how can i seperate the n-hekzane and smelling liquid paraffine?

Hi !

Actually İ want to ask a special question if you answer me i will be so happy.
İ am a chemistry engineer and i am working in a cosmetic plant which is producing some baby lotions and rash creams at now.
My boss have bought a tone paraffine from İran and it is has a kind of bad smell.He wants to sweep this bad smell from this İranian Paraffine Wax.So İ soluted this parafine with n-hekzane and filtered it in pilot process and wax has lost its bad smell.But this technic is slow and expensive.İ think i should use centrifugal at first and then i should do distillitation to seperate n-hekzane from wax.But i dont know whether it is work or not..
Can you give some idea about this seperation process?
Thank you so much.


  • BobzchemistBobzchemist Member, PCF student
    The classic technique would be to melt the wax, mix it with activated carbon, and then filter the carbon out while the wax was still liquid. 

    This would be (relatively) easy to do on an industrial scale. Separating hexane from paraffin using distillation sounds like more trouble/expense than it's worth.
    Robert Zonis, Sr. Formulation Chemist, Beaumont Products "All opinions and comments expressed are my own, have no relation to Beaumont Products, are fully copyrighted, and may not be used without written permission."
  • If the paraffin wax has a foul smell then that must be coming from polycyclic hydrocarbons other than paraffin... in other words your boss has bought a contaminated product. Considering you are intending to use this in baby products have you considered the risk of the product ending up containing carcinogenic compounds? Of which there are MANY in petroleum byproducts.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • I wouldn't use it particularly in a baby/Lotion as even if you do deodorize it by re-fluxing with activated carbon and vacuum filtration you are likely to have allergenic compounds remaining so risk/benefit favors risk.I would find another supplier.
  • thanks all of u for your advices.i'll try activated carbon adsorption technique.
    but i'll consider all of your thoughts.
    Thanks a lot,again.
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