Kubonakale ukuthi amanani entengo yemikhiqizo yamakhemikhali emakethe ayaqhubeka ehle, eholela ekungalingani kwenani ekuxhumaneni okuningi kwe-Chemic Check chain. Amanani entengo aphezulu kawoyela alondoloziwe akhuphule ingcindezi yezindleko embonini yezimboni zamakhemikhali, kanye nomnotho wokukhiqiza wemikhiqizo eminingi yamakhemikhali umpofu. Kodwa-ke, intengo yemakethe ye-vinyl acetate ibuye yathola ukwehla okuqhubekayo, kepha inzuzo yokukhiqiza iye yaqhubeka ihlala iphakeme futhi umnotho wokukhiqiza muhle. Ngakho-ke, kungani i-I-Vinyl Acetateimakethe igcina izinga eliphakeme lokuchuma?

Kusukela ngasekupheleni kukaJuni 2023, intengo yemakethe ye-vinyl acetate ingu-6400 yuan / ton. Ngokwamazinga entengo wezinto zokusetshenziswa ze-ethylene nendlela ye-ethylene kanye nendlela ye-calcium carbide, i-margin yenzuzo yendlela ye-ethylene acetate ye-vinyl acetate cishe i-14%, ngenkathi i-margin yenzuzo ye-calcium carbide acetate elahlekile. Naphezu kokwehla okuqhubekayo ngentengo ye-vinyl actetate unyaka owodwa, i-margin yenzuzo ye-vinyline acetate ye-vinyl ihlala iphakeme kakhulu, ifinyelela phezulu ngamaphesenti angama-47, iba ngumkhiqizo we-marmin ophakeme kakhulu phakathi kwamakhemikhali anzuzo. Ngokuphambene nalokho, indlela ye-calcium carbide ye-vinyl acetate ibisesimweni sokulahlekelwa iningi leminyaka emibili edlule.

Ngokuhlaziya izinguquko kuma-margins wenzuzo we-ethylene esekelwe e-vinyl acetate acetate kanye ne-calcium Carbide esekelwe eVinyl acetate, kutholakala ukuthi i-vinyline acetate esekelwe e-vinyl ibilokhu inenzuzo eminyakeni embalwa edlule, ngenhla kwenzuzo ephezulu yokufinyelela ku-50% noma ngaphezulu kanye nesilinganiso Izinga le-Margin yenzuzo elingaba ngu-15%. Lokhu kukhombisa ukuthi i-vinyline acetate esekelwe e-Ethylene inenzuzo enkulu eminyakeni emibili edlule, ngokuchuma okuhle okuphelele kanye nemishado yenzuzo ezinzile. Eminyakeni emibili edlule, ngaphandle kwenzuzo enkulu evela ngoJulayi 2022 kuya kuJulayi 2022 kuya kuJulayi 2022, indlela ye-calcium carbide ye-vinyl acetate ibisesimweni sokulahlekelwa kuzo zonke ezinye izikhathi. Kusukela ngoJuni 2023, izinga lenzuzo yenzuzo ye-calcium carbide acetate ecishe ibe ngu-20%, kanye nomugqa wenzuzo wenzuzo ye-calcium carbide indlela vinyl acetate kule minyaka emibili edlule kwakungu-0.2% ukulahleka. Kulokhu, kungabonakala ukuthi ukuchuma kwendlela ye-calcium carbide ye-vinyl acetate imbi, futhi isimo sonke sibonisa ukulahleka.

