Synthesis of an amorphous magnesia-alumina-aluminum phosphate support for use in resid upgrading catalyst

摘要

A method for preparing an amorphous magnesia-alumina-­aluminum phosphate catalyst support comprises the steps of:(a) forming an aqueous solution containing magnesium and aluminum ions and phosphoric acid;(b) precipitating amorphous magnesia-alumina-aluminum phosphate from said solution in the presence of a source of organic cation having a size equal to or larger than 2 Angstrom; and(c) separating the precipitate.