please summarize bullet summary 

# tactiq.io free youtube transcript
# Can CPU Gold Be Direct Smelted? Electronics Recycling & Urban Mining For Precious Metals!
# https://www.youtube.com/watch/FaDy-ErJaj4

00:00:00.060 Hey guys, my name is Jason with MountBaker Mining and Metals and on today's
00:00:03.929 video we're gonna be smelting down someof these CPUs and trying to recover the
00:00:07.950 gold out of them. So we've got our CPUshere and I'm sure you guys know a lot
00:00:13.740 more about these than I do but they'rethere's a lot of gold in these I think
00:00:18.330 they're gold plated pins I think there'ssome gold bonding wires inside and we're
00:00:24.000 gonna try and smelt them down and getthe gold out. So I've got four that I'm
00:00:28.380 gonna use. I've weighed them, they weigh105 grams. And the first step is we're
00:00:33.059 gonna crush them down into smallerpieces so we can mix them in our
00:00:36.149 crucible with some flux. And these arethe four chips we're gonna be doing and
00:00:40.370 let me know which which of these has themost gold in, and I think these two are
00:00:45.600 the same, but anyway there's the fourwe're going to be doing. So our first
00:00:49.260 step here is just going to be crush themup, break them up, I'm just gonna hit them
00:00:53.399 with a hammer.They don't have to be dust but you know
00:00:58.590 I probably wanted about quarter inch andsmaller. There you go, that's about as
00:01:05.610 small as we need. I don't know I don'tknow what's got gold on here but we're
00:01:11.670 gonna just melt it all down and see whatwe can recover. All right here's all our
00:01:17.880 chips crushed up, you can kind of seethem close up here. There's that aluminum
00:01:22.560 piece, I'm gonna throw that in there aswell, but there's our chips.
00:01:27.170 So now what makes up our flux and itconsists of three components: there's
00:01:31.380 anhydrous borax, lye and silica sand. Andthese are the same three components I
00:01:36.930 use for smelting ore and I'm just goingto apply them here to smelt in these
00:01:41.130 CPUs down. So I've got them mixed up, Iused 100 grams of borax, 100 grams of lye,
00:01:47.250 and then 50 grams of silica. I've added30 grams of lead as a collector metal
00:01:52.020 and I'm just gonna put them in thefurnace, melt everything down, and hope
00:01:55.649 all the precious metals go to the bottomand we can collect them. Now we got
00:01:58.740 everything in our crucible here we'llget her on our furnace heat her up and
00:02:02.399 melt it all down.
00:03:35.430 Right after our pour there was a bunchof ceramic chips left in the bottom that
00:03:39.970 crucible so here I'm scraping them outand we ended up with, I don't know, maybe
00:03:45.220 10 20 grams of chips and some slagleftover so we'll get these all crushed
00:03:51.010 up and see if we can get them panned outjust with a gold pan and see if there's
00:03:56.200 any precious metals or lead bb's oranything left in there that might be a
00:04:00.220 value. You know we had a littlemicrophone malfunction here but what I'm
00:04:07.660 trying to tell you is when you pour thematerial into this cone mold when it's
00:04:11.709 molten, the very dense material goes downto the bottom of the cone and all the
00:04:16.899 slag floats on top. But all your preciousmetals in your lead collects down the
00:04:21.519 bottom of the cone here, and then onlythe glass and the flux and the slag stay
00:04:26.710 on top. Sp you have two parts you havethe slag on top and then the metal on
00:04:31.750 the bottom. And a little tap of thehammer separates the metal from the slag.
00:04:40.740 And we have our lead and precious metalbutton.
00:04:47.770 So I'm taking our lead button and I'mjust knocking the slag off. So here's our
00:04:55.250 cleaned up button. And all the metalsthat we got molten are in this button, so
00:05:00.889 the aluminum, the copper, the tin, thesilver, gold, lead... And now we'll take it
00:05:06.620 over the cupel furnace and we'll cupel it and oxidize all those base metals
00:05:10.220 away and be left with just the preciousmetals. Alright so here's a little cupel
00:05:14.449 furnace and here's our magnesia cupel. I'm gonna take our lead button and
00:05:21.740 put it right in our magnesia cupel. Andthat's gonna heat up to about
00:05:28.070 1775 degreesFahrenheit. The lead will melt. The oxides
00:05:33.889 that are formed also become molten atabout 1650 degrees
00:05:38.780 Fahrenheit. And once that happens, theoxides will start shedding off that
00:05:43.789 molten lead button and be absorbed bythe cupel. And all the base metal
00:05:48.770 oxides will end up being oxidized andwe'll be left with our precious metal
00:05:53.810 bead at the very bottom.So here's, I'll check on our cupel here...
