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Oxide ceramic powder capable of perpetually releasing active oxygen when suffering from water

A technology of oxide ceramics and oxides, which is applied in the professional field of inorganic non-metals, can solve problems such as high energy consumption, and achieve the effect of long service life and slow hydrolysis speed

Inactive Publication Date: 2009-10-28
BEIJING HUADE MAITUO TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this patented product is the higher energy consumption

Method used

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  • Oxide ceramic powder capable of perpetually releasing active oxygen when suffering from water
  • Oxide ceramic powder capable of perpetually releasing active oxygen when suffering from water
  • Oxide ceramic powder capable of perpetually releasing active oxygen when suffering from water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Dolomite is sintered at a temperature of 800-1100° C., and the holding time is 4 hours; surface active agent aqueous solution is used for surface treatment, and hydroxymethyl cellulose is used to make a 1% aqueous solution, and the sintered powder is soaked and then dried.

[0045] X-ray diffraction peaks see figure 2 .

[0046] The calcined powder can be quantitatively analyzed by diffraction peaks:

[0047] CaO~28%, MgO~43%, CaCO3~22%, SiO2~7%

[0048] Use 5 grams of this powder, dip into 200ml to test the pH, and get the result of pH10. After 300 days, the pH can still reach 9-10.

Embodiment 2

[0050] Sinter magnesite ore at a temperature of 700-900°C and hold for 6 hours; use acrylic resin to dissolve it in butyl acetate at a ratio of 2:8, treat the surface of the ore powder, and then bake at 260°C. After baking, the ceramic powder is placed indoors to dry.

[0051] Use 5 grams of this powder, dip into 200ml to test the pH, and get the result of pH10. After 300 days, the pH is still above 9.

Embodiment 3

[0052] Embodiment 3 releases the inspection of active oxygen and the sterilization effect inspection

[0053] The obtained ceramic powder of the present invention is tested for releasing active oxygen, using the chemiluminescence test method provided by the chemiluminescence instrument. The test results obtained are as follows ( image 3 ):

[0054] The resulting ceramic powder of the present invention Example 1 was subjected to a bactericidal and algae-killing performance test, and the results are shown in Table 1.

[0055] Table 1 Sterilization experiment of putting ceramic powder

[0056] Numbering

Dosage (g / L)

Settling time (min)

Total number of bacteria (pcs / ml)

Coliform bacteria (unit / L)

1

0

——

＞100

＞100

2

5

10

0

0

3

10

10

0

0

4

5

30

0

0

5

5

600

0

0

[0057] Note: No. 1 is ...

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Abstract

The invention discloses inorganic ceramic powder and discloses the performance of the inorganic ceramic powder for slowing hydrolyzing and releasing active oxygen when suffering from water and a preparation method thereof. Through controlling the sintering temperature and time and performing surface packaging treatment by different methods, the hydrolization process can be ensured to be performed slowly and the active oxygen can be released for a long time, thereby the application value of the powder on engineering is ensured. The release of the active oxygen can provide a powerful oxygenation mechanism for sterilizing, killing algae and lowering the pollution in water (lowering the COD index). When the powder is used for preparing various other water treatment filter materials, the range of the powder applied to the field of water treatment engineer can be expanded.

Description

technical field [0001] The invention relates to the professional field of inorganic non-metal, which is sintered by natural ore, contains alkaline earth metal, releases active oxygen during hydrolysis, can be used in various water treatment systems, and can also be used as the main component to prepare various Water treatment ceramic filter material. background of the invention [0002] In recent years, foreign countries have paid special attention to some new oxide ceramics, which are characterized in that they can release active oxygen under certain conditions and play an oxidative catalytic role in the degradation of organic matter. Used to purify the environment, the effect is very good. For example, 14CaO7Al 2 o 3 To form a complex unit cell, under certain conditions, free oxygen in the structure may be released and become active oxygen, while the structure of the unit cell remains unchanged (US6,818,192B2)[8]. When the sintering environment is different, the concen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/01C04B35/14C04B35/626
Inventor 时玉萍林乐耘刘少峰周伟
Owner BEIJING HUADE MAITUO TECH DEV
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