Aluminum phosphate, preparation method and application thereof, and preparation method of o-hydroxyanisole

• Main Authors: ZOU XIUJING, SHANG XINGFU, DING WEIZHONG, REN XINFENG, ZHAO HONGBO, LI LIHU, LU XIONGGANG, QIAO HONGBO, WANG XUEGUANG, REN JIA'AN, MA WEINING
• Format: Patent
• Language: Chinese; English
• Published: 03.12.2021
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of catalyst preparation, and particularly relates to an aluminum phosphate, a preparation method thereof, and a preparation method of o-hydroxyanisole. The preparation method provided by the invention comprises the following steps: mixing pseudo-boehmite, a soluble phosphorus source, a polar solvent and strong acid to obtain aluminum phosphate hydrosol, wherein the atomic molar ratio of aluminum element in the pseudo-boehmite to phosphorus element in the phosphorus source is greater than or equal to 1: 0.5; adjusting the pH value of the aluminum phosphate hydrosol to be larger than or equal to 6, so as to obtain aluminum phosphate hydrogel; drying the aluminum phosphate hydrogel to obtain an aluminum phosphate precursor; and calcining the aluminum phosphate precursor to obtain the aluminum phosphate. The aluminum phosphate provided by the invention has high activity and high stability when being used for catalyzing the mono-etherification reaction of catechol and d