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  • Gold Flotation Production Line

    Gold Flotation Production Line

    Flotation is widely used in gold Processing. In China, 80% rock gold is Processed by flotation. Flotation…

    Manganese Ore Magnetic Separation Production Line

    Manganese Ore Magnetic Separation Production Line

    Manganese ore belongs to the weak magnetic minerals, which can be recovered by high-intensity magnetic…

    Graphite Ore Beneficiation Process

    Graphite Ore Beneficiation Process

    Xinhai usually applying multi-stage grinding process to protect graphite flake from damaged. Applying…

    Gold Cil Processing Line

    Gold Cil Processing Line

    Gold CIL (Carbon in Leach) Process is an efficient design of extracting and recovering gold from its…

    Cu Pb Zn Dressing Process

    Cu Pb Zn Dressing Process

    Adopting mixed flotation-concentrate regrinding Process can reduce the grinding cost, and be easy to…

    Dolomite Mining Process

    Dolomite Mining Process

    Dolomite mining process is the solution of separating dolomite concentrate from Dolomite raw ore. Based…

    muriatic acid peels gold from circuit boards

  • base vs acid for gold extraction castellobonetti.it

    gold extraction process using muriatic acid / gold extraction process using muriatic acid products Jaw Crusher Xinhai jaw crusher with high production capacity large reduction ratio and high Chat Online. Closed Loop Gold And Silver Extraction By Halogens (Dundee method for gold and silver extraction by halogensby operating the leaching under acidic conditions.base metals

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  • How to Recover Gold from Electronic Scrap Gold N Scrap

    Scrap Circuit Boards Gold Fingers How to Recover Gold from Electronic Scrap Gold Fingers How to Recover Gold from Electronic Scrap. Details Written by Gold N Scrap. If you recall when scrapping computers and other electronic equipment we encounter a lot of peripheral cards which has Gold plated male slot contacts i.e. the fingers. See picture below. (WARNING The process

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  • Stop Using Ferric Chloride Etchant! (A Better Etching

    Stop Using Ferric Chloride Etchant! (A Better Etching Solution.) Ferric chloride is a traditional home use circuit board etchant. It's easy enough to come by and the Ferric by itself is no big environmental problem. However once you've etched a board with it you're left with a solution with a bunch of cop

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  • Biological versus chemical leaching of electronic waste

    Discarded printed circuit boards (PCB) from personal computers (PC) laptops mobile phones and telecom servers were studied. Following an extensive literature review a novel characterization and total metal assay method was introduced and applied to the waste board materials. Discarded PCB contained metals in the range of (% by weight

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  • Alternate Gold Refining Methods Scrap Metal Forum

    3/01/2016· An alternate method to refine gold without Nitric Acid Very good with fingers from computer boards (described here). This method is quite slow compared to using Nitric Acid

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  • How to Refine Gold With Nitric Acid Sciencing

    23/05/2018· Though gold is valuable the most common sources of gold are rarely pure. Whether it is freshly mined gold ore or a refined gold used in jewelry contaminants and unwanted minerals are usually present. Nitric acid can be used to refine gold but you must be careful during the process.

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  • what color will gold turn muriatic acid BINQ Mining

    31/12/2012· Shor International Refining Gold From Circuit Boards . The acid used in this process is muriatic If any gold is still dissolved in the acid the wet spot will turn a purple Rinsing the pure gold The acid »More detailed

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  • still messing with forces I dont understand the formula.

    2/03/2011· The other components HC2H3O2 is acetic acid and yes it gives the characteristic taste and smell to vinegar. It is a relatively weak acid but aids the oxidation reduction reaction between the copper and the hydrogen peroxide by providing a source of H+ ions to solution that are used to form two H2O molecules from one H2O2. I am not sure why it

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  • What is the best material to resist muriatic acid

    11/08/2019· I've seen markers used for designing circuit boards. No idea if that would hold up to muriatic acid but as most of the solution is water and markers tend to resist water dissolve with organic solvents which HCl/Muriatic isn't it could be okay.

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  • Gold Recovery 8 Steps (with Pictures)

    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.

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  • What Happens When You Put Gold in Muriatic Acid? Sciencing

    13/03/2018· Gold is probably the most treasured of the so called precious metals having been used in art and jewelry for centuries and more recently finding applications in medicine coins and elsewhere. Muriatic acid better known today as hydrochloric acid is a simple corrosive liquid with well studied chemical properties.

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  • Refine Gold using Acid Peroxide method Google

    Several ways to do this. Cut off the parts that have gold and discard the others. Use Lye to strip the coatings from on top of the PCB (printed circuit boards) and trim/pluck all the little pins. Dissolve base metals in AP (Acid + Peroxide). Throw your scrap in a bucket then dump some Muriatic and Peroxide in there fish tank bubbler helps too

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  • Refining Gold From Circuit Boards and Electronic Scrap

    Muriatic (also called hydrochloric acid 15% 30% strength) Sodium bicarbonate (baking soda) to neutralize the acid when finished; Tap water and distilled water for rinsing the pure gold; Containers for the boards (most people use 5 gallon plastic buckets) Before refining. Cut off those portions of the board that have gold. Discard the rest

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  • Removing gold from electronics page 3 Finishing

    I want to extract gold from computer circuit boards through subzero aqua regia method. now I want to ask some question. Which is the richest part of gold in PCB? HOW I clean the PCB from excessive or needless things? And in 6 litre of muriatic acid how much subzero is dissolved? please tell me if any one of one you knows. Reply me as soon as

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  • Gold Recovery! You Easily Do It Yourself! Steemit

    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. Step 3 My Scale

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  • How to Extract the Gold From Computer Circuit Boards Our

    Separate the gold plated metal parts in the circuit boards using a magnet. Some gold plated parts may be inside ceramic components. Put on the goggles and gloves. Place all of the recovered circuit parts in one of the glass containers. Use another glass container to mix hydrochloric acid and hydrogen peroxide in the proportion 2 to 1. Pour the

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  • How to remove gold from computer boards #1 gold recovery

    9/01/2014· How to decipher if the board has gold in it and how to remove the gold using chemicals available to everyone!

