Cobalt

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Cobalt

Post by rainbow » Tue Jan 24, 2023 7:42 am



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Re: Cobalt

Post by aufbahrung » Tue Jan 24, 2023 12:02 pm

Cobalt on the ocean floor. Put them pick miners out of work and make them go find a paying job like a civil war or something?

https://www.engineering.com/story/deep- ... cean-floor
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Re: Cobalt

Post by rainbow » Tue Jan 24, 2023 1:00 pm

I wonder if the fish will care?
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Re: Cobalt

Post by aufbahrung » Tue Jan 24, 2023 8:28 pm

rainbow wrote:
Tue Jan 24, 2023 1:00 pm
I wonder if the fish will care?
If there was a way to make man care about his fellow man then it would have been discovered long ago. Maybe if they'd hung more at Nuremburg the world would be a nicer place today?
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Re: Cobalt

Post by rainbow » Tue Jan 24, 2023 9:06 pm

aufbahrung wrote:
Tue Jan 24, 2023 8:28 pm
rainbow wrote:
Tue Jan 24, 2023 1:00 pm
I wonder if the fish will care?
If there was a way to make man care about his fellow man then it would have been discovered long ago. Maybe if they'd hung more at Nuremburg the world would be a nicer place today?
Hanged if I know.
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Re: Cobalt

Post by rainbow » Sun Feb 05, 2023 10:08 am

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Re: Cobalt

Post by laklak » Sun Feb 05, 2023 10:41 am

Scotty: But Captain, nobody has ever tried a deep space emergency implosion restart of a warp drive before. If we dinna get the intermix temperature exactly right we'll go up like a cobalt bomb!

Spock: 17.5 megatons per engine to be precise, Captain.

Kirk: Thank you Spock. Scotty, do it!

Might not be exact, that's from memory.
Yeah well that's just, like, your opinion, man.

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Re: Cobalt

Post by rainbow » Mon Feb 06, 2023 10:09 am

laklak wrote:
Sun Feb 05, 2023 10:41 am
Scotty: But Captain, nobody has ever tried a deep space emergency implosion restart of a warp drive before. If we dinna get the intermix temperature exactly right we'll go up like a cobalt bomb!

Spock: 17.5 megatons per engine to be precise, Captain.

Kirk: Thank you Spock. Scotty, do it!

Might not be exact, that's from memory.
:prof: Cobalt isn't fissile :prof:
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Re: Cobalt

Post by laklak » Mon Feb 06, 2023 1:49 pm

Well, they said we'd never exceed Warp 8, and look how wrong they were.
Yeah well that's just, like, your opinion, man.

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Re: Cobalt

Post by JimC » Mon Feb 06, 2023 9:58 pm

rainbow wrote:
Mon Feb 06, 2023 10:09 am
laklak wrote:
Sun Feb 05, 2023 10:41 am
Scotty: But Captain, nobody has ever tried a deep space emergency implosion restart of a warp drive before. If we dinna get the intermix temperature exactly right we'll go up like a cobalt bomb!

Spock: 17.5 megatons per engine to be precise, Captain.

Kirk: Thank you Spock. Scotty, do it!

Might not be exact, that's from memory.
:prof: Cobalt isn't fissile :prof:
A cobalt bomb is a type of "salted bomb": a nuclear weapon designed to produce enhanced amounts of radioactive fallout, intended to contaminate a large area with radioactive material, potentially for the purpose of radiological warfare, mutual assured destruction or as doomsday devices.

A cobalt bomb could be made by placing a quantity of ordinary cobalt metal (59Co) around a thermonuclear bomb. When the bomb explodes, the neutrons produced by the fusion reaction in the secondary stage of the thermonuclear bomb's explosion would transmute the cobalt to the radioactive cobalt-60, which would be vaporized by the explosion. The cobalt would then condense and fall back to Earth with the dust and debris from the explosion, contaminating the ground.
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Re: Cobalt

Post by rainbow » Fri Feb 10, 2023 12:35 am

JimC wrote:
Mon Feb 06, 2023 9:58 pm
rainbow wrote:
Mon Feb 06, 2023 10:09 am
laklak wrote:
Sun Feb 05, 2023 10:41 am
Scotty: But Captain, nobody has ever tried a deep space emergency implosion restart of a warp drive before. If we dinna get the intermix temperature exactly right we'll go up like a cobalt bomb!

Spock: 17.5 megatons per engine to be precise, Captain.

Kirk: Thank you Spock. Scotty, do it!

Might not be exact, that's from memory.
:prof: Cobalt isn't fissile :prof:
A cobalt bomb is a type of "salted bomb": a nuclear weapon designed to produce enhanced amounts of radioactive fallout, intended to contaminate a large area with radioactive material, potentially for the purpose of radiological warfare, mutual assured destruction or as doomsday devices.

A cobalt bomb could be made by placing a quantity of ordinary cobalt metal (59Co) around a thermonuclear bomb. When the bomb explodes, the neutrons produced by the fusion reaction in the secondary stage of the thermonuclear bomb's explosion would transmute the cobalt to the radioactive cobalt-60, which would be vaporized by the explosion. The cobalt would then condense and fall back to Earth with the dust and debris from the explosion, contaminating the ground.
Amazing how many people think that natural cobalt is radioactive, when it isn't.
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Re: Cobalt

Post by Svartalf » Fri Feb 10, 2023 8:23 am

too much talk about the uses of Co 60
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Re: Cobalt

Post by Tero » Fri Feb 10, 2023 11:25 am

"The Democratic Republic of the Congo (DRC) currently produces 63% of the world's cobalt. This market share may reach 73% by 2025 if planned expansions by mining producers like Glencore Plc take place as expected. But by 2030, global demand could be 47 times more than it was in 2017, Bloomberg New Energy Finance has estimated."

refining is tedious:
If purifying by electrolysis, an aqueous sulfate solution at 50 to 70 °C is usually used with a lead anode (corrosion products from which will not contaminate the cobalt oxy-hydroxide (CoOOH) electrolyte solution) and a stainless steel cathode which will allow for the easy removal of the deposited cobalt.[5] Electro refining in a chloride or sulfate medium at −0.3 V will make a cathode coating of 99.98% cobalt.

https://en.wikipedia.org/wiki/Cobalt
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Re: Cobalt

Post by rainbow » Fri Feb 10, 2023 1:15 pm

Tero wrote:
Fri Feb 10, 2023 11:25 am
"The Democratic Republic of the Congo (DRC) currently produces 63% of the world's cobalt. This market share may reach 73% by 2025 if planned expansions by mining producers like Glencore Plc take place as expected. But by 2030, global demand could be 47 times more than it was in 2017, Bloomberg New Energy Finance has estimated."

refining is tedious:
If purifying by electrolysis, an aqueous sulfate solution at 50 to 70 °C is usually used with a lead anode (corrosion products from which will not contaminate the cobalt oxy-hydroxide (CoOOH) electrolyte solution) and a stainless steel cathode which will allow for the easy removal of the deposited cobalt.[5] Electro refining in a chloride or sulfate medium at −0.3 V will make a cathode coating of 99.98% cobalt.

https://en.wikipedia.org/wiki/Cobalt
Cobalt recovery is trivial. The biggest hydromet problems are uranium, cadmium, zinc, manganese, copper and nickel.
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Re: Cobalt

Post by Tero » Fri Feb 10, 2023 1:21 pm

We had a guy who went to get a PhD in the middle of his industrial career. Then he came back. All his work had been on electrochemistry for his degree. He would do some of it in the lab on small scale, but was never able to scale up any. As tricky as it is to handle, we preferred to use stuff like hydrogen for organic chemistry.
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