Hi all,
First of all, a big THANX for all the people in Journey to Forever for sharing their knowledge and experience with the rest of us!
I'm a beginner in the biodiesel world (a few months only), and I have some questions... I've tried to find answers in the archives, but hadn't found any.
Anyway, my story is something like this:
I have done a lot of new veg oil test batches of 1 liter (3.5 gr NaOH, 200ml Methanol) by the book, and at the quality washing tests (shaking violently the separated biodiesel with water), although I got better results with time, the best I got was a separation from the water, but with half to one cm wide intermediate layer between the water and the biodiesel. I've tried 3.7gr of NaOH and got worse results. Should I try 3.4gr of NaOH? (maybe my measuring tools are poor...)
The funny thing is, that I tried to process a WVO. I did a titration with 1% NaOH,
and got magenta\pink after 2.3 ml (2-3 times). So I put 5.8gr (3.5 +2.3) of NaOH, and got with the best washing quality test ever! The biodiesel got separated in 20 minutes with a paper thin layer between. The third wash was cristal clear. Beginners luck? In order to be sure that it is really working, I've tried different concentration of NaOH. But then I got excellent separation in the washing test also with 6.2gr of NaOH... How can that be? Was my magenta really pink and not magenta??? Perhaps my titration was to low- do you get good washing tests when you use less NaOH than you should?
Thanx
Daniel
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