• A better way to mine gold from old electronics

    Aug 31 2016 · Gold is often found on printed circuit boards particularly under keyboards where its durability is an advantage. According to the UE researchers about 300 tonnes of the metal are used in

  • New polymer easily captures gold extracted from e-waste

    Jun 28 2020 · A new study led by Yeongran Hong of the Korea Advanced Institute of Science and Technology involves a chemical with an impressive affinity for gold. Subject some circuit boards to an acid treatment

  • Checklist of Old Electronic Devices that Contain Gold

    May 26 2017 · The main circuit board from a Sony Betamax (Sony s short-lived laser disk player) is so big it looks like a football field alongside most other circuit boards. Game consolesGranted they contain only a small amount of recyclable gold. But they were manufactured in such large quantities that they are still easy to find at garage sales

  • Checklist of Old Electronic Devices that Contain Gold

    May 26 2017 · The main circuit board from a Sony Betamax (Sony s short-lived laser disk player) is so big it looks like a football field alongside most other circuit boards. Game consolesGranted they contain only a small amount of recyclable gold. But they were manufactured in such large quantities that they are still easy to find at garage sales

  • How to Refine Gold From Electronic Scrap Sapling

    Mar 28 2017 · Cut all of the gold-plated components off the circuit boards. Do not throw the boards away though because there is still silver and other precious metals you may wish to reclaim later. Step 3 Prepare yourself for working with chemicals. You will be using one chemical process to remove the gold plating and another chemical process to refine the

  • How to Refine Gold From Electronic Scrap Sapling

    Mar 28 2017 · Cut all of the gold-plated components off the circuit boards. Do not throw the boards away though because there is still silver and other precious metals you may wish to reclaim later. Step 3 Prepare yourself for working with chemicals. You will be using one chemical process to remove the gold plating and another chemical process to refine the

  • How Much Gold Can You Refine From a Bunch of Old Computer

    Mar 01 2016 · So while it might be a fun if time-intensive trick to strip the gold out of your old computer chips your probably better off just recycling. Source Cody s Lab.

  • Electronics Recycling- Rich Source of Precious Metals

    Oct 10 2019 · The recovery of these precious metals is no small issue. While a modern recycling facility can recover as much as 95 of gold in developing countries the crude dismantling processes employed may recover only 50 of this precious metal. Also if done incorrectly the recovery process can expose workers to a wide range of hazardous substances.

  • Recovering gold from scrap electronics page 1

    2003. a. you can strip the gold by reverse plating i.e. making the job as anode in an electrolytic solution of 90 nacn 15 naoh and 15 sodium meta nitro benzene sulphonate and stainless steel as cathode. gold will deposit on cathode. just peel off the gold and refine in acid mixture of nitric or sulphuric acids or dissolve it aqua regia dilute then add sodium meta bisulphite pure gold

  • How to Recover Gold from e-WastePacebutler Recycling Blog

    So gold can be found in many electronic gadgets especially in the large circuit boards. To separate gold from the devices there are many exclusive methods and there are many companies that deal with extracting the gold from the gold plated devices. Here are some of the general ways for how to recover gold from the electronic devices. 1. Burning

  • Metal reclamation and recycling of electronic waste

    Feb 01 2021 · Outliers include printed circuit boards with 3300 ppm silver and cell phones with 210 ppm palladium. This is significant as this means that in the United States using 2005 data 17 these numbers show that there was up to 1500 tons of gold and 3000 tons of silver in the electronic waste that was disposed of in the U.S.A. in 2005.

  • Gold Hidden in Waste Printed Circuit Boards (WPCBs

    Jan 12 2021 · 3 Lu Y. Xu Z. Precious metals recovery from waste printed circuit boards A review for current status and perspective Resources Conservation and Recycling 2016 13 28-39. 4 Waste

  • Gold Recovery 8 Steps (with Pictures)Instructables

    Put the gold fingers and clean circuit boards in the coffee pot in another container mix two parts muriatic acid and one part hydrogen peroxide and add to the coffee pot until it just covers the gold fingers and wait a week giving it a stir daily. Since I have a week I will move on to processing my solid low grade gold parts.

  • Gold Hidden in Waste Printed Circuit Boards (WPCBs

    Jan 12 2021 · 3 Lu Y. Xu Z. Precious metals recovery from waste printed circuit boards A review for current status and perspective Resources Conservation and Recycling 2016 13 28-39. 4 Waste

  • Recycling Waste Circuit Board Efficiently and

    Nov 29 2019 · Recycling circuit boards. it was quite easy to peel off the whole circuit from the substrate board while only a few elements He Y. Xu Z. Recycling gold

  • Silver Gold Recovery From Computers E-Waste

    How to recover silver and gold from computer parts e-waste chips CPU x-ray films photographic waste aqua regia cyanide solution circuit boards and RAMS. Recovery methods extract or recycle of precious metal like Palladium Silver and Gold.

  • Recycling Waste Circuit Board Efficiently and

    Nov 29 2019 · Recycling circuit boards. it was quite easy to peel off the whole circuit from the substrate board while only a few elements He Y. Xu Z. Recycling gold

  • Sustainable technique recovers gold from e-waste cheaply

    Recycling gold from jewelry or electronic scraps—think computer chips and circuits lined with thin layers of gold—is not without issue either. iron and cobalt found in printed circuit

  • How to Remove Gold from Circuit Boards 12 Steps (with

    Jul 10 2014 · Stir the mixture using a glass rod until the contents become fluid in form. Since gold requires stronger chemicals to be dissolved the nitric acid will melt all the plastic and metal parts of the circuit board without harming the gold bits

  • Gold Bullion Scrap Electronics for sale eBay

    19 Ounces Cell Phone key pad Circuit Boards High Yeild Gold Recovery. 29.99. 14.99 shipping. or Best Offer. 4lbs SCSI SAS SCA Hard Drive PCB Boards for gold recovery 50 more recovery rate. 100.00. 25.00 shipping. or Best Offer. for gold recovery / scrap / Recycling. 27.00. 7.00 shipping. or Best Offer. 35 sold. SCRAP RECOVERED

  • When gadgets become garbage How to recycle electronics

    The circuit boards inside computers contain valuable materials such as gold and silver that can be extracted and reused. These products also contain many valuable materialsaluminum and steel precious metals like gold and rare earth elementsthat can be extracted and reused but only if they re not languishing in the landfill or

  • Salvaging Gold From Old Electronics Hackaday

    Nov 18 2013 · Josehf has a great tutorial for gold recovery up on Instructables for the process that netted him an ounce of gold for three months work. After cutting up a few circuit boards

  • Electronics Recycling- Rich Source of Precious Metals

    Oct 10 2019 · The recovery of these precious metals is no small issue. While a modern recycling facility can recover as much as 95 of gold in developing countries the crude dismantling processes employed may recover only 50 of this precious metal. Also if done incorrectly the recovery process can expose workers to a wide range of hazardous substances.

  • Circuit Board Recycling Disposal AG Electronics Recycling

    Recycling often entails separating and melting down items for their precious metals. Although this is an important part of All Green Electronics Recycling s complete circuit board recycling process we also take the prior step of trying to re-purpose and reuse working circuit boards.

  • Where to Sell Scrap Circuit Boards 8 Scrap Buyers Listed

    Sep 29 2018 · Where to Sell Scrap Circuit Boards. There are a number of scrap circuit board buyers to choose from. To give you an idea of price comparison motherboard prices are included when available. To see the full list of current pricing for each electronic device please click on the links below. Enjoy the list of scrap circuit board buyers.

  • The Ups and Downs of Gold RecyclingBCG Global

    Mar 05 2015 · For example in 2010 gold palladium and silver made up an estimated 93 percent of the value of an end-of-life mobile phone 7 Notes 7 Christopher W. Corti and Christian Hageluken " Recycling of Gold from Electronics Cost-Effective Use through Design for Recycling " Gold Bulletin Volume 43 Number 3 September 2010.. Extracting

  • How Much Gold is in Smartphones and Computers Dell

    Mar 20 2013 · Magann A PC circuit board where the gold is weighs about a pound. If you had a ton of those boards you should have 5 troy ounces of gold. Are there manufacturers that use more gold than others Magann Computer makers don t make their circuit boards because they are commodity items. They buy them from third parties.

