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OwnerEvgeny Vasilievich Bart, Oleg Efimovich Batalin +4inventors
InventorsEvgeny Vasilievich Bart, Oleg Efimovich Batalin, Andrian Petrovich Troitsky, Nina Andreevna Skachkova, Vladimir Mikhailovich Lebedev, Rimma Petrovna Trifonova
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A method of processing high-boiling byproducts of isoprene production obtained at the first stage of isoprene production by the dioxane method into isoprene, isobutylene and formaldehyde which comprises the catalytic splitting of said products in the vapor phase in the presence of water with a weight ratio therebetween of 1:1/2, respectively, at 250-290.degree. C over aluminum oxide as catalyst. The resulting vapor mixture is catalytically split at 315.degree.-360.degree. C over calcium-phosphate catalyst with the formation of a reaction mixture containing isoprene, isobutylene and formaldehyde.
A method of processing high-boiling byproducts obtained at the first stage of isoprene production by the dioxane method into isoprene, isobutylene and formaldehyde comprising catalytically splitting said byproducts in the vapour phase in the presence of water with a weight ratio therebetween of 1:1+2, respectively, at 250.degree.-290.degree. C over aluminium oxide as catalyst to obtain a vapour mixture;
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