Wear-resistant catalyst coating for ceramic filter tube

• Main Authors: WANG KUI, CHEN NAYUN, SHI XUANTING, WU HAO, SUN ZHENGTING
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TEXTILES; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention relates to a wear-resistant catalyst coating for a ceramic filter tube, and belongs to the technical field of denitration catalysts, and the wear-resistant catalyst coating for the ceramic filter tube is prepared by the following steps: step 1, preparing an active component solution; step 2, adding aluminum sol and a dispersing agent into deionized water while stirring, uniformly stirring, then adding the modified basalt fiber, uniformly stirring, then adding the active component solution, performing ultrasonic dispersion, finally adding a pore-enlarging agent, and uniformly stirring to obtain a precursor solution; and step 3, coating the precursor solution on the surface of a ceramic filter tube matrix, and drying and sintering to obtain the wear-resistant catalyst coating. The modified basalt fiber is introduced to improve the mechanical property and wear resistance of the coating, the surface of the modified basalt fiber is coated with a carborane layer and a hydrophilic hyperbranched polymer