E-waste precious metal refining system is designed to refine and recover precious metals like gold silver palladium Pd and platinum Pt from electronic waste e-waste like circuit boards including CPU RAM pins and other computer components. E-waste is classified as hazardous material therefore should be managed properly.
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Nov 01 2013 The most common leaching agents for recovery of gold and silver from PCB include cyanide aqua-regia thiosulfate and thiourea. Aqua regia has the highest gold dissolution rate among different leaching agents but it is applied usually in the laboratory scale because of aqua regias strong-oxidation and high-corrosion to the equipment Jing-ying et al. 2012 .
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Apr 12 2017amp 0183amp 32Fill the plastic tray with water to half of its depth place the remaining circuit board scrap in it and rinse. Pour this water through the filter to extract any remaining gold flakes. Flush water over the gold flakes to wash them. Pour the methanol through the filter to wash the gold flakes.
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Introduction of E-waste Precious Metal Refining System. E-waste precious metal refining system is designed to refine and recover precious metals like gold silver palladium Pd and platinum Pt from electronic waste e-waste like circuit boards including CPU RAM pins and other computer components. E-waste is classified as hazardous material therefore should be managed properly.
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Jun 01 2012 The waste circuit board samples of mobile phones used in the leaching were obtained from a local electronics shop in Qingdao China .For experimental use the scraps were shredded using stainless steel blades and pliers after manually removing the main electronic components e.g. capacitors batteries and resistors and then crushed by the sealed universal pulverizer GJ-2 for 8
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The amount of metals in these wastes is 60.6 of which 47.9 is iron and steel 7.0 copper 4.7 aluminum 1.0 non-ferrous 1. Printed circuit boards PCBs are used in many electronic devices .
Description E-waste PCB recycling plant is used to recycle all kinds of printed circuit boards such as the computer boards cell phone boards TV boards copper-clad laminate and other household appliances and the separation of leftover material of the mixed metal and nonmetal materials. With the PLC control system it could make the PCB recycling machine fully automatic with stable
grinding mill to extract pb from scrap circuit board. For circuit board using organic acid can realize circulatory lixiviation and produce electrolytic copper through liquid electrolysis and for circuit board with palladium almost all doublefaced circuit boards has palladium and as base material of copper plating palladium is in guide hole of guide line it also needs to use acid to
Electronic waste recycling system is used for recycling all kinds of PCBWEEE circuit boards computer board TV board aluminum-plastic plate copper board printed circuit boards etc. 1-2tons of circuit boards 305g gold 2kg silver 120kg copper 25kg tin 5kg palladium and 5kg nickel can be obtained from 1 ton of computer circuit board .
Application Areas Computer boards Cell phone boards TV boards Copper-clad laminate. Description E-waste PCB recycling plant is used to recycle all kinds of printed circuit boards such as the computer boards cell phone boards TV boards copper-clad laminate and other household appliances and the separation of leftover material of the mixed metal and nonmetal materials.