Acetone to aid reaction !

[Dickjotec]

What was the 3k batch like? That only had .01% acetone IIRC?
Dick

[Carrington]

For my commercial vessel batch I got good results but as my process is a bit different I don't think we should use this as a example . I may be getting a 200L reactor in a week so will be able to do batch size tests using traditional methods.

Paul

[photoman290]

has anyone done a batch yet and removed the acetone/meth from the batch straight away? maybe the acetone keeps reacting with the bio after the glys has been dropped but before the acetone/meth has been removed.

[1958steveflying]

has anyone done a batch yet and removed the acetone/meth from the batch straight away?

 Yes me, went straight into condensing .

[Dickjotec]

has anyone done a batch yet and removed the acetone/meth from the batch straight away? maybe the acetone keeps reacting with the bio after the glys has been dropped but before the acetone/meth has been removed.

Me as well. Reacted till pass then demeth.


Some more pics




From left
50/50 water and the foam.  Kept in hot bunker 40C for 24 hours.
The foam after heating to 50C and cooled.
Sample from bottom output from settling tank taken after 4 days settling.
Sample from  top of tank taken after 4 days settling.

All samples have had time to settle in the jars.

A sample from the top takeoff of the settling tank showed no fallout after several hours. Just doing a 50/50 on the sample.

The bio looks clear and has no floaters in it. The white band in the jar is interesting. Judging by the water at the bottom of the jar the foam must have had soap in it. I will post the results of the 50/50 later. This has split with no soap and a clear interface ATM I will leave till tomorrow then post pic.

Any ideas?

I will update the other thread with pics when I have them all done.

Dick

[Head Womble]

So it's looking like the acetone reactions are are going to lend themselves to titrated acid water washing,
maybe with two or more acetone washes.

May not be the dogs danglies as we thought.

[Dickjotec]

So it's looking like the acetone reactions are are going to lend themselves to titrated acid water washing,
maybe with two or more acetone washes.

May not be the dogs danglies as we thought.

That was my thought initially after this batch but as I usually settle for 2+ weeks and it is already clear to the top takeoff I now think it might be OK.
I will certainly try again with less acetone and a WBD
Dick

[1958steveflying]

I have fuged out a fair amount of wax/HMPE's. from my batch over the last few cold days.

The top of my batch looks sparkling, the bottom is cloudy. The same as Dick's.  Today with Paul we tested the cloudy Bio, it does not have any soap, it is PH neutral, it does not have any Methanol, Acetone or water in it !
It clears at 45c and goes cloudy again at 20c.  Paul spun it up to 4000 rpm in his lab centrifuge and it came out cloudy the same as it went in.

I am thinking on the basis of what we tested today it would not do any harm to run it, I am fairly certain it would not cause problems with filters or anything else for that matter yet it would go against the grain !

Either I am going to pump it through the polishing pots when I next get to it on Thursday into my delivery tank and draw a few litres from the bottom of that tank after a couple of days and see what gives. Or I am going to take the cloudy fuel and try washing that on it's own, maybe with some acetone in the first wash !

Thoughts anyone ?

[Dickjotec]

Sounds exactly like mine. If it is HMPE then it would block filters so how about running it through a 1mic filter if you have one? Unfortunately I only go down to 5mic.
I intend to leave mine for 10 days. Then see what the bottom is like.
If you have any old bio from non acetone batch try adding acetone and see what happens?
Dick

[Head Womble]

The only thing that worries me about washing it possable loss of yield.
Try it on some small samples first to see how you get on.

[1958steveflying]

Sounds exactly like mine. If it is HMPE then it would block filters so how about running it through a 1mic filter if you have one? Unfortunately I only go down to 5mic.
I intend to leave mine for 10 days. Then see what the bottom is like.
If you have any old bio from non acetone batch try adding acetone and see what happens?
Dick

It goes through a pair of 3 mic polishing pots on the way to my delivery tank then another polishing pot on the way to the car so I wont be worrying about the cars filter, however I do always carry a spare and the tools needed !

[1958steveflying]

The only thing that worries me about washing it possable loss of yield.
Try it on some small samples first to see how you get on.

Will do Mark. 

[Dickjotec]

Sounds exactly like mine. If it is HMPE then it would block filters so how about running it through a 1mic filter if you have one? Unfortunately I only go down to 5mic.
I intend to leave mine for 10 days. Then see what the bottom is like.
If you have any old bio from non acetone batch try adding acetone and see what happens?
Dick

It goes through a pair of 3 mic polishing pots on the way to my delivery tank then another polishing pot on the way to the car so I wont be worrying about the cars filter, however I do always carry a spare and the tools needed !

I wasn't thinking about the car filter rather if the cloudiness remains after filtering. If it does then I think we could be looking at something other than the HMPEs we know. Can you post the result after each pot?
Dick

[1958steveflying]

[/quote]



 Can you post the result after each pot?
Dick
[/quote]

Unfortunately not it is all plumbed in.

[1958steveflying]

Decided to try it through the twin polishing pots, came out the other side in the clear pipe sparkling, the pressure at the pots did not increase from start to finish. That will do for this batch.