Author Topic: Acetone to aid reaction ! (Read 59938 times)

Dickjotec · « **Reply #75 on:** January 24, 2013, 10:31:43 PM »

It looks good but ----- try a 10/90 as a starting point.
Dick

Julian · « **Reply #76 on:** January 24, 2013, 10:43:33 PM »

Good idea, I don't suppose for one minute it will show anything but 100% drop out, but I'll give it a go tomorrow.

Head Womble · « **Reply #77 on:** January 24, 2013, 10:46:39 PM »

I have no idea of the normal asm per liter dose, so I'll ask, should 3ml be enough to fully convert that amount of fresh oil ?

Julian · « **Reply #78 on:** January 24, 2013, 10:57:09 PM »

Quote from: mark on January 24, 2013, 10:46:39 PM

I have no idea of the normal asm per liter dose, so I'll ask, should 3ml be enough to fully convert that amount of fresh oil ?

You want me to do sums at this time of night?

I've no idea, I just lobbed some in with a pipette.

You've got me thinking now, what's the volume of a jam jar?

Head Womble · « **Reply #79 on:** January 24, 2013, 11:01:56 PM »

There was me thinking you'd calculated the volumes to do a propper scientific test.

I should have known better.

Julian · « **Reply #80 on:** January 24, 2013, 11:06:01 PM »

Scientific ... just remind me what that is again.

Just had a look and I'd guess at 400ml so the samples are probably around 200ml.

With a base of 3.5 that would require ... 0.2 x 3.5 x 5 = 3.5ml. So it's close.

Oh and I cant make Tuesday morning next week now ... had a call from a school with 200 ltrs of oil they won't take payment for.

Julian · « **Reply #81 on:** January 25, 2013, 12:37:38 AM »

Three hours on there's just a faint sign of glycerine forming at the bottom of the jar. The heating has gone off so the sample is cooling a little.

Dickjotec · « **Reply #82 on:** January 25, 2013, 08:31:43 AM »

I am thinking of adding acetone to a NaOH batch tomorrow.
Am I correct in thinking that if acetone is used then the glyc does not take up meth?
This being the case how quickly does the glyc set if NaOH is used?
Opinions please.
Dick

Carrington · « **Reply #83 on:** January 25, 2013, 08:55:07 AM »

Hi dick
Yes your right the Glyc should not take up any meth so I think it will be a temperature thing as to how quick the Glyc goes solid.
It should drop much faster so will still be hot when the majority of the Glyc has settled.

Paul

I will see if the Glyc has set in the sample batch using asm

Dickjotec · « **Reply #84 on:** January 25, 2013, 10:07:59 AM »

That confirms my thinking.
If using NaOH it will be difficult to react at low temperature as there is a substantial risk of the glyc setting in the pipe work. It may be time to experiment with a continuous glyc extraction system.
Dick

thewormman · « **Reply #85 on:** January 25, 2013, 10:23:44 AM »

Quote from: Carrington on January 25, 2013, 08:55:07 AM

Yes your right the Glyc should not take up any meth

Hi could you explain why that is or point me at something I can read about it?
Thanks

thewormman · « **Reply #86 on:** January 25, 2013, 10:43:08 AM »

Quote from: mark on January 24, 2013, 08:21:44 PM

This thread has grown very quickly today, guess I'm the only one that's been to work.

Dave (thewormman).
Considering you've yet to make any bio you've really got a good understanding of the principles involved.

When I said to do some reading I didn't expect you to learn so much so quick, well done mate,
sounds like you're going to be a valued member on here.

Cheers Mark Been reading masses so I dont try and do something physical

Good news is plaster came off yesterday and doc said didnt need a caliper

I can straighten it carefully and drive in a week!!!
Cant lift with it though for 10 weeks, dont need to lift to wire my processor though, gonna start next week

Head Womble · « **Reply #87 on:** January 25, 2013, 08:47:48 PM »

Quote from: thewormman on January 25, 2013, 10:43:08 AM

Good news is plaster came off yesterday and doc said didnt need a caliper I can straighten it carefully and drive in a week!!!
Cant lift with it though for 10 weeks, dont need to lift to wire my processor though, gonna start next week

That's good news mate, just take things slowly, you don't want to over do it and cause problems later.

That said, I'd find it very hard not to do stuff, it's just not in my nature.

I've been slowly emptying out my shed ready for the big reactor tank that's coming soon,
280L of gly gone allready.
Still can't put a mug down though.

Carrington · « **Reply #88 on:** January 25, 2013, 09:16:39 PM »

Hi all
Bad day today, back went out last night so lots of pain today so didn't realy do much in the way of samples but did check the micro batch from the other day.
600ml batch mixed at 25c with
20%meth
20%acretone
75% ASM
Mixed for 1.5-2 mins
94% conversion

Left to settle for few hours
Then mixed with glyc still in
Checked today and have .05ml dropout
So still looking good

Paul

nathanrobo · « **Reply #89 on:** January 26, 2013, 01:09:23 PM »

Paul

What do you think about getting Ben to test a fully finished sample that's been produced using acetone as a co-solvent?

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Acetone to aid reaction !