Ngokuhlomula ekuthuthukisweni okusheshayo kwezimboni ezansi nomfula, izwe lami seliphenduke umkhiqizi omkhulu we-p-chlorotoluene emhlabeni.Ngaphezu kokuhlangabezana nezidingo zemakethe yasekhaya, imikhiqizo iphinde ithunyelwe ezimakethe zaphesheya.
I-p-Chlorotoluene, eyaziwa nangokuthi i-4-chlorotoluene, ine-molecular formula C7H7Cl.Ukubonakala kwe-p-chlorotoluene kuwuketshezi olungenambala futhi olusobala, olunephunga elikhethekile, ubuthi nokucasuka.I-p-Chlorotoluene ayincibiliki emanzini, iyancibilika kuzincibilikisi zemvelo ezifana notshwala, i-ether, i-benzene, i-acetone, i-chloroform, njll. Iyasha, iyasha uma kuvuleka ilangabi, isabela ngobudlova uma kwenzeka kuba yi-oxidizing, futhi ingase iqhume lapho kungangeni moya. iziqukathi.I-Para-chlorotoluene wuhlobo lomkhiqizo olubaluleke kakhulu phakathi kwama-isomer amathathu e-chlorotoluene.
Izindlela zokulungiselela ze-p-chlorotoluene ikakhulukazi zifaka i-toluene ephunga indandatho ye-chlorination indlela, indlela ye-p-toluidine diazotization nokunye.Phakathi kwazo, indlela ye-toluene enephunga elimnandi ye-chlorination iyinqubo evamile yokulungiselela.Isebenzisa i-toluene eyomile njengento eluhlaza, yengeza i-catalyst, yethula igesi ye-chlorine, yenza ukusabela kwe-chlorination ngaphansi kwezimo ezithile zokushisa ukuze ithole umkhiqizo, bese ingena inqubo yokuhlukanisa ukuze ithole i-p-chlorotoluene.Umkhiqizo wale ndlela yingxube ye-p-chlorotoluene ne-o-chlorotoluene.Enqubweni yokukhiqiza, kunomehluko esilinganisweni sokuphumayo kokubili kusetshenziswa ama-catalyst ahlukene.Indlela yokuhlukanisa ingaba indlela yokulungisa i-crystallization, indlela ye-molecular sieve adsorption, njll.
I-p-Chlorotoluene isetshenziswa kakhulu kwezokwelapha, izibulala-zinambuzane, odayi, izinyibilikisi, i-organic synthesis neminye imikhakha.Emkhakheni wezokwelapha, i-p-chlorotoluene ingasetshenziswa ukukhiqiza amaphilisi e-clomezadone, i-pyrimethamine, i-clotrimide, njll.;emkhakheni wezibulala-zinambuzane, ingasetshenziswa ukukhiqiza ama-insecticides, ama-herbicides, ama-fungicides, njll. Emkhakheni wedayi, ingasetshenziswa ukukhiqiza i-acid blue 90, i-CI ihlakaza i-blue 109, njll;emkhakheni we-organic synthesis, ingasetshenziswa ukulungisa i-p-chlorobenzaldehyde, i-p-chlorobenzoic acid, i-p-chlorobenzonitrile, i-p-chlorobenzoyl chloride njll.;ingasetshenziswa futhi njengenjoloba, i-resin solvent.
Ngokusho "kwesimo sokuthuthukiswa kwemakethe yemboni ye-p-chlorotoluene yaseChina ka-2021-2025 kanye nombiko wokuhlaziywa kwedatha yokukhiqiza nokuthengisa" okhishwe yi-Xinsijie Industry Research Center, i-p-chlorotoluene ingabhekana nokusabela okuhlukahlukene ukuze ilungiselele imikhiqizo ehlukahlukene yamakhemikhali amahle, kanye nokuphuma kwayo wuhlobo lomkhiqizo olufunwa kakhulu futhi olusetshenziswa kakhulu phakathi kwama-isomer e-chlorotoluene.Ngokuhlomula ekuthuthukisweni okusheshayo kwezimboni ezansi nomfula, izwe lami seliphenduke umkhiqizi omkhulu we-p-chlorotoluene emhlabeni.Ngaphezu kokuhlangabezana nezidingo zemakethe yasekhaya, imikhiqizo iphinde ithunyelwe ezimakethe zaphesheya.Kulinganiselwa ukuthi kusukela ngo-2020 kuya ku-2025, imakethe yomhlaba wonke ye-p-chlorotoluene izokhula ngesilinganiso sokukhula esingaba ngu-4.0%, futhi imboni yezwe lami ye-p-chlorotoluene inethuba elihle lokuthuthuka.
Iningi lamabhizinisi wezwe lami we-p-chlorotoluene akhiqiza imikhiqizo ephansi.Ngakho-ke, ekukhiqizweni kwe-p-chlorotoluene yezwe lami, isilinganiso sokuzisebenzisa ngamabhizinisi siphezulu, futhi ingxenye yokuthengiswa kwamanye amazwe incane.
Ngokusho kwabahlaziyi bemboni abavela e-Xinsijie, i-p-chlorotoluene iyimpahla eluhlaza yamakhemikhali acolekileyo kanye namakhemikhali aphakathi nendawo.Isetshenziswa kakhulu kwezokwelapha, izibulala-zinambuzane, odayi nakweminye imikhakha, futhi isidingo semakethe siyaqhubeka sikhula.
Isikhathi sokuthumela: Mar-30-2022