Method of preparation of solid catalyst by ozone heterogeneous oxidation

Abstract

The invention relates to a method of preparation of solid catalyst by ozone heterogeneous oxidation, belongs to the technical field of environmental protection and chemical engineering catalysts. Activated carbon, carnallite, potassium feldspar, magnesium borate ore, aluminum hydroxide and lapis lazuli are adopted as carriers after subjecting to bore-reaming by lithium hypochlorite and di-(acetylacetone) beryllium, activating treatment is conducted by the subjoining of surfactant dimethyl cetyl alkyl ethyl ammonium ethyl sulphate under the action of ultrasonic waves, the carriers are subject to hydrothermal reaction in a hydrothermal reaction kettle with a composite mineralizer borax and potassium sulfate, precursors of catalytic coagent acetyl acetone samarium, tri-(4, 4, 4-trifluoro-1-(2-thiophene)-1, 3-diacetyl) europium, tri-(6, 6, 7, 7, 8, 8, 8-sevoflurane-2, 2-dimethyl-3, 5-octylene diketone) dysprosium (III), tri-(trifluoromethane sulfonyl imine) ytterbium, cobalt gluconate, L-aspartate amino acid molybdenum, catechol ethylenediamine tungsten complex and tetrachloro dihydrate iridium under the action of emulsifying agent octadecyl di-hydroxyethyl methyl ammonium sulfate, after stoving, the moisture content is removed, and a solid catalyst by ozone heterogeneous oxidation is obtained by firing in a muffle furnace.

Description

technical field [0001] The invention relates to a preparation method of a solid catalyst for ozone heterogeneous oxidation, which belongs to the technical fields of environmental protection and chemical catalysts. Background technique [0002] Ozone oxidation technology utilizes the strong oxidation ability of ozone, which can oxidize and decompose many organic pollutants, and is widely used in wastewater treatment. Ozone catalytic oxidation technology is divided into ozone homogeneous catalytic oxidation and ozone heterogeneous catalytic oxidation. Ozone homogeneous catalytic oxidation has catalysts that are difficult to separate, recycle and reuse, and the low utilization rate of ozone leads to high water treatment operation costs. Ozone heterogeneous catalytic oxidation technology has the advantages of easy separation and recovery of catalysts and reusable use, high ozone utilization rate, and high removal rate of organic pollutants, which reduces water treatment. The ad...

AI Technical Summary

Problems solved by technology

Due to the wide variety of pollutants and the complex chemical composition of wastewater, it will have adverse effects on the performance of the catalyst, such as adsorption and anti-toxicity, and the catalyst will easily lose its catalytic activity.

At present, the main problems of the preparation method of ozone heterogeneous oxidation solid catalyst are small adsorption capacity, low adsorption selectivity, poor toxicity resistance of the catalyst, and easy loss of catalytic activity; development and use of multi-component porous carriers to increase the adsorption of the catalyst Capacity, enhanced adsorption selectivity, using rare earth metals, transition metals and noble metals to form multi-metal catalytic active centers to improve catalyst anti-toxicity and catalytic activity The preparation method of ozone heterogeneous oxidation solid catalyst has greater environmental benefits and higher Practical value