Method for manufacturing nano-oxide powder

A nano-oxide and powder technology, applied in the field of nano-oxide powder preparation, can solve the problems of a large amount of deionized water, serious environmental pollution, long production process, etc., and achieve the effects of good dispersibility, high purity and large production capacity

Active Publication Date: 2008-08-20
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method requires a large amount of deionized water, which causes serious environmental pollution, and the production process is complicated. The product is a mechanical mixture of indium oxide and tin oxide, which belongs to two phases, and the final product contains Cl - , SO 4 - Negative ions exist

Method used

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  • Method for manufacturing nano-oxide powder

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Experimental program
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Effect test

specific Embodiment approach 2

[0036] Nano In 2 o 3 preparation

[0037] 1. Indium ingot with a purity of 99.99%.

[0038] 2. Melt the indium ingot and heat it to 200°C with electricity.

[0039] 3. Press the molten indium into the reactor. A mixed gas of nitrogen and oxygen was introduced into the reactor.

[0040] 4. Apply a voltage of 50-1000V and a current of 5-2000A to the electrodes and the reactor.

[0041] 5. Turn on the powder collection system.

[0042] The indicators of the products produced are shown in Table 2.

[0043] Table 2 Nano In 2 o 3 Product Specifications

[0044]

specific Embodiment approach 3

[0045] Preparation of Nano-ITO

[0046] 1. Press In 2 o 3 :SnO 2 =9:1 ratio, converted into the weight of indium and tin.

[0047] 2. Melt indium tin to make alloy.

[0048] 3. Put the alloy into the melter and heat it to about 220°C with electricity.

[0049] 4. Press the molten indium-zinc alloy into the reactor.

[0050] 5. Apply voltage to the reactor, the voltage is 50-1000V, and the current is 50-1000A. Nitrox mixed gas into the reactor

[0051] 6. Turn on the powder collecting system.

[0052] The indicators of the products produced are shown in Table 3.

[0053] Table 3 Nano-ITO product technical indicators

[0054]

specific Embodiment approach 4

[0055] Nano IZO powder

[0056] 1. Press indium zinc into In 2 o 3 : The ratio of ZnO=93:7 is converted into the weight of indium and zinc by weight and added to the melting furnace.

[0057] 2. Heat the melter to about 620°C to melt the indium-zinc alloy.

[0058] 3. Press the molten indium-zinc alloy into the reactor.

[0059] 4. Apply voltage to the reactor, the voltage is 50-1000V, and the current is 50-1000A. Pure oxygen was introduced into the reactor.

[0060] 5. Turn on the powder collection system.

[0061] Powder product index see Table 4

[0062] Table 4 Nano-IZO product technical indicators

[0063]

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Abstract

The invention discloses a nanometer oxide powder preparation method, which is characterized in that: melting the pure metal or the alloy made from two or more than two metals in a certain proportion; putting the fused metal into current voltage through the melter, reactor and the powder collector, voltage ranging from 50 to 1000 V, current ranging from 5 to 2000 A; atomization, gasification and oxidation under resistance heat, high magnetic field and oxidation, after suddenly cooling treatment single nanometer oxide is formed; the reaction atmosphere is pure oxygen, oxygen-argon mixture, oxygen-nitrogen mixture, atmosphere or stream, CO2 and other mixed gas; fast condensation refers to condensation by liquid nitrogen, condensation by cooling water, high-speed gas condensation, high-speed liquid-gas condensation and high heat conduction metal condenser condensation. The nanometer oxide powder preparation method has the advantages of high efficiency and high capacity. The product has the advantages of high purity, high crystallization, sound dispersion and strong fluidity.

Description

technical field [0001] The invention relates to a method for preparing nano-oxide powder, in particular to a method for manufacturing single-phase or multi-phase grain nano-oxide powder in which a single nano-oxide or two or more oxides are fused with each other. Background technique [0002] Transparent conductive materials composed of metal oxides are referred to as TCO. They are used for energy-saving light-transmitting glass, light-transmitting conductive electrodes of various flat-panel displays, low-emission glass (Low-E Window) that can reflect infrared rays, etc., and have become transparent conductive materials. The largest application field of the material. Tin-doped indium oxide (hereinafter referred to as ITO) targets are made of oxides such as indium tin, and a conductive transparent film is obtained through a magnetron sputtering process. It is used for submarines, tanks, aviation and stealth materials in national defense; it is used in flat-panel TVs for civil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G1/02C03C3/00C03C12/00C04B35/626
Inventor 王政红张智强
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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