C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
C23F 11/00 (2006.01) B01J 19/00 (2006.01) C08F 114/06 (2006.01) C10B 43/14 (2006.01) C10G 9/16 (2006.01)
Patent
CA 2411118
A method of reducing the formation of coke deposits on the heat-transfer surfaces of an ethylene dichloride to vinyl chloride pyrolysis furnace comprising exposing the heat transfer surfaces of said pyrolysis furnace to a phosphine selected from the group consisting of phosphines with the general formula (I): wherein R1, R2 and R3 are selected from the group consisting of hydrogen, chlorine, alkyl, aryl, alkylaryl and arylalkyl, wherein R1, R2 and R3 can be the same or different.
Cette invention concerne un procédé permettant de réduire la formation de dépôts de coke sur les surfaces de transfert de chaleur d'un four à pyrolyse pour transformation de dichlorure d'éthylène (EDC) en chlorure de vinyle, qui consiste à exposer lesdites surfaces à une phosphine pris dans le groupe de phosphines de formule générale (I). Dans cette formule, R¿1?, R¿2? et R¿3?, qui peuvent être identiques ou différents, sont pris dans le groupe composé d'hydrogène, chlore, alkyle, aryle, alkylaryle and arylalkyle.
Bcf Llp
Ondeo Nalco Energy Services L.p.
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