Page 1 of 2 12 LastLast
Results 1 to 20 of 21
  1. #1
    2020GoldRush started this thread.
    SMF Badges of Honor

    Member since
    May 2020
    Location
    CALIFORNIA
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Smile Large Scale Gold Extracting from PCBs

    disregard

    Last edited by 2020GoldRush; 05-29-2020 at 06:10 PM.


  2. #2
    kss's Avatar
    SMF Badges of Honor


    Member since
    May 2019
    Location
    PA
    Posts
    673
    Thanks
    300
    Thanked 562 Times in 317 Posts
    Quote Originally Posted by 2020GoldRush View Post
    Everyone on here is familiar with this process -See BBC Gold extraction video on youtube I'm not allowed to
    post links yet) I need to do this on a MUCH larger scale- any tips from anyone on types of equipment to
    purchase, things to avoid, or general info on maximum gold yield for this type of project?


    You'll need about $500k worth of equipment and space, at least, to start, I would think. Then you would also need a steady and large supply of PCBs

    See this vid on youtube, they are doing it at scale. Take notes of all the machinery they have/need. Forklifts, huge commmercial warehouse, large expensive equipment, etc. There are places in china/turkey that do it on even larger scale than this .

    Last edited by kss; 05-29-2020 at 06:12 PM.

  3. The Following User Says Thank You to kss for This Post:

    APA

  4. #3
    jimicrk's Avatar
    SMF Badges of Honor


    Member since
    Sep 2013
    Location
    Tennessee
    Posts
    2,623
    Thanks
    2,780
    Thanked 4,580 Times in 1,750 Posts
    I do enjoy watching gold refining videos but this topic is against forum rules because of the dangers involved.

    Welcome to the forum.

  5. The Following 2 Users say Thank You for This Post by jimicrk:


  6. #4
    kss's Avatar
    SMF Badges of Honor


    Member since
    May 2019
    Location
    PA
    Posts
    673
    Thanks
    300
    Thanked 562 Times in 317 Posts
    Quote Originally Posted by jimicrk View Post
    I do enjoy watching gold refining videos but this topic is against forum rules because of the dangers involved.

    Welcome to the forum.

    yea, the chemicals can kill you! If you need specifics on it, there are many gold refining boards and youtube video. But doing it at scale is like doing anything else at scale. Its a big undertaking and usually pretty expensive to just start doing something at scale. usually you start small and work up to the scale you need to.

  7. The Following 2 Users say Thank You for This Post by kss:


  8. #5
    hills's Avatar
    SMF Badges of Honor


    Member since
    Sep 2017
    Location
    Maine
    Posts
    857
    Thanks
    617
    Thanked 961 Times in 525 Posts
    As with any other kind of investment .... timing is everything.

    Just a guesstimate, but the ideal time to start up a refining operation would have been somewhere around thirty years ago ?

    My sense of things is that chemical refining of PCB's is gradually giving way to a dry process that is more environmentally friendly.

    Last edited by hills; 05-30-2020 at 07:33 AM.

  9. #6
    mthomasdev's Avatar
    SMF Badges of Honor


    Member since
    Apr 2012
    Location
    pittsfield, ma
    Posts
    1,220
    Thanks
    329
    Thanked 1,443 Times in 651 Posts
    Quote Originally Posted by hills View Post
    As with any other kind of investment .... timing is everything.

    Just a guesstimate, but the ideal time to start up a refining operation would have been somewhere around thirty years ago ?

    My sense of things is that chemical refining of PCB's is gradually giving way to a dry process that is more environmentally friendly.

    I believe a chemical process is still required at some point. My understanding is that pins and fingers are gold plated. The gold would need to be dissolved off of the base metal to be recovered.

  10. The Following 2 Users say Thank You for This Post by mthomasdev:


  11. #7
    msmoorad's Avatar
    SMF Badges of Honor


    Member since
    Apr 2013
    Location
    Durban, South Africa
    Posts
    670
    Thanks
    681
    Thanked 740 Times in 352 Posts
    Quote Originally Posted by kss View Post
    You'll need about $500k worth of equipment and space, at least, to start, I would think. Then you would also need a steady and large supply of PCBs

    See this vid on youtube, they are doing it at scale. Take notes of all the machinery they have/need. Forklifts, huge commmercial warehouse, large expensive equipment, etc. There are places in china/turkey that do it on even larger scale than this .


    do u know the name of the company in Turkey that does this

  12. #8
    mikeinreco's Avatar
    SMF Badges of Honor


    Member since
    Dec 2011
    Location
    TENNESSEE
    Posts
    4,590
    Thanks
    1,202
    Thanked 4,749 Times in 2,181 Posts
    Good video but what a shame to see them destroying all those vintage computers....quite a market out there for certain vintage parts

  13. The Following User Says Thank You to mikeinreco for This Post:

    kss

  14. #9
    jimicrk's Avatar
    SMF Badges of Honor


    Member since
    Sep 2013
    Location
    Tennessee
    Posts
    2,623
    Thanks
    2,780
    Thanked 4,580 Times in 1,750 Posts
    I totally agree. This material will need further processing.

