[pure-silver] Re: Silver recovery from film
- From: "bonner" <bguil@xxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 26 Apr 2019 08:33:10 -0400
There are usually companies available in most markets that
do silver recovery, buying the film from hospitals and
industry. Might depend on your volume, but you could try to
find online or ask your local xray dept.
Beeg
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
<pure-silver-bounce@xxxxxxxxxxxxx> On Behalf Of Bill Riley
Sent: Friday, April 26, 2019 12:25 AM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] Silver recovery from film
I have a substantial amount of processed B&W negatives that
will eventually be disposed. I would like to remove the
emulsion in batches and recover the siver before I get rid
of the base. Does anyone have any suggestions on emulsion
removal in bulk from film?
Thank you... Bill
On Apr 25, 2019, at 11:10 PM, `Richard Knoppow
<dickburk@xxxxxxxxxxxxx> wrote:
Recovering silver can be done in a couple of ways. I
think a web search will turn some up. The big motion picture
labs used to recover silver and regenerate the fixing baths.
Since in color processing virtually all the silver is
removed from the film a large lab can make a lot of money
from it. A small home darkroom not so much but I have heard
from people who recovered enough to earn enough to make it
practical. Because all the silver is removed from color film
quite a bit more can be gotten than from B&W where some must
be left to form the image. Fixer which has been overworked
to the point where its cloudy will plate clean copper
pennies. Lots in the literature about this.
On 4/25/2019 7:51 PM, Zack Widup wrote:
A friend of mine who was a professional photographer had
a machine that electroplated the silver out. It had some
thin metal disks (stainless steel, I think) that the silver
plated on in a tank full of spent fixer. He would then
remove the disks, flex them and the sheets of silver would
pop off. I think he recovered quite a bit of money doing
that and selling the silver.
Zack
--
Richard Knoppow
dickburk@xxxxxxxxxxxxx
WB6KBL
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