00:05:59.590 here's our cupel, and the oxides arefloating on top it just came up to
00:06:04.340 temperature so it's not quite there yetbut we'll check back on in five or ten
00:06:09.409 minutes and check and see how it'sdoing. But I keep the door cracked a
00:06:14.810 little bit to let the oxygen circulatein there and we'll just let that
00:06:19.039 reaction take place for a while. We'llcheck on our cupel here... and yeah our lead
00:06:27.259 buttons getting pretty small at thispoint. I found out actually there was a
00:06:32.659 piece of steel that was in our lead andso when the when the steel was floating
00:06:40.130 there on top of our lead button when thelead oxide was touching the steel and
00:06:45.259 the iron in the piece of steel, the leadoxide was converting back to lead metal
00:06:51.080 and then it was oxidizing the iron andthen it had formed an iron coating of
00:06:55.090 rust, essentially, over our buttons. So Ihad to pluck that piece of steel out and
00:06:59.500 now theaction is is continuing in the lead's
00:07:03.259 almost gone so we should have a buttonhere before too long. So here's those
00:07:07.069 little chips and stuff that we had, andwe're going to run it through this
00:07:09.800 little Beco pulverizer and the materialfeeds down here into these between these
00:07:15.559 two discs and just this back disc goesaround, and the material grinds up till
00:07:21.949 it can come out that little slot betweenthe disks. And you can pull these off so
00:07:28.580 you can kind of see material feeds inhere and this disc goes around and it
00:07:33.589 just grinds up on these hardened discsuntil it can come out that little
00:07:37.129 between the two plates.
00:07:51.260 All right so here's our ground-up chipsfrom the crucible and I'm just going to
00:07:56.190 pay on these a little bit here just justto check and see if we have any precious
00:08:01.410 metals, pins, or or little lead bb's orwhatever that didn't come out with our
00:08:08.310 lead collector metal. And so let me justget these panned down a little bit and
00:08:14.520 we'll check and see what we got. Well Igot a little cow magnet here and on the
00:08:21.690 back of one of those CPUs there was achunk of steel and I just threw it in
00:08:27.480 the pot not really thinking and it cameback and bit us in the end but there's a
00:08:33.390 bunch of the little steel pieces andbb's and junk
00:08:38.280 probably ground up from the grinder aswell. But I'm not seeing hard I'm not
00:08:47.730 seeing anything exciting in the pan... gopan down here again... So there's
00:09:08.339 nothing in there for for gold. So I thinkall that shiny stuff is some of those
00:09:15.569 little silicon chips - or what are they, are they silicon? -those little chips in the middle
00:09:20.009 and you know the rest is just littlebits of ceramic and stuff. So hopefully
00:09:27.600 all our gold in our led button in thecupel furnace and we'll see what we
00:09:32.879 can recover. All right I think ourbuttons froze here. So we'll just take it
00:09:50.449 let it cool down some and see what colorit is. You can see some of that iron
00:09:55.559 oxide junk around the edge of the cupel. And so what I might do is I might
00:10:00.329 wait till this cools, pull it out, and geta brand new cupel and then
00:10:06.509 re-cupel it just make sure it's all nice andprecious metal at that point. So there's
00:10:15.559 there's our button, it's real silveryactually surprisingly. I was hoping for
00:10:22.170 gold but we may have enough base metalsin there that I'm gonna get it weighed
00:10:28.110 and then re-cupel it again with aboutanother 20 grams of lead just to see if
00:10:32.429 we can pull out some more thoseimpurities and see if it really is
00:10:35.819 silver in there or if we got gold inthere that just being hidden by base
00:10:39.449 metals. And there's our bead it weighs1.07 grams. So I've got just about 20
00:10:45.300 grams of lead here. I'm gonna put that ina fresh cupel, put our little bead in
00:10:49.199 there and see if we can recover a goldlooking button instead of a silver
00:10:54.990 looking button. All right here we'repulling her out for the second time. Let
00:11:02.970 that cool down and see what color we got.And here's our button after the second
00:11:08.249 cupel it's still silver in color andweighs 1.07 grams so it's exactly the
00:11:15.749 same weight that it was. So we'll take itover and get it
00:11:19.230 XRF-ed and see if we can figure outwhat's in this thing.
00:11:26.560 So there you have it according to theXRF it's about two-thirds silver and
00:11:31.570 about 1/3 gold. So that was a realsurprise to me, I was not expecting to
00:11:35.590 have any silver, I was hoping for prettymuch a pure gold bead. So what do you
00:11:40.450 guys think? Where did all that silvercome from? Were those pins silver with
00:11:44.110 gold plating or was there silver insidethe CPU somewhere? So let me know what
00:11:49.450 you think on that. The other thing that Iwould do differently next time
00:11:52.330 is I would take off that little steeltop piece that I thought was aluminum, I
00:11:56.500 call it aluminum early in the video, butget that out of there that's just junk
00:12:00.850 that we don't want in our smelt and itcaused some problems for us. But I would
00:12:05.050 also take our chips and I'd crush themup with a hammer but then I'd grind them
00:12:07.960 through that little Beko, I don't knowwhat I was thinking, I was, you know,
00:12:11.110 slipped my mind! So if we can get them toa powder form, it might dissolve those
00:12:17.410 those ceramic chips a little bit better,so we can get a complete decomposition
00:12:21.820 of the smelt and recover more metal. Thatbeing said, when I pan it out I didn't
00:12:27.370 see a whole lot of metal in there, it wasmostly just the ceramic stuff, and so I
00:12:31.930 don't think we lost a whole lot ofprecious metals but it's always good to
00:12:35.950 have a complete decomposition of yoursmelt. So those are the things I would do
00:12:40.089 differently. But all that being said, westill recovered a little over three
00:12:44.770 tenths of a gram of gold. So it averages  out to be about 1/10 of a gram per
00:12:49.839 CPU of those four I did. I hope you guysenjoyed the video. Thanks for watching,
00:12:54.490 please let me know what you think andwhat I could do better next time or
00:12:58.330 differently, and if you guys have anyquestions or comments please leave them
00:13:02.050 in the description below. So thanks forwatching and we'll see on the next video