1 thought on “Earthwriting method old mobile phone refining gold”

  1. SummarynStep 1: Remove the mobile phone, take out the circuit board to remove the back cover, and take out the circuit board. Place plastic shells, screens, and other metal parts aside, concentrate the circuit board, and then put them in a large glass reactor container.nStep 2: Follow the line board, discharge toxic gasesnConsultation record · Answer on 2021-04-29nThe first step of refining the golden mobile phone of the earth method: disassemble the phone, take out the circuit board to remove the back cover, and take out the circuit board. Place plastic shells, screens, and other metal parts aside, concentrate the circuit board, and then put them in a large glass reactor container. Step 2: The melting line board, discharged toxic gases with iron pots and water pads on the induction cooker to heat. Put the glass reaction container with a line board into the basin, then pour the prepared concentrated nitric acid into the glass reaction container, and completely immerse the line board. The thick nitrate solution is instantly full of irritating brown -red gases NO2. Therefore, in the process of chemical reactions, three catheters need to be used to deal with this toxic gas. Step 3: Continue to react. After half an hour after a chemical reaction occurs in the glass reaction container, the solution becomes green. In the meantime, in addition to turning the solution, there are many small particles with brilliant crystals in the solution. These small particles are metal insoluble in nitric acid, and most of them are precious metals. In addition to gold, there may be more expensive 钯 than gold. Step 4: Dip removal filtering, metal particles also need to be separated by sufficient chemical reactions, rinse the metal, and then scum and filtrate. At this time, a small particle with glittering crystals appeared in front of the eyes. The golden grains refined by the waste mobile phones seem to be tempting, but the purity is very low. Moreover, the chemical reaction will produce toxic gases -nitric oxide, which has corrosive and physiological stimuli, which will seriously endanger people's health and life. In addition, there is no relevant environmental certification and has not been approved. It is also illegal to open an underground workshop to refine precious metals. Therefore, if we have mobile phones that need to be recycled, we should choose a professional recycling enterprise for processing.

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