***** The Platinumill Exposed and on Trial *****

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you need a valve system so you can feed the propane as liquid from the bottle and flash it to gas at or just before the burner that way your bottle will not freeze.
 
it would flash to gas just before the air port on your burner. I used this before I switched to Kerosene/waste oil.

Jim
 
Now, you sound like a man that knows what he's talking about.
How long does it take kerosene to burn off the sulfides?
 
I do not use it for that, I do some metal casting. I can melt cast iron 10lb in 15 min or so but I have forced air. I mostly melt aluminum and that is
easy as pie. Made my own metal lathe and I am working on a milling machine. Also used to do a little casting of sinker molds for fishing and net weights.

My new job keeps me very busy now so I haven't been able to do any of that for some time now.
 
If I were going to process cats and needed to burn off carbon, sulfide etc
I would use a fluidized bed with heated air that would be easier. Since most of the post I have seen deal with ground up material. And they would let the cat material do a good bit of the work for you.
 
NATURAL GAS
Cost per therm in dollars $ 1.50
Efficiency 80 %

LP GAS
Cost per gallon in dollars $ 2.50
Efficiency 78 %

I didn't say it was cheaper i just said it had more energy output per volume of gas. Here's the cost >>> http://www.npga.org/i4a/pages/index.cfm?pageid=914
 
I'll have to check out my rates here, I dont have a big honkin lp tank laying around, just thought it would be easier to hook up to my house and get after it. I'm working on a more viable solution to this problem, wonder what a steam cleaner would do? shouldnt take too much to knock out the carbons ? l low pressure steam cleaning in the can may do wonders? Frog
 
Separation of platinum group elements:
http://www.uclm.es/profesorado/afantinolo/Docencia/Avanzada/grupo8/Residuo%20Insoluble.pdf
 
james122964 said:
you need a valve system so you can feed the propane as liquid from the bottle and flash it to gas at or just before the burner that way your bottle will not freeze.
Click to expand...


I borrowed a torch like this once. Though it burned alot hotter and longer it would still freeze the tank. We used that one for starting a brush fire in a swamp. I set it at the base of a 20 ft. high pile of green wood and leaves. POOF, 20 minutes later we were raking the ashes, heheheh.
 
Metal ore platinum. Natural State:
http://www.uclm.es/profesorado/afantinolo/Docencia/Avanzada/grupo8/Residuo%20Insoluble.pdf
http://www.uclm.es/profesorado/afantinolo/Docencia/Avanzada/grupo8/menapt.pdf
Elements of the group 9. Cobalt, rhodium and iridium. Preparation and properties:
http://www.uclm.es/profesorado/afantinolo/Docencia/Avanzada/grupo9/Tras_Grupo9.pdf
http://www.uclm.es/profesorado/afantinolo/Docencia/Avanzada/grupo9/grupo_9.htm
Elements of the group 10. Nickel Palladium and platinum. Preparation and properties:
http://www.uclm.es/profesorado/afantinolo/Docencia/Avanzada/grupo10/Tras_grupo10.pdf
http://www.uclm.es/profesorado/afantinolo/Docencia/Avanzada/grupo10/grupo_10.htm
 
Platinum Group Metals, like the related Nickel, react with Carbon Monoxide to form volatile Carbonyl compounds. Heating cats in a reducing atmosphere in the presence of Carbon can and probably will form these volatile compounds that will be lost. Since engines normally run in a CO rich state, these carbonyl PGM compounds are formed over time and cause a loss of the PGMs.

Heating them with a torch will do the same. So, if you wonder where the PGMs went......
 
that is one reason to heat the air and let the cats burn the leftovers plus you would not add any more carbon into the ground cat meal. Fluid bed are fairly easy to build then you would just need a blower and I would use
5 kw of electric heat element to heat the air.

jim
 
Irons said:
Platinum Group Metals, like the related Nickel, react with Carbon Monoxide to form volatile Carbonyl compounds. Heating cats in a reducing atmosphere in the presence of Carbon can and probably will form these volatile compounds that will be lost. Since engines normally run in a CO rich state, these carbonyl PGM compounds are formed over time and cause a loss of the PGMs.

Heating them with a torch will do the same. So, if you wonder where the PGMs went......
Click to expand...

Here I was just going to ask if anybody has considered forming carbonyl compounds to recover PGMs... because that's how the nickel and platinum is recovered from the nickel deposits in Canada. But in terms of loss of PGMs when heating to above 700 degree's (celsius?) I am not too sure about this. I know that metal carbonyls tend to decompose at relatively low temperatures of a couple hundred degree's C. For example Iron carbonyl forms at 110C and decomposes at 200C. According to Webelements.com Platinum Cabonyl decomposes at its melting point of just 25C. So before any CO forms you will be well above the decomposition temperature of the compound.
-Alan
 
Does this mean that I could recover PGMs by heating with the torch and then condensing the exhaust? I know it isn't that simple. Also it seems to me that with the carbon clinging to the honeycomb already that any method of heating could create carbonyls. Would a solvent cleaning be better?

Fix
 
Ok, I give up, tommorow I will steam clean my cats, lts easy,cheap,safe and fast. I will tell ya'll how it works out. It should be simple to get this carbon built up off, its not bonded and infused with the elements and/or the cans.....
 
Ralph,

The honeycomb in the photo has a resistance of greater than 20 Meg Ohms.

For all practical purposes it's an insulator.

Steve
 
fixinator said:
Does this mean that I could recover PGMs by heating with the torch and then condensing the exhaust? I know it isn't that simple. Also it seems to me that with the carbon clinging to the honeycomb already that any method of heating could create carbonyls. Would a solvent cleaning be better?

Fix
Click to expand...

No, because if CO is in contact with the metals above their respective metal carbonyl decomposition temperature then no reaction would take place. As soon as the carbonyl tries to form it would decompose on the spot back into the metal and CO.

-Alan
 

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