BIODIESEL & SVO DISCUSSION FORUMS






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K2SO4
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Just a quick question to you AE guys out there. Does anyone do anything with the salt produced? Is there an industry that uses this salt? Seems fairly easy to separate but not sure what to do with it. Landfill doesn't seem very responsible.
 
Registered: February 25, 2010Reply With QuoteReport This Post
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That's fertilizer farmers call it sulfate of potash.
 
Location: Nimbin Australia | Registered: December 04, 2007Reply With QuoteReport This Post
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Yup that one I knew thanks. Would be great if I could sell it back to the guy that makes the H2SO4 and KOH, though.
 
Registered: February 25, 2010Reply With QuoteReport This Post
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Potassium phosphate is much more valuable as a fertiliser. You use phosphoric acid instead of sulphuric.
 
Location: Scotland | Registered: March 19, 2006Reply With QuoteReport This Post
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Well the problem with that is finding phosphoric acid strong enough to do the acid esterfication. I don't think you can get phosphoric in the 95+% range.
 
Registered: February 25, 2010Reply With QuoteReport This Post
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quote:
Originally posted by Jehu:
Potassium phosphate is much more valuable as a fertiliser. You use phosphoric acid instead of sulphuric.


Have you esterified using phosporic acid? Or were you recommending phosphoric to neutralize the glycerin and split the FFA's?
 
Location: CO, CA, KS, or FL | Registered: January 17, 2009Reply With QuoteReport This Post



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helpinghand..
ditto on your question..

using phosphoric acid for the AE doesn't get you too the K2SO4....where does the SO4 come from.


but if KOH is used during the base stages..and H2S04 on the glycerin..yep you get K2S04..

-dkenny


'84 bluebird school bus, DD8.2L turbo( 4/2011, the bus tranny has died..Frown 8.23.11 bus driven to scrap yard Frown )
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Location: RTP, North Carolina | Registered: December 15, 2004Reply With QuoteReport This Post
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