Sponsors Biodiesel & SVO Home Biodiesel & SVO Forums Acid Esterification 93% pure sulfuric acid, is this pure enough???
Biodiesel & SVO Home Biodiesel & SVO Forums Acid Esterification 93% pure sulfuric acid, is this pure enough???|
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Would you be referring to the sulfuric acid I have for sale in the classified section? If so, great! If not, the 93% worked for me (which is a guaranteed minimum). I had pretty good oil (5.5 ish) but it always brought the titration down into the 2's and saved KOH. It just took too long and now I'm getting KOH at $.88/lb instead of $4.00/lb from Braintan.
If you assume that the acid contains 7% water and you're adding 1ml of acid per liter of oil processed, we're only talking about .07ml of water added per liter of oil. That is almost exactly one drop... |
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I've used Roebic Drain Flow Inhibited Sulfuric Acid - which is "approx. 90%" H2SO4 according to their MSDS. Worked great dropped my titration 19-22 oil down to 2.
Basically I used the FATTA method and then let it settle for a week or so and drained off the water/acid mixture on the bottom. After running the 2nd half of FATTA as directed (I replaced the volume I drained off with an equivalent volume of methanol) came out great. Washed easily. Ran 60L or oil titration 22 FATTA stage 1 Process 8 hours and settle for a week Drain off 2 L of acid/water FATTA stage 2 but added 2L of "extra" methanol Finished and washed like normal. Process |
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Hey JLKunka, If I were anywhere near the Richmond area I'd be happy to use your acid. I have a guy over here by me that mixes and sells cleaner. He ordered the acid for particular customer and the order never came through. I can get it at wholesale (dirt cheap). Thanks for the info. Jequinn, That's a serious drop. I wish I had time to let my oil settle like that. -mcguyver 2002 Excursion 4 x 4 with a 7.3 liter powerstroke and Several diesel trucks and equipment associated with the arborist field. |
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Hi JE. Thanks for the post. I also have some high FFA oil, though not as high as yours. Just a couple of questions: the original amount of H2SO4 and methanol added to the wvo? What was your process temp? Did you titrate during the 8 hour process time? For stage 2, after draining off the acid/water, how much methanol and NaOH did you add to the process? Thanks and I have some contacts in the Huntsville area that might get you some better quality oil than the 22 FFA, if you are interested. Thanks again for your post. |
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Be carefull about 93%. The remaining can easily be anything that in trace amoounts will offset the transferification reaction.
What color is your acid? Was it in the original can? Must likely, the aid is mixed with water. Not good for fuel manufacturing. |
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i've been using 93% with no problems and great results
Shawn 2006 F-250 6.0l PSD Crew W/ FS BED Runnin' on Homemade B-100 (I mean B-50) This message will self destruct |
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That is an excellent price for KOH...care to share your secret? Regards, Mike Biodiesel disposal units: 1999 Dodge Ram 3500 John Deere 455 tractor |
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no,there still have 98% sulfuric acid and smoke sulfuric acid.
MSN:lillianchem@hotmail.com <a href= "http://www.1stworldtradeportal.com/default.cgi/action/viewproducts/productid/79936/productname/98_Sulfuric_acid_H2SO4_supplier_distributor_exporter_wholesaler/"> acid</a> <a href= "http://www.ec21.com/offer_detail/OF0005526334/Sell_Sulfuric_acid%252FSulphuric_acid%252FH2SO4.html">exporter</a> |
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Sponsors Biodiesel & SVO Home Biodiesel & SVO Forums Acid Esterification 93% pure sulfuric acid, is this pure enough???
Biodiesel & SVO Home Biodiesel & SVO Forums Acid Esterification 93% pure sulfuric acid, is this pure enough???© Maui Green Energy 2000 - 2008