gold recovery from mobile

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  A cross-linked polymer inclusion membrane for enhanced gold recovery ...

  202141 · For the recovery of gold, solvent extraction was used. Gurung et al. proposed a tannin-based adsorbent, named bisthiourea - persimmon tannin or “BTU-PT gel”, for the selective recovery of precious metals from the acidic leach liquor of spent mobile phone circuit boards (Gurung et al., 2012).

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  Ultra-high adsorption capacity and selectivity of photo …

  202411 · M 2 S 3 (M Bi and Sb) microspheres have been synthesized and used for gold recovery from e-waste.. Bi 2 S 3 exhibited an exceptional gold adsorption capacity of 3615.45 mg g −1 with the aid of light.. The adsorbents exhibit excellent selectivity for gold and anti-interference capabilities in the treatment of real e-waste. • The adsorbents …

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  Recovery of gold from waste mobile phone circuit boards …

  202165 · The recovery technology of gold from the leachate is the focus of this research. The methods related to the recovery of metals in WPCBs leachate mainly include adsorption, ion exchange, displacement, electrodeposition and solvent extraction (Lu and Xu, 2016, Gurung et al., 2013, Zhang and Dreisinger, 2004, Arima et al., 2002).

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  An O/N/S-rich porous Fe-based metal-organic framework (MOF) for gold ...

  202461 · Recovering gold from wastewater has both economic and environmental benefits. However, how to effectively recover it is challenging. In this work, a novel Fe-based metal-organic framework (MOF) was synthesized and decorated with 2,5-thiophenedicarboxylic acid to have a well-developed porous architecture to effectively …

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  Gold Recovery Process from Primary and …

  Stir stick glass or plastic. Weigh scale mine is accurate to 1/10th of a grain. Blow Torch hot enough to hard solder. Borax. Clay bowls just about anything that has a melting point 500o above the melting point of gold will do. Measuring cup anything you can use to …

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  [PDF] Ammonium thiosulfate extraction of gold from printed …

  202011 · @article{Jeon2020AmmoniumTE, title={Ammonium thiosulfate extraction of gold from printed circuit boards (PCBs) of end-of-life mobile phones and its recovery from pregnant leach solution by cementation}, author={Sanghee Jeon and Carlito Baltazar Tabelin and Ilhwan Park and Yoshito Nagata and Mayumi Ito and Naoki Hiroyoshi}, …

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  Sequential recovery of copper, nickel, gold, silver and zinc …

  2023822 · An organic tertiary amide was shown effective recovery of gold from stage-2 leach solution. The separation of silver from the raffinate of gold SX stage was also achieved by adding copper powder through cementation. ... Selective recovery of gold from waste mobile phone PCBs by hydrometallurgical process. J. Hazard. Mater., 198 (2011), …

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  Covalent organic frameworks constructed by flexible

  20211215 · On the other hand, the generation of electronic waste (e-waste) represented by computers and mobile phones has brought serious environmental and social problems. [4], [5] ... In summary, in order to recover gold from e-waste, we developed a new adsorbent TpTsc COF using flexible alkyl amines as building blocks. The introduction of …

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  Highly efficient and selective extraction of gold by reduced …

  202282 · These gold adsorbents exhibit a high gold extraction capacity at a gold concentration from 500 ppm-3000 ppm 12,13,14,15,16,17,18,19,20,21,22, but this capacity decreases to less than 250 mg/g at a ...

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