A kind of preparation method of spherical nanometer yttrium oxide powder for ultraviolet lamp tube

A technology of nanometer yttrium oxide and production method, which is applied in the direction of preparation/treatment of yttrium oxide/yttrium hydroxide, rare earth metal compounds, rare earth metal oxide/hydroxide, etc., which can solve the problem of weak ability of dense bonding and blocking ultraviolet rays Radiation penetration, use effect decline and other problems, to achieve the effect of low light attenuation and high radiant flux

Active Publication Date: 2020-11-17
佛山优维士光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, most of the yttrium oxide powder particles currently used as protective films for ultraviolet lamps have a flaky rhomboid structure. Relatively weak, so the probability of sodium amalgam formation in ultraviolet lamps formed by yttrium oxide particles with a flaky diamond structure is greatly increased, resulting in premature blackening of the glass tube, hindering the penetration of ultraviolet radiation, and reducing the output of ultraviolet light. The effect is greatly reduced

Method used

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  • A kind of preparation method of spherical nanometer yttrium oxide powder for ultraviolet lamp tube

Examples

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no. 1 example

[0024] The preparation method of the spherical nanometer yttrium oxide powder used for the ultraviolet lamp comprises the following steps:

[0025] Step 1, mixing the yttrium oxide of the nanoscale flaky rhomboid powder and deionized water together, and stirring rapidly for 30 to 60 minutes, to prepare the first mixed solution;

[0026] Among them, the mass ratio of yttrium oxide to deionized water in the nanoscale flaky rhomboid powder is 1-11:92-101;

[0027] Step 2, mixing ethanolamine and ethyl acetoacetate together, stirring at a constant speed for 5 to 15 minutes, and preparing the first dropwise solution;

[0028] Wherein, the volume ratio of ethanolamine to ethyl acetoacetate is 1:0.95~1.15;

[0029] Step 3, mixing boric acid and glacial acetic acid together, stirring at a constant speed for 15 to 30 minutes, and preparing the second dropwise solution;

[0030] Wherein, the mass ratio of boric acid and glacial acetic acid is 1:0.95~1.15;

[0031] Step 4, adding the ...

no. 2 example

[0051] In this embodiment, the mass ratio of yttrium oxide to deionized water in the nanoscale flake rhomboid powder is 3:92. The volume ratio of ethanolamine to ethyl acetoacetate is 1:0.98. The mass ratio of boric acid to glacial acetic acid is 1:1.08. The mass ratio of the first dropping liquid, the second dropping liquid and the first mixed liquid is 15:35:78.

[0052] Refer to the first embodiment for the rest of the undescribed parts, and will not repeat them here.

no. 3 example

[0054] In this embodiment, the mass ratio of yttrium oxide to deionized water in the nanoscale flaky rhomboid powder is 2:99. The volume ratio of ethanolamine to ethyl acetoacetate is 1:1.07. The mass ratio of boric acid to glacial acetic acid is 1:1.12. The mass ratio of the first dropping liquid, the second dropping liquid and the first mixed liquid is 11:30:78.

[0055] Refer to the first embodiment for the rest of the undescribed parts, and will not repeat them here.

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Abstract

The invention relates to a preparation method of spherical nanometer yttrium oxide powder for an ultraviolet lamp tube. The method comprises the following steps that 1, after nanoscale sheet-shaped rhombus powder yttrium oxide and deionized water are mixed and quickly stirred for 30-60 minutes, a first mixed solution is prepared, wherein the mass ratio of nanoscale sheet-shaped rhombus powder yttrium oxide to the deionized water is (1-11):(92-101); 2, after ethanolamine and ethyl acetoacetate are mixed and stirred for 5-15 minutes at the constant speed, a first dropping solution is prepared, wherein the volume ratio of ethanolamine to ethyl acetoacetate is 1:(0.95-1.15); 3, after boric acid and glacial acetic acid are mixed and stirred for 15-30 minutes at the constant speed, a second dropping solution is prepared, wherein the mass ratio of boric acid to glacial acetic acid is 1:(0.95-1.15). The preparation method has the advantages of high radiation flux and low luminance decrease.

Description

technical field [0001] The invention relates to a method for preparing spherical nanometer yttrium oxide powder used for ultraviolet lamp tubes. Background technique [0002] As we all know, ultraviolet germicidal lamps are widely used in water treatment, air purification, and various space and surface disinfection fields. A layer of nano-yttrium oxide coating is used as a protective film to improve the maintenance rate of ultraviolet radiation flux to achieve better sterilization and disinfection. [0003] However, most of the yttrium oxide powder particles currently used as protective films for ultraviolet lamps have a flaky rhomboid structure. Relatively weak, so the probability of sodium amalgam formation in ultraviolet lamps formed by yttrium oxide particles with a flaky diamond structure is greatly increased, resulting in premature blackening of the glass tube, hindering the penetration of ultraviolet radiation, and reducing the output of ultraviolet light. The effec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F17/10C01F17/218C03C17/23
CPCC01F17/206C01P2004/22C01P2004/32C03C17/23C03C2217/228
Inventor 吴文东何维江炜
Owner 佛山优维士光电科技有限公司
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