Treatment of the electrical connector scrap gold-plated pieces, old mobile phones, computer motherboards debris, scrap, such as printed circuit boards to put people in a muffle furnace, heated to 450. When C copper recovery agent, burning 1.5h, remove organics copper recovery, after cooling, the original scrap off the surface and the substrate foil copper recovery, to the mixture in the flush, stop flushing visible foil substrate slower sedimentation rate than copper recovery Affiliate matrix quickly settle to the bottom container, while gold was suspended gradually sinking in the water, this time pouring water in the container, the gold flowing out, the substrate remaining in the container. To achieve a recovery of gold from scrap, the residue treated with an acid dissolved in some metallic gold surface to give a purity of about 99% gold. 1. waste plastic recycling: refers Shenzhen plastic waste plastic materials recycling company for the purpose of recycling, waste plastic life, production and other activities generated by the process of collection. 2. waste plastic: refers to all kinds of discarded plastic products and plastic materials, including waste generated in the production of plastics and plastic processing, scrap and defective products. 3. recycled plastic products: refers to the waste plastics as raw materials to produce plastic products and plastic materials. Copper recovery joining Tangxia copper recycling, renewable resources by the East in mind 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!