I-Vinyl Acetate (VAF), eyaziwa nangokuthi i-Vinyl Acetate noma i-Vinyl Acetate, iwuketshezi olungenamibala futhi olusobala ekushiseni kwegumbi kanye nengcindezi. Njengolunye lwezinto ezisetshenziswayo ezisetshenziswayo ezisetshenziswayo zomhlaba ezisetshenziswayo, i-VV ingakhiqiza i-polyvinyl acetate resin (PVAC), i-polyvinyl alcohonitile (PVA), i-polyacrylonitritria (PAN) nezinye izinto zokutholwa nge-polymerization yayo noma amanye ama-monomer. Lezi zinto zokutholwa zisetshenziswa kabanzi ekwakheni, izindwangu, imishini, emikhakheni kanye nezimo zenhlabathi.

Ukuhlaziywa okuphelele kwe-vinyl acetate imboni chain

I-Upstream ye-Vinyl Acetate Tiction Chain ihlanganiswa ngokusetshenziswa okuluhlaza njengama-acetylene, i-acetic acid izindlela ze-hydrogen, njll. Indlela yokulungiselela uphethiloli, futhi ithinteka ukuguquguquka kwamanani kawoyela angaphandle. Eyokuqala kungukulungiswa kwe-acetylene ngegesi yemvelo noma i-calcium carbide, bese kuthi kanye ne-acetic acid synthesis ye-vinyl acetate, igesi yemvelo ephakeme kakhulu kune-calcium carbide. I-Downstream ikakhulukazi ukulungiswa kotshwala be-polyvinyl, i-latex emhlophe ye-latex (polyvinyl acetate emulsion), i-vae, eva ne-pan, njll., Lapho i-polyvinyl alcohol isidingo esikhulu.

1, izinto ezikhuphukayo ze-tinyl acetate

I-acetic acid iyisihluthulelo esisezingeni eliphakeme se-vae, futhi ukusetshenziswa kwayo kunokuhlobana okuqinile nge-VAE. Idatha ikhombisa ukuthi kusukela ngo-2010, ukusetshenziswa okusobala kwe-acetic acid kugcwele ukuthamba, ngo-2020 kuphela amathani angu-3.60 aqhathaniswa, i-acetic aciciam acetate, i-acetic acity acetha, imboni ye-acetic ackaven iqhathaniswa, imboni ye-acetic acicias ilonke izoqhubeka nokukhula.

Ngokwezicelo ezansi komfula, ama-25,6% we-acetic acid asetshenziselwa ukukhiqiza i-PTA (i-terephthalic acid), i-19.4% ye-acetic acid isetshenziselwa ukukhiqiza i-acetate ye-vinyl, kanye ne-18.1% ye-acetic acid isetshenziselwa ukukhiqiza i-acetate ye-ethyl. Eminyakeni yamuva, iphethini yezimboni yezinto ezifuywayo ze-acici acid ibizinzile. I-Vinyl Acetate isetshenziswa njengenye yezingxenye ezibaluleke kakhulu ze-Downstream ze-acetic acid.

2. Ukwakhiwa okwehle nge-vinyl acetate

I-Vinyl Acetate isetshenziselwa ikakhulukazi ukukhiqiza i-polyvinyl alcohol kanye ne-EVA, njll. I-Vinyl Acetate (i-VV), i-ethyleney acetate uqobo noma amanye ama-monomer acetate - ethylene copolymer (EVA), njll. Ama-polmers aphumela angasetshenziswa njengoba Adhesives, iphepha noma ama-agents wendwangu, upende, ama-inks, ama-inks, ama-emulsifiers, amafilimu ancibilikise embonini, embonini elikhanyayo, ekwenzeni amaphepha, ukwakhiwa kwezinkambu zezimoto. Imininingwane ikhombisa ukuthi ama-65% we-acetate we-vinyl asetshenziselwa ukukhiqiza utshwala be-polyvinyl kanye ne-12% ye-vinyl acetate isetshenziselwa ukukhiqiza i-polyviny acetate.

Ukuhlaziywa kwesimo samanje seMakethe ye-Vinyl Acetate

1, i-vinyl actetate prowity umthamo kanye nezinga lokuqala

Ngaphezulu kwama-60% we-Vinyl Acetate Production umthamo we-Vinyl Acetate Uma kuqhathaniswa nendlela ye-acetylene, indlela ye-ethylene inobuhlakani obukhulu futhi inobungani bemvelo, ngokumsulwa komkhiqizo ophakeme. Njengoba amandla endla embonini yamakhemikhali yaseChina athembele kumalahle, ukukhiqizwa kwe-vinyl acetate kususelwa kakhulu kwi-acetylene indlela, futhi imikhiqizo iphansi kakhulu. Umthamo wokukhiqiza wasekhaya we-Vinyl acetate wandiswa kakhulu ngonyaka ka 2013-2016, ngenkathi esele engashintshiwe ngo-2016-2018. Imboni ye-vinyl ye-acetate yaseChina ye-2019 iveza isimo se-sccapacicity esihlelekile, amayunithi we-calcium carbide acetylene acetylene amayunithi kanye nokuhlushwa okuphezulu kwemboni. I-2020, umthamo wokukhiqizwa we-vinyl waseChina we-Vinyl acetate wamathani / ngonyaka wezigidi ezingama-265, unyaka wonke.

