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Method for preparing copper powder through environment-friendly surface active agent

A surfactant and green technology, applied in the field of copper powder preparation, can solve the problems of non-degradable chemical surfactants, environmental and ecological system hazards, etc., and achieve the effects of good self-desorption performance, easy biodegradation, and uniform particle size distribution.

Active Publication Date: 2018-08-31
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing chemical surfactants are not degradable, and in the process of production and use, they have also caused serious harm to the human body and the environmental ecosystem.

Method used

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  • Method for preparing copper powder through environment-friendly surface active agent
  • Method for preparing copper powder through environment-friendly surface active agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of method that adopts green surfactant to prepare copper powder in the present embodiment comprises the following steps:

[0032] (1) Preparation of electrolyte: Weigh the following raw materials according to the proportion of each liter of electrolyte: 3.6g of green surfactant (sodium sulfate of fatty alcohol polyoxyethylene ether), 6.0g of additive (ethylene glycol), CuSO 4 ·5H 2 O 30.0g; The green surfactant (sodium fatty alcohol polyoxyethylene ether sulfate) and the auxiliary agent (ethylene glycol) are added to the water of 200ml, and mechanically stirred for 10min to obtain the green surfactant solution; CuSO 4 ·5H 2 O was dissolved in 200ml of water to obtain a copper sulfate solution; the green surfactant solution was added to the copper sulfate solution, and water was added to prepare a 1L aqueous solution; ultrasonic dispersion was used for 30 minutes to prepare an electrolyte;

[0033] (2) Electrodeposition electrolyte: heat the electrolyte prepare...

Embodiment 2

[0038] A kind of method that adopts green surfactant to prepare copper powder in the present embodiment comprises the following steps:

[0039] (1) Preparation of electrolyte: Weigh the following raw materials according to the ratio per liter of electrolyte: 5.0g of green surfactant (1g of lauryl glucoside, 2g of sucrose fatty acid polyester, 2g of sodium carboxymethylcellulose), additives (ethanol and methanol each 5g) 10.0g, CuSO 4 ·5H 20.50.0g; the green surfactant (lauryl glucoside, sucrose fatty acid polyester, sodium carboxymethylcellulose) and the auxiliary agent (ethanol and methyl alcohol) are added to the water of 200ml, and mechanically stirred for 30min to obtain Green surfactant solution; the CuSO 4 ·5H 2 O was dissolved in 200ml of water to obtain a copper sulfate solution; the green surfactant solution was added to the copper sulfate solution, and water was added to make a 1L aqueous solution; ultrasonic dispersion was used for 60 minutes to prepare an electr...

Embodiment 3

[0045] A kind of method that adopts green surfactant to prepare copper powder in the present embodiment comprises the following steps:

[0046] (1) Preparation of electrolyte: Weigh the following raw materials according to the ratio per liter of electrolyte: 0.3g of green surfactant (0.15g each of alkyl glycoside and alcohol ether carboxylate), 3.0g of additive (n-butanol), CuSO 4 ·5H 2 0.36g; The green surfactant (alkyl glucoside and alcohol ether carboxylate) and the auxiliary agent (n-butanol) are added to the water of 200ml, and mechanically stirred for 20min to obtain the green surfactant solution; CuSO 4 ·5H 2 O was dissolved in 200ml of water to obtain a copper sulfate solution; the green surfactant solution was added to the copper sulfate solution, and water was added to prepare a 1L aqueous solution; ultrasonic dispersion was used for 45 minutes to prepare an electrolyte;

[0047] (2) Electrodeposition electrolyte: heat the electrolyte prepared in step (1), control...

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Abstract

A method for preparing copper powder through an environment-friendly surface active agent comprises the following steps that firstly, the environment-friendly surface active agent, addition agents, CuSO4.5H2O and water are selected according to a certain proportion to be prepared into an electrolyte; secondly, electrolytic deposition is carried out on the electrolyte, and copper powder mixed liquid is obtained; thirdly, copper powder is extracted, filtration or centrifugal treatment is carried out on the copper powder mixed liquid, and after suction filtration and drying, copper powder is obtained; and fourthly, the copper powder is put into a packaging bag, and after inert gases are fed into the packaging bag, sealing storage is carried out. According to the copper powder prepared throughthe method, the particle size range is 30-100 nm or 200-800 nm, the purity is 99% or above, the particle size distribution is uniform, and feature consistency is good; in the preparation process, thecopper powder cannot adhere to a negative plate, the self-desorption performance is good, the negative plate is easy to wash, and automatic and continuous production can be achieved; the corrosion amount to an anode plate is small, environment friendliness is achieved, no pollution is caused, and the energy consumption is low; and the prepared copper powder is good in dispersibility and easy to collect.

Description

technical field [0001] The invention relates to a method for preparing copper powder, in particular to a method for preparing copper powder by using a green surfactant. Background technique [0002] Copper powder is one of the basic raw materials of the powder metallurgy industry, and it is also a non-ferrous metal powder that is mass-produced and consumed in my country. It plays an irreplaceable role in modern industrial production. As one of the main raw materials in industry, copper powder and copper-containing alloy powder are widely used in the fields of machinery, metallurgy, chemical industry, and aerospace materials. The total annual consumption in the world has exceeded 1 million tons, and the powder metallurgy parts produced are nearly 900,000 tons. , with sales exceeding $7.5 billion. Copper-based powder is the basic raw material of powder metallurgy industry, and its output and quality determine the development of powder metallurgy industry. [0003] In recent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C5/02
CPCC25C5/02
Inventor 苏玉长罗中保岳士翔张晶热比古丽图尔荪喻秋山
Owner CENT SOUTH UNIV
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