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

Spherical sepiolite ozone oxidation catalyst and its preparation method and application

A technology of ozone oxidation and sepiolite, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as investment and source cost of ozone oxidation catalysts, and achieve the effect of reducing cost input

Active Publication Date: 2019-10-18
KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a spherical sepiolite ozone oxidation catalyst and its preparation method and application. The method of the present invention selects cheap and easy-to-obtain raw materials, and solves the source and cost of the ozone oxidation catalyst in sewage treatment. input problem

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Spherical sepiolite ozone oxidation catalyst and its preparation method and application
  • Spherical sepiolite ozone oxidation catalyst and its preparation method and application
  • Spherical sepiolite ozone oxidation catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The preparation method of embodiment 1 ozone oxidation catalyst

[0035] (1) Add the sepiolite powder into the raw material tank, and then pre-dry it with hot air at about 100°C for 3 hours.

[0036] (2) Use a spheronizer for spheronization, select a 1-3m spheroidal disc, and continuously add 325-mesh sepiolite powder to the 30rpm spun disc at a feeding rate of 100kg / h, and at the same time, according to 50kg / L Spray water into the rolling disc at a high speed, and when a small ball with a diameter of about 1mm is obtained, take it out for use to obtain the desired ball species.

[0037] (3) Add ball seeds and sepiolite powder continuously in the rolling disk, adjust the rolling disk rotating speed to be 40rpm and the water spray rate to be 60kg / L, so that the particles have a better sphericity, and the particle size is 3- When within the range of 5mm, start to collect materials continuously to obtain spherical material balls.

[0038](4) The collected pellets were pl...

Embodiment 2

[0040] The preparation method of embodiment 2 ozone oxidation catalyst

[0041] (1) Add the sepiolite powder into the raw material tank, and then pre-dry it with hot air at about 100°C for 3 hours.

[0042] (2) Use a spheronizer to carry out spheronization, select a 1-3m spheroidal disk, and feed it into the opened spheroidal disk at a feeding rate of 100kg / h, the disk speed is 30rpm, and continuously add 200 mesh sepiolite powder, and at the same time according to Spray water into the rolling disc at a rate of 50kg / L, and when a small ball with a diameter of about 1mm is obtained, take it out for use to obtain the desired ball species.

[0043] (3) Add ball seeds and sepiolite powder continuously in the rolling disk, adjust the rolling disk rotating speed to be 40rpm and the water spray rate to be 60kg / L, so that the particles have better sphericity, and the particle size is between 1- When within the range of 9mm, start to collect materials continuously to obtain spherical ...

Embodiment 3

[0046] The preparation method of embodiment 3 ozone oxidation catalyst

[0047] (1) Add the sepiolite powder into the raw material tank, and then pre-dry it with hot air at about 100°C for 3 hours.

[0048] (2) Use a spheronizer for spheronization, select a 1-3m spheroidal disc, and feed it into the opened spheronian disc at a feeding rate of 100kg / h at a speed of 30rpm, continuously add 325 mesh sepiolite powder, and at the same time use 50kg / L Spray water into the rolling disc at a high speed, and when a small ball with a diameter of about 1mm is obtained, take it out for use to obtain the desired ball species.

[0049] (3) Add ball seeds and sepiolite powder continuously in the rolling disk, adjust the rolling disk rotating speed to be 40rpm and the water spray rate to be 60kg / L, so that the particles have a better sphericity, and the particle size is 3- When within the range of 5mm, start to collect materials continuously to obtain spherical material balls.

[0050] (4) ...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle size (mesh)aaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a spherical sepiolite ozone oxidation catalyst, which includes the following steps: mixing sepiolite powder and water to prepare ball species with a particle size of 1-2 mm; mixing the ball species, sepiolite powder and water , prepare spherical balls with a particle size of 1-9mm; subject the balls to a constant temperature treatment at 60-90°C for 10-24h, and then calcine and activate them at 450-550°C for 2-5h to obtain an ozone oxidation catalyst. The invention also provides a spherical sepiolite ozone oxidation catalyst prepared by the above preparation method, and the catalyst is used in ozone oxidation reaction. The method of the invention selects cheap and easy-to-obtain raw materials and solves the problems of ozone oxidation catalyst source and cost investment in sewage treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a spherical sepiolite ozone oxidation catalyst and its preparation method and application. Background technique [0002] Ozone has a strong oxidation ability and can directly oxidize and degrade organic matter, but its oxidation selectivity restricts the ability to deeply mineralize organic matter in sewage. In order to improve the utilization rate of ozone and the ability of advanced sewage treatment, the method of adding catalyst to the ozone oxidation sewage system is generally adopted. The catalyst has the function of catalyzing the decomposition of ozone. Ozone is converted into hydroxyl radicals with stronger oxidizing properties. Hydroxyl radicals can basically oxidize all organic matter and have the ability to treat sewage in depth. [0003] The commonly used catalysts are divided into two types: homogeneous and heterogeneous. Homogeneous catalysts are generally metal sa...

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): B01J21/16B01J37/08B01J35/08C02F1/78C02F1/72C02F101/32C02F101/34C02F101/38
CPCC02F1/725C02F1/78B01J21/16B01J37/08C02F2101/34C02F2101/345C02F2101/322C02F2101/38B01J35/51
Inventor 高兴敏吴铎吴张雄
Owner KOOVINE ENVIRONMENTAL PROTECTION TECH CO LTD