PDF Publication Title:
Text from PDF Page: 047
CHAPTER 4 CHARACTERIZATION This chapter summarizes the main analytic techniques, and details the sample preparation as well as characterization of waste printed circuit boards (WPCBs) obtained from Aurubis. Mineral liberation analysis (MLA) of the WPCBs was conducted by the Center for Advanced Mineral and Metallurgical Processing (CAMP), at Montana Tech of the University of Montana. Quantitative evaluation of characterization by scanning electron microscope (QEMSCAN), atomic absorption spectroscopy, and inductively coupled plasma mass spectrometry (ICP-MS), is conducted at Colorado School of Mines. Characterization information may qualitatively and quantitatively guide the methodology to efficiently separate desirable metals from waste printed circuit boards. 4.1 Theories of Analytical Techniques An illustration of theories for the analytical techniques will be helpful to better and more clearly understand and identify the mineralogical information of waste printed circuit boards presented in this dissertation. 4.1.1 Mineral Liberation Analyzer Scanning Electron Microscope (MLA-SEM) The mineral liberation analyzer scanning electron microscope (MLA-SEM) is an automated mineral analysis system that is capable of identifying minerals in polished sections and quantifying a wide range of mineral qualities, such as grain size, mineral association, and abundance. A MLA-SEM system consists of a large specimen chamber automated Scanning Electron Microscope (SEM), multiple Energy Dispersive X-ray detectors, and automated quantitative mineralogy software. Similar to SEM, the MLA analysis requires a proper sample preparation where the sample is prepared as flat polished surfaces, coated with a thin conductive film, usually carbon. Basically, the analysis is performed by combining backscattered (BSE) image analysis with x-ray mineral identification, which generally includes three types of x-ray analytical techniques, point x-ray analysis, area x-ray analysis, and x-ray mapping (Fandrich R. et al., 2007). Identification can be achieved by imaging mineral grains, where the BSE brightness of the minerals are varied; however, particle X-ray mapping can analyze elemental information by 34PDF 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 | RSS | AMP |