PDF Publication Title:
Text from PDF Page: 066
The elemental distributions for both size fraction of +210-1410 and +1410-4760 μm are given in Figure 5.4 and 5.5. Fig. 5.6 shows that copper and silver exclusively report to the sink product. However, only approximately 20% of the gold can be found in the sink product, while approximately 70% of the gold is present in the materials within the specific gravity of 1.8 to 2.6. The fact that the gold was found in the entire range of the specific gravities studied indicates that the gravity separation for the materials within the size range of +1410-4760 μm is non-feasible, probably due to the high loss of gold. The high loss of the gold is likely to be attributed to its liberation from the non-metallic compounds and its particle size, as well as the flat plate geometry of the gold coating. As for the material with a size range of +210-1410 μm, more than 90% of the copper, silver and iron could be found in the sink as shown in Fig. 5.5. Unfortunately, there was still about a quarter of the gold that could not be concentrated in the sink product. If taking 1.4 as a specific gravity for a heavy liquid, approximately 20% of the floating product can be rejected; meanwhile, more than 90% of the metals studied are able to be recovered in the sink product at the liquid specific gravity of 2.2-2.6. Further studies on a pilot-scale heavy liquid separation of waste printed circuit boards are suggested to further investigate the effect of particle size, heavy liquid materials and its economic feasibility. 5.2.3 Shaking Table As mentioned in the previous section, due to the poor liberation of the valuable metals in the size range of +1410-4760 μm, as well as the size limitation of the shaking table, the materials that were utilized for the shaking table tests were within the size range of +210-1410 μm and -210 μm. Fig. 5.6 presents the product streams on the table. Ideally, low density, small particles, such as fiber glass and silica, will be collected in the tailing. A mixture of high-density small particles and low-density large particles is reported to the middling 1 and middling 2. The dense large particles, such as copper wires, are found in the concentrate stream. Table 5.4 and Table 5.5 present the metal concentrations and recoveries for the -210 μm materials using two table tilts, 0.5° and 0.8°. It is obvious that the concentration ratio increases with the increase of the table tilt. However, the significant decrease in the recoveries of gold, copper and iron occurred as the table tilt increased from 0.5° to 0.8°. Generally, at least 10% of the gold could be lost, which is likely to be explained by the fact that the particle size is so small 53PDF Image | HYDROMETALLURGICAL TREATMENT OF E-SCRAP
PDF Search Title:
HYDROMETALLURGICAL TREATMENT OF E-SCRAPOriginal File Name Searched:
Cui_mines_0052E_11489.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 (Standard Web Page)