There are many ways to refine gold, and we will talk about the strong acid separation method today. As the name suggests, it is to separate gold with a very acidic substance. The strong acid separation method can be divided into three types according to different acids: . The nitric acid separation method. Pour the thick nitric acid into the cup, cut the circuit board, CPU, etc. and put it in the cup. Put the cup on the cup frame and heat it with alcohol lamps. Through filtering, sheets can be obtained. The advantage of this method is that the operation is simple, the disadvantage is that the nitric acid is large, and it is vulnerable to people, which will produce toxic gases. . Wang Shui separation method. The configuration method of Wang Shui is a part of nitric acid and three copies of hydrochloric acid. After Wang Shui is configured, put the object to be refined in. After the reaction is over, the filter is filtered, and then heated. Finally, put in copper pieces and replace it. This method is equally simple, but the disadvantage is that the recovery rate is low, because different substances are inside and it is difficult to refine. three, sulfuric acid hydration separation method. First mix sulfuric acid and hydrogen peroxide according to the ratio of one to one to put them in. After the static reaction is over, the color obtained is yellow. The advantage of this method is that the golden purity is high, the response is fast, and it is easy to filter. The disadvantage is that the cost is high, and it will produce waste acid that is not easy to deal with.
old mobile phones and mobile phone batteries contain many metals. After recycling, you can refine gold, silver, copper, cobalt, lithium, and other valuable metals. Used again for industrial production: In surveys, the average 1-ton gold ore dug out of the gold ore can only produce 5 grams of gold, and a ton of abandoned mobile phones can refine gold of more than 150-200 grams, 100 kg copper, 3 kg of silver and other metals. It can be seen that the waste mobile phone computer is indeed a gold mine!
In fact, the computer mobile phone can not only refine metal treatment, but also perform secondary sales and regeneration manufacturing. The replacement of excellent products with a second -hand mobile phone recycling platform, its grading processing method is very environmentally friendly, which improves the ability to decompose, process, and regenerate each component re -use, and effectively improves the circulation utilization rate of electronic resources. The deep processing industry model provides industry templates.
Waste mobile phone recycling can refine gold, how much do you know
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The fire recycling of gold in electronic components This metallurgical technology is the earliest technology that is used in electronic waste to extract precious metals, and it is also the technology that is currently used to recycle money from waste appliances. The principle is to use high temperature to separate the non -metallic and metal objects in the waste appliances in the expensive metal components, and some non -metallic substances turn into a gas -out system; the other part is floating on the upper layer of metal melting materials. Gold and other precious metals form alloys with cheap metals in a melting state. After removing the surface of the surface, the melting alloy is injected into the corresponding mold to cool the corresponding mold, and then the precious metals such as gold are separated by refining or electrolytic processing. Separate each other. The most obvious feature of the fire method is simple craftsmanship, convenient operation and high metal same as precious metals (can reach more than 90 %). But from the perspective of environmental protection, the shortcomings are very obvious. In the metallurgical furnace incineration board and other components, the organic matter incineration in these components generates measures of harmful gases. Most small or individual -owned enterprises have not treated the exhaust gas generated by incineration, and the secondary pollution is serious. Individual enterprises or recycling sources are simply poured on kerosene or gasoline on board and other components to incinerate in the open sky, and the pollution is extremely serious. During the melting process, the glass, ceramics, and unpaid organic objects in the plate stroke of the board to form a large amount of slag to form a large amount of residue, which generates a large amount of difficult to handle secondary solid waste, and increases environmental difficulties. At the same time Causes waste of resources. Another disadvantage of the fire recycling process is that the recovery rate of non -ferrous metals other than precious metals is low, and heavy metals such as low -boiling leads run to the air; energy consumption is large, a large number of organic matter cannot be used comprehensive use, the equipment investment is large, the economy is economically, and the economy is economically. Low benefits. Therefore, there are still many problems with precious metals such as gold with fire metallurgical technology with gold cards and other components that need to be resolved, and it is far from the requirements of harmlessly disposing of electronic waste.
