Printed Circuit Board Electrolytic Process Solution Separation Characteristics Of Different Mental Research

With the rapid economic development, the development of electronic products is alsoself-evident, However, due to the electronic product life cycles are getting shorter, the electronicsgiant country whose rapid absolute growth rate, Our country is also becoming electronic waste bigcountry, it generated a lot of e-waste., E-waste generally has a complex composition, hazards,high recycling value, and so difficult to handle, Because of the dual nature of electronic waste, notonly contains a lot of resources, there are many pollutants cause harm to humans, So we in theprocess to find a reasonable way, way, try not cause secondary pollution, causing serious waste ofother resources. Recycling Methods reasonable, copper-based recovery of valuable metals, notonly turning waste into treasure, but also to meet environmental requirements.The author of this article to a printed circuit board substrate for the study, Sums up thedomestic and foreign electronic waste metal recovery technology, Based on the analysis of thesubstrate, using electrochemical dissolution study law dissolution of copper and other metals.In this paper, the inductance disaster plasma atomic emission spectrometry (ICP-AEs) weredetermined after the separation of a mixture of metals disassembly of components and circuitboards through the contents of various elements, Depending on the composition and content ofelements in the printed circuit board, we decided to use an electrochemical method to study it onthe basis of its pretreatment.Electrolytic dissolution is an effective method for separating a metal, In an electrolytic cell,the metal powder was dissolved study, experimental results show that the anodic dissolution,Adding copper sulfate, reducing the current density, elevated temperature and stirring rate increasewill help reduce the pressure tank; increase the current density increases with increasingtemperature and dissolved samples.. Optimization of process conditions: current density of200A/m2, stirring speed20rpm, temperature of55℃, Cu2+concentration of0.3mol/L, H2SO4concentration of1mol/L. There are six main dissolved metals. The electrochemical dissolution of the main test of the constant voltage, sulfuric acid loadingcapacity, electrolyte temperature, stirring speed, most from the study of metal dissolution laws.Constant dissolution experiments optimum conditions are obtained: voltage is1.9V, H2SO41.5mol/L, temperature45℃, stirring speed of50rpm; pole pitch5cm.