Tin after tin recovered from recycling of waste materials metallurgical processes resulting hybrid technology, refining waste tin waste miscellaneous materials including scrap iron, tin alloy scrap and hot tin slag containing three categories. Tin-containing iron scrap is low (0.5% to 2%), a large quantity. Tin alloy scrap variety, there are a variety of Pap bearing alloy, fusible alloys, solders (collectively, these three pewter), tin bronze, copper scrap, etc., usually tin 2% to 5% or more, while recovery value of the components of lead, copper, antimony, zinc, etc. contain. Hot tin tin slag containing the highest amount less. Industry generally were recovered from tinplate, tin, pewter, bronze, copper, tin and tin slag waste heat. 2, alkali leaching with hot alkaline solution of tin dissolution process. Adding an oxidizing agent containing copper recovery NaOH180 ~ 200g L solution /, the leaching temperature is controlled at 353 ~ 363K copper recovery dealer, tin tinplate surface generated stannate (Na2SnO4) dissolved out. Has been widely used in the past saltpeter (NaNO3) oxidant copper recovery process, has gradually been nitrobenzoic acid (NO2C6H4COOH) and other organic oxidant instead. The latter has the advantage of speed and copper oxide recovery projects, generating tetravalent tin ions, organic oxidant by oxygen in the air can be regenerated. Immersing the tinplate pieces loaded in the leaching tank apertured drum, tin will be dissolved in alkali solution continuously. Cedar leach solution containing 15g / L when to discharge, then CO2, NaHCO3, Ca (OH) 2 and the like H2SO4 precipitate tin. Tin-containing precipitate obtained by the reduction of metal tin; also available Na2S leachate purification after producing SnO2 compound; electrolytic deposition method can also be used directly to produce electricity tin. Tinplate treated tin 0.04%. Copper recovery agent | Cheonggyecheon copper recovery | East in mind 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!