Electroplating in presence of co2

A CO2, CH2 technology, applied in the field of environmental response, can solve the problem that there is no information related to the surfactant and the coating operation of the coating
CN1918326AInactive Publication Date: 2007-02-21DAIKIN IND LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
DAIKIN IND LTD
Publication Date
2007-02-21
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A method for performing electroplating in the co-presence of CO2 and an aqueous solution containing a metal salt is characterized in that CO2 is in a liquid, subcritical or supercritical state and a nonionic compound having a CO2 affinity portion is further added into the system where the aqueous solution and CO2 are co-present. By this method, the electrochemical reaction proceeds more efficiently and there can be formed a very good metal coating.
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Description

technical field

[0001] The present invention relates to CO 2 An environmental response technology that replaces solvents. More specifically, it involves CO 2 Efficiency technology for electrochemical reaction of solvent and electroplating technology using this technology. Background technique

[0002] Due to the conspicuousness of environmental problems, the use of CO 2 Attention has been paid to technologies that can replace highly toxic organic solvents as solvents. And, if it is possible to 2 If the intermediate treatment compound is used, the cost of wastewater treatment may be greatly reduced, and the application in industrial fields with high wastewater treatment costs such as dyeing and plating has attracted special attention. In such a technical background, it is disclosed that an aqueous metal salt solution and CO 2 A technique of electroplating by suspension (Patent Document 1, Non-Patent Documents 1 and 2).

[0003] According to the information disclosed in...

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
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