Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of ozone oxidation catalyst

A technology of ozone oxidation and catalyst, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, molecular sieve catalysts, etc., can solve problems such as limited application, secondary pollution, and difficulty in recycling catalysts. The preparation method is simple, not easy to lose, and the effect of improving the oxidation-reduction potential of ozone

Active Publication Date: 2018-09-11
BLUESTAR LEHIGH ENG INST CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can improve the treatment effect of ozone, there are problems in the use of homogeneous catalysts that the catalyst is difficult to recover, and impurities are introduced to cause secondary pollution, which limits its application in water treatment to a large extent.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, a kind of ozone oxidation catalyst preparation method, its steps are as follows:

[0023] (1) After impregnating granular activated carbon with 1wt% inorganic acid solution for 48h, filter and wash with deionized water until neutral;

[0024] (2) The activated carbon treated in step (1) was impregnated with 30wt% inorganic alkali solution for 12 hours, filtered, washed with water until neutral; put into an oven for drying, and set aside;

[0025] (3) Prepare a salt solution containing iron, molybdenum, tantalum, potassium, and manganese ions, wherein the molar ratio of iron, molybdenum, tantalum, potassium, and manganese is 1:1:1:1:1, and the pH of the adjusted solution is 2;

[0026] (4) Add activated carbon to the solution prepared in step (3), and soak at 20°C for 24 hours;

[0027] (5) filter, isolate the activated carbon impregnated with metal ions, and dry;

[0028] (6) Move the activated carbon loaded with metal active components into a box-type r...

Embodiment 2

[0029] Embodiment 2, a kind of ozone oxidation catalyst preparation method, its steps are as follows:

[0030] (1) After impregnating Y molecular sieve with 20wt% inorganic acid solution for 12h, filter and wash with deionized water until neutral;

[0031] (2) impregnating the Y molecular sieve treated in step (1) with 1wt% inorganic alkali solution for 48 hours, filtering, and washing until neutral; put it in an oven for drying, and set aside;

[0032] (3) preparation contains the salt solution of iron, molybdenum, tantalum, potassium, manganese ion, and wherein iron molybdenum tantalum potassium manganese mol ratio is 1:10:10:10:10, and the pH of regulating solution is 7;

[0033] (4) Add Y molecular sieves to the solution prepared in step (3), and soak at 60°C for 24 hours;

[0034] (5) filter, isolate the Y molecular sieve impregnated with metal ions, and dry;

[0035] (6) Move the Y molecular sieve loaded with metal active components into a box-type resistance furnace, ...

Embodiment 3

[0036] Embodiment 3, a kind of preparation method of ozone oxidation catalyst is characterized in that: its steps are as follows:

[0037] (1) Immerse granular activated carbon or Y molecular sieve with 15wt% inorganic acid solution for 24 hours, filter, and wash with deionized water until neutral;

[0038] (2) The activated carbon or Y molecular sieve treated in step (1) is impregnated with 20wt% inorganic alkali solution for 24 hours, filtered, washed until neutral; put into an oven for drying, and set aside;

[0039] (3) Prepare a salt solution containing iron, molybdenum, tantalum, potassium, and manganese ions, wherein the molar ratio of iron, molybdenum, tantalum, potassium, and manganese is 1:6:4:5:6, and the pH of the adjusted solution is 4;

[0040] (4) Add activated carbon or Y molecular sieve to the solution prepared in step (3), and soak at 50°C for 24 hours;

[0041] (5) filter, isolate activated carbon or Y molecular sieve impregnated with metal ions, and dry; ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of an ozone oxidation catalyst. Granule activated carbon or a Y molecular sieve is adopted as a carrier, ferric, molybdenum, tantalum, potassium and manganic oxides are adopted as active components, and the multi-phase catalyst is prepared through carrier selection-solution preparation-dipping-drying-calcination. The load type catalyst is high in activity and low in cost, the preparation method is simple and has the high catalysis performance, good in stability and capable of being repeatedly used and is of great significance in wide application of the ozone catalytic ozonation technology.

Description

technical field [0001] The invention relates to a method for preparing an ozone oxidation catalyst, specifically a supported catalyst using activated carbon or Y molecular sieve as a carrier, and oxides of iron, molybdenum, tantalum, potassium and manganese as active components and a preparation method thereof . Background technique [0002] At present, the traditional ozone oxidation method is to make a solution of a certain concentration of the catalyst and add it to the waste water. The catalyst will catalyze in the form of ions, and then pass through the ozone to carry out the catalytic oxidation reaction. Although this method can improve the treatment effect of ozone, there are problems in the use of homogeneous catalysts that the catalyst is difficult to recover, and impurities are introduced to cause secondary pollution, thus limiting its application in water treatment to a large extent. Therefore, it has become the focus of attention to catalyze the oxidation of ozo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889B01J29/16C02F1/78C02F101/38
CPCB01J23/002B01J23/8898B01J29/166B01J2229/18B01J2523/00C02F1/725C02F1/78C02F2101/38B01J2523/13B01J2523/57B01J2523/68B01J2523/842B01J2523/72
Inventor 王开春杨志林田凤蓉张彬彬刘娟王克云崔庆兰
Owner BLUESTAR LEHIGH ENG INST CO LTD