29 Dec
2010
29 Dec
'10
5:31 p.m.
Does anyone know if tantalum is recovered from electronic waste?
No particular reason for asking, other than pure curiosity.
Thanks,
Chuck
29 Dec
29 Dec
6:58 p.m.
From: cclist at sydex.com
To: cctalk at classiccmp.org
Date: Wed, 29 Dec 2010 17:31:13 -0800
Subject: OT: Scrapper question
Does anyone know if tantalum is recovered from electronic waste?
No particular reason for asking, other than pure curiosity.
Thanks,
Chuck
I don't believe anything is recovered from electronic waste.
It's all put on a boat to China (including the disposal fee) for recovery, and then
ends up in a landfill.
From there, the toxic metals are returned to us in the
form of children's toys.
Randy
9:20 p.m.
Hi Chuck
A previous neighbor was a scrap metal man.
When he got PC boards, he'd cut the tantalums
and gold fingers. Most of the rest he'd toss.
It may have changed some since then. That was
about 15-20 years ago.
I recall he had a number boards with 80C187s
on them. I tried to explain to him that these
where worth more than a box full of these boards
scrapped for gold and tantalums. He never
figured it out though.
Dwight
From: cclist at sydex.com
To: cctalk at classiccmp.org
Date: Wed, 29 Dec 2010 17:31:13 -0800
Subject: OT: Scrapper question
Does anyone know if tantalum is recovered from electronic waste?
No particular reason for asking, other than pure curiosity.
Thanks,
Chuck
30 Dec
30 Dec
4:11 p.m.
New subject: OT: Scrapper question
On Wed, Dec 29, 2010 at 5:31 PM, Chuck Guzis <cclist at sydex.com> wrote:
Does anyone know if tantalum is recovered from
electronic waste?
Yes, tantalum has a good scrap value. The last I sold brought over $5
per pound....and tantalum is heavy. That was about 10 years ago when I
closed out my business.
One of the things I learned was to trim all the tantalum off the
boards before going into the scrap bins. Intel was particularly heavy
users of Tants.
All aluminum had to be stripped from the boards also, and that
included aluminum capacitors. We took all the iron and tin off also.
We were preping boards to go directly to the refiner we had.
Tantalum is magnetic, that is how we sorted the small capacitors.
I don't think many circuit cards goes to China any more, 15 year ago,
that was true.
We also salvaged Beryllium, Mu metal and Alnico. They all brought
significant returns.
There were times we stripped chipsets and sold the chips, not to
mention eproms and processors.
Those were interesting times in Portland town.
Paxton
--
Paxton Hoag
Astoria, OR
USA
7:35 p.m.
New subject: OT: Scrapper question
Yes, tantalum has a good scrap value. The last I sold
brought over $5
per pound....and tantalum is heavy. That was about 10 years ago when I
closed out my business.
Some years back, tantalum was insane. If you had a 1 pound boule (the
pure tantalum, basically), you could take 800 bucks home. Teardrop
tantalum capacitors clipped off boards were reaching 20 dollars a
pound. Remember the great tantalum capacitor shortage? Anyway, things
have normallized, and it is now not really worth clipping them off.
There are some *really* good old tantalum caps to clip as well, but I
am not telling which ones...
I don't think many circuit cards goes to China any
more, 15 year ago,
that was true.
The refineries in Germany are getting good business. I think China is
still buying the junk circuit boards.
--
Will
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