Recent content by glondor

Lightarrow. Thank you for your input. You seem to have a good knowlage of what we are trying to accomplish, would you consider looking over this thread here and see if you can shed some light? Thanks Mike http://goldrefiningforum.com/phpBB3/viewtopic.php?f=37&t=5690&start=80

Vitamin c is relatively expensive for this process. I am looking for a way to cut the cost factor and reuse as much as possible. That is a very good link to the patent. Thank you Lightarrow. Not being a chemist it will take me a while to decipher tho...

Can anyone add anything further to this?

I have used Aqua regia to disolve gold, but it is not as selective as I would like for some of the parts I do. I know that iodine will work, I just have not found the method to drop the gold and regenerate the solution for reuse. I know it was used commercially for a while before cyanide...

Many of the parts we work with are plated. Copper, nickel, Kovar base metals that must be removed or separated. Iodine is reported to be selective enough to just remove the gold. I am still looking for a way to "drop" the gold from the Iodine and still be able to reconstitute the Iodine solution...

Thanks for the link Borek. Here is a quote>>>> Originally Posted by Mapes Good point. G01, what is the underlying sample made of? Potassium iodide is another good selective etchant for gold. Yes. In the mean time I have done some research and decided that a 1:2:10 mix of I2, KI, and...

The information I have is partly based on this article>>>>http://webpages.charter.net/kwilliams00/bcftp/docs/halides.htm

Thanks. Yes I believe copper will drop the gold, but it would render the iodine solution infective for further use. I would like to reuse the iodine solution. I am trying to cut down on chem use during the process.

I am working on a pilot project to recover gold from circuit boards. I have tried several methods and am interested in giving iodine a try. I know it will dissolve the gold but I cannot find an answer on how to get the iodine solution to drop the gold. Any ideas? Thanks.

I know telepathy works in a dream state as it has happened to me many years ago. I will tell more if anyone is interested.

That is a very cool model Cyrus. The stealth aspects of it are interesting. Just curious, How do you test it at higher speeds. Are these tests just used to make sure it can take off and land?

The hat's where its at! Did you watch a few Hypatia? There is such a positive vibe to the whole thing. This guy has nailed something lacking and something we all need a little bit of.

I threw up a link in another post about this guy. I thought it would be better if I gave him a post of his own. Check this guy out and throw him some feedback. I was amazed at his skills and his attitude.One super cool dude in my books. link to several vids here, check a few...

I think this guy has got it right, put it out there, have fun, see who buys. Seems to be working for him judging by the comments. Watch a few vids and you will see what I mean. Then buy the cd,lol I did. http://ca.youtube.com/watch?v=EvCaK1_CRCo&feature=channel

Similar damage on this one. Lightening strike. http://www.youtube.com/watch?v=OyOiDQGn-6k&feature=related