watson.fawkes
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Active Nickel, not Raney's method
While reading on another topic, I came across the following patent that I imagine others here will be interested in: U.S. Pat. No. 3418258 PRODUCTION OF HIGHLY ACTIVE METALS OF THE IRON GROUP. The basic technique is aqueous-phase oxidation following by reduction
of the metal in a hydrogen furnace. The two examples are nickel powder and sintered, porous nickel plate. The catalytic activity of these materials
can be regenerated by another hydrogen reduction.
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chemrox
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I just found this looking for Raney Nickel. It's very interesting but wouldn't Ni-carbonyl be more costly than porous Ni?
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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aga
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Is 'activated' a general term for 'Huge Surface Area', same as 'Activated Carbon' ?
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chemrox
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Not necessarily. You might also have to reduce it with H2. As in the patent.
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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aga
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What for ? to get a stack of H into the C or to magically 'activate' it ?
What is this 'Activation' ?
It is not Magic : it is some process of transforming the material into a useful form.
This is a Chemistry forum, where amateur (and otherwise) people talk about stuff.
So, what exactly constitutes this supernatural 'Activation' ?
"i don't know" is an acceptable answer.
"do it by this process that i've done myself" is a much much better one.
"look at this magical patent" is just lame.
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HeYBrO
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aga: https://en.wikipedia.org/wiki/Catalyst_support#Activation_of... --> since they are stable, they aren't reactive (some catalyst sites can be
blocked, for instance) so you have to reactivate them so they are catalytically active again.
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chemrox
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Thanks HeYBrO. @aga Please look it up before shooting questions from the hip. You've been around long enough to know better. Were you drunk (again)?
This isn't meant to be hostile as I have posted drunk too.
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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