Iqatshelwe ukuba amaxabiso eemveliso zeekhemikhali kwimarike ayaqhubeka ukwala, okhokelela kwixabiso lokungalingani kumakhonkco onxibelelwano lwemichiza. Amaxabiso aphezulu e-oyile aphezulu anyuse uxinzelelo lweendleko kwi-chain yecandelo lekhemikhali, kwaye uqoqosho lwemveliso kwiimveliso zeekhemikhali ngamahlwempu. Nangona kunjalo, ixabiso lentengiso le-vinyl acetate ikwayele ukwehla okuqhubekayo, kodwa inzuzo yemveliso ihleli ihleli kwaye imveliso ilungile. Ke, kutheni le ntovinyl acetateIntengiso igcina inqanaba eliphezulu lokuchuma?

Phakathi ukuya ku-ten 2023, ixabiso lentengiso leVinyl Acetate i-6400 yuan / ton. Ngokwamanqanaba amaxabiso ezinto eziluhlaza zendlela ye-Ethylene kunye nendlela ye-calcium ye-calylene ngendlela ye-vinyl acetate i-caltide yendlela ye-calcium ye-calcone ikwindawo yelahleko. Ngaphandle kokwehla okuqhubekayo kwixabiso le-vinyl acetate unyaka, umda wenzuzo ye-ithoyl ye-ithoyl acetate uhlala enama-47% kwiimeko ezithile, ukuba yeyona mveliso iphakamileyo yenzuzo phakathi kweekhemikhali. Ngokwahlukileyo, indlela ye-calcium carbide ye-vinyl acetate ikwimeko yelahleko uninzi lweminyaka emibini edlulileyo.

Ngokuhlalutya iinguqu kwi-Maggins yenzuzo ye-vinyl ye-vinyl acetate kunye ne-calcium carbide, ifunyenwe ukuba i-vinyl ye-vinyl ye-vinyl ihlala ingenelo kwiminyaka embalwa edluleyo, kunye ne-50% okanye ngaphezulu kunye nomndilili Inqanaba lomda wenzuzo kwi-15%. Oku kubonisa ukuba i-vinyl ye-vinyl ye-vinyl ye-vinyl ingene inzuzo kule minyaka mibini idlulileyo, ngokuchuma okuzinzileyo kunye nenzuzo yenzuzo. Kule minyaka mibini idlulileyo, ngaphandle kweenzuzo ezibalulekileyo ukusuka ngoMatshi 2022 ukuya kuJulayi 2022, indlela yeCalcium Indlela ye-vinyl acetate ikwimeko yelahleko kuwo onke amanye amaxesha. Ukusukela nge-20 kaJuni 423, inqanaba le-Insorgin lendlela ye-calcium callide vinyl acetate yayijikeleze i-20% yelahleko yendlela ye-calcium ye-calcium vinyl i-vinyl i-0.2% ilahleko. Ukusuka koku, inokubonwa ukuba impumelelo yendlela ye-calcium ye-caljomide ye-vinyl acetate ihlwempu, kwaye imeko iyonke ibonisa ilahleko.

Ngohlaziyo, esona sizathu siphambili senzuzo ephezulu ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ilandelayo: Okokuqala, indawo yexabiso lezinto ezikrwadayo kwiinkqubo ezahlukeneyo zemveliso ziyahluka. Kwindlela ye-ethylene ye-vinyl acetate, ukusetyenziswa kweyunithi ye-Ethylene yi-0.35, kunye neyunithi yokusetyenziswa kwe-GOCECATIC ACCIC ye-ACCEC yi-ACCIC yi-ACCEC ye-ACCEC ye-ACCEC yi-ACCIC ye-ACCEC ye-ACCEC) yi-0.72. Ngokwenqanaba lamaxabiso aphakathi ngoJuni 2023, i-ithylene ichaza malunga ne-37% yeendleko ze-Ethylene esekwe kwi-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-vinyl ye-acid ye-Acic. Ke ngoko, ngenxa yefuthe leendleko, ukuguquguquka kwexabiso le-ACEtic acid kunefuthe elikhulu kuguqulo lweendleko ze-vinyl ye-vinyl ye-vinyl ye-vinyl elandelwa, ilandelwa yi-Ethylene. Ngokwempembelelo kwiindleko zendlela ye-calcium calbide vinyl i-calcim ye-calcium ye-calcium ye-calcim ye-calcim ye-vinyl ye-calcim ye-calcim ye-calcide ye-calcetate ye-35% . Ke ngoko, kwiNdawo yeCalcium carbide ye-vinyl acetate, utshintsho lwamaxabiso e-calcium carbide lunempembelelo enkulu kwiindleko. Oku kwahlukile kakhulu kwifuthe leendleko lendlela ye-zethylene.

Okwesibini, ukwehla kweZinto eziPhezulu ze-Ethylene kunye ne-GALCE I-ACCEC ye-Acid yayibalulekile, kukhokelela ekuncini kwendleko kwiindleko. Kunyaka ophelileyo, amaxabiso e-CFR mpuma empuma ye-Iathylene yehlile nge-33%, kwaye ixabiso le-GOCECATICATIC ACCIC inciphile ngama-32%. Nangona kunjalo, iindleko ze-vinyl acetate eziveliswe ngendlela ye-calcium calbide ikakhulu inyanzelekile ngexabiso le-calcium carbide. Kunyaka ophelileyo, ixabiso le-calcium carbide iwile nge-25%. Ke ngoko, kwimbono yeenkqubo ezimbini ezahlukeneyo zemveliso, iindleko ezingu-vinyl ze-vinyl ziveliswe yi-Ethylene Indlela ephunyeziwe kakhulu, kwaye ukunciphisa iindleko kukhulu kakhulu kunoko.

Nangona ixabiso le-vinyl acetate lehlile, ukwehla kwayo akubalulekanga njengezinye iichemicals. Ngokobalo, kunyaka ophelileyo, ixabiso le-vinyl acetate iwile ngama-59%, enokubonakala ibalulekile, kodwa ezinye iichemicals ziye zayekisa. Imeko ebuthathaka yentengiso ye-Chinese Chinecal Chemic Chemic Chinese inzima ekuzisiseni. Kulindelwe ukuba kwixa elizayo, kukho amathuba aphezulu okwenza inzuzo yemveliso yabathengi, ngakumbi iimveliso ezinjenge-polyvinyl utywala kunye ne-Eva, ziya kugcinwa ngokucinezela i-vinyl acetate.

Kukho ukungalingani kwexabiso elinzulu kwi-chain yoshishino lweekhemikhali, kwaye uninzi lweemveliso zikwimeko ephakamileyo kodwa imakethi yabathengi ye-viggish, ikhokelela kuqoqosho lwemveliso embi. Nangona kunjalo, ngaphandle kokuba ujongene nobunzima, i-vinyl ye-vinyl ye-vinyl igcine inqanaba eliphezulu lenzuzo, ikakhulu ngenxalenye yexabiso lezinto eziluhlaza kwimveliso yemveliso kunye nokuncitshiswa kweendleko ezibangelwa kukuncipha kwamaxabiso aphezulu. Nangona kunjalo, imeko ebuthathaka yemarike yekhemikhali yexesha elizayo inzima kakhulu ukuba iguqulwe. Kulindelwe ukuba kwixa elizayo, kukho amathuba aphezulu okwenza inzuzo yemveliso yabathengi, ngakumbi iimveliso ezinjenge-polyvinyl utywala kunye ne-Eva, ziya kugcinwa ngokucinezela i-vinyl acetate.