| 摘要 |
Isomerization of aromatic fraction comprising aromatic compound having eight carbon atoms per molecule, comprises contacting fraction with catalyst (containing EUO-structural-type zeolite) prepared by synthesizing EUO-structural-type zeolite having global atomic ratio of silicon/aluminum (5-45), dealuminating obtained zeolite in treatment by aqueous solution of mineral or organic acid and aluminum atoms, which are extracts of obtained zeolite, setting dealuminated zeolite with matrix, and depositing group VIII metal of periodic table of elements. Isomerization of an aromatic fraction comprising an aromatic compound having eight carbon atoms per molecule, comprises contacting fraction with catalyst (containing EUO-structural-type zeolite) prepared by synthesizing EUO-structural-type zeolite having a global atomic ratio of silicon/aluminum (5-45), dealuminating the obtained zeolite in a treatment by aqueous solution of mineral or organic acid and aluminum atoms (at least 10 mass%) which are extracts of the obtained zeolite, setting the dealuminated zeolite with a matrix, and depositing a group VIII metal of periodic table of elements, where the setting and the depositing steps are indifferent after dealuminating step. |
