Methods of refining gold from electronic products include nitric acid separation, aqua regia separation, hydrogen peroxide sulfate separation, and so on. The nitric acid separation method can be used to pour concentrated nitric acid into a beaker and put the metal that needs to be refined into the beaker. After placing the beaker on a beaker rack and heating it with an alcohol lamp, flaky gold can be obtained.
Step 1: Place the fingers in a plastic strainer and prepare some hydrochloric acid, a small solution of copper chloride, and a small stick of sodium chlorideThe air bubbler. Step 2: Put the plastic tube under the filter and put it in the middle position. Step 3: Soak the fingers in a solution of hydrochloric acid and copper. Step 4: Add some more water to make sure all the golden fingers are immersed in the solution.
Electronic products refining gold methods are: first, nitric acid separation method. Pour concentrated nitric acid into the beaker, cut the circuit board, CPU, etc., into the beaker. Place the beaker on a beaker rack and heat it with an alcohol lamp. You filter it, you get flakes of gold. The advantage of this method is simple operation, the disadvantage is that nitric acid is corrosive, easy to hurt people, will produce toxic gas.How much money can be exchanged for the gold chip refining gold '> How much money can be exchanged for the gold chip refining gold on a bank card
A bank card can extract 0.00385175 grams of gold. According to the relevant information, the chip value of a bank card is equal to 55 yuan yuan, 1 yuan =0.002485 grams of gold (1 gram of gold =404 yuan), 100 yuan =0.2485 grams of gold, the above exchange rate data is calculated according to the following latest exchange rate: 2022-12-8 Exchange rate (today), Shanghai Gold Exchange, 1 gram of gold =404 yuanThe renminbi.
A catty sim card can extract 2 grams of gold. The chip on a catty SIM can extract 2 grams of gold, the unit price of gold is 4148 yuan, so the gold value of a catty chip can be 8296 yuan, because 500 bank card chips are a catty, so the gold value of a chip is 64 yuan.
Yuan/jin. 1 catty mobile phone card can refine 0.25 grams of gold, depending on the region, the price will vary. The chip of the mobile phone card is not gold. The gold contained in the mobile phone is generally located on the motherboard and the chip. But the content is very small, a ton of mobile phones can be extracted 150 gramsYes.
The methods of extracting gold from electronic products are: nitric acid separation, aqua regia separation, hydrogen sulfate separation, sodium cyanide hydrogen peroxide method, sodium thiocyanate gold reduction method, 0.1% potassium cyanide 5% hydrogen peroxide gold plating wasteMaterial, wait. Nitric acid separation method Nitric acid separation method is a relatively special gold extraction method, which is suitable for the treatment of items containing gold such as circuit boards and cpus.
The main methods of extracting gold from electronic waste products are water-soluble reaction, melting and chemical decomposition. Among them, the water solution reaction method is the most commonly used method for the extraction of electronic waste gold, which first dissolves other metal components in the electronic waste through chemical solvents, and then uses optical or electrochemical means to separate the metal grains in the electronic waste, followed by washing, drying and other processes, and finally the gold product can be extracted.
Cyaniding process(alkaline leaching method) Leaching specific metals directly from raw materials, that is, soaking the ground electronic waste with sodium cyanide solution and air, adding quick lime or sodium hydroxide to adjust the pH value, so that the gold particles are dissolved in the solution. The solution was separated and replaced with zinc wire, precipitated and acid-washed to obtain coarse gold. Cyanide extraction of gold yield, more than 90%, low cost, simple equipment.