ʻO ka homebutyl acetateua komo ka mākeke i ka wā kumukūʻai kiʻekiʻe mai 2021 a ma luna. No nā mea kūʻai hope, ʻaʻole hiki ke pale aku i nā kumu kumu kumu kūʻai kiʻekiʻe a hoʻohana i nā mea ʻokoʻa maʻalahi. No laila sec-butyl acetate, propyl acetate, propylene glycol methyl ether, dimethyl carbonate, a me nā mea ʻē aʻe e pili ana i ka mākeke butyl acetate. ʻO ka ʻaoʻao terminal e koho i ka hoʻololi e pili ana i ka hana ʻana o nā ʻano huahana like ʻole, kahi i alakaʻi i ka emi nui o ka noi no ka butyl acetate i nā makahiki ʻelua i hala. Ua hōʻole ka hoʻohana ʻana i ka butyl acetate i ka 400,000 tons i ka makahiki 2021, a hiki i ka pae o ka manawa 2016. ʻOiai aia ka mana o ka maʻi maʻi maʻi, ʻoi aku ia ma muli o ke kumukūʻai kiʻekiʻe a me ke kumukūʻai kiʻekiʻe e hopena i ka hōʻemi ʻana o ka butyl acetate i ka hoʻohana hope.

I ka hapa mua o 2022, ua haʻalulu ka mākeke butyl acetate i lalo, a i ka lā 13 Iulai, ʻo ke kumukūʻai mākeke ma North China he 7,400-7450 yuan / ton, me ke kumukūʻai waena i kapa ʻia he 19.29% ka emi ʻana i ka hopena o ka makahiki i hala. ʻO ka loaʻa ʻana o nā mea kūʻai aku a me nā kahua kūʻai aku, e hāʻawi ana i ka acetic acid, n-butanol, butyl acetate maka kūʻai aku.

ʻO ka hapaha mua: he māmā ke kālepa mākeke a hāʻule nā ​​kumukūʻai

I Ianuali, ʻo ke ʻano holoʻokoʻa o ka butyl acetate ma hope o ka piʻi ʻana o nā kumu waiwai n-butanol, a laila kokoke i ka Spring Festival i alakaʻi ʻia i nā palena logistic, ua emi nā kālepa mākeke.

I Pepeluali, ua hoʻomaka ka piʻi ʻana o nā kumukūʻai ma hope o ka wehe ʻana o ka mākeke ma hope o ka makahiki hou o Kina, ua pau ka n-butanol no ka mea e hoʻopiha hou ana kekahi poʻe kūʻai i ko lākou kūlana ma hope o ka ʻahaʻaina, ʻike i ka hemahema, a aloha ka hapa nui o nā mea kūʻai aku e kūʻai aku, no laila ua piʻi hou ke kumukūʻai ma luna o ka papa.

I ka hoʻomaka ʻana o Malaki, i alakaʻi ʻia e nā kumukūʻai aila maʻemaʻe, piʻi wikiwiki nā kumukūʻai methanol, piʻi nui nā kumukūʻai acetic acid, a paʻa nā kumukūʻai n-butanol, kākoʻo ʻia e ke kumu kūʻai, ʻo ka butyl acetate nā kumukūʻai ma hope o ka piʻi ʻana, i ka waena o ka mahina ma muli o ka maʻi ahulau.

ʻElua hapaha: ke ʻano holoʻokoʻa o ka oscillation haiki

Ma mua o ka lā hoʻomaha o Mei, hoʻopiha hou i lalo, a me kekahi mau mea hana acetic acid i nā hoʻolālā mālama, piʻi nā kumukūʻai acetic acid, ke kumu kūʻai o ke kākoʻo, nā kumukūʻai butyl acetate ma hope o ka piʻi ʻana.

I ka mahina o Iune, ua hoʻomau nā kumukūʻai n-butanol i ka palupalu, i hui pū ʻia me ka emi mau ʻana o nā kumukūʻai acetic acid maka, ma lalo o ka mana o ke kākoʻo kumu kūʻai ʻole, ua hoʻomau nā kumukūʻai butyl acetate i ka emi ʻana.

I Iulai, ua nāwaliwali ke kumu kūʻai o ka butyl acetate, nāwaliwali ka mea acetic acid a me ka n-butanol trend, ʻaʻole lawa ke kākoʻo kumu kūʻai, a ʻo ke koi holoʻokoʻa holoʻokoʻa he māmā, ke kūʻai ʻana i nā mea hou aku no ka mālama pono ʻana i ke koi, ʻo ka lewa kūʻai ʻāina maʻamau, e nāwaliwali ka ʻaoʻao kumu, ʻoiai ka ʻaoʻao o ka ʻaoʻao o lalo no ka mālama pono ʻana, ʻo ka manaʻo o ka ʻāina he ākea a me ka pōkole o ka manaʻo. mākeke a i ʻole e hoʻomau i ka nāwaliwali, pono e hoʻolohe ka poʻe hope i ka dynamics o nā mea hana hana Ua manaʻo ʻia e mau ka nāwaliwali o ka mākeke butyl acetate i ka wā pōkole.

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