> chemistry > divers > pyrolyse > recycling-of-polystyrene-synthesis-of-styrene-hazel-chem

recycling of polystyrene / synthesis of styrene

Hazel Chem - 2018-08-25

hello you all 

if you want please send in translations :D

in this video I am recycling polystyrene into its monomer styrene 
to do this i am using the thermolysis process therefore the polystyrene is heated and dry destilled to reform the styrene 

the purification by fractional destillation will follow in a other video soon 

tell me if you like the lab sound or if i should keep using music 

mfg 
hazelChem

Justus Felix - 2018-08-25

And i think lab sound is better!

JBSC - 2018-10-21

Well at least i can see  this video.  GREAT video.  I was to scared to use my glass on the depolymerization.   I am running out of RBF big time.  AGAIN glad you are on bitchte also.

_sivizius - 2018-08-25

Its a initiator, not a catalyst, because it get used up and it it determines the numbers of molecules.

HandsomeUfology - 2018-12-11

Make phenylacetaldehyde from styrene! Try to make it while avoiding it's oxidation to phenylacetic acid. You can make phenethylamine and N-ethylphenethylamine.

science_and_anonymous - 2018-08-26

AMAZING VIDEO!!!! Absolutely brilliant and can't wait to see more. Have fun in Amsterdam

Hazel Chem - 2018-09-07

thx man :D

science_and_anonymous - 2018-09-07

@Hazel Chem all the love dude

science_and_anonymous - 2018-08-26

Also, can you do this under vacuum to stop side reactions?

Hazel Chem - 2018-09-07

yes this would work just fine :D

mfg hazelChem

umesh Sonune - 2019-11-03

You can add some tertiary butyl catechol as a inhibitor, it might slow dimerization/polymerization of condensate. It can be washed afterwards by caustic solution.

slim Jim - 2020-06-19

👍

JOHN BLACK SUPER CHEMIST - 2020-09-30

GREAT VIDEO.............I feel so bad about your pyrolysis reactor. That is screwed up. I did this experiment with a tin can still and so it was not as air tight like a glass distillation apparatus. And the condenser i made was not working the greatest. Man my whole house and a 70 foot radius around the house smelled like styrene. That smell REALLY carries far. BIG TIME

Hazel Chem - 2020-09-30

jup the stench of styrene is quite strong even in small concentrations .... and it gives you a hell of a headache

JOHN BLACK SUPER CHEMIST - 2020-09-30

@Hazel Chem .........Yeah what i distilled was a NICE CLEAN milky white liquid of styrene. I GOT SICK FOR THREE DAYS.. By the time i got back to the styrene is was a DARK DIRTY BROWN liquid. But yeah it got me sick as heck. I breathed in a lot that day

Rachael Muti - 2019-12-19

How you make the polystyrene turn to hard solid . Can you brief the procedure? I really want to know because this experiment is interesting

Hazel Chem - 2019-12-19

you just dissolve the PS in your solvent of choice and let it evaporate. Ideally you recover the solvent. cheap and easy to get solvents would be acetone or isoprop


mfg hazelChem

بكر حسن - 2021-02-13

What's app number

Justus Felix - 2018-08-25

Wonderful babe!

Hazel Chem - 2018-08-25

thx :D wasn´t the best way to do it vacuum would have been way better .... but well it is like it is

Justus Felix - 2018-08-25

@Hazel Chem Yes. A schlenk line is much better for this

12thealchemist - 2018-08-26

Interesting that you use a heating mantle. UC235 uses a propane flame, and seems to end up with less char. Also, I hate to point this out, but it's "aromatics" not "aromates". Good video though!

Hazel Chem - 2018-09-07

thnaks for the feedback :D
the thing with the porpane flame is that it is hotter thus producing more sideproducts
mfg hazelChem

12thealchemist - 2018-09-08

Ahh okay, that does make sense. What was your yield, in the end? Once you've distilled it. If I remember correctly, UC235 got about a 70% yield. Interesting to compare methods.

Hazel Chem - 2018-09-15

well the problem is that i did not way the PS .... so i can´t calculate ..... sry for that :/

mfg hazelChem

12thealchemist - 2018-09-16

@Hazel Chem Ahh okay. Oh well, no matter XD It's always possible for someone else to repeat etc.

Nicolás Rodriguez - 2018-08-25

Isn't it better to wash with brine? Nice video btw

Hazel Chem - 2018-08-25

hmmm it could lead to polymerisation so .... idk

mfg
hazelChem

piranha031091 - 2018-08-25

Music? How about the ChemPlayer LP?
In memory of the fallen!

Hazel Chem - 2018-08-25

where could i get the sound ?

piranha031091 - 2018-08-25

Got them saved on my hard drive, uploading them to my channel now!

piranha031091 - 2018-08-25

Here's Volume 1 : https://www.youtube.com/watch?v=gd6KwDtpHpc

piranha031091 - 2018-08-25

And here's Volume 2 : https://www.youtube.com/watch?v=Ug9G2U4kKwg
You're good to go! ^^

La Rose Blanche - 2018-08-25

Music.