2, ukusetshenziswa kwe-vinyl acetate

Uma kudala ukusetshenziswa kukhathazekile, i-vinyl acetate ye-china yonke ibonisa ukuthambekela okuguquguqukayo okuguqukayo, futhi imakethe ye-vinyl acetate eChina ibilokhu yanda ngenxa yezidingo ze-acetic aciciam eva, ukusetshenziswa kwe-acetic aciciate, kusukela ngo-2013 China acetate Makether Makete Decelo Ukuvuselelwa ngokushesha, ukusetshenziswa kukhuphuke unyaka nonyaka, njengoba ngo-2020 ophansi sekufinyelele amathani ayizigidi eziyi-1,95, ukukhuphuka kwe-4.8% uma kuqhathaniswa no-2019.

I-3, intengo ephakathi yemakethe ye-vinyl acetate

Ngokombono wamanani emakethe we-vinyl acetate, othintekile umthamo ngokweqile, amanani emboni ahlala azinzile ngo-2009-2020. Ngo-2014 ngokuthengiswa kwamanye amazwe, amanani omkhiqizo womkhiqizo akhule kakhulu, amabhizinisi asekhaya anwebeka ngenkuthalo ukukhiqizwa, okuholela ekuqhekekeni kakhulu. Amanani entengo we-vinyl acetate awela kakhulu ngonyaka ka-2015 nango-2016, naku-2017, athintwe izinqubomgomo zokuvikela imvelo, amanani omkhiqizo womkhiqizo akhule kakhulu. Ngo-2019, ngenxa yokuthola okwenele emakethe ye-Upstream acetic acetic acid kanye ne-scouding efunwa embonini yezokwakha ephansi, amanani omkhiqizo womkhiqizo awela ngaphezulu, ngokwezintengo zemikhiqizo anciphise ukwenyuka kwamanani entengo aphezulu kanye nokuhlinzekwa okuphansi kwemakethe okubangelwa ezinye izimbotshana zefekthri noma ukubambezeleka.

Sibutsetelo Izinkampani ze-Ethy Acetate

Izitshalo ezine ze-Ethyl Enterpment Segment SINOPEC zinomthamo wamathani / unyaka wezigidi eziyi-1.22, accounting for ama-43% wezwe, futhi iqembu le-Anhui Wanwei linamathani angama-750,000 amathani angama-26,5%. Ingxenye etshalwe imali yakwamanye amazwe i-Celanese amathani angama-350,000 / unyaka, i-accounting ye-12%, kanye nengxenye yangasese yangaphakathi iMongolia Shuangxin kanye neNingxia Dadi / unyaka, i-accounting ka-20%. Abakhiqizi be-acetate basekhaya bamanje baseNyakatho-ntshonalanga, e-East China naseningizimu-ntshonalanga, abasebenza nge-accounting yamandla aphezulu, e-East China accounting ka-6.4% kanye ne-Southwest Accounting nge-21.2%.

Ukuhlaziywa kwe-Vinyl Acetate Outlook

1, u-Eva Downstream afuna ukukhula

I-EVA Downstream ye-Vinyl Acetate ingasetshenziswa njengefilimu ye-PV cell emaplion. Ngokusho kwenethiwekhi yamandla eNtsha Yezwe Lomhlaba wonke, i-EVA evela e-Ethylene ne-Vinyl Acetate (VA) ama-monomer amabili ngokusabela kwe-copolymerization, i-adfing esetshenzisiwe, i-adfings eshibhile, i-adfings ye-adhesives, i-Photovoltaic cell anemibono, Njp. 2020 ngoxhaso lwe-Photovoltaic ngonyaka odlule, abakhiqizi abaningi basemaduna basekhaya bamemezele ukwanda kokukhiqiza, kanye nokuhlukaniswa kwezinga lokungeniswa kwe-module ye-Photovoltaic, isilinganiso samamojula we-Photovoltaic ngaphezulu kokukhula okulindelekile, ukuvuselelwa kwe-EVA ukufuna ukukhula. Kulindeleke ukuthi amathani angama-800,000 omthamo we-EVA azofakwa ku-2021. Ngokokulinganisa, ukukhula kwamathani amathani angama-800,000 okudinga ukukhula kwamathani we-vinyl acetate, okuzothuthukisa ukukhula konyaka kwamathani we-acetic acid acetic.

2, i-vinyl acetate ukweqa ngokweqile, imikhiqizo ephezulu kakhulu isadinga ukungeniswa

I-China inokuqhekeka okuphelele kwe-vinyl acetate, kanye nemikhiqizo ephezulu kakhulu isadinga ukungeniswa. Njengamanje, ukulethwa kwe-vinyl acetate eChina kudlula isidingo, ngokudlula konke okweqile nokukhiqiza ngokweqile ukuthembela ekusetshenzisweni kwamanye amazwe. Kusukela ukwanda kwe-Vinyl Acetate Production Poliction ngonyaka ka-2014, ukuthunyelwa kwama-acetate we-vinyl acetate e-China kukhule kakhulu, kwathi eminye imikhiqizo engenisiwe iye yathathelwa indawo yikhono lokukhiqizwa kwasekhaya. Ngaphezu kwalokho, ukuthunyelwa kwamanye amazwe kwama-China ikakhulukazi imikhiqizo ephansi ephansi, ngenkathi okungenisa okungenisa ezweni ikakhulukazi imikhiqizo ephezulu kakhulu. Njengamanje, iChina isadinga ukuncika ekungenisweni kwemikhiqizo ephezulu ye-vinyl acetate, futhi imboni ye-vinyl acetate isenendawo yokuthuthuka emakethe yomkhiqizo ophakeme.