Styrene waa hydrocarbon dareere ah oo dabiici ah oo cad oo inta badan laga soo saaro alaabada batroolka ka dib habka nuugista jajabka si loo soo saaro olefins iyo udugga lagama maarmaanka u ah alaabta kiimikada si ay u soo saarto Styrene.Inta badan dhirta kiimikada petrochemical waxay la mid tahay sawirka midigta.U fiirso tiirka toosan ee weyn kaas oo loo yaqaan tiirka distillation jajab.Halkan waa halka qaybaha batroolka lagu kululeeyo heerkul sare sababtoo ah mid kasta oo ka mid ah qaybaha ugu muhiimsan ee kiimikooyinka waxay leeyihiin dhibco karkaraya oo kala duwan si ay u kala saaraan si sax ah.
Styrene waa waxa loo yaqaan wareegyada kimistari sida monomer.Dareen-celinta monomer-yada samaynta "silsilad" iyo awoodda isku xidhka molecules kale ayaa lagama maarmaan u ah soo saarista Polystyrene.Unugyada Styrene waxa kale oo ay ku jiraan koox vinyl ah (ethenyl) oo wadaaga elektaroonnada falcelinta loo yaqaanno isku-xidhka covalent, tani waxay u oggolaanaysaa in lagu sameeyo balaastiig.Inta badan, Styren waxaa lagu soo saaraa hannaan laba tallaabo ah.Marka hore, alkylation of benzene (Hydrokarbon unsaturated) oo leh ethylene si loo soo saaro ethylbenzene.Aluminium chloride catalyzed alkylation ayaa weli loo isticmaalaa dhirta EB (ethylbenzene) badan oo adduunka ah.Marka taas la sameeyo, EB-ga waxaa la geliyaa habka fuuq-baxa ee saxda ah iyadoo la marayo EB iyo uumi ka badan kicinta sida oxide birta, chloride aluminium, ama waayadan, nidaamka kicinta zeolite sariirta go'an si loo helo qaab aad u saafi ah oo Styrene ah.Ku dhawaad dhammaan ethylbenzene ee laga soo saaro adduunka oo dhan ayaa loo isticmaalaa soosaarka styrene.Horumarkii ugu dambeeyay ee wax soo saarka Styrene ayaa kordhiyay siyaabaha Styrene loo soo saari karo.Hal dariiqo ayaa si gaar ah u isticmaala Toluene iyo Methanol halkii EB.Awood u lahaanshaha isticmaalka quudin kala duwan ayaa Styrene ka dhigaysa kheyraad la awoodi karo oo la tartami karo.
Sifaynta batroolka - Gaaban oo macaan
- Saliida ceeriin waa la kululeeyaa oo waxay noqotaa uumi.
- Uumiga kulul ayaa kor u kaca tiirka jajabka.
- Tiirku xagga hoose wuu ku kulul yahay wuxuuna u sii qaboojinayaa xagga sare.
- Marka uu uumi kaarboon kastaa kaco oo uu qaboojiyo barta uu karkarayo ayuu isku ururiyaa oo sameeyaa dareere.
- Qaybaha dareeraha ah (kooxaha hydrocarbons ee leh dhibco isku mid ah oo karkaraya) waxay ku xayiran yihiin saxaarad waxaana la damiyaa tuubooyinka
Styrene sidoo kale waa monomer lagama maarmaan u ah Polymers-kan:
- Polystyrene
- EPS (Polystyrene la fidin karo)
- SAN (Styrene Acrylonitrile Resins)
- SB Latex
- ABS (Acrylonitrile Butadiene Styrene Resins)
- SB Rubber (Styrene-butadiene ilaa 1940-kii)
- Thermoplastic Elastomers ( caag heerkulbeeg ah)
- MBS (Methacrylate Butadiene Styrene Resins)
Waqtiga boostada: Seb-28-2022