Da Xing waste recycling, plastic waste recycling prices, recycling of plastic waste recycling waste materials provided by the Da Xing. We are Dongguan City of scrap material recycling companies (www.dxhphs.com) located at: Dongguan specializes in: scrap metal recycling, waste plastic recycling, e-waste recycling, industrial waste recycling, building plastics is an important part of home appliances, Table 4 according to the proportion of projections, resulting recycled plastic annually at least 150,000 tons, if we take into account the Waste Electrical and communications equipment, renewable plastic amount of plastic waste recycling agency, the figure of about 20 million tons. The main component of recycled plastic is polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), ABS, etc., the value of the larger recycling; while some thermoset plastics, polyurethane foam, glass fiber reinforced plastic materials relatively difficult to recycle. By determining the material to determine whether it contains a chlorine, but because of a vinyl chloride copolymer, polychloroprene, polyvinylidene chloride, polyvinyl chloride, and so contains a higher proportion of chlorine, but also by the color reaction of pyridine to identify. Note that before the test, the sample must be extracted by ether plastic waste recycling, to remove the plasticizer test methods: by ether benzene had taken samples dissolved in tetrahydrofuran plastic waste recycling project, the insoluble components, methanol was added to make it precipitation of plastic waste recycling prices, after extraction of 75 degrees below the former dry. The dried small sample need not react with 1ml of pyridine, after a few minutes, add 2 drops of 5% methanol in presence of sodium hydroxide solution (1g of sodium hydroxide was dissolved in methanol then 20ml), the color observed immediately look, 5min and 1h were observed once again. According to identify different colors chlorinated plastics.