Interesting! Does it always form? And is heating and neutralizaing the usual way of getting to it?
Thanks Christian ----- Original Message ----- From: "Ken Provost" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Tuesday, April 30, 2002 1:10 PM Subject: Re: [biofuel] what could it be? > Christian writes: > > > > >So I suddenly forced pH too low, but in the meantime, big flocks of > >something like > >waxes or thick creamy greasy looking things started forming in the > >mixture. When > >I finished the heating, and adding some NaOH solution to return to > >pH 7, the remaining > >liquid was a mixture of glycerin and water below (probably + soluble > >salts), and > >something atop which looked like very dark brown biodiesel. > > > The dark liquid is called "acidulated soapstock", and is almost > entirely free fatty acid. > (FYI -- Crude oleic acid made this way is also known as "red oil".) > This is the stuff I've been > playing with for a couple weeks now. You can try to esterify it to > biodiesel with acid catalyst, > you can throw it on the nearest dirt road to keep the dust down, you > can turn it into soap, > you can react it with Ca(OH)2 to form the calcium salt which you can > then feed to your > pigs or dairy cattle as a ruminally inert fat booster, etc, > etc....Many people nowadays are > frantically looking for wonderful uses for the stuff. Let us know > what you find. > > Seriously, tho, what you're doing is great -- FFAs are basically the > final effluent you > have to deal with after neutralizing everything else. They're fairly > strong herbicides, > so you really don't want to just toss 'em in the compost with the > aqueous phase. > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > 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/ > > > ______________________________________________________________________________ mensaje enviado desde http://www.iespana.es emails (pop)-paginas web (espacio ilimitado)-agenda-favoritos (bookmarks)-foros -Chat ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4 and no minimums. FREE Money 2002. http://us.click.yahoo.com/orkH0C/n97DAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html 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/
