25 lbs cpu's

[goaldspektre]

Just want to thank everyone for sharing their knowledge.I used all the techniques i've learned on the forum and squeezed a lot of gold from 25 lbs of ceramic cpu's this week.I still have the lids to process and will definitely use Steve's cell input for those

 

[jimdoc]

Did you take any pictures?
Did you take notes on the yields?

Jim

 

[goaldspektre]

No pics or yield data because the chips were all different,48 grams Au total before doing the lids.There were 120 486's(6lb),4 lbs Pentium/Cyrix/Amd mix with the heavy brazing on the "lids" and the rest were pentiums from the nineties.I used HCL/CL to dissolve the base metals and Ar to dissolve the gold.I've used nitric in the past but it's too expensive now for removing base metals so I save it for Ar.I'm doing 13 pentium pros next and expect around 4 grams more Au from those.