Author Topic: made a soapfree and glycerol free batch of bio (Read 9234 times)

alifreddy · « **Reply #15 on:** September 15, 2013, 06:27:53 PM »

did a 50/50 test and it split ok just need to buy some more methanol to do a 27/3 test

willbuild · « **Reply #16 on:** September 15, 2013, 06:56:17 PM »

for the amount of oil you have processed, there must be at least 15 lts of gly.
as Julian mentioned the amount of catalyst you have used is the minimum required to process new cooking oil.
you def need to do a 27/3 test and see what proportion of the 3 parts oil falls out, then add the catalyst that is needed, you need to add very little methanol, just to dissolve the catalyst

alifreddy · « **Reply #17 on:** September 16, 2013, 08:21:10 AM »

did a titration and it took about 6.5 ml of sodium hydroxide solution to get a colour change quite heavily used oil.

alifreddy · « **Reply #18 on:** September 16, 2013, 08:52:14 AM »

after 3 titrations 4ml for a 15 second change and 6ml for a permanent change quite heaviliy used oil

willbuild · « **Reply #19 on:** September 16, 2013, 08:34:35 PM »

so the value is 6.5= 6.5 grs per litre of oil plus the base rate, so you need to add the 6.5 grs per litre of oil, as you have already put in the base rate.
I would put in 5grs per litre with enought methanol ot get it to dissolve. and re process, then do a 27/3 test. good luck

alifreddy · « **Reply #20 on:** September 16, 2013, 09:40:27 PM »

thanks guys got a reaction and 10 litres of glycerol and bright clear bio. will always titrate before do a batch now

willbuild · « **Reply #21 on:** September 16, 2013, 11:07:38 PM »

there is at least 5 litres of glycerol and 12 Lt's of methanol to account for. some of the methanol will be in the bio and some is in the glycerol

alifreddy · « **Reply #22 on:** September 17, 2013, 08:11:26 AM »

its important I get my catalyst correct as my processor only heats to 50 degrees then cuts out with a thermostat. I have a plastic conical processor but was using a hot water copper tank with a tap on the bottom and always getting a full reaction with that cos it got very hot the heater packed up then it started to fall apart the stand and piping bought it for only 20 quid off ebay and resold it for 20 for scrap

willbuild · « **Reply #23 on:** September 17, 2013, 01:30:03 PM »

some pics of my set up

willbuild · « **Reply #24 on:** September 17, 2013, 01:32:15 PM »

later pic

Tony · « **Reply #25 on:** September 17, 2013, 01:45:02 PM »

Wow look how clean it all is

willbuild · « **Reply #26 on:** September 17, 2013, 03:05:36 PM »

I know, all other members compeat to see who has the dirtist shed. maybe I''ll change as i get more batches under my belt

nigelb · « **Reply #27 on:** September 17, 2013, 06:51:54 PM »

Quote from: willbuild on September 17, 2013, 03:05:36 PM

I know, all other members compeat to see who has the dirtist shed. maybe I''ll change as i get more batches under my belt

No competition there my friend. Tony's shed is the dirtiest I've ever been in....closely followed by Jims

Jamesrl · « **Reply #28 on:** September 17, 2013, 10:09:13 PM »

Quote from: nigelb on September 17, 2013, 06:51:54 PM

Quote from: willbuild on September 17, 2013, 03:05:36 PM
I know, all other members compeat to see who has the dirtist shed. maybe I''ll change as i get more batches under my belt

No competition there my friend. Tony's shed is the dirtiest I've ever been in....closely followed by Jims

Now that has pee'd me off, I ain't used to coming second.

Anyone know where I can get some more good quality crap, I just gotta beat that young pretender?

alifreddy · « **Reply #29 on:** September 18, 2013, 08:05:35 AM »

I'm now out of methanol found someone selling virgin grade on ebay 60 p per litre in Newark going on Saturday to get some.

how do I embed pictures on here??

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made a soapfree and glycerol free batch of bio