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how to refine circuit boards

Liveleak - How To Scrap Electronic Circuit Boards For ...

Aug 22, 2018· To clean a circuit board, try using compressed air. Just hold the can about 3 to 4 inches away from the board and spray the compressed air in short bursts. This should remove grime and other build-up from the board. Alternatively, spot clean your circuit board with isopropyl alcohol.

How to make PCB at Home

Printed circuit boards are not only found in computers; old monitor boards, laptop boards and CPU's (central processing units) they are used in a vast array of different products. Scrap car management systems, boilers, televisions, telecommunication boards, scrap mobile phones, games consoles, all contain printed circuit boards, the list is ...

Recycling gold from scrap PC boards

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 described here involves highly corrosive and toxic chemicals and should only be …

Printed Circuit Board Recycling Methods

4 How To Scrap Electronic Circuit Boards For Gold ... This video is about the first step of recovering gold from ram and other boards that have gold fingers. I show you two methods for removing gold fingers easily. We will also briefly talk about other aspects of god recovery. This is all from eWaste recycling.

Hand Scraping Gold from Circuit boards.... - Gold Refining ...

Sep 06, 2011· Hello I'm interested in Aqua Regis to refine gold. I have unlimited supply of electrical circuit boards, I know you need 70% nitric acid and 32% hydrochloric acid to make Aqua Regis and Urea, distilled water. Can you please help me and tell me how to do the process as I can't find the info anywhere how to do it. Kind Regards Jamie8

Grinding down circuit boards? - Gold Refining Forum

We buy circuit boards from any device and pay you for the precious metals (such as gold, platinum, silver, and palladium) found within them.We buy circuit boards from computers, cell phones, telecommunication equiptment, servers, military equiptment, car electronics and many other sources.

How to refine gold from circuit boards ? - Gold Refining ...

Mar 25, 2008· I was able to find this refinery. They appear to accept anything from raw circuit boards to cleaned/separated chips and connectors,specialtymetalsrefiners. This is the only site that I have found thus far that does this. It appears that you pay a fee (Lot fee + per pound processing fee (decreasing fee tiers for greater weights in tons).

recovering gold from Large circuit boards - Gold Refining ...

Nov 20, 2011· To refine the boards you must prepare them by removing all non gold material, batteries, steel, aluminum etc, why pay to refine stuff that has no gold. If you have a truckload, go to Noranda Smelting in Quebec, they are lowest cost. For small amounts materials use Johnson Matthey. they charge $2 per pound, so clean it well.

Refining Gold Circuit Boards

Jul 13, 2017· A printed circuit board is made of many different materials, the most valuable of which is copper. When you dispose of a printed circuit board, that copper can bleed into the environment through media like wastewater and solid waste. In addition to being damaging to the environment, this is extremely wasteful, as the copper in a printed circuit ...

Fourth grade Lesson Build a Circuit | BetterLesson

Refining Rates and Fees for Circuit Boards. Minimum Lot Size: 5,000 pounds (smaller quantities of higher grade material are accepted) Payable Metals: Gold: 98% Silver: 98% Platinum: 97% Palladium: 97%. Processing Fee: $350.00. Treatment Fee: 5,000 to …

How to refine gold from circuit boards ? - Gold Refining ...

Oct 26, 2017· Challenges to Circuit Board Cleaning. Cleaning printed circuit boards is a very delicate process. When you are working with a printed circuit board, you are dealing with a variety of exposed components and connections that can easily be damaged if you attempt to clean the board improperly. How you will approach cleaning your printed circuit ...

Refining Gold From Circuit Boards and Electronic Scrap ...

A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. A printed circuit board has pre-designed …

How to Clean Circuit Boards: 12 Steps (with Pictures ...

Aug 22, 2018· To clean a circuit board, try using compressed air. Just hold the can about 3 to 4 inches away from the board and spray the compressed air in short bursts. This should remove grime and other build-up from the board. Alternatively, spot clean your circuit board with isopropyl alcohol.

Computer Scrap — Reclaim, Recycle, and Sell your Precious ...

Jul 13, 2017· A printed circuit board is made of many different materials, the most valuable of which is copper. When you dispose of a printed circuit board, that copper can bleed into the environment through media like wastewater and solid waste. In addition to being damaging to the environment, this is extremely wasteful, as the copper in a printed circuit ...

Reclaiming precious metal from circuit boards, etc.

May 14, 2018· I took some stripped cellphone boards that had solder residue all over them, and for experimental purposes, I placed them in the solution that was used (clear blue), and without using any air bubbles, I checked the boards about 4 hours later, and when I swirled the solution it streaked of silver/grey color, and when I pulled up a few of the ...

How to Recycle Printed Circuit Boards | MCL

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. Chips, which have gold inside as well as outside, must be broken open. On a small scale, one tap with a hammer should suffice. With lots of chips, you might want to use a cement mixer.

How to Clean Circuit Boards: 12 Steps (with Pictures ...

Aviation circuit boards; Aviation gold scrap; IMPORTANT: We do not accept whole computers, monitors, power supplies or hard drives or other whole components. Boards must be free of all batteries, cadmium/mercury/beryllium switches, and as much excess metal as …

Gold Refining Forum

Jun 19, 2012· up for learning. I have read many forums and watched many video's and countless of times it has been mentioned that scraping off the gold from Circuit Boards is one of the more efficient but time consuming was to recover the gold. I am trying to gather as much gold as I can before undergoing the big refining shabang.

Guide to Cleaning Printed Circuit Boards

Oct 15, 2009· Here's a bucket of crushed powder that I produced by running circuit boards through a ball mill and sieving it. The leftover small pieces of board that don't crush, but were worn 'clean', get leached in a separate bucket. You can clearly see metallics in …

Gold Fingers - How to Recover Gold from Electronic Scrap

Nov 28, 2010· Azgard, Shor or other kits may just give you trouble's, all the information you need to recover and refine gold you will find, by spending time reading this forum, and getting and reading Hoke's book is where you should start, sorry that we cannot give an easy answer, recovery and refining is so involved it cannot be explained in one post or by answering a few questions, the education is ...

How to Recycle Printed Circuit Boards | MCL

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. Chips, which have gold inside as well as outside, must be broken open. On a small scale, one tap with a hammer should suffice. With lots of chips, you might want to use a cement mixer.

Printed Circuit Board Recycling - AWA Refiners

Sep 06, 2011· Hello I'm interested in Aqua Regis to refine gold. I have unlimited supply of electrical circuit boards, I know you need 70% nitric acid and 32% hydrochloric acid to make Aqua Regis and Urea, distilled water. Can you please help me and tell me how to do the process as I can't find the info anywhere how to do it. Kind Regards Jamie8