I-styrene esetshenziswa kuma-polymers

I-Styrene iyi-hydrocarbon ewuketshezi ephilayo ecacile ekhiqizwa ikakhulukazi emikhiqizweni kaphethiloli ngemva kwenqubo ye-fractional distillation ukuze kukhishwe ama-olefin nama-aromatics adingekayo ukuze izinto zamakhemikhali zikhiqize i-Styrene.Izitshalo eziningi zamakhemikhali e-petrochemical zifana nesithombe esingakwesokudla.Qaphela ikholomu enkulu eqondile ebizwa ngokuthi ikholomu ye-fractional distillation.Yilapho izingxenye ze-petroleum zishiselwa khona zibe izinga lokushisa eliphezulu ngenxa yokuthi ingxenye ngayinye yamakhemikhali eyinhloko inamaphuzu ahlukene abilayo ngaleyo ndlela iwahlukanisa ngokunembe kakhulu.

I-styrene yilokho okwaziwa emibuthanweni yamakhemikhali njenge-monomer.Ukusabela kwama-monomers akha "amaketanga" kanye nekhono lokuxhuma namanye ama-molecule kubalulekile ekukhiqizeni i-Polystyrene.Ama-molecule e-styrene aqukethe neqembu le-vinyl (i-ethenyl) elabelana ngama-electron ngendlela eyaziwa ngokuthi i-covalent bonding, lokhu kuvumela ukuthi yenziwe ibe amapulasitiki.Ngokuvamile, i-styrene ikhiqizwa ngenqubo yezinyathelo ezimbili.Okokuqala, i-alkylation ye-benzene (i-hydrocarbon engagcwalisiwe) ene-ethylene ukukhiqiza i-ethylbenzene.I-Aluminium chloride catalyzed alkylation isasetshenziswa ezitshalweni eziningi ze-EB (ethylbenzene) emhlabeni jikelele.Uma lokho sekwenziwe, i-EB ifakwa ohlelweni olunembe kakhulu lwe-dehydrogenation ngokudlula i-EB kanye ne-steam phezu kwe-catalyst efana ne-iron oxide, i-aluminium chloride, noma kamuva nje, uhlelo lwe-fixed-bed zeolite catalyst ukuze uthole uhlobo oluhlanzekile kakhulu lwe-Styrene.Cishe yonke i-ethylbenzene ekhiqizwa emhlabeni wonke isetshenziselwa ukukhiqizwa kwe-styrene.Intuthuko yakamuva ekukhiqizeni i-Styrene inyuse izindlela i-styrene engakhiqizwa ngazo.Enye indlela ikakhulukazi isebenzisa i-Toluene ne-Methanol esikhundleni se-EB.Ukwazi ukusebenzisa izitokwe ezihlukene zokudla kwenza i-Styrene ibe yinsiza engabizi kakhulu ngokuncintisana.

I-Petroleum Refining - Ifushane futhi Imnandi

• Uwoyela ongahluziwe uyashisisa bese uphenduka umhwamuko.
• Umhwamuko oshisayo ukhuphula ikholomu yokuhlukanisa.
• Ikholomu iyashisa ngezansi futhi iphola iye phezulu.
• Njengoba umhwamuko ngamunye we-hydrocarbon ukhuphuka futhi uphole uze ufike lapho uyabila uyajiya wenze uketshezi.
• Izingxenye eziwuketshezi (amaqembu ama-hydrocarbon anamaphuzu abilayo afanayo) avaleleke emathileyi futhi akhishwe ngamapayipi.

I-styrene nayo iyi-monomer ebalulekile kulawa maPolymers:

• I-Polystyrene
• I-EPS (I-Polystyrene Enwebekayo)
• I-SAN (Styrene Acrylonitrile Resins)
• I-SB Latex
• I-ABS (Acrylonitrile Butadiene Styrene Resins)
• I-SB Rubber (Styrene-butadiene kusukela ngo-1940)
• Ama-Thermoplastic Elastomers (ama-thermoplastic rubber)
• I-MBS (Methacrylate Butadiene Styrene Resins)