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Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Способ выделения изопрена из C-углеводородной фракции, содержащей 2-метил-1-бутен-3-ин, путем ректификации с выводом углеводородной фракции, содержащей ацетиленовые углеводороды, в качестве дистиллята и изопрена в виде кубового продукта, отличающийся тем, что, с целью повышения чистоты продукта, в качестве дистиллята отбирают углеводородную фракцию, содержащую азеотроп 2-метил-1-бутен-3-ина с изопреном, при концентрации изопрена в ней 12 - 96 мол.%.The method of separation of isoprene from the C-hydrocarbon fraction containing 2-methyl-1-butene-3-in, by distillation with the withdrawal of the hydrocarbon fraction containing acetylene hydrocarbons, as a distillate and isoprene in the form of a bottom product, characterized in that increase the purity of the product; a hydrocarbon fraction containing the azeotrope of 2-methyl-1-butene-3-yna with isoprene is taken as a distillate at a concentration of isoprene in it of 12–96 mol%.
SU2002049/04A1974-03-071974-03-07
METHOD FOR ISOPRENE ISOLATION FROM C-HYDROCARBON FRACTION
SU610368A1
(en)
Process for the separation of trimethyl phosphite from a trimethyl phosphite, starting materials used for the production of the trimethyl phosphite and by-products containing reaction mixture