RE: fixing the mayonnaise in Tote #1

This may be too late....
Only use enough reactants to neutralize the water. There is 40 gallons of 
water in the fuel. So calculate using the volume of water in the tote. Not 
the total volume of mayo in the tote. Use the mixing lid and let it settle 
for a week or 2. If I am wrong, at least we'll be under the bar and not way 
over. Baby steps.....


>From: Zac Imboden <[email protected]>
>Reply-To: GoBiodiesel Mixmasters <[email protected]>
>To: GoBiodiesel Mixmasters <[email protected]>
>Subject: [mixmasters] fixing the mayonnaise in Tote #1
>Date: Fri, 3 Nov 2006 16:12:10 -0800
>
>I'm planning on trying to fix the mayonnaise in wash tote #1  tomorrow, so 
>we can re-react it if we have to. I'm also planning on  cleaning out the 
>rest of the paraffin from one of the new totes and  using it as a temporary 
>wash tank for the reacted fuel in vessels #1  & #2. We'll also try and make 
>a hundred gallon batch tomorrow, using  the stacked approach for methoxide 
>mixing.
>
>Here is my plan, after talking to Seth, Amanda and consulting fuel- making 
>sources. If any of it looks strange or the peanut gallery  wants to offer 
>suggestions before I go off and deal with this goop,  feel free to comment:
>
>
>1) if not enough lye added to batch - pH below 8 (too acidic)
>     will result in unreacted vegetable oil and methanol
>     titrate liquid with lye
>     figure out volume of liquid in tote
>     figure out quantity of lye to add to full volume
>     transfer goop to reactor
>     heat to 130
>     add lye to re-react (not more methanol)
>     let settle 8 hours
>
>
>2) if too much lye added to batch - pH above 9 (too basic)
>     you will get soap along with a liquid containing: oil, soap and
>      biodiesel
>     titrate sample of liquid with acid to get neutral
>     add enough acid to neutalize the soap (bring pH to 7)
>         Remove thick parts if possible (the soap)
>         Take a homogenous 100ml sample of mayonnaise and test the pH
>          with litmus paper.
>         Add several drops of phenylphalein (pH indicator) to waste
>          water. The solution should turn pink because its basic!
>         In a DRY!! titration cylinder, put in 10 ml of 37% grade HCl.
>          (Be careful with HCl- flammable and very stinky stuff! Check
>          MSD sheet in Brew Book).
>         Slowly add in HCl one drop at a time to mayonnaise while
>          constantly stirring.
>             Frequently test the waste water with pH litmus paper.
>             Wait a full minute after each addition of HCL
>         Keep adding HCl until the pink color goes away and the pH is 7.
>         Amount of HCL used is per 100ml of mayonnaise.
>         Multiply the amount of HCl used by the number of liters of
>          waste water needed to be neutrilized.
>         You might want to shave off .2-.5 ml of HCl per liter so that
>          you avoid putting in too much acid. You can always add HCl in
>          the end if the waste water is still too high.
>         Test the waste water after treatment to make sure pH 7 was
>          achieved.
>
>--------------------------------------------------------------
>Zac Imboden
>[email protected]
>1534 SE 35th Place
>Portland, OR
>97214
>971-563-2477
>
>
>


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