Two stage no tit-question

[willbuild]

I have a 100ltr gl processor that i fill to about 93ltrs leaving a small headspace. when i demeth i start to recover just over 65c and i limit the temp to around 87c. when i notice the rate slows to a drip per second (about 60 mins) i turn off the heat and leave demething for around another 60 mins.
when i've collected between 7 and 8 lts i then stop.
Should i heat above 87c?
If i heat above that will i be also evaporating the water that was in the prewash?

[Julian]

If you are demething and pre-washing, demeth first to keep the methanol as pure as possible and then do your 7% pre-wash.

It's not really been proven, but there's a strong school of thought that high processing temperatures can promote HMPEs (or what ever we're calling them this month).  Personally I don't go much higher than 75°C when demething and let the water washes remove any residual methanol.

[Jamesrl]

If i heat above that will i be also evaporating the water that was in the prewash?

Water starts to evaporate at 0.01c so trying to keep the temperature low is a complete waste of time and effort.

[willbuild]

now that makes sense. by the time i reach 75c i am getting a good flow. I understood that i had to pre wash before demeth and could not work out what difference it made

[willbuild]

have been in spain for the last 5 weeks looking after my mum and should be back in cardiff next week. Will have around 200 lts of wvo to collect and i got 50 ltrs of meth sealed and stored waiting for my return. have done alot of reading and using the forum the last few weeks and cant wait to put into practice. thank you everyone for the advice.
Oh and i nearly forgot alifreddy

[Jamesrl]

thank you everyone for the advice.

Oh and i nearly forgot alifreddy

Yes, don't forget young freddy, I bet you've learned a vast amount from his posts.

[Rossey]

There are some things, chemically, you don't need to be concerned about Rossey. However, I think that plant design and adequate ventilation should be top of your list.

Good practice with chems is something to take note of with good PPE and ventillation so as not to come in contact with fumes or liberated dust.

I wasn't trying to be patronising..sorry if it came across like that.

Questions are good...especially when relevant.

That's ok mate.

Just thought that boiling a very flammable liquid isn't a good idea.

[Rossey]

Not bad for my first attempt

[Jamesrl]

That'll do, simples innit.

[Rossey]

That'll do, simples innit.

Would you run that in your car?

[Jamesrl]

Ngquote author=Rossey link=topic=1570.msg18797#msg18797 date=1380992203]

That'll do, simples innit.

Would you run that in your car?
[/quote]

Certainly would geezer.

Bang it in and enjoy, when it's ready that is.

[Rossey]

Ngquote author=Rossey link=topic=1570.msg18797#msg18797 date=1380992203]

That'll do, simples innit.

Would you run that in your car?

Certainly would geezer.

Bang it in and enjoy, when it's ready that is.
[/quote]

I'm bubbling it over night and leaving it to settle for a couple of weeks, then filtering through two 1 mic filters.

Is that good enough?

[Jamesrl]

I'm bubbling it over night and leaving it to settle for a couple of weeks, then filtering through two 1 mic filters.

Is that good enough?

Are you demething in the reactor first?

Bubble, settle, wait, filter, that's the way to do it.

I do serious filtering,  I use a J-cloth.

[Rossey]

I'm bubbling it over night and leaving it to settle for a couple of weeks, then filtering through two 1 mic filters.

Is that good enough?

Are you demething in the reactor first?

Bubble, settle, wait, filter, that's the way to do it.

I do serious filtering,  I use a J-cloth.

I didn't Demeth, just bubbling as its my first try and didn't want to reverse the reaction.

[Jamesrl]

I didn't Demeth, just bubbling as its my first try and didn't want to reverse the reaction.

Drain off the glycerol first, demeth the bio only.

Remember next doors dog, methanol fumes are toxic.