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Vinyl Acetate from Ethylene and Acetic Acid over Palladium-Gold
Charlie

Imeundwa na

Charlie

17. Oktoba 2026DE
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Vinyl Acetate from Ethylene and Acetic Acid over Palladium-Gold

Vinyl acetate, the monomer for PVA wood glue, is made by oxidising ethylene and acetic acid together with oxygen in the gas phase, over a palladium-gold shell catalyst in steam-heated tube reactors at 150–160 °C and 8–11 bar. About 92 % goes to vinyl acetate; the rest burns. A few ppm of hydroquinone keeps it from forming explosive peroxides in air. The picture: our diagram of reactor, condenser and column.
Juu
Continuous

Maagizo

1

Oxidise over palladium-gold

Feed ethylene, acetic acid vapour and oxygen through steam-heated tubes packed with palladium-gold catalyst at 150–160 °C and 8–11 bar.

Vifaa kwa hatua hii:

EthiliniEthilini350 kg
Asidi asetiki (safi kabisa)Asidi asetiki (safi kabisa)750 kg
OksijeniOksijeni200 kg

Zana zinazohitajika:

Riakta ya mirija yenye kitanda kisichohamishikaRiakta ya mirija yenye kitanda kisichohamishika
Kichocheo cha paladiamu na dhahabuKichocheo cha paladiamu na dhahabu
Kibana gesiKibana gesi
2

Condense the product

Cool the reactor gas to condense vinyl acetate, water and unreacted acetic acid (our method). Send the unreacted ethylene back to the reactor.

Zana zinazohitajika:

Koili ya kifidishajiKoili ya kifidishaji
Kibana gesiKibana gesi
3

Distil

Distil the vinyl acetate (boils at 72.7 °C) off the water and acetic acid (our method), and return the acid to the feed.

Zana zinazohitajika:

Mkusanyiko wa nguzo ya kunerekaMkusanyiko wa nguzo ya kunereka
4

Stabilise for storage

Stir in 3–20 ppm hydroquinone; without it vinyl acetate forms explosive peroxides in air. Keep it away from flames: its vapour ignites easily.

Vifaa kwa hatua hii:

HaidrokwinoniHaidrokwinoni10 g

Zana zinazohitajika:

Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
5

Feed per tonne

Inapakia daftari la Jupyter…

Vifaa

4

Zana Zinazohitajika

6

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Monoma ya vinili asetati

Free

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Ethylene by Steam Cracking of Naphtha

Ethylene by Steam Cracking of Naphtha

na CharlieDE

Viwandani

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Ethylene Oxide by Direct Oxidation over Silver
Hatari

Ethylene Oxide by Direct Oxidation over Silver

na CharlieDE

Viwandani

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CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

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