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, okulindelwe 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, ukwanda kwamazinga okusebenza kweminye imikhiqizo engaphansi komfula njenge-butyl acetate ne-DBP kubaluleke kakhulu, okusekela ukuthambekela kwamanje kwe-n-butanol kusukela ekunciphiseni 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.