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Manufacturing method of nano yttrium oxide powder

A technology of nano-yttrium oxide and its manufacturing method, which is applied in chemical instruments and methods, inorganic chemistry, rare earth metal compounds, etc., can solve the problems of increased cost and high requirements for production equipment, and meet the requirements of simple production equipment, good dispersion and uniform particle size Effect

Inactive Publication Date: 2003-04-16
JINAN UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The Chinese invention patent application with the application number 99114908 discloses a method for manufacturing nano-cobalt oxide, which is characterized in that surfactants are introduced into the chemical precipitation method to produce cobalt oxide with a particle size of 5-60 nm. It is carried out under heating conditions, so the requirements for production equipment are high, and the cost is greatly increased

Method used

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Experimental program
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Effect test

Embodiment 1

[0012] Embodiment 1: get and contain the industrial intermediate solution 50L of 0.1~0.2M concentration of yttrium ion, add the sodium carbonate solution 60L and oxyethylene sodium stearate 2~4KG of 20~40% by weight percentage, silicone oil 0.01~2.0KG, React at normal temperature and pressure to obtain white precipitate, wash, dry, and sinter at 200-600°C to obtain white nano-scale yttrium oxide powder with a particle size of 20-60nm.

Embodiment 2

[0013] Embodiment 2: get the industrial intermediate solution 60L that contains yttrium ion 0.1~0.2M concentration, add the sodium hydroxide solution 50L that is 20~40% by weight and oxyethylene octylphenyl ether 1.5~3.5KG, polyvinyl alcohol 0.05-1.5KG, stirring under normal temperature and pressure to obtain white precipitate, washing and drying to obtain white nano-scale yttrium oxide powder with a particle size of 10-30nm.

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Abstract

A process for preparing nano-class yttrium oxide powder features that under the existance of surfactant, the solution of yttrium ions reacts on the alkaline solution under normal temp. and pressure. Its advantages are fine granularity (10-60 nm), high dispersity and low cost.

Description

technical field [0001] The invention relates to a method for manufacturing nanometer materials, in particular to a method for manufacturing nanometer yttrium oxide powder. Background technique [0002] Yttrium oxide is mainly used in the manufacture of magnetic materials for microwaves and single crystals of important military materials; it can also be used as optical glass, ceramic material additives, high-brightness phosphors for large-screen TVs and other kinescope coatings, as well as film capacitors and Special refractory materials, as well as high-pressure mercury lamps, lasers, magnetic bubble materials for storage components, etc. The particle size of yttrium oxide powder material directly affects the quality, precision and grade of its downstream products. The particle size of yttrium oxide powder produced by the current technology can only reach about 0.5 μm, which is far from meeting the demand for high-quality products. The Chinese inventi...

Claims

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Application Information

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IPC IPC(8): C01F17/00
Inventor 李玲
Owner JINAN UNIVERSITY
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