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Topic: sulfate conversion  (Read 5817 times)

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Offline aeacfm

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sulfate conversion
« on: May 07, 2010, 01:10:09 PM »
is there any way to convert sulfate to other stable ion like sulfide and what is the procedure and conditions

Offline Schrödinger

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Re: sulfate conversion
« Reply #1 on: May 09, 2010, 02:12:43 AM »
All I can come up with are electrochemical methods. I don't even know if it'll work, but that's what struck me first.
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Offline BluRay

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Re: sulfate conversion
« Reply #2 on: May 09, 2010, 07:51:03 AM »
is there any way to convert sulfate to other stable ion like sulfide and what is the procedure and conditions
You can reduce it with Al powder, but you have to be careful...

Offline aeacfm

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Re: sulfate conversion
« Reply #3 on: May 09, 2010, 08:09:25 AM »
thank you all
but how it work with electrochemoical methods
andhow it work with  the Al powder

Offline BluRay

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Re: sulfate conversion
« Reply #4 on: May 09, 2010, 09:30:24 AM »
andhow it work with  the Al powder
If your idea is to make the conversion in solution, then it's not possible. My idea refers to a solid sulfate of something, let's say solid magnesium sulfate, for example. You reduce the sulfate to fine powder, you dry it (heating it, if necessary) the you mix it perfectly with Al powder in stoichometric amounts according to the reaction:

MgSO4 + 2Al  :rarrow: CaO + Al2O3

then you start the reaction in a point with a gas torch and go away because the reaction is higly exothermic.

Offline BluRay

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Re: sulfate conversion
« Reply #5 on: May 09, 2010, 02:04:48 PM »
MgSO4 + 2Al  :rarrow: CaO + Al2O3

Of course it should be:

MgSO4 + 2Al  :rarrow: MgO + Al2O3 + S

Offline aeacfm

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Re: sulfate conversion
« Reply #6 on: May 09, 2010, 03:42:20 PM »
but when i or want to convertr it in solution isnt it possible ?
i read a research on it says conversiobn of sulfate or reduction of sulfate bty what is called thermochemical reduction @ 120 0c
but what are the other ways or what is the conditions of this reaction ?

Offline aeacfm

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Re: sulfate conversion
« Reply #7 on: July 02, 2010, 05:06:22 AM »
All I can come up with are electrochemical methods. I don't even know if it'll work, but that's what struck me first.
i searched the internet for this electrochemical sulfate reduction or enen oxidation but i found nothing i would be gratful if you send me the link

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