Kusukela engxenyeni yesibili yonyaka, kube khona ukuchezuka okuphawulekayo kumkhuba we-n-butanol nemikhiqizo yayo ehlobene, i-octanol ne-isobutanol.Ingena kwikota yesine, lesi simo siqhubekile futhi savusa uchungechunge lwemithelela eyalandela, ezuzisa ngokungaqondile uhlangothi lwesidingo lwe-n-butanol, ihlinzeka ngokusekela okuhle kokushintsha kwayo isuka ekwehleni okuhlangothi olulodwa ukuya kumkhuba ongaseceleni.

Ocwaningweni lwethu lwansuku zonke kanye nokuhlaziywa kwe-n-butanol, imikhiqizo ehlobene iyizinkomba ezibalulekile zenkomba.Phakathi kwemikhiqizo ekhona ehlobene, i-octanol ne-isobutanol zinomthelela obaluleke kakhulu ku-n-butanol.Engxenyeni yesibili yonyaka, kube nomehluko omkhulu wamanani phakathi kwe-octanol ne-n-butanol, kuyilapho i-isobutanol ihlezi iphezulu ngokuqhubekayo kune-n-butanol.Lesi simo sibe nomthelela omkhulu ekuhlinzekeni nasekudingeni isakhiwo se-n-butanol, futhi sibe nomthelela kuthrendi ye-n-butanol ngekota yesine.

Kusukela ngekota yesine, ngokusekelwe ekuqaphelweni kwedatha yokusebenza komfula, sithole ukuthi izinga lokusebenza lomkhiqizo omkhulu ongaphansi komfula, i-butyl acrylate, lehle kakhulu, okuholele ekwehleni okuphawulekayo kokufunwa kwe-n-butanol.Kodwa-ke, uma kuqhathaniswa nesizinda sokukhula okunikezwayo, imakethe ilindele ukuthi uchungechunge lwemboni ye-n-butanol luqongelele ngokushesha i-inventory ngokuzayo, okubangela ukuvutshelwa kwe-bearish motion.Kulo mongo, imakethe ye-n-butanol ibe nokwehla okungaphezu kuka-2000 yuan/ton.Kodwa-ke, ukulindela okubuthakathaka empeleni kuhlangabezane neqiniso eliqinile, futhi ukusebenza kwangempela kwemakethe ye-n-butanol ngoNovemba kuchezuke kakhulu kulokho obekulindelwe ngaphambili.Eqinisweni, naphezu kokuntuleka kokusekelwa okuphezulu okusebenzayo kusukela ku-butyl acrylate enkulu kunazo zonke ezansi nomfula, ukukhuphuka kwamazinga okusebenza kweminye imikhiqizo engaphansi komfula njenge-butyl acetate ne-DBP kubaluleke kakhulu, okusekela ukuthambekela kwamanje kwe-n-butanol kusukela ekuwohlokeni okuhlangene kuya emaceleni. ukusebenza.Kusukela kuvalwa ngoNovemba 27, intengo ye-Shandong n-butanol yayiphakathi kuka-7700-7800 yuan/ton, futhi ibihweba emaceleni eduze naleli zinga amasonto amathathu alandelanayo.

Kunezincazelo eziningi zezinguquko ekusetshenzisweni komfula yimakethe, kodwa ukunyuka kwamazinga okusebenza embonini ye-plasticizer ye-DBP ephansi kanye nesimo esiqhubekayo se-inventory ephansi siyangqubuzana nokusebenza okujwayelekile kwemboni phakathi nenkathi engabizi kakhulu.Sikholelwa ukuthi ukwenzeka kwalesi senzakalo esingenhla akuhlobene nje kuphela nokugcwaliswa ngezigaba komfula, kodwa futhi nemikhiqizo ehlobene, futhi kunomthelela oqhubekayo emakethe ye-n-butanol.

Umehluko wentengo onwebekayo phakathi kwe-octanol ne-n-butanol ngokungaqondile unyusa isidingo se-n-butanol

Eminyakeni emihlanu edlule (2018-2022), umehluko wentengo omaphakathi phakathi kwe-octanol ne-n-butanol ubungu-1374 yuan/ton.Uma lo mehluko wentengo udlula leli nani isikhathi eside, kungase kuholele kumadivayisi ashintshekayo akhethe ukukhulisa ukukhiqizwa kwe-octanol noma ukunciphisa ukukhiqizwa kwe-n-butanol.Kodwa-ke, kusukela ngo-2023, lo mehluko wamanani uqhubeke nokukhula, wafinyelela ku-3000-4000 yuan/ton engxenyeni yesithathu neyesine.Lo mehluko wentengo ephezulu ngokwedlulele uhehe amadivayisi ashintshekayo ukuthi akhethe ukukhiqiza i-n-butanol, ngaleyo ndlela kuthinte uhlangothi lwesidingo lwe-n-butanol.

Ngokunwetshwa komehluko wamanani phakathi kwe-octanol ne-n-butanol, kuvele izinto eziphawulekayo zokushintshwa kwenkundla emkhakheni we-plasticizer ongezansi.Nakuba ingxenye ye-DBP emkhakheni we-plasticizers ingabalulekile, njengoba umehluko wentengo phakathi kwe-octanol ne-n-butanol ukhula, umehluko wamanani phakathi kwe-DBP ne-octanol plasticizers nawo ukhula njalo.Ngokusekelwe ekucatshangelweni kwezindleko, amanye amakhasimende okugcina akhulise ngokulingene ukusetshenziswa kwe-DBP, akhulisa ngokungaqondile ukusetshenziswa kwe-n-butanol, kuyilapho inani elihambisanayo lama-plasticizers e-octanol lehlile.

I-Isobutanol iyaqhubeka nokuba phezulu kune-n-butanol, isidingo sishintshela ku-n-butanol

Kusukela ngekota yesithathu, umehluko wentengo phakathi kwe-n-butanol ne-isobutanol wenze izinguquko ezinkulu.Ngokusekelwa kwayo okuyisisekelo okuqinile, i-isobutanol ishintshile kancane kancane isuka ekubeni ngaphansi kune-n-butanol yaya ekubeni iphakeme kune-n-butanol njengokujwayelekile, futhi umehluko wentengo phakathi kwakho kokubili usufinyelele phezulu okusha eminyakeni yamuva.Lokhu kuguquguquka kwentengo kube nomthelela omkhulu ekusetshenzisweni kwe-isobutanol/n-butanol.Njengoba inzuzo yezindleko ze-isobutanol plasticizers incipha, amanye amakhasimende angaphansi komfula alungisa amafomula awo okukhiqiza futhi aphendukela ku-DBP ngezinzuzo ezinkulu zezindleko.Kusukela ngekota yesithathu, izimboni ezimbalwa ze-isobutanol plasticizer enyakatho nasempumalanga yeChina ziye zabhekana namazinga ahlukene okwehla kumazinga okusebenza, ezinye izimboni zize zaphendukela ekukhiqizeni ama-plasticizers n-butanol, okwandisa ngokungaqondile ukusetshenziswa kwe-n-butanol.