There are many ways to refine gold, and we will talk about the strong acid separation method today. As the name suggests, it is to separate gold with a very acidic substance. The strong acid separation method can be divided into three types according to different acids:
. The nitric acid separation method. Pour the thick nitric acid into the cup, cut the circuit board, CPU, etc. and put it in the cup. Put the cup on the cup frame and heat it with alcohol lamps. Through filtering, sheets can be obtained. The advantage of this method is that the operation is simple, the disadvantage is that the nitric acid is large, and it is vulnerable to people, which will produce toxic gases.
. Wang Shui separation method. The configuration method of Wang Shui is a part of nitric acid and three copies of hydrochloric acid. After Wang Shui is configured, put the object to be refined in. After the reaction is over, the filter is filtered, and then heated. Finally, put in copper pieces and replace it. This method is equally simple, but the disadvantage is that the recovery rate is low, because different substances are inside and it is difficult to refine.
three, sulfuric acid hydration separation method. First mix sulfuric acid and hydrogen peroxide according to the ratio of one to one to put them in. After the static reaction is over, the color obtained is yellow.
The advantage of this method is that the golden purity is high, the response is fast, and it is easy to filter. The disadvantage is that the cost is high, and it will produce waste acid that is not easy to deal with.
old mobile phones and mobile phone batteries contain many metals. After recycling, you can refine gold, silver, copper, cobalt, lithium, and other valuable metals. Used again for industrial production:
In surveys, the average 1-ton gold ore dug out of the gold ore can only produce 5 grams of gold, and a ton of abandoned mobile phones can refine gold of more than 150-200 grams, 100 kg copper, 3 kg of silver and other metals. It can be seen that the waste mobile phone computer is indeed a gold mine!
In fact, the computer mobile phone can not only refine metal treatment, but also perform secondary sales and regeneration manufacturing.
The replacement of excellent products with a second -hand mobile phone recycling platform, its grading processing method is very environmentally friendly, which improves the ability to decompose, process, and regenerate each component re -use, and effectively improves the circulation utilization rate of electronic resources. The deep processing industry model provides industry templates.
Waste mobile phone recycling can refine gold, how much do you know
n00:00 / 02: 4270% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description
The fire recycling of gold in electronic components
This metallurgical technology is the earliest technology that is used in electronic waste to extract precious metals, and it is also the technology that is currently used to recycle money from waste appliances. The principle is to use high temperature to separate the non -metallic and metal objects in the waste appliances in the expensive metal components, and some non -metallic substances turn into a gas -out system; the other part is floating on the upper layer of metal melting materials. Gold and other precious metals form alloys with cheap metals in a melting state. After removing the surface of the surface, the melting alloy is injected into the corresponding mold to cool the corresponding mold, and then the precious metals such as gold are separated by refining or electrolytic processing. Separate each other.
The most obvious feature of the fire method is simple craftsmanship, convenient operation and high metal same as precious metals (can reach more than 90 %). But from the perspective of environmental protection, the shortcomings are very obvious. In the metallurgical furnace incineration board and other components, the organic matter incineration in these components generates measures of harmful gases. Most small or individual -owned enterprises have not treated the exhaust gas generated by incineration, and the secondary pollution is serious. Individual enterprises or recycling sources are simply poured on kerosene or gasoline on board and other components to incinerate in the open sky, and the pollution is extremely serious. During the melting process, the glass, ceramics, and unpaid organic objects in the plate stroke of the board to form a large amount of slag to form a large amount of residue, which generates a large amount of difficult to handle secondary solid waste, and increases environmental difficulties. At the same time Causes waste of resources. Another disadvantage of the fire recycling process is that the recovery rate of non -ferrous metals other than precious metals is low, and heavy metals such as low -boiling leads run to the air; energy consumption is large, a large number of organic matter cannot be used comprehensive use, the equipment investment is large, the economy is economically, and the economy is economically. Low benefits. Therefore, there are still many problems with precious metals such as gold with fire metallurgical technology with gold cards and other components that need to be resolved, and it is far from the requirements of harmlessly disposing of electronic waste.