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

A method for producing Fred's salt by using aluminum-containing waste hydrochloric acid and aluminum-containing sludge in the electrode foil industry

A technology of aluminum sludge and electrode foil, applied in chemical instruments and methods, aluminum compounds, other chemical processes, etc., can solve the problems of complex process and high cost, and achieve the effect of extensive economic value

Active Publication Date: 2021-06-25
NANTONG HAIXING ELECTRONICS +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, Fred's salt is mainly produced through hydration, but the process is complicated and the cost is high

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

Embodiment 1

[0014] A method for producing Fred's salt by using aluminum-containing waste hydrochloric acid and aluminum-containing sludge in the electrode foil industry, comprising the following steps: mixing the electrode foil aluminum-containing waste hydrochloric acid and aluminum-containing sludge, and synchronously adding an alkalizing agent and a regulator solution, adjust the pH and calcium-aluminum content ratio, and stir at a high speed to form a reaction system, which will generate a milky white slurry within a certain reaction time, which is Fred's salt; the mass concentration of aluminum-containing waste hydrochloric acid in the electrode foil The mass concentration of aluminum-containing sludge is about 1%; the aluminum-containing sludge is the aluminum-containing sludge produced by the neutralization of waste acid or waste water in electrode foil enterprises, and the solid components are aluminum hydroxide and calcium chloride As the main component, the water content is 45%; ...

Embodiment 2

[0016] A method for producing Fred's salt by using aluminum-containing waste hydrochloric acid and aluminum-containing sludge in the electrode foil industry, comprising the following steps: mixing the electrode foil aluminum-containing waste hydrochloric acid and aluminum-containing sludge, and synchronously adding an alkalizing agent and a regulator solution, adjust the pH and calcium-aluminum content ratio, and stir at a high speed to form a reaction system, which will generate a milky white slurry within a certain reaction time, which is Fred's salt; the mass concentration of aluminum-containing waste hydrochloric acid in the electrode foil The mass concentration of aluminum-containing sludge is about 5%; the aluminum-containing sludge is the aluminum-containing sludge produced by the neutralization of waste acid or waste water in electrode foil enterprises, and the solid components are aluminum hydroxide and calcium chloride As the main component, the water content is 85%; ...

Embodiment 3

[0018] A method for producing Fred's salt by using aluminum-containing waste hydrochloric acid and aluminum-containing sludge in the electrode foil industry, comprising the following steps: mixing the electrode foil aluminum-containing waste hydrochloric acid and aluminum-containing sludge, and synchronously adding an alkalizing agent and a regulator solution, adjust the pH and calcium-aluminum content ratio, and stir at a high speed to form a reaction system, which will generate a milky white slurry within a certain reaction time, which is Fred's salt; the mass concentration of aluminum-containing waste hydrochloric acid in the electrode foil 8%, and the mass concentration of aluminum-containing sludge is about 3%; the aluminum-containing sludge is the aluminum-containing sludge produced by the neutralization of waste acid or waste water in electrode foil enterprises, and the solid components are aluminum hydroxide and calcium chloride As the main component, the water content ...

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 method for producing Fred's salt by using aluminum-containing waste hydrochloric acid and aluminