chemistry to extract gold from pcb

  • How to Extract Gold From Electronics : 11 Steps (with

    Aug 13, 2014· How to Extract Gold From Electronics: In this Instructable, I will show you how to extract gold from computers using products most people have lying around in their homes. The way I extract the gold is relatively straight-forward and pretty easy, but the chemicals used are very dangerou

  • How to Extract the Gold From Computer Circuit Boards Our

    Apr 12, 2017· Computers and other electronic devices contain gold and other precious metals in their circuit boards. As consumers upgrade their electronic gadgets, the precious metals remain trapped in piles of waste. There’s about 0.2 grams (0.007 ounces) of gold in a typical mobile phone handset. Recovery of this gold requires

  • How to extract gold from electronics WIRED UK

    Mar 07, 2014· There's gold in them thar circuit boards -- laptops, phones, cameras and other devices use the precious metal to connect components, and it can be extracted relatively simply

  • Mechanism and Clean Procedure to Extract Gold from Printed

    Jan 01, 2016· Thus the thiourea leaching method is a feasible for extracting gold from the waste printed circuit board.The aim of this work is to analyze the the dissolving mechanism of gold in thiourea solution and thermodynamics of the leaching reactions in order to achieve an environmental way to recover of gold form waste printed circuit board. 2

  • Is Extracting Gold from Printed Circuit Boards Possible

    Extracting gold from a printed circuit board is definitely possible but the amount of the gold in the PCB has to be evaluated first. The process involves a number of steps which have to be carried out carefully in order to get the desired results. There are some instruments and acids involved in the process. Necessary precautions must be taken before starting the procedure.

  • Sustainable technique recovers gold from e-waste cheaply

    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.

  • Extracting gold from computer parts (Part 1) YouTube

    Jul 19, 2016· Today we recover some gold from scrap computer parts. Also I already know I made a mistake and labelled it 3:1 instead of 2:1. oh well. Nile talks about lab

  • Gold Recovery : 8 Steps (with Pictures) Instructables

    Gold is a precious, conductive, and pliable metal that retains a stable value better than many commodities. Its stone properties make it useful for the manufacture of computers parts and electronics. Some people find it profitable to attempt to extract the gold

  • A better way to mine gold from old electronics

    Aug 31, 2016· "The solvent extraction technique is great in that the recycling of reagents and acid are integral to the process," lead researcher Jason Love of UE's School of Chemistry told New Atlas.

  • Step-by-Step Gold Recovery From Circuit Boards

    Jan 21, 2014· Removing the Gold Gold can be removed from circuit boards in a variety of ways. It can be scraped off of the boards by hand, which is time consuming, but yields excellent results. The gold can also be removed via a process known as reverse electroplating, where a stone solution and electricity are used to draw the gold off of the circuit board.


    The results showed that the content of gold varied from 142 to 700 g/ton. The cyanide-based solution was able to extract 88% of the gold, while sodium and ammonium thiosulfate extracted 70 and 75% of the gold, respectively. The electrowinning tests showed a 94% recovery of the gold

  • How to Refine Gold From Electronic Scrap Sapling

    Mar 28, 2017· Gold, silver, platinum and palladium can all be recovered from circuits and processors of electronics. Of all the precious metals, gold is the one most frequently recovered and refined from electronics. Although it is possible to melt the gold plating away from the circuitry, you will cause more of a mess and lose some of the precious metal.

  • Extraction of Tin and Copper by Acid Leaching of PCBs

    Feb 02, 2013· Printed circuit board (PCB) waste is generally dumped as a landfilling or treated pyrometallurgically, which consumes enormous power, generates hazardous gases and also destroys valuable PCB components. For recycling of the components, they must be separated from the printed circuit boards which is a cumbersome task. For its simplification, the rate of dissolution of solder with

  • Extracting Gold HowStuffWorks

    Removing the gold-bearing rock from the ground is just the first step. To isolate pure gold, mining companies use a complex extraction process. The first step in this process is breaking down large chunks of rock into smaller pieces. At a mill, large machines known as crushers reduce the ore to pieces no larger than road gravel.

  • Recover Gold From Computer Parts Extract Gold From

    Q.1: How to recover/ extract gold from computer parts ? Ans.: Computer parts like processors (CPUs), RAMs, motherboards, hard drives, CD/DVD drives have gold and other precious metals like silver palladium etc. Base metals like copper, brass (an alloy), tin, aluminium, lead etc. are also present there. SMPS (power supply), keyboard, cpu-fan doesn’t have gold but there is some silver in

  • How to Use Bleach on Gold Ore to Remove Gold Sciencing

    Apr 24, 2017· Gold is an almost non-reactive metal, but halogens — chlorine, bromine, fluorine and iodine — can dissolve it. Chlorine is the cheapest and lightest product that can achieve this. Bleach is the stone compound sodium hypochlorite. When combined with hydrochloric acid, the mixture produces chlorine that dissolves gold from gold ore.

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

    Mar 01, 2016· Gold is a incredible conductor of electricity, which is why it's used as a coating in a lot of electronics, especially parts where data transfer happens like RAM.

  • Amino acids key to new gold leaching process

    Oct 24, 2014· He says it can be used to more easily extract gold from poly-metallic ores, such as copper-gold ores, by staging the extractions. Amino acids dissolve copper at room temperature, but need to

  • Salvaging Gold From Old Electronics Hackaday

    Nov 18, 2013· but the things they use to extract gold from ore isn’t exactly spring water either Like that chemistry guy who sounds like he’s good at chemistry, make something! and random PCB

  • Is it profitable to recycle gold from electronic devices

    The short answer to the question is: yesthere is profit in recycling gold (and other precious metals) from electronic devices. The longer answer is that it definitely requires resources to get this resource (the old adage, it takes money to make

  • 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.

  • Hydrometallurgical Recovery of Metals from Large Printed

    Sep 29, 2015· The metals present on the PCB are covered by a stone coating 3,20,21.This makes metal recovery complicated because the stone coating inhibits the

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