  15. #10
    hills's Avatar
    SMF Badges of Honor


    Member since
    Sep 2017
    Location
    Maine
    Posts
    857
    Thanks
    617
    Thanked 961 Times in 525 Posts
    Quote Originally Posted by mthomasdev View Post
    I believe a chemical process is still required at some point. My understanding is that pins and fingers are gold plated. The gold would need to be dissolved off of the base metal to be recovered.
    I would agree. That would be especially so with processors, ram and gold plated connectors.

    Printed circuit boards are a different situation. I was watching the "How It works" documentary and the information seemed awfully dated. They had all of these vintage computers, were tossing ribbon cable in the trash, and burning the boards in a furnace. It was posted to youtube in 2014 and the best info i could get from the IMDB was that it was probably filmed sometime around 2004.

    There have been a lot of advancements in PCB recycling technology since then.

    Slightly off topic, but check out this youtube chemical horror show from India. It gets particularly interesting about 3.15 minutes in. ( Posted to youtube on 10/28/2011 )


  16. #11
    jimicrk's Avatar
    SMF Badges of Honor


    Member since
    Sep 2013
    Location
    Tennessee
    Posts
    2,623
    Thanks
    2,780
    Thanked 4,580 Times in 1,750 Posts
    Quote Originally Posted by hills View Post
    I would agree. That would be especially so with processors, ram and gold plated connectors.

    Printed circuit boards are a different situation. I was watching the "How It works" documentary and the information seemed awfully dated. They had all of these vintage computers, were tossing ribbon cable in the trash, and burning the boards in a furnace. It was posted to youtube in 2014 and the best info i could get from the IMDB was that it was probably filmed sometime around 2004.

    There have been a lot of advancements in PCB recycling technology since then.

    Slightly off topic, but check out this youtube chemical horror show from India. It gets particularly interesting about 3.15 minutes in. ( Posted to youtube on 10/28/2011 )

    I've seen many videos like this and it's a shame people have to work in these conditions. Some people have no choice and they're just trying to feed their families.

  17. #12
    kss's Avatar
    SMF Badges of Honor


    Member since
    May 2019
    Location
    PA
    Posts
    673
    Thanks
    300
    Thanked 562 Times in 317 Posts
    Quote Originally Posted by msmoorad View Post
    do u know the name of the company in Turkey that does this

    Unfortunately no. I had just heard at some point that turkey was overtaking China in Ewaste recycling. I do not know any specifics.

  18. #13
    SMF Badges of Honor

    Member since
    Apr 2012
    Location
    Maple Ridge, BC, Canada
    Posts
    238
    Thanks
    91
    Thanked 294 Times in 117 Posts
    Did not see the video, as the link is already removed.

    However, on a truly large scale PCBs are not processed by chemical means, ever! Chemical processing using acids is only done by small scale refiners.
    The big processors are basically copper smelters. The main ones are Umicore (Belgium), Boliden (Sweden), Glencore (Canada), Metalor, Auribis (Germany), and a few others.
    Boards are shredded, blended, copper content brought up to a minimum value if needed (often by adding higher grade copper scrap), then smelted. The copper acts as a collector for all precious metals. Copper is cast into anodes, and the electrolytically refined. The cathode copper is 99.9+%, ready to market. The precious metals fall to the bottom of the tank, called anode slimes. These are further refined into pure metals. All valuable metals are recovered, regardless of the type of board, etc. These processes are so efficient, there is simply no way to compete with any chemical process using acids, etc. Most places in China, India, Turkey, etc do not have this level of technology.

    If you want to deal with these outfits directly, you need loads of about 40,000 lbs PCBs at a time, on a regular basis. Probably some of the bigger buyers on this forum use some of these outfits.
    Last edited by aurum; 05-31-2020 at 01:36 AM.

  19. The Following 5 Users say Thank You for This Post by aurum:


  20. #14
    hills's Avatar
    SMF Badges of Honor


    Member since
    Sep 2017
    Location
    Maine
    Posts
    857
    Thanks
    617
    Thanked 961 Times in 525 Posts
    I would love to see how it's done at the highest level.

