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

Alkaline etching solution regeneration and copper extraction system

An etching solution and alkaline technology, which is applied in the field of alkaline etching solution regeneration copper extraction system, can solve the problems of reducing the etching line speed and quality, and achieve the effects of reducing labor, high recovery efficiency and simple equipment

Inactive Publication Date: 2016-04-20
江苏净拓环保科技有限公司
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology will seriously reduce the speed and quality of the etching line, which is difficult for most manufacturers to accept

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Alkaline etching solution regeneration and copper extraction system
  • Alkaline etching solution regeneration and copper extraction system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] like figure 1 As shown, a copper extraction system for regeneration of alkaline etching solution is disclosed in this embodiment, comprising a first extractor 3, a second extractor 12, an electrolysis device 7, a filtrate storage 14, a filtrate recovery pool 13, a first extraction The upper liquid outlet of the device 3 is connected to the filtrate storage 14, the lower liquid outlet of the first extractor 3 is connected to the liquid inlet of the second extractor 12, and the upper liquid outlet of the second extractor 12 is connected to the liquid inlet of the filtrate recovery tank 13 Connected, the liquid outlet of the second extractor 12 is connected with the liquid inlet of the electrolysis device 7 .

[0030] The waste etching solution flowing out of the production line flows into the first extractor 3 through the pipeline. The pipeline is provided with a first throttle valve 1 and a metering pump 2 that can be used to adjust the flow rate. The first extractor is ...

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 an alkaline etching solution regeneration and copper extraction system which comprises a first extractor, a second extractor, an electrolysis unit, a filtrate storage device and a filtrate recycle pool, wherein a liquid outlet above the first extractor is connected with the filtrate storage device; a liquid outlet below the first extractor is connected with a liquid inlet of the second extractor; a liquid outlet above the second extractor is connected with the liquid inlet of the filtrate recycle pool; and a liquid outlet below the second extractor is connected with the liquid inlet of the electrolysis unit. According to the system disclosed by the invention, copper-containing liquid is purified by combining extraction and reverse extraction and enters an electrolysis system to recover copper, the equipment is simple, the recovery efficiency is high, and the purity of the extracted elementary copper is high.

Description

technical field [0001] The invention relates to the field of PCB etching waste liquid treatment, in particular to an alkaline etching liquid regeneration copper extraction system, which belongs to the field of chemical waste liquid treatment. Background technique [0002] Alkaline etching is an important step in the production of printed circuit boards. As the etching progresses, the concentration of copper ions in the etching solution becomes higher and higher, and the etching speed becomes slower and slower. If it is not replaced, the etching progress and quality will be seriously affected. Alkaline etching waste liquid not only contains a large amount of copper ions, but also contains other valuable chemical substances. Therefore, manufacturers will basically dispose of it by themselves or entrust qualified merchants to recycle it, so as to achieve the recycling of etching solution. At present, there are many ways to recover copper in the etching waste solution, and rep...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/46C25C1/12C22B7/00
CPCC22B7/006C23F1/46C25C1/12Y02P10/20
Inventor 龙正欧阳锋花慧洋
Owner 江苏净拓环保科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com