Selective Recovery Of Gold From Electronic Waste

Around 10% of the worldwide annual production of gold is used for manufacturing of electronic devices According to the European Commission, waste electric and electronic equipment is the fastest growing waste stream in the European Union This has generated the need for an effective method to recover gold from electronic waste Here, we report
Gold is widely used in the electronic industry, and with the waste electric and electronic equipment (WEEE) stream generated in the European Union predicted to be over 12 million tons by 2020, an effective recovery method for gold is needed Currently, used gold recovery methods include physical, pyrometallurgical, or hydrometallurgical treatments, or their combinations
26/08/2016 · Although still underdeveloped, the possibility of recovering gold and other noble metals from electronic waste, especially discarded mobile phones is enormous British and American researchers have recently discovered a simple and non-hazardous compound that is capable of selectively extracting gold
The recovery of gold and other noble metals from electronic waste, in particular discarded mobile phones, has enormous potential, but is still underdeveloped
26/08/2016 · The recovery of gold and other noble metals from electronic waste, in particular discarded mobile phones, has enormous potential, but is still underdeveloped British and American scientists have
Selective Recovery of Gold from Electronic Waste Using 3D-Printed Scavenger Article (PDF Available) · October 2017 with 176 Reads DOI: 101021/acsomega7b01215
Gold from Waste: Selective recovery of gold from secondary resources by a simple extraction method The recovery of gold and other noble metals from electronic waste, in particular discarded mobile phones, has enormous potential, but is still underdeveloped
Oct 27, 2017 - generated in the European Union predicted to be over 12 million tons Cite This: ACS Omega 2017, 2, 7299-7304 This is an To find out the impact of 3D printing by the selective laser
1 Introduction Waste of electrical and electronic equipment (WEEE) become an issue of concern primarily due to the exponential increase in their varieties, volumes, and origins , and being a potential source of hazards to the environment and health [4,5]
To highlight the improvement Foley's solution presents, consider that it costs $1,520 to extract one kilogram of gold using aqua regia and results in 5,000 litres of waste
The aim of present study was to develop a modified method of gold recovery from e-waste Selective biosorption of gold from contact point of printed circuit board was achieved by using the combination of ammonium thiosulfate (AT) and Lactobacillus acidophilus (LA)Improvement in biosorption was due to the π-π interaction and resultant change in amide absorption bond between AT and LA, as
15/08/2016 · Iberian Minerals Ltd and Mineworx have recently released a new way to recover gold from e-waste The HM X-leach formula is a proprietary, environmentally-friendly, non-cyanide based leach formula for the extraction of precious metals from ores, concentrates, tailings and electronic waste
30/12/2011 · Selective recovery of gold from waste mobile phone PCBs by hydrometallurgical process Author links open overlay panel Eun-young Kim a Min-seuk Kim b …
This has generated the need for an effective method to recover gold from electronic waste Here, we report a simple, effective, and highly selective nylon-12-based three-dimensional (3D)-printed scavenger objects for gold recovery directly from an aqua regia extract of a printed circuit board waste
Keywords: Gold recovery, Pressure oxidation, Ammonium persulfate, Electronic waste (e-waste) 1 Introduction Recovery of gold from secondary sources has been thoroughly studied in the last few years due to the increase in generation of electronic waste (e-waste) This secondary source contains large quantities of gold and base metals (Cu, Ni,
24/08/2016 · A Simple Primary Amide for the Selective Recovery of Gold from Secondary Resources Euan D Doidge EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, The King's Buildings, David Brewster Road, Edinburgh, EH9 3FJ UK Waste electrical and electronic equipment (WEEE) such as mobile phones contains a plethora of
Request PDF on ResearchGate | Selective recovery of gold, palladium, or platinum from acidic waste solution | End-of-life electrical and electronic equipment is the potential secondary resource
Download Metal Recovery from Electronic Waste : Biological Versus stone Leaching for Recovery of Copper and Gold or any other file from Books category HTTP download also available at fast speeds
Simple method for extracting gold from electrical and electronic wastes using hydrometallurgical process Mohammad Aali Dehchenari1, Saeed Hosseinpoor2, Rahim Aali3*, Nilowfar Salighehdar Iran4, Mohsen Mehdipour5 1BSc of Mechanic Engineering,Young Researchers and Elite Club, Majlesi Branch, Islamic Azad University, Isfahan, Iran 2Instructor of Civil Engineering – Structure, Department of
16/01/2017 · Gold Mines Recycling gold electronic scraps computer cpu chips and circuits E-Waste for Gold gold from circuit boards Gold scrap from electronics, electronic gold scrap recovery #GoldFromE-waste
In comparison to gold ores, electronic waste sometimes carries up to ten time’s higher gold concentrations and estimated as 10–10,000 grams gold per ton (Natarajan and Ting, 2014) Precious metal recovery from e-waste is facing challenges for an appropriate technique for its recovery
Lahtinen, E, Kivijärvi, L, Tatikonda, R, Väisänen, A, Rissanen, K, & Haukka, M (2017) Selective recovery of gold from electronic waste using 3D-printed
In fact, electronic waste is thought to contain as much as 7% of the world’s gold, and up to 300 t of gold is used to produce new electronics every year Much of the waste is simply landfilled The recycling processes which do exist generally use highly toxic cyanide compounds
16/01/2017 · Gold Mines Recycling gold electronic scraps computer cpu chips and circuits E-Waste for Gold gold from circuit boards Gold scrap from electronics, electronic gold scrap recovery #GoldFromE-waste
The traditional way of recycling gold “waste” is melting: dental gold and jewelry can be recycled close to 100 % Recycling of precious metals in smartphones, computers, and other electronic gadgets is much harder, and the recovery quote is still low
The recovery of gold and other noble metals from electronic waste, in particular discarded mobile phones, has enormous potential, but is still underdeveloped
30/10/2018 · Using acidophilic and cyanide-generating bacteria, copper and gold were removed from crushed electronic waste with removal efficiencies of 984 and 440%, respectively The leached metals in solution were recovered using sulfidic precipitation and electrowinning separation techniques
The Recovery of Precious and Base Metals from E-Waste: A Review Amil Memon Final year MTech Student, Environmental Niederkom and Huzar et al (1984) are the pioneers who have worked on gold recovery from used electrical contactors published a technical stone on "Selective Leaching of Valuable Metals such as Cu, Au, Ag, Pd and Pb from
The recovery of metals (gold, tantalum, copper, iron etc) from E-waste has become an important focus The mechanical recycling, thermo-chemical processes like pyrolysis, pyro-, hydro- and biometallurgical processes can play important roles in the Metal Recovery from E-waste (MREW) technology
E-waste like WPCBs, as the major part of waste, is a considerable source of valuable base metals such as gold, silver, and copper In recent years, a large number of base and valuable metal recycling activities from PCBs waste have focused on pyrometallurgy process , Kamberovic, et al Electronic and electrical waste is usually processed using modern methods like pyrometallurgy and

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