PDF Publication Title:
Text from PDF Page: 010
Resources 2014, 3 161 Figure 2. Example of hydrometallurgical recycling of PCBs for the recovery of PMs [41]. Reproduced with permission from [41], 2009. Table 7. Summary of hydrometallurgical recovery of PMs from e-waste. Investigators Park and Fray [41] Sheng and Estell [49] Quinet et al. [50] Chielewski et al. [51] Zhou et al. [52] Kogan [53] Veit et al. [11] Mecucci and Scott [54] Leaching agent Aqua regia HNO3 (1st stage), epoxy resin (2nd stage), and aqua regia (3rd stage) H2SO4, chloride, thiourea and cyanide leaching HNO3 and aqua regia HCl, H SO and NaClO Process conditions Ratio of metals to leachant = 1:20 g/mL Extraction was carried out in the three stages (self agitation) Leaching & metals recovery by cementation, precipitation, ion exchange and carbon adsorption Roasting of e-waste in the presence of carbon; leaching with HNO3 and aqua regia; and solvent extraction with diethyle malonate Combustion of e-waste at 400–500 °C followed by leaching Dissolution of e-waste in different solvents and leaching conditions; and recovery of metals in stages Mechanical processing and then dissolution of e-waste in different solvents Electrochemical deposition of Cu at cathode from solution Recovered metals Au, Ag and Pd Au Au, Ag, Pd and Cu Au Ag, Au and Pd Al, Sn, Pb and Zn (1st stage), Cu and Ni (2nd stage), Au, Ag, Pd and Pt (last stage) Cu Pb and Cu 2 4 3 HCl, MgCl2, H2SO4 and H2O2 Aqua regia and H2SO4 HNO 3PDF Image | Metal Extraction Processes for Electronic Waste
PDF Search Title:
Metal Extraction Processes for Electronic WasteOriginal File Name Searched:
resources-03-00152.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |