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Conversion to ethylene glycol is also the means by which waste ethylene oxide is scrubbed before venting to the environment. [126][127] Ethylene oxide is classified as a class 2 carcinogen by the German MAK commission and as a class A2 carcinogen by the ACGIH. The majority of EO material was generally destined for the downstream ethylene glycol (EG) chain and hence had a ready home, despite the continued sluggishness of the domestic … A saturated organic heteromonocyclic parent that is a three-membered heterocycle of two carbon atoms and one oxygen atom. The first commercial plant which uses this method was opened in 2008 in South Korea. All rights reserved. Ethanolamines are used in the manufacture of soap and detergents and for purification of natural gas. L'oxyde d'éthylène est aussi important dans l'industrie des détergents, dans un procédé appelé éthoxylation. Jump to content. By-products include acetaldehyde (due to isomerization). Il est utilisé pour stériliser des substances que des techniques reposant sur la chaleur, comme la pasteurisation, pourraient endommager. A similar production method was developed by Scientific Design Co., but it received wider use because of the licensing system – it accounts for 25% of the world's production and for 75% of world's licensed production of ethylene oxide. Type of substance Composition: mono-constituent substance Origin: organic Total tonnage band Total range: 1 000 000+ tonnes per annum REACH Registered as: Chem. Dehydrochlorination of 2-chloroethanol, developed by Wurtz back in 1859, remains a common laboratory route to ethylene oxide: The reaction is carried out at elevated temperature, and beside sodium hydroxide or potassium hydroxide, calcium hydroxide, barium hydroxide, magnesium hydroxide or carbonates of alkali or alkaline earth metals can be used. Chem., 1950, 42, 7, 1434-1438, https://doi.org/10.1021/ie50487a046 1,3-Butadiene, Ethylene Oxide and Vinyl Halides (Vinyl Fluoride, Vinyl Chloride and Vinyl Bromide)", "Shell Chemical LP – Geismar, United States of America", "Shell Nederland Chemie BV – Moerdijk, Netherlands", "Ethylene Oxide (EO) Uses and Market Data", OMEGA delivers for ethylene glycol makers, "13.1.3.5. House, Moscow, 1978, 192. ass: Standard non-polar; Column diameter: 0.20 mm; Column length: 25 m; Column type: Capillary; Heat rate: 6 K/min; Start T: 50 C; End T: 250 C; CAS no: 75218; Active phase: OV-101; Carrier gas: N2/He; Phase thickness: 0.10 um; Data type: Normal alkane RI; Authors: Zenkevich, I.G., Experimentally measured retention indices., 2005. ass: Standard non-polar; Column type: Capillary; CAS no: 75218; Active phase: Methyl Silicone; Data type: Normal alkane RI; Authors: Farkas, O.; Heberger, K.; Zenkevich, I.G., Quantitative structure-retention relationships. Pour ces raisons, le contrôle électrochimique continu des concentrations est une pratique courante, et il est interdit d'utiliser l'oxyde d'éthylène pour fumiger l'intérieur des bâtiments dans l'UE et dans certaines autres juridictions[39]. Son message a ensuite été repris par le toxicochimiste André Picot[18]. Hygiène et sécurité Apparence . Eng. Download : Download full-size image; Fig. [33] The carboxylate ion acts as nucleophile in the reaction: Ethylene oxide reacts with ammonia forming a mixture of mono-, di- and tri- ethanolamines. Here, water is used as the scrubbing media which scrubs away majority of ethylene oxide along with some amounts of CO2, N2, CH2=CH2, CH4 and aldehydes (introduced by the recycle stream).

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