Habka wax soo saarka N-hexane
Inta badan wax soo saarka hexane ee ajnabiga ah waxay isticmaalaan hababka xayeysiiska shaandhada molecular, sida Richfielcd (Richfield) iyo Watson (Watson) ee Maraykanka, iyada oo la isticmaalayo raffinate dib loo habeeyay sida alaabta ceeriin, iyada oo dib loo warshadeynayo laba ama in ka badan sariirood si loo xayeysiiyo. Qalafsanaanta saxaafadda si aad u soo saarto n-hexane.
Inta badan soosaarayaasha hexane ee gudaha waxay isticmaalaan habka distillation hydrogenation, kaas oo loo qaybiyay laba nooc:

Marka hore, hydrogenation ka dibna hagaajinta.

Sidoo kale loo yaqaan pre-hydrogenation, alaabta ceeriin waxaa lagu kululeeyaa kulaylka sarrifka, gaadho heerkulka falcelinta, galo reactor hydrogenation ah, desulfurization iyo falcelinta dearomatization hoos tallaabo ee kicinta, saliidda dareere ah iyo isku darka hydrogen galaan taangiga kala soocidda , Soo kabashada hydrogen, Saliid dareere ah oo geli munaaradda jajabka Iska jar alaabta dhammaatay. Guud ahaan, ka dib hydrogenation-ka alaabta ceeriin, weli waa la jajabiyaa oo la gooyaa n-hexane, iyo noocyada kale ee saliidda dareeraha ah. Faa'iidada ayaa ah in dhammaan alaabta ceeriin ay dhadhamiyaan oo ay dhammaadaan, iyaga oo si buuxda u isticmaalaya badeecad kasta. Khasaaraha ayaa ah in maalgashigu uu weyn yahay iyo isticmaalka maaddada oo sarreeya.

Marka labaad, hagaajinta ka dibna hydrogenation.

Sidoo kale loo yaqaan post-hydrogenation, kiiska n-hexane, alaabta ceeriin ayaa marka hore la gooyaa hexane cayriin ee 66-69 distillation, nadiifnimada hexane cayriin ayaa si weyn loo hagaajiyay, iyo tan iyo markii kooxda phenyl ay tahay. Waxaa ku jira n-hexane, hexane ee hexane cayriin ah Waxa ku jira sidoo kale si weyn ayaa loo kordhiyaa, ka dibna la hoos geeyey hydrodebenzene desulfurization si ay u soo saaraan tayo sare leh n-hexane. Faa'iidada ayaa ah in maalgashigu yar yahay isticmaalka maaddaduna ay yar tahay. Khasaaraha ayaa ah in qaybta aan biyo la'aanta ahayn aan si hufan looga faa'iidaysan.