Film-Tech Forum ARCHIVE: Recycling Tungsten From Xenon Lamps

This is topic Recycling Tungsten From Xenon Lamps in forum Ground Level at Film-Tech Forum ARCHIVE.

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Posted by Rick Cohen (Member # 6140) on 05-15-2019, 01:58 PM:

I was able to get $8.30/lb for 28 lbs of tungsten from 31 6k lamps.

https://www.youtube.com/watch?v=gPf7p7c5jyU&feature=youtu.be

Above is an informative YouTube video I found with a Google search, which demonstrates how to remove all the tungsten from the bulb. Protective eye wear, breathing mask, and leather work gloves are recommended for safety.

The 31 lamps took me about an hour and a half to remove all the tungsten, another half hour for the trip to the scrap yard, so a little better than $115/hr for my trouble.

Definitely call around to different scrap metal dealers, as some pay more than others by a significant amount.

Posted by Jim Cassedy (Member # 4115) on 05-15-2019, 02:24 PM:

Very interesting. The recycling idea never occurred to me. For the safety
of trash workers & dumpster divers, I smash the bulbs before discarding
them, usually by tossing them (in the box) off of a 2nd floor fire escape
into an alley behind the theater.

Back when I ran carbon arcs, is was very common to save the copper
carbon drippings in a coffee can. It accumulated fast. Once or twice
a year, somebody from The Union would come around to collect the
copper, and the proceeds were donated to charity.(Usually the Will
Rogers Children's Hospital, or the Variety Club Children's Charities)

Posted by Randy Stankey (Member # 64) on 05-15-2019, 09:56 PM:

A hammer, a large screwdriver and a burlap bag is all you really need. (Safety gear is a given, of course.)

Put the lamp in the box but remove the clam shell first. Use the screwdriver to puncture the box until you contact the glass envelope of the lamp. Take the hammer and give the screwdriver a good, sharp rap with the hammer. The lamp will shatter and the glass will be contained in the box.

You can use the hammer to crack the glass away from the metal parts. Don't forget steel is recyclable, too.

If your scrapyard doesn't know what your xenon lamp electrodes are, tell them they are the same as TIG welding electrodes. They are almost the same composition... Powder formed tungsten (a.k.a. "Sintered.") There is a little bit of thorium and some flavor of "secret sauce," depending on the manufacturer.

But, still, they are 90% the same as TIG welder electrodes... which most scrapyards DO accept for recycling. They pay a decent price, too.

The last time I recycled xenon lamps, I got almost $50.00 for a dozen lamps. (Including the steel.)