Fluorine-contained amorphous silica-alumina dry glue and preparation method thereof

• Main Authors: XU PEIQUAN, XU PEILI
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2012
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to fluorine-contained amorphous silica-alumina dry glue and a preparation method thereof. The fluorine-contained amorphous silica-alumina dry glue is prepared by a carbonization method and comprises the following components by weight percentage of 10-30wt% of silicon oxide and 1-6wt% of fluorine element, wherein the pore volume is 0.3-0.5ml/g; the specific surface area is 360-480m2/g; the infrared acid content is 0.4-0.6mmol/g; and the fluorine-contained amorphous silica-alumina dry glue is prepared by the following steps of neutralized gel forming reaction, harmonic beating, stabilizing, ageing, solid and liquid separation, washing and drying in sequence. The fluorine-contained amorphous silica-alumina dry glue has the advantages of high acidity, large specific surface area, uniform distribution of acidic center, concentrated distribution of aperture and good forming performance. A catalyst carrier prepared by taking the fluorine-contained amorphous silica-alumina dry glue as a raw mate