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  • What Happens When You Put Gold in Muriatic Acid? Sciencing

    3/06/2013· Gold recovery from gold fingers and gold plated boards using the A/P method or Acid peroxide is in my opinion the best way to get started in gold recovery. If

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  • How to remove gold from computer boards #1 gold recovery

    9/01/2014· How to decipher if the board has gold in it and how to remove the gold using chemicals available to everyone!

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  • Here's how I make ferric chloride etchant

    27/08/2009· Hey guys thanks for helping to answer my questions in the past. Here's something some of you may find interesting it's an experimental result of me being poor and being tired of buying more expensive small bottles of ferric chloride etchant from Radio Shack every time I wanted to etch another board. How I Make Ferric Chloride Etchant Ingredients that I use

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  • gold extraction of nitric acid accinsa.co.za

    Apr 23 2017· How easy extraction gold extract gold separation circuit boards computer CPU pins used nitric acid Duration 11:29. Archimedes Channel 50 816 views. Get Price. Gold Parting using Nitric Acid (99+ customer review) The process of parting gold with nitric acid is old and probably dates from the discovery of nitric acid itself; it is one of the simplest parting processes and

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  • Making Your Own Printed Circuit Boards General Guitar

    Making Your Own Printed Circuit Boards. Here are some instructions and notes on fabricating your own printed circuit boards (PCB). Its a messy time consuming job but if you have several boards that you want or if you just have the DIY bug it can be worth the time.

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  • Alternate Gold Refining Methods Scrap Metal Forum

    3/01/2016· An alternate method to refine gold without Nitric Acid Very good with fingers from computer boards (described here). This method is quite slow compared to using Nitric Acid

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  • How to refine gold from scrap circuit boards Quora

    Okay so first off you would recover the gold before you refine it remember recovery and Refining are two completely different processes. To recover anything gold plated to Copper you would use muratic acid and hydrogen peroxide to make copper chl

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  • Gold recovery from BGA caps vith sulfaric acid.

    17/07/2017· In this video I will show you on a small amount of BGA caps and fiber cpu center chips hav to get the gold out using sulfuric acid.

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  • How to Recover Gold from Electronic Scrap Gold N Scrap

    Scrap Circuit Boards Gold Fingers How to Recover Gold from Electronic Scrap Gold Fingers How to Recover Gold from Electronic Scrap. Details Written by Gold N Scrap. If you recall when scrapping computers and other electronic equipment we encounter a lot of peripheral cards which has Gold plated male slot contacts i.e. the fingers. See picture below. (WARNING The process

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  • Gold Recovery Chemicals E waste recycling beginners guide

    14/05/2017· HCl as a gold recovery chemicals Full name of HCl is hydrochloric acid. It is also known as muriatic acid and historic name spirit of salt because it was made from rock salt. It is a colorless and highly pungent solution of hydrogen chloride in water. Its a large usage in industry. Mostly its 32 percentage use in industry and e waste

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  • How to Test Gold With Muriatic Acid eHow

    31/08/2017· Drop a very small amount of muriatic acid (hydrochloric acid) onto the gold using a medicine dropper. Take extra care not to spill or allow any acid to come into contact with your skin to avoid injury. Muriatic acid is a very strong corrosive chemical that can damage surfaces; avoid spilling the chemical onto other items.

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  • Peroxide Acid Method

    the way of pets children and traffic. Twice to three times a day swirl the mix and watch the gold foils begin to peel away from the finger boards. In four or five days all the foils should be loose enough to be washed off with a spray bottle of tap water.

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  • HOW to Recover GOLD from Scrap VERY EASY With Household

    16/03/2018· HOW to Recover GOLD from Scrap VERY EASY No nitric acid needed HD https://twitter /kassimania

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  • 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

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  • Refining Gold From Circuit Boards and Electronic Scrap

    Muriatic (also called hydrochloric acid 15% 30% strength) Sodium bicarbonate (baking soda) to neutralize the acid when finished; Tap water and distilled water for rinsing the pure gold; Containers for the boards (most people use 5 gallon plastic buckets) Before refining. Cut off those portions of the board that have gold. Discard the rest

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  • muriatic acid and peroxide/gold ore refining

    What Happens When You Put Gold in Muriatic Acid? . What Happens When You Put Gold in Muriatic Acid?. Refining Gold From Circuit Boards Electronic Scrap With How to Use Bleach on Gold Ore to Remove

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  • How to Extract Gold From Electronics 11 Steps (with Pictures)

    Back in the 70's I extracted the gold copper and solder from from about a 100Kg of salvaged circuit boards. Even with the thicker gold used in those days I didn't get enough total return to cover the total cost of the processing. As I recall we got more return from the copper and other scrap metals than we did from the gold still not nearly

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  • Muriatic Acid Jewelry Discussion Ganoksin Orchid

    8/09/2016· Muratic acid can be used to etch copper but It will not etch silver. I have tried to find about muriatic acid but all of the I found was for masons and how to use it to clean concrete etc Are there any books that cover acid etching in depth explanig diferent chemicals to use how to use them safly and how to properly dispose of the chemicals

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