Yuav ua li cas ethylbenzene tsim los ntawm benzene?
Yuav ua li cas ethylbenzene tsim los ntawm benzene?

Video: Yuav ua li cas ethylbenzene tsim los ntawm benzene?

Video: Yuav ua li cas ethylbenzene tsim los ntawm benzene?
Video: Yuav ua li cas thiaj thov tau daim ntawv tso cai los qhib business nyob rau lub nroog Minneapolis 2024, Kaum ib hlis
Anonim

Ethylbenzene yog npaj los ntawm cov tshuaj tiv thaiv ntawm ethylene thiab tshuaj benzene thaum muaj Friedel -Crafts catalyst xws li txhuas chloride ntawm li 95 ° C (Daim duab 12.1). Txhawm rau txhim kho cov catalyst efficiency ib co ethyl chloride yog ntxiv, uas ua rau hydrochloric acid ntawm cov tshuaj tiv thaiv kub.

Hauv qhov no, yuav ua li cas ethylbenzene?

Ethylbenzene yog tsim tawm los ntawm catalytic alkylation ntawm benzene nrog ethylene, los yog los ntawm sib xyaw xylenes los ntawm isomer sib cais thiab catalytic isomerisation, los yog los ntawm 1, 3-butadiene nyob rau hauv ob-kauj ruam txheej txheem uas cov butadiene hloov dua siab tshiab rau vinylcyclohexane uas yog ces dehydrogenated.

Tsis tas li ntawd, ntau npaum li cas ethylbenzene txaus ntshai? EPA tau txiav txim siab tias lub neej raug rau 0.7 mg / L ethylbenzene tsis xav tias yuav ua rau muaj teeb meem teebmeem Yog tias koj noj ntses thiab haus dej los ntawm lub cev dej, cov dej yuav tsum tsis pub ntau tshaj 0.53 mg / L. ethylbenzene.

Ua kom pom qhov no, qhov twg ethylbenzene los ntawm?

Ethylbenzene yog cov xim tsis muaj xim, nplaim hluav taws uas tsw zoo li roj av. Nws yog ib txwm pom muaj nyob rau hauv thee tar thiab roj av thiab yog kuj pom hauv cov khoom lag luam tsim xws li inks, tshuaj tua kab, thiab pleev xim. Ethylbenzene yog siv feem ntau los ua lwm yam tshuaj, styrene.

Puas yog ethyl benzene aromatic?

Ethylbenzene tshwm raws li cov kua ntshiab tsis muaj xim nrog ib qho aromatic tsw. Ethylbenzene yog cov kua uas tsis muaj xim, tsw ntxhiab tsw zoo li roj av. Nws tau pom hauv cov khoom lag luam ib txwm muaj xws li cov pa roj av thiab roj av thiab tseem muaj nyob hauv cov khoom tsim khoom xws li inks, tshuaj tua kab, thiab pleev xim.

Pom zoo: