On 2005-02-04 16.30, "Legal Eagle" <[EMAIL PROTECTED]> wrote:
Hi Luk, thanks a lot, but I'm not getting anywhare.... > > >> I have recently processed 4 separate 1 litre batches in my kitchen using 2 > different off the shelf brands of fresh rape oil. I dissolved 3,5 grams of > 100% NaOH in 2 dl methanol (racing fuel) shaking the mix and then leaving > over night and at the time of introducing the methoxide into the oil >I > could > see no undissolved particles. I measured the NaOH on a 1g kitchen digital > scale measuring the grains in 4 different heaps on some aluminium foil > (zeroing the scale to compensate) so that when the scale went from 3 to 4 > grams I could half the last little pile to get app 3,5 g. The methanol was > measured in a graded beaker. The oil was heated to 54¡c and the methoxide > added at that temperature in a blender which did the mixing for 15 minutes, > temperature was not maintained in the blender. The mixture was then decanted > into a glass jar to settle. After about 1/2 hour 2 distinct layers formed - > however it took one week before the top layer became clear. > >> Should it really take this long to clear? > > > You don't have to wait until the top layer is competely clear before > washing. It will still have suspended particles in it anyway. > > All in all I was quite pleased with the result until I washed some of the > first sample which has been settling for more than a month now. > > I took 3 dl clear oil and mixed it in a jar with 1 dl tap water a bit > colder > than room temperature, I am guessing at around 15¡c. I just shook the jar > for maybe 2 minutes. > >> When you wash tested the sample you didn't use enough water. >> http://journeytoforever.org/biodiesel_vehicle.html#quality My updialed connection is there a lot - costs me a fortune - tell you what - Kieth for president! But I have done it all right I thought. Allright - good one, no harm done then? > The whole sample turned white and not much happened > after I placed it to settle in room temperature at app 18¡c. The next > morning there were 3 layers. Clear water at the bottom with a frothy white > layer floating on the water. This froth has uneven surfaces top and bottom > and it seems sticky as 'entrails' of it extend down into the clear water > layer on the sides of the jar. Is it possible that some glycerine got mixed in with the processed BD? Oh no, I just scooped out a small sample with a soup spoon, I did not disturb the darker glycerine level. That could have caused the "soap" on top, or the improper amount of water aded. No. Dear Luk the white stuff was not on top, the white stuff is under the oil on top of the clear water - how can water quantity be critical? Thanks for your help. > Luc > >> Above these two layers the oil seem to be > settling out but is is still opaque a week later. > >> I plan to decant the oil and wash that again, maybe a couple of times. > >> Before proceeding I am hoping with this description for a response from > someone on the list with experience to tell me if I have gone wrong or if > this is normal, also what this white frothy stuff is. I thought soap but I > was under the impression that soap floats on oil...... > >> Well, I am trying to start at the beginning and learn my way properly, this > I am doing at the same time as a e-mail friend up country. He has gone > straight into wvo litre batches, he doesn't use a blender just shakes his > mixture in a PET bottle, albeit for 45 minutes, at room temperature and he > gets 2 distinct layers after 1/2 hour and he can wash this getting 2 layers > again, water and oil - it's not fair :-( > > > _______________________________________________ > Biofuel mailing list > [EMAIL PROTECTED] > http://wwia.org/mailman/listinfo.cgi/biofuel > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuel archives at Infoarchive.net (searchable): > http://infoarchive.net/sgroup/biofuel/ > > > _______________________________________________ > Biofuel mailing list > [EMAIL PROTECTED] > http://wwia.org/mailman/listinfo.cgi/biofuel > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuel archives at Infoarchive.net (searchable): > http://infoarchive.net/sgroup/biofuel/ _______________________________________________ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo.cgi/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/
