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Cupellation is a process where ores or alloyed metals are treated under high temperatures and controlled operations to separate noble metals, like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal. The process is based on the principle that precious metals do not oxidize or react chemically,
so when they are heated at high temperatures, the precious metals remain apart and the others react forming slags or other compounds. This process has been in use since the Bronze Age and still used today able to raise the gold and silver content to 95%, however the process cannot separate silver from gold, but this is good enough for me.
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Cupellation is simple weigh the solid pieces of low grade gold, burn the crap out of it until you get no more slag and it becomes a nice bright yellow bead, and then you weigh it after it cools.
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My solid low grade gold parts with garbage attached went from 180 grains to 75.9 grains of high grade gold with no garbage attached.
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Step 5: Gold Flakes and Dust
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A week has passed and it is time to collect your gold flakes and dust from your cleaned fingers and circuit boards, after a week the acid darkens and with a stir the flakes of gold can be seen floating around in the pot.
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