how long for methanol recovery?

[whiteaddiction]

I read on here that methanol evaperates at around 150 degrees. I also read on another website that you are to heat the oil up to 205 degrees? Maybe someone can set this straight. If I heat it up to 205 degrees then what? Shut off everything? Or is there a time that it should be at 150 degrees?

[Rushmore X]

Methanol will boil @ 150, but increasing the heat will increase the rate of boiling. 205 keeps it under the boiling point of water, which would contaminate the methanol if you are trying to recover it. I recover at 190, only because my pump drips once I get above 170, and it drips faster as temp goes up... tryng to find a better pump... Anyway I run it until the Methanol distillation slows to a slow drip...

[fabmandelux]

Originally Posted by Rushmore X

Methanol will boil @ 150, but increasing the heat will increase the rate of boiling. 205 keeps it under the boiling point of water, which would contaminate the methanol if you are trying to recover it. I recover at 190, only because my pump drips once I get above 170, and it drips faster as temp goes up... tryng to find a better pump... Anyway I run it until the Methanol distillation slows to a slow drip...

Exactly right! Good info, and rep sent

[Rushmore X]

Thanks Don! (I think this was something you had said in an early post actually, so was just passing it on.)

This last batch I ran today I followed your recommendation of not running the pump and just heating it in the processor. You were right, not much of a difference in Methanol ouput, maybe a smidge slower if any, and I didn't have to to deal with leakage...