Keith, Todd, My statement about the hard white crystals was not to be taken seriously! It was just a gentle way of asking Paddy what the hell he thought he had in the those three quite non-mysterious layers. Diamonds ??????
Michael --- Appal Energy <[EMAIL PROTECTED]> wrote: > Michael, > > Beat's the bejeebers out of anyone here as to what a > crystalline > structure capable of scratching glass would be at > the bottom of a > wash tank. You don't have any dishonest cousins in > the diamond > business do you? > > We've used wash waters that swing 1.0 + or - either > way of > neutral, inclusive of shallow well water, creek > water, brackish > water (sulfonated) city water and distilled, and > such has never > happened here. > > And were it a waxy crystalline structure, there > would be no > scratch potential. Mineral deposits could leave the > appearance or > feel of scratched glass, but > can easily be removed using a mild HCl acid > solution. > > Todd Swearingen > > ----- Original Message ----- > From: Michael Allen <[EMAIL PROTECTED]> > To: <biofuels-biz@yahoogroups.com> > Sent: Tuesday, September 03, 2002 5:24 AM > Subject: Re: [biofuels-biz] some clarification? > > > > Dear Paddy, > > > > >"It's great to get some input from a knowledgable > > > person such as Michael Allen" > > > > Thanks for the ego massage Paddy but it's even > greater > > to have some input from someone with the knowledge > AND > > EXPERIENCE that Todd has! I think that this > > demonstrates the real value of the biofuels-biz > group. > > > > And thanks Todd . . . . . Now about these very > hard > > whitish crystals I get at the bottom of the > wash-tank > > sometimes . . . . they seem to scratch even glass > . . > > . . . could they be . . . . ???? :-) > > > > > > --- Appal Energy <[EMAIL PROTECTED]> wrote: > > > Dear Mr. or Ms. Goat, > > > > > > The contents of the middle layer to which you > refer > > > are largely > > > dependant upon the degree of reaction > completion, > > > the reaction > > > type (acid/base or base) and the processing > steps > > > used > > > (principally in an acid/base). > > > > > > The belief that this layer is primarily soap is > > > largely in error, > > > as soap is soluble in water. However soap does > > > emulsify oily > > > substances. The white layer you refer to is > largely > > > an > > > emulsification. The extent of the emulsification > is > > > greatly > > > dependent upon how well the initial reaction was > > > conducted. > > > Incomplete reactions when blended in 50/50 > ratios > > > with water in > > > 55 gallon lots can result in literally as much > as > > > several feet in > > > depth of emulsification. A complete reaction > should > > > yield no more > > > than a fraction of an inch of an emulsion layer. > > > > > > The three layers yielded from a catalyst > recovery > > > attempt are > > > from bottom to top: A) neutralized catalyst in > > > precipitate form. > > > B) crude glycerin (but not quite so crude as > > > previously) > > > consisting of glycerin, water, discolorants and > > > perhaps excess > > > acid. C) recovered free fatty acids (soaps that > have > > > been broken > > > down by the acid to FFAs) with perhaps a > fraction of > > > soluble > > > alkyl esters. > > > > > > The small alkyl ester fraction will be largely > > > dependant upon > > > your previous separation technique (how much > > > biodiesel is > > > imported into the FFA recovery process) and to > what > > > degree the > > > FFA recovery process is acidified. > > > > > > As the ester fraction should be small to > > > "non-existant," it is > > > almost of no consequence to know that alkyl > esters > > > in either an > > > acid or base environement are continually > reverting > > > between FFA > > > and ester throughout an equilibrium reaction. > > > Chances are that a > > > FFA recovery step will be acidified in slight > excess > > > and all or > > > almost all esters that existed at the beginning > of > > > the process > > > will be non-existant by its end, having reverted > to > > > FFAs. > > > > > > Todd Swearingen > > > > > > ----- Original Message ----- > > > From: goat industries > > > <[EMAIL PROTECTED]> > > > To: <biofuels-biz@yahoogroups.com> > > > Sent: Monday, September 02, 2002 2:40 PM > > > Subject: [biofuels-biz] some clarification? > > > > > > > > > > It's great to get some input from a > knowledgable > > > person such as > > > Michael > > > > Allen - Michael, could you do us a favour and > tell > > > us: > > > > a) what is the major component of the 'creamy' > > > middle layer in > > > the post wash > > > > methyl ester/water mixture that is commonly > called > > > soap? > > > > b) what are the three layers that are formed > when > > > crude, black, > > > glycerine is > > > > neutralised with acid? > > > > Your help would be greatly appreciated! > > > > > > > > > > > > > > > > ------------------------ Yahoo! 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