    Imagine the savings on shipping for the bigger buyers on the forum if they could pre-process the boards down to a semi-refined powder using a dry process.

  21. #15
    SMF Badges of Honor

    Member since
    Jul 2011
    Posts
    949
    Thanks
    594
    Thanked 1,371 Times in 422 Posts
    Quote Originally Posted by hills View Post
    I would love to see how it's done at the highest level.

    Imagine the savings on shipping for the bigger buyers on the forum if they could pre-process the boards down to a semi-refined powder using a dry process.
    It's not that simple... $500k is a drop in the bucket to get that type of operation running. To properly and competitively have a PM content recovery process at scale would have a cost of over $20,000,000... you still have to make payroll, do maintenance and have the cashflow to obtain the material and manage inventory... so add another $5 to $10mm.

    Mind you the limited players in that space have absorbed the learning curve and continue to invest into R&D as material feed is constantly evolving.
    Specializing in Maximum value for mixed precious metal printed circuit boards and electronics

    Check out our pricing and read some of our RAVING reviews: http://www.scrapmetalforum.com/scrap...tal-scrap.html
    QUESTIONS? Email us: info@CashForComputerScrap.com
    or Chat with us: www.CashForComputerScrap.com

  22. The Following 10 Users say Thank You for This Post by Ewasted:


  23. #16
    Metairiejunk's Avatar
    SMF Badges of Honor

    Member since
    Jun 2020
    Location
    Louisiana
    Posts
    22
    Thanks
    0
    Thanked 0 Times in 0 Posts
    this is very interesting
    seems like a lot of work

  24. #17
    eesakiwi's Avatar
    SMF Badges of Honor



    Member since
    Dec 2010
    Location
    NZ
    Posts
    2,522
    Thanks
    2,854
    Thanked 2,542 Times in 1,218 Posts
    Quote Originally Posted by Metairiejunk View Post
    this is very interesting
    seems like a lot of work
    To do the scrapping or the refining?
    Scrapmetal is mostly work, thats how you get your $$, you earn it. You take something & add value to it with your time & knowledge. Then sell it.
    The more you know, the more efficient you can make it, the more $$ you get.

    Actual escrap refining? Yep, it's a LOT of work, and intensive work with a huge knowledge curve & time & $$$ investment of many different steps & processes.
    It's also very dangerous, to you, others & assets & your future.

    On the other hand, escraps good work. You can do it at home in a shed of such. Dosnt require that many tools, it's safe(ish) & you can store it easily & for the $$ it doesn't take up that much room. A nice lump $um return too.

    In time you can get contacts to get the stuff from & there's always potential for MTSV ( More Than Scrap Value)
    And you will probably never have to buy a microwave again.
    Last edited by eesakiwi; 06-12-2020 at 01:32 PM.

  25. #18
    APA's Avatar
    SMF Badges of Honor


    Member since
    Mar 2016
    Location
    Western Pennsylvania
    Posts
    602
    Thanks
    621
    Thanked 504 Times in 271 Posts
    Quote Originally Posted by 2020GoldRush View Post
    disregard
    And they are a 1 and done.......

  26. #19
    jimicrk's Avatar
    SMF Badges of Honor


    Member since
    Sep 2013
    Location
    Tennessee
    Posts
    2,623
    Thanks
    2,780
    Thanked 4,580 Times in 1,750 Posts
    Quote Originally Posted by APA View Post
    And they are a 1 and done.......
    Someone watched a Moose The Scrapper video and got gold fever.

  27. The Following 2 Users say Thank You for This Post by jimicrk:


  28. #20
    hills's Avatar
    SMF Badges of Honor


    Member since
    Sep 2017
    Location
    Maine
    Posts
    857
    Thanks
    617
    Thanked 961 Times in 525 Posts
    Ayuh ! They lose interest real fast once they figure out that it's not a get rick quick scheme.

  29. The Following 6 Users say Thank You for This Post by hills:



  30. Similar threads on the Scrap Metal Forum

    1. This thead is a question - What's worth removing from PCBs?
      By GrandHunterMan in forum General Electronics Recycling
      Replies: 13
      Last Post: 05-01-2020, 04:49 PM
    2. PCBS???????????? Projection tv's
      By chowdha in forum Scrap Metal Questions and Answers
      Replies: 19
      Last Post: 04-06-2014, 11:59 AM

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

 
Browse the Most Recent Threads
On SMF In THIS CATEGORY.





OR

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

The Scrap Metal Forum

    The Scrap Metal Forum is the #1 scrap metal recycling community in the world. Here we talk about the scrap metal business, making money, where we connect with other scrappers, scrap yards and more.

SMF on Facebook and Twitter

Twitter Facebook