Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of micro-nano CuO powder

A micro-nano and powder technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high cost and complicated preparation process of copper oxide powder, and achieve low cost and avoid Wastewater treatment stage, environmental friendly effect

Pending Publication Date: 2021-01-05
XI'AN POLYTECHNIC UNIVERSITY
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of micro-nano CuO powder, which solves the problem of complicated preparation process and high cost of existing copper oxide powder

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The preparation method of a kind of micronano CuO powder of the present invention, specifically implement according to the following steps:

[0019] Step 1, put the electrolytic copper plate into the concentrated ammonia water, carry out the dissolution reaction, and at the same time pass air into the concentrated ammonia water to obtain a mixed solution;

[0020] The size of the electrolytic copper plate is 4cm×3.5cm×0.1cm, the mass concentration of concentrated ammonia water is 25%, the molar ratio of electrolytic copper plate to concentrated ammonia water is 1:2.5~3, the reaction temperature is 25°C~30°C, and the reaction time is 1h ~2h, the flow rate of air is 300mL / min during the reaction;

[0021] Step 2, feed CO into the mixed solution obtained after step 1 2 , forming a solid precipitate;

[0022] CO 2 The flow rate is 180mL / min-250mL / min, with CO 2 The purity is greater than or equal to 99.95%, and the feeding time is 1h to 2h;

[0023] In step 3, the soli...

Embodiment 1

[0028] The preparation method of a kind of micronano CuO powder of the present invention, specifically implement according to the following steps:

[0029] Step 1, put the electrolytic copper plate into the concentrated ammonia water, carry out the dissolution reaction, and at the same time pass air into the concentrated ammonia water to obtain a mixed solution;

[0030] The size of the electrolytic copper plate is 4cm×3.5cm×0.1cm, the mass concentration of concentrated ammonia water is 25%, the molar ratio of electrolytic copper plate and concentrated ammonia water is 1:2.5, the reaction temperature is 25°C, the reaction time is 1h, and the The air flow rate is 300mL / min;

[0031] Step 2, feed CO into the mixed solution obtained after step 1 2 , forming a solid precipitate;

[0032] CO 2 The flow rate is 180mL / min, with CO 2 The purity is greater than or equal to 99.95%, and the feeding time is 2 hours;

[0033] In step 3, the solid precipitate in step 2 is suction filte...

Embodiment 2

[0038] The preparation method of a kind of micronano CuO powder of the present invention, specifically implement according to the following steps:

[0039] Step 1, put the electrolytic copper plate into the concentrated ammonia water, carry out the dissolution reaction, and at the same time pass air into the concentrated ammonia water to obtain a mixed solution;

[0040] The size of the electrolytic copper plate is 4cm×3.5cm×0.1cm, the mass concentration of concentrated ammonia water is 25%, the molar ratio of electrolytic copper plate and concentrated ammonia water is 1:2.5, the reaction temperature is 25°C, the reaction time is 2h, and the The air flow rate is 300mL / min;

[0041] Step 2, feed CO into the mixed solution obtained after step 1 2 , forming a solid precipitate;

[0042] CO 2 The flow rate is 200mL / min, with CO 2 The purity is greater than or equal to 99.95%, and the passage time is 1.5h;

[0043] In step 3, the solid precipitate in step 2 is suction filtered...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of micro-nano CuO powder, which specifically comprises the following steps: firstly, putting an electrolytic copper plate into concentrated ammonia water,carrying out dissolution reaction, and introducing air into the concentrated ammonia water to obtain a mixed solution, then introducing CO2 into the mixed solution to form a solid precipitate, carrying out suction filtration, drying, grinding and sieving to obtain powder, and finally putting the powder into a resistance furnace to be calcined to obtain the micro-nano CuO powder. Compared with a traditional acidic dissolution electrolytic copper plate, the alkaline dissolution electrolytic copper plate is more environmentally friendly, and no harmful gas is generated in the operation process. According to the method, the requirement for hardware equipment is lowered, meanwhile, the wastewater treatment stage caused by acid corrosion is avoided, operation is easy and convenient, and the costis greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of micro-nano powder preparation, and in particular relates to a preparation method of micro-nano CuO powder. Background technique [0002] When CuO powder reaches the micro-nano level, its special properties play an important role in many fields. For example: CuO powder at the micro-nano level is used as a colorant in the glass, enamel and ceramic industries, as an anti-zooming agent in coatings, and as a polishing agent in optical glass. In addition, CuO powder can be used as organic catalyst carrier and copper compound. It is also used in the rayon manufacturing industry and as a desulfurizer for grease. The preparation methods of micro-nano CuO powder are usually copper powder direct oxidation method and leaching method. These two methods have high requirements on raw materials, complex process flow, small production scale, high labor intensity, high production cost and serious environmental pollution....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C01G3/02B82Y30/00
CPCC01G3/02B82Y30/00
Inventor 刘毅吉辰卢琳琳苏晓磊徐洁
Owner XI'AN POLYTECHNIC UNIVERSITY