Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cyclic regeneration device for alkaline etching solution

A technology for recycling and regenerating etching solution, which is applied in the field of recycling devices for alkaline etching solution for printed circuit boards. It can solve the problems of waste etching solution that trouble enterprises, meet the needs of etching production, reduce production and operation costs, and achieve stable performance. Effect

Inactive Publication Date: 2019-07-05
GUANGZHOU JICHI ENVIRONMENTAL TECH CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the treatment of waste etching solution has always been a problem that plagues enterprises.

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
  • Cyclic regeneration device for alkaline etching solution
  • Cyclic regeneration device for alkaline etching solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The recycling device for alkaline etching solution provided by the present invention will be described in detail below.

[0032] refer to figure 1 , a recycling device 10 for alkaline etching solution, including a connected circulating storage system and an extraction system, the circulating storage system includes an etching waste solution tank 110, a regeneration solution tank 111 and a regeneration solution preparation tank 112 for temporary storage and circulating alkaline etching waste liquid and alkaline etching regeneration liquid; the regeneration liquid tank 111 communicates with the alkaline etching line (SES line) 20, uses the regeneration liquid for the etching process, and connects the SES line 20 with the etching waste The liquid tank 110 is communicated, and the etching waste liquid that produces is collected in the etching waste liquid tank 110; The extraction system includes a connected copper extraction separator 121 and a stripping separator 122, and ...

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 cyclic regeneration device for an alkaline etching solution. The cyclic regeneration device for the alkaline etching solution includes a circulating storage system, an extraction system and an electrolytic cell, and the circulating storage system, the extraction system and the electrolytic cell are sequentially connected; the circulating storage system comprises an etching waste liquid tank, a regenerating liquid tank and a regenerating liquid blending tank; the extraction system comprises a copper extraction separator and a stripping separator, and the copper extraction separator communicates with the etching waste liquid tank; and the stripping separator uses sulphuric acid to strip copper ions from the copper extraction separator to an sulphuric acid solution,and the stripped solution is conveyed to the electrolytic cell as an electrolyte. The cyclic regeneration device and method for the alkaline etching solution is adopted, the recycling and reuse of theetching waste liquid can be realized, and the utilization rate can reach 98% or above, thus the discharge of pollution waste from PCB enterprises is greatly reduced.

Description

technical field [0001] The invention relates to the field of printed circuit board etching, in particular to a recycling device for alkaline etching solution of printed circuit boards. Background technique [0002] Printed circuit boards are the foundation of the electronic information industry, and advanced technology products are inseparable from printed circuit boards. Due to the large amount of etching waste liquid produced during the etching process of printed circuit boards, it contains a large amount of components harmful to the environment, such as copper ions and the like. Therefore, the treatment of waste etching solution has always been a problem that plagues enterprises. Contents of the invention [0003] The technical purpose of the present invention is to provide a recycling device and method for alkaline etching solution. [0004] Technical purpose of the present invention is achieved through the following technical solutions: [0005] A recycling device ...

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): C23F1/46
CPCC23F1/46
Inventor 罗宝奎陈永江
Owner GUANGZHOU JICHI ENVIRONMENTAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com