darinventions said:
OK...i watched the video&have concluded that its Another one of those short videos that leave you asking more questions that the video answered...i for one seen (FOUR) mistakes on the first watch an i just woke up an haven't had my coffee yet...Mistake#1--Wear leather gloves while breaking chips(they WILL cut you&hitting them in your bear hand hurts like H$?!) Mistake#2--use a two stage process of A.P. first..to remove visible gold..then crush/hammer the chips into very small pieces&powder an then use A.R. Mistake#3---when pour any solution containing value USE a filter (did you see him pour that junk back in there at the end?) Mistake#4---what is the purpose of adding ice cubes to a contaminated solution that has not been filtered an is not ready for the precipitation process ....
Ok let's address the mistakes you are noticing on the video.
Mistake #1- Breaking up chips.
I'm pretty sure that he did this just for the tutorial of the video and that he does break then up wearing gloves or on top of a hard surface during his regular processing procedures.
Mistake #2- Process using AP(copper chloride) for the first step.
If you use the AP method and you make the mistake that a lot of people make in using too much or to high of a concentration of peroxide you take a greater chance of dissolving some of your gold during the process of eliminating the base metal of kovar the the pins are made of.
If you use copper chloride for this process you run the possibility of the copper in your solution cementing onto the kovar inside of the pins and creating barrier of cemented copper metal that the copper chloride has to redissolve and stalling the process and therefor having to run the process for an extended length of time to redissolve the copper metal.
You would have just as much if not better success in just placing the pins into 32% HCl and boiling the solution. Using straight HCl for this process is better than using AP because you don't run into the chance of dissolving your gold. The peroxide really serves no purpose in this process since you are not dealing with copper.
Mistake #3- Using a filter.
If you will go back and look at his video I think there is a link to the 2nd video that goes along with processing these CPU's where he filters the solution in the 2nd video.
Mistake #4- Adding ice cubes.
This is also covered in his 2nd video and what the purpose was for adding the ice cubes.
He did not make any mistakes in this video IMHO that would bring up any red flags. He used the poor mans AR process for these chips. In doing so he is not dealing with 2 different sets of a waste stream. In having to deal with the first solution for dissolving the base metals and then a 2nd waste stream in dealing with the gold foils dissolved in poor mans AR. He is only having to deal with filtering the gold chloride ( with base metal contamination ) from one type of waste stream. Plus he is not hindered in trying to separate the gold foils from the mix of silver chloride, tin or lead chloride sediments.
