초록 ▼

A catalyst support is prepared by grinding a calcined alumina to a powder, compacting the powder at an elevated pressure, recracking the compressed powder to a predetermined size particle and acid extracting the particle. The support can be composited with catalytic components such as hydrogenation

A catalyst support is prepared by grinding a calcined alumina to a powder, compacting the powder at an elevated pressure, recracking the compressed powder to a predetermined size particle and acid extracting the particle. The support can be composited with catalytic components such as hydrogenation components and/or zeolites and used in a variety of hydrocarbon treating processes, such as hydrorefining, hydrodesulfurization, hydroconversion, reforming, and catalytic cracking.

대표청구항 ▼

A process for the preparation of a catalyst support which comprises the steps of: (a) grinding a calcined alumina to a powder having a diameter ranging from about 10 to about 400 mesh Tyler, and (b) extracting the ground alumina with an extractant comprising an acid selected from the group consistin

A process for the preparation of a catalyst support which comprises the steps of: (a) grinding a calcined alumina to a powder having a diameter ranging from about 10 to about 400 mesh Tyler, and (b) extracting the ground alumina with an extractant comprising an acid selected from the group consisting of inorganic acids and organic acids, for a time sufficient to remove at least 1 weight percent of said alumina from said ground alumina. The process of claim 1 or claim 2 wherein said calcined alumina of step (a) additionally comprises a minor amount of silica. A process for the preparation of a catalyst which comprises the steps of: compositing at least one catalytic component selected from the group consisting of (i) a crystalline aluminosilicate zeolite, (ii) a metal component selected from the group consisting of a metal or a compound of a metal from the group of IB, IIA, IIIB, IVA, IVB, VB, VIB, VIIB, VIII, rare earth metals and mixtures thereof, with an alumina support prepared by the steps which comprise: (a) grinding a calcined alumina to a powder, and (b) extracting the ground alumina with an extractant comprising an acid selected from the group consisting of inorganic acids and organic acids, for a time sufficient to remove at least one weight percent of said alumina from said ground alumina.