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Copper oxide powder preparation method

A technology of copper oxide powder and copper powder, which is applied in the direction of copper oxide/copper hydroxide, etc., can solve the problems of no authorized patents, etc., and achieve the effects of convenient operation, continuous and automatic production, and simple preparation methods

Inactive Publication Date: 2009-03-11
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology of preparing copper oxide powder by roasting copper powder in a fluidized roasting furnace has no precedent in China at present, and there is no report abroad, and there is no authorized patent in this regard at home and abroad.

Method used

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  • Copper oxide powder preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Evenly add copper powder into the fluidized roasting furnace, blow into the fluidized roasting furnace with 25% oxygen-enriched air, control the roasting temperature to 780°C, linear velocity to 1.5m / s, and material handling capacity to 1.24t / d.m 2 Oxidation roasting is carried out under certain conditions, and the CuO content of the obtained copper oxide powder is 98%.

Embodiment 2

[0015] Evenly add copper powder into the fluidized roasting furnace, blow into the fluidized roasting furnace with 28% oxygen-enriched air, control the roasting temperature to 750°C, linear velocity to 1.5m / s, and material handling capacity to 1.32t / d.m 2 Oxidation roasting is carried out under certain conditions, and the CuO content of the obtained copper oxide powder is 98.3%.

Embodiment 3

[0017] Add copper powder evenly into the fluidized roasting furnace, blow into the fluidized roasting furnace with 28% oxygen-enriched air, control the roasting temperature to 720°C, linear velocity to 1.5m / s, and material handling capacity to 1.4t / d.m 2 Oxidation roasting is carried out under certain conditions, and the CuO content of the obtained copper oxide powder is 99%.

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Abstract

The invention discloses a method for preparing copper oxide powder. The method is characterized in that copper power is used as a raw material; air with the concentration of enriched oxygen of between 25 and 28 percent is blew into a boiling roasting oven; the roasting temperature is controlled between 700 and 780 DEG C; the linear speed is 1.5 m / s; and the handling capacity of the material is between 1.24 and 1.4 t / d.m<2>, thereby obtaining the high-grade copper oxide powder with CuO content of between 98 and 99 percent. The preparation method has the advantages of simple and convenient operation, simple equipment, small investment, rapid effect, no pollution in the production process, good product quality and high productivity, thereby facilitating the realization of production continuity and automation.

Description

technical field [0001] The invention relates to a method for preparing copper oxide powder, more specifically, relates to a method for preparing copper oxide powder by boiling and roasting copper powder. technical background [0002] CuO has attracted people's attention because of its important properties and wide applications. In many chemical reactions, CuO as a heterogeneous catalyst exhibits high catalytic activity, such as the decomposition of perchloric acid, N 2 Degradation of O, selective reduction of NO and oxidation of CO, carbohydrates and phenols in supercritical water. At the same time, as an important transition metal oxide with a narrow band (Eg=1.2ev), CuO is a material with abnormal properties such as high-temperature superconductivity, huge magneton resistance and three different magnetic phases. CuO is also used in red, green and blue pigments for enamel, polishing agents for optical glass, pesticides, fungicides, metallurgical reagents, anti-wrinkle pai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02
Inventor 张荣良
Owner JIANGSU UNIV OF SCI & TECH