Using Magnesol.

[dgs]

Here is a couple of the old filtertechnik video's about magnesol.

https://www.youtube.com/watch?v=ABq6u_pdQtc

[Manfred]

My reasons are to try and stop this weird soap from forming http://www.biopowered.co.uk/forum/index.php/topic,2935.msg37153.html#msg37153
 I've been getting it in almost every batch. I'm going to try my next one from oil that hasn't been in the settling barrels. To see if it's the oil or contamination. The other reason is that the bio nowadays is much darker than I was producing last year. That's why I was reading how to lighten bio.
 Dave. Thanks for the offer. If I'm unsuccessful in sorting it I will be in touch maybe for a BBB swap.

[dgs]

That wierd soap you have been getting is similar to the sample I had from Terryecosse after I did a Dr Pepper on it. I will hopefully post the pictures of my test results later today. The way the Magnesol has cleaned the new oil up is amazing, the titration has also been greatly reduced, so it may be that the initial way foreward for you is to treat the unprocessed oil with Magnesol first then see how it processes.

No problem if you want me to take a few KG's to the bbb (that also goes for anyone else that wants to try it)

[dgs]

Here is the photo of the untreated oil (as collected) and the treated sample - with 3x teaspoons of Magnesol, mixed 3 times during 1 hour at about 50 degs.

The untreated sample titrates at 1.0 with KOH and the treated sample at only 0.2

The magnesol layer with all the crud and FFA's is visible at the bottom of the treated sample, doesn't look too unlike glycerol.

I didn't manage to complete any meaningful water tests on either sample. The Sandy Brae isn't too good with viscous liquids. I'll have to get some new reagents for the KF one of these days.

[dgs]

Finished biodiesel. Water washed and dried, then (right hand cubie) half of batch (100lts) treated with approx 500gms Magnesol and left to settle for 5 days, then centrifuged.

[dgs]

Centrifuge parts, as taken to bits, no cleaning. I'm pleased to say that there isn't the slightest trace of Magnesol present.

[DavidShinn]

Hi Dave,

If you use magnesol as a complete replacement for water washing, are you concerned that the finished bio might cloud up easier in Winter (as we have found, pump washing produces the creamy emulsified layer and makes the bio much more resistant to waxing in cold weather). Interesting tests.

Kind regards

David

[Tony]

That's interesting.  Mind you, both look like nice clean batches

[dgs]

Hi Dave,

If you use magnesol as a complete replacement for water washing, are you concerned that the finished bio might cloud up easier in Winter (as we have found, pump washing produces the creamy emulsified layer and makes the bio much more resistant to waxing in cold weather). Interesting tests.

Kind regards

David

You could be correct about this David, but if my thoughts are correct, that the magnesol removes mono's as well as ffa's then it should be OK.

In any case at the moment I am adding the Magnesol after water washing and drying. If I get a considerable amount of the emulsified layer after the 1st 20 min wash (2 to 3 litres which when split gives around 500mls of mono's) then I use a very small amount of acid on the next wash, about 7 mls of 50% acetic, which stops the emulsion on successive washes.

[Tony]

Do you plan to test Magnesol without water washing?

[dgs]

Do you plan to test Magnesol without water washing?

This will be a really good idea, with before and after soap tests. Next batch I do I will split and just de-meth and settle a portion, then treat with magnesol and see how it compares.

[Julian]

It'll be interesting to see the results of that, Dave.

[dgs]

I've completed the 1st test using Magnesol on de-methed and settled bio, although this isn't really representitive of a 100% converted batch.

I used 20 litres from my c/h tank which was 92% converted, it showed a soap level of only 350ppm. I de methed it and left it a few days to settle. About 2x tablespoons of glycerol dropped which was removed. Soap was 150ppm. Mixed it with 100gms of Magnesol and settled for 4 days. Soap was zero.

As said, when I'm able to do a normal process I will Magnesol treat part of the batch, it will be interesting to see how the Magnesol copes with bio that has a starting soap level of something like 3000ppm before de mething.

The bulk density of Magnesol is only 0.5 so measuring by volume seems to be the easiest way to dispense it.

[Tony]

Sounds promising.  Was that a sodium or potassium batch?

[dgs]

Sounds promising.  Was that a sodium or potassium batch?

It was potassium Tony.