  • Introduction to Electronics (E-waste) Recycling

    Feb 05 2021 · Shredding Sorting and Separation After collection and transportation to recycling facilities materials in the e-waste stream must be processed and separated into clean commodities that can be used to make new products.Efficient separation of materials is the foundation of electronics recycling. Shredding the e-waste facilitates the sorting and separation of plastics from metals and

  • Recycling of gold from electronics Cost-effective use

    With over 300 tonnes of gold used in electronics each year end-of-life electronic equipment offers an important recycling potential for the secondary supply of gold. With gold concentrations reaching g/t for mobile phone handsets and g/t for computer circuit boards this "urban mine" is significantly richer than what is available in primary ores.

  • Silver Gold Recovery From Computers E-Waste

    How to recover silver and gold from computer parts e-waste chips CPU x-ray films photographic waste aqua regia cyanide solution circuit boards and RAMS. Recovery methods extract or recycle of precious metal like Palladium Silver and Gold.

  • How to Extract the Gold From Computer Circuit Boards Our

    Apr 12 2017 · Fill the plastic tray with water to half of its depth place the remaining circuit board scrap in it and rinse. Pour this water through the filter to extract any remaining gold flakes. Flush water over the gold flakes to wash them. Pour the methanol through the filter to wash the gold flakes.

  • Current Status on Leaching Precious Metals from Waste

    Jan 01 2012 · Wu H Zhou GM Liu QM et al. Current situation and prospect of printed circuit board recovery and recycling technologies in China. Recyclable Resources and Circular Economy 2009 (10) 34-37. 23 Zheng YY Gu ZH Zheng HJ et al. Investigation of progress on recovery of metals from obsolete printed circuited boards.

  • Recovering gold from scrap electronics page 1

    2003. a. you can strip the gold by reverse plating i.e. making the job as anode in an electrolytic solution of 90 nacn 15 naoh and 15 sodium meta nitro benzene sulphonate and stainless steel as cathode. gold will deposit on cathode. just peel off the gold and refine in acid mixture of nitric or sulphuric acids or dissolve it aqua regia dilute then add sodium meta bisulphite pure gold

  • Metal reclamation and recycling of electronic waste

    Feb 01 2021 · Outliers include printed circuit boards with 3300 ppm silver and cell phones with 210 ppm palladium. This is significant as this means that in the United States using 2005 data 17 these numbers show that there was up to 1500 tons of gold and 3000 tons of silver in the electronic waste that was disposed of in the U.S.A. in 2005.

  • Metal reclamation and recycling of electronic waste

    Feb 01 2021 · Outliers include printed circuit boards with 3300 ppm silver and cell phones with 210 ppm palladium. This is significant as this means that in the United States using 2005 data 17 these numbers show that there was up to 1500 tons of gold and 3000 tons of silver in the electronic waste that was disposed of in the U.S.A. in 2005.

  • Scrap Circuit Boards for sale eBay

    Get the best deals on Scrap Circuit Boards when you shop the largest online selection at eBay. Free shipping on many items VINTAGE CIRCUIT BOARD SCRAP RECOVERY GOLD 15x10" MOSTEK WHITE CERAMIC ICs 1970 s. 19.00. 15.20 shipping. Broken Circuit Boards for Scrap Metal Gold Recovery HP/Del server motherboards.

  • How Much Gold Can Be Recycled from Scrap Electronic Pins

    Jun 09 2014 · The more CPUs you have the more pins you have . . . and the more gold you have too.. Removing the Gold-Plated Pins from Your CPUs. Here s a video that shows a hobbyist using a heat gun to remove gold pins from CPUs.He s using the same kind of heat gun that is used to strip paintthe kind you can buy at a hardware store.

  • Smartphone recycling Feature Chemistry World

    Materials including shredded circuit boards are treated with strong acids. Hydrogen peroxide is added as an oxidising agent followed by thiourea to dissolve gold and silver. In 2015 ResouTech set up a stationary hydrometallurgical recycling plant in Italy. Meanwhile the company also has a mobile plant to recycle precious and rare metals.

  • Recovering Gold and Precious metals from Circuit Boards

    Congratulations you have decided to enter to the amazing world of computer recycling and electronics recycling recovering gold and precious metals from E waste is one of the most interesting and challenging practice in the recycling Industry. All electronic devices contains inside of them circuit boards in this article we will discuss about the most common circuit boards that can be found