Ngokuhlaziya okwengeziwe, izizathu eziphambili zenzuzo ephezulu ye-EthLyene Acetate Production imi ngalendlela elandelayo: Okokuqala, ingxenye yezindleko zezinto ezibonakalayo ezingavuthiwe ezinqubweni ezahlukene zokukhiqiza iyahlukahluka. Endleleni ye-ethylene ye-vinyl acetate, ukusetshenziswa kweyunithi kwe-ethylene kungu-0.35, kanye nokusetshenziswa kweyunithi ye-glacial acetic acid ngu-0.72. Ngokwezinga elijwayelekile lentengo ngoJuni 2023, i-Ethylene account cishe ama-37% wezindleko ze-Ethylene Acetate ye-Ethylene Acetate, kuyilapho i-glacial acetic acid account yama-45%. Ngakho-ke, ngomthelela wezindleko, ukuguquguquka kwentengo ye-glacial acetic acid kunomthelela omkhulu kakhulu ekushintsheni kwezindleko ze-ethylene acetate, kulandelwa i-ethylene. Ngokuya umthelela ezindlekweni ze-calcium carbide indlela vinyl acetate, izindleko ze-calcium carbide ye-calcium carbide indlela ye-vinyl acetate akhawulela ama-akhawunti acishe abe ngu-47% . Ngakho-ke, ngendlela ye-calcium carbide ye-vinyl acetate, ukuguqulwa kwentengo ye-calcium carbide kunomthelela omkhulu kwizindleko. Lokhu kuhluke kakhulu kumthelela wezindleko zendlela ye-ethylene.

Okwesibili, ukwehla kwezinto ezingavuthiwe ethylene kanye ne-glacial acetic acid bekubalulekile, kuholele ekunciphiseni okukhulu kwezindleko. Ngonyaka owedlule, intengo kaCfr eNorthast Asia Ethylene yehle ngo-33%, futhi intengo ye-glacial acetic acid yehle nge-32%. Kodwa-ke, izindleko ze-vinyl acetate ezikhiqizwe yi-calcium carbide indlela inqotshwa ngentengo ye-calcium carbide. Ngonyaka owedlule, intengo ye-calcium carbide iwele nge-25%. Ngakho-ke, ngokombono wezinqubo ezimbili ezahlukene zokukhiqiza, izindleko ezibonakalayo ezibonakalayo ze-vinyl acetate ezikhiqizwa yindlela ye-ethylene yehle kakhulu, futhi ukuncishiswa kwezindleko mkhulu kunaleyo ye-calcium carbide indlela.

Yize intengo ye-vinyl acetate yehle, ukwehla kwayo akubalulekile njengamanye amakhemikhali. Ngokusho kwezibalo, ngonyaka owedlule, intengo ye-vinyl acetate iwile ngo-59%, okungabonakala kubalulekile, kepha amanye amakhemikhali abonile ukwehla okukhulu. Isimo esibuthakathaka samanje semakethe yamakhemikhali yaseChina kunzima ukuguquka ngokuyisisekelo. Kulindeleke ukuthi ngokuzayo, kunenzuzo ephezulu yokuthi inzuzo yokukhiqiza yemakethe yabathengi bokugcina, ikakhulukazi imikhiqizo efana ne-polyvinyl alcohol no-Eva, izogcinwa ngokucindezela inzuzo ye-vinyl acetate.

Kunokungalingani okubaluleke kakhulu kwenani embonini yamakhemikhali yamanje, futhi imikhiqizo eminingi isesimweni sezindleko eziphakeme kodwa ezimakethe zabathengi ezivilaphayo, okuholela emnothweni wokukhiqiza ompofu. Kodwa-ke, yize ebhekene nobunzima, imakethe ye-vinyl acetate isigcinile inzuzo ephezulu, ikakhulukazi ngenxa yengxenye ehlukile yezindleko ezibonakalayo ezingavuthiwe kwinqubo yayo yokukhiqiza kanye nokuncishiswa kwezindleko okubangelwa ukwehla kwamanani entengo eluhlaza. Kodwa-ke, isimo esibuthakathaka emakethe yamakhemikhali saseChina esizayo kunzima ukuguquka ngokuyinhloko. Kulindeleke ukuthi ngokuzayo, kunenzuzo ephezulu yokuthi inzuzo yokukhiqiza yemakethe yabathengi bokugcina, ikakhulukazi imikhiqizo efana ne-polyvinyl alcohol no-Eva, izogcinwa ngokucindezela inzuzo ye-vinyl acetate.