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Preparation method of high-purity copper oxide powder material

A technology of copper oxide powder and bulk material, applied in copper oxide/copper hydroxide and other directions, can solve the problems of complex process flow, high preparation cost, large amount of chemical agent, etc., and achieve the effect of shortening the process flow

Inactive Publication Date: 2014-02-05
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High preparation cost, complex process flow, large amount of chemical agents and serious environmental pollution have become the fundamental reasons restricting the industrialization of the above methods

Method used

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  • Preparation method of high-purity copper oxide powder material
  • Preparation method of high-purity copper oxide powder material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) Remove the varnish from the Ф2mm red copper wire, and after cleaning, cut it into small pieces with a length of 5-10mm and a weight of 200Kg.

[0021] 2) Put the prepared small pieces into a rotary furnace inlaid with a pure copper liner for heating, and the thickness of the liner is 12mm; put 600Kg of red copper grinding balls, of which 120Kg for a diameter of 60mm, 180Kg for a diameter of 45mm, and 180Kg for a diameter of 25mm The weight is 300Kg; the load in the furnace is between 20% and 35%; the oxidation temperature is 500°C; the rotating speed of the rotary furnace is 20r / min; the oxidation time is 240min; 15m 3 / h.

[0022] 3) Use a vibrating screen to separate the grinding balls from the copper oxide powder, and obtain the copper oxide powder material after cooling.

[0023] The product obtained in this embodiment is characterized by X-ray diffraction spectrum, as figure 1 shown. It can be seen from the figure that there is no impurity in the product and...

Embodiment 2

[0025] 1) Clean the red copper rod of Ф10mm with water and cut it into small pieces with a length of 5-10mm and a weight of 500Kg with a shear.

[0026] 2) Put the prepared small pieces into a rotary furnace inlaid with a high-temperature-resistant stainless steel (310s) lining plate for heating, and the thickness of the lining plate is 10mm; put 500Kg of copper balls, of which the weight of 60mm in diameter is 100Kg, and the weight of 45mm in diameter is 150Kg. The weight is 250Kg with a diameter of 25mm; the load in the furnace is between 20% and 35%; the oxidation temperature is 900°C; the rotation speed of the rotary furnace is 5r / min; the oxidation time is 600min; Oxygen flow rate is 10m 3 / h.

[0027] 3) Use a vibrating screen to separate the grinding balls from the copper oxide powder, and obtain the copper oxide powder material after cooling.

[0028] The product obtained in this embodiment is characterized by X-ray diffraction spectrum, as figure 2 shown. It can ...

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Abstract

The invention discloses a method for preparing a high-purity copper oxide powder material, belonging to the field of high-performance functional materials. The raw material for preparing the high-purity copper oxide powdery material is red copper wires or red copper rods. The preparation method comprises the steps of cutting recovered waste red copper wires or red copper rods into small pieces, heating the small pieces in a rotary furnace embedded with a pure copper lining plate or high-temperature-resisting stainless copper lining plate, putting red copper balls into the rotary furnace to serve as grinding balls at the same time, starting to inflate oxygen into the rotary furnace when the rotary furnace is heated to a certain temperature to ensure that copper is in full contact with the oxygen under a high-temperature condition to generate an oxidation reaction, and fully crushing copper oxide generated through the reaction under the action of the grinding balls at the same time, thereby obtaining the high-purity copper oxide powder material. The method disclosed by the invention is simple in production process and low in production cost, and the oxidation of copper and the crushing of copper oxide are performed at the same time, so that the process flow is effectively shortened. Impurities are not introduced during processing and preparation, so that the obtained copper oxide powder material is high in purity which can reach more than 99%.

Description

Technical field: [0001] The invention provides a method for preparing a high-purity copper oxide powder material, which belongs to the field of high-performance functional materials. Background technique: [0002] Copper oxide is an important oxide of transition metal elements, which has good catalytic and electrode activity. Widely used in glass, ceramics, fuel, catalyst, and the manufacture of other copper salts. As a burning rate catalyst for solid rocket propellants, copper oxide can not only increase the burning rate and reduce the pressure index, but also has a good catalytic effect on AP composite propellants; in addition, because copper oxide has a high degree of complete oxidation of carbon monoxide Catalytic activity is expected to be used as a purification material for automobile exhaust. The intrinsic effect of high-purity copper oxide powder material is more obvious, and it has stronger functionality than ordinary powder. Therefore, the preparation of high-pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02
Inventor 刘彬彬
Owner HUNAN UNIV
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