Hai Todd, Thanks for your answers. I did not boil the methanol off, so that's not the problem. The acid is 75% pure. I let it stand overnight and it still didn't separate. Now I have made it warm ( 60¡ C ) and it seems to work. I'll let you know.
To all the members of the groop : I am very happy to have found you. I thought I was the only freak on environment and so, but now with all you I really feel like I have found very good company. Keep going! ( on BD ) Does anyone know anything about producing veg oil with algae ? I read something about it in Josua Tickels' book "From the fryer to the fueltank". In Holland we have lots of greenhouses, but the owners don't make any profit since years. Maybe they can, by producing veg oil ? Met vriendelijke groeten, Pieter Koole Netherlands ----- Original Message ----- From: "Appal Energy" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Saturday, June 21, 2003 3:25 PM Subject: Re: [biofuel] Separating glycerin > Peter, > > You had mentioned previously recovering the alcohol from the glycerin layer. > When recovering the glycerin and FFAs, the alcohol recovery needs to be done > after that step, not before. Otherwise youre' preciptate will not settle (or > at least not until you thin it out with water or alcohol). > > I presume that this is what you may have done, as the 200 ml of phosphoric > (85% purity?) is more than sufficient to achieve the reaction you're looking > for. > > The reaction forms "curdled milk" or "scrambled eggs" instantaneously. > That's the sodium or potassium phosphate. Either wait or take a spoon or > stirring rod and break the curdles up by stirring them into suspension. They > will fall back out as a gritty precipitate. > > While it sounds as if you're borderline on getting the reaction to complete, > which is a good thing, it also sounds as if the 200 ml is a good bit more > than required. Using too much acid acidifies the glycerin, although the > phosphate drops out more quickly. > > Best to use less and agitate several times over a period of an hour or two > (such as in a glass jar with a secured lid) and let the layers separate > slowly overnight. > > Todd Swearingen > > ----- Original Message ----- > From: "Pieter Koole" <[EMAIL PROTECTED]> > To: <biofuel@yahoogroups.com> > Sent: Saturday, June 21, 2003 7:06 AM > Subject: [biofuel] Separating glycerin > > > > Hello, > > I have been trying to separate glycerin and FFA's with 210 ml phosphoric > > acid in 1500 ml of the glycerin layer. > > All that happens is, that the whole lot gets thicker and thicker, but no > > separation at all. > > What am I doing wrong ? The glycerin layer is not really liquid. I would > say > > about as thick as yoghurt. > > I used 4 grams of lye in the BD proces ( in Holland the veg. oil has to be > > refreshed every day, so I am lucky to gather allmost unused oil ) > > > > Met vriendelijke groeten, > > Pieter Koole > > Netherlands > > > > ----- Original Message ----- > > From: "appalenergy" <[EMAIL PROTECTED]> > > To: <biofuel@yahoogroups.com> > > Sent: Friday, June 20, 2003 1:23 AM > > Subject: [biofuel] Re: Thanks for the answers Tod. Here are some more > > questions. > > > > > > > Peter, > > > > > > > > -Is there a way to do a proper titration on this job? > > > > Why titrate? The feedstock is 100% FFAs. > > > > * To detect how much acid I need to do a proper separation. > > > > > > Don't think you can separate 100% FFAs, at least not unless you want > > > to fractionally distill them by carbon chain length. > > > > > > But I gather you mean "how much acid [you] need to do a proper > > > [esterification]?" > > > > > > Durned good question. We've never tried esterification on 100% FFAs. > > > > > > Maria could probably tell you how high a FFA content she's seen > > > processed at University of Idaho. > > > > > > > All oils are "harmfull" to some extent or another, smothering > > > > whatever they cover. Just that veg oil is slightly less toxic than > > > > fossil. > > > > * I understand that, but my question is : Does it damage the > > > roots, the leaves ? Telling people that I have a harmless > > > weedkiller, sounds at least funny. > > > > > > Inhibits photosynthesis. Not systemic, such as Roundup and other > > > chemical types. > > > > > > Todd Swearingen > > > > > > > > > > > > > > > > > > > > > Biofuel at Journey to Forever: > > > http://journeytoforever.org/biofuel.html > > > > > > Biofuels list archives: > > > http://archive.nnytech.net/ > > > > > > Please do NOT send Unsubscribe messages to the list address. > > > To unsubscribe, send an email to: > > > [EMAIL PROTECTED] > > > > > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > > > > > > > > > > > > > Biofuel at Journey to Forever: > > http://journeytoforever.org/biofuel.html > > > > Biofuels list archives: > > http://archive.nnytech.net/ > > > > Please do NOT send Unsubscribe messages to the list address. > > To unsubscribe, send an email to: > > [EMAIL PROTECTED] > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > > > > > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuels list archives: > http://archive.nnytech.net/ > > Please do NOT send Unsubscribe messages to the list address. > To unsubscribe, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get A Free Psychic Reading! 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