After the board of old mobile phones, computers destroyed into small pieces, add concentration of 15% to 70% nitric acid solution at high prices lead recycling, water bath and stir. Scrap gold with the substrate surface after shedding lead recovery, heating was stopped, cooled, poured upper solution, the solution containing the Cu, Ag and Pd, etc. may be separated by the addition of sodium chloride extracted, oxalic acid, ammonia and the like. When the end of the container is a mixture of gold foil and the substrate after peeling, to the mixture in the lead recovery flushing agent, stop flushing visible foil slower sedimentation rate than the matrix, the matrix quickly settle to the bottom of the container, and the gold foil suspended in water under gradually Shen, then pour water in the container, the gold flowing out, the substrate remaining in the container. Achieve the recovery of gold, gold from scrap purity of about 99.9%. According to the statistics summary renewable resource recycling network, these days a little rise in the price of scrap tin recycling, which blocks green tin recycling prices for 123-127 (yuan / kg) have risen from last month, up 1 point. The green tin slag prices remained unchanged trend lead recycling plant, prices remain at 112-119 (yuan / kg) also maintained steady state also containing silver tin, silver tin recovery price of 211-219 (yuan / kg) is worth noting that the block containing tin prices have risen, the price is 73-80 (yuan / kg), which rose 0.5 points. Lead recycling plant _ _ East in mind Tangxia lead recycling renewable resources by Dongguan Chang Ping Tung Kee provide renewable resource recycling. Dongguan Chang Ping Tung Kee renewable resource recycling (www.dongji8.com) strong, credible, in Dongguan, Guangdong scrap recycling industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the East in mind renewable resources into the brilliant and you work for a better future!