Marcel said:
I made an experiment, got me some ideal PCBs from Ebay and this is the amount, that came out for 1 Kg of PCBs.
[youtube]http://www.youtube.com/watch?v=_RBLRKAw6Fs[/youtube]
For those, who have followed this subject in the forum here, the result will be of no suprise.
Enjoy, and if there is anything I could have done better let me know.
Marcel
I do not want this to sound negative or attacking in nature,so if my wording comes out in that way just Know that is not my intent.I am going to try and explain the slight flaws that I saw and how I would have done this test differently.I'll start with the slight flaws and move to how I would have done it.
(1)1000grams of flash plating is in my opinion, not enough to show a great base comparison.
(2)AP=(copper 2 chloride) not CuCl as you stated and 12 percent hydrogen peroxide is really overkill to just get the process started.
(3)If your going to run a test like this,make sure to get a container that can hold the complete content of the test.Less transfers=Less Loss on the data your after.
(4)The charmin plug in this process was another potential Loss factor verses using a multilayer coffee filter(4-6 filters to catch all the fine gold particles that are created). You can always double or triple filter if you suspect the first filtering didn't catch it all.
(5)Gold Foils like to stick to any surfaces when there wet,so hope you super checked the funnel after you pulled the plug out.I used to also use the same method on foils(until I realized how much micro foils were being left behind in the funnel stem).
(6)Gold Foils are Not magnetic,But dry gold foils can get statically charged from static electricity.This will cause the micro foils to stick to what ever surface there dried in.So by using coffee filters instead of plug you create a in closed capture zone instead of an open one.
(7)To stop the foils from blowing,use coffee filter for reason referenced in the latter part of (6). Think back to how Kaddriver takes his gold powders in the wet filter straight to melt,there's no need for drying.
(8)When you use borax in a melt like this,start with half of what you think you need and once you get that fluid you can tell at that point whether or not how much of the rest you'll need.
Hope I did not offend or give you any misinformation in this response.I do Not know everything about refining and am still learning new stuff every day,but I do Know what I have tried and tested works for me and Know that it may or may Not work for yall.
I have to leave for a little while,but Later when I get home tonight I will come back here and post the way I would have done this test for myself and my own personal data base.Thanks in advance for all the hard work and quality that you put into this.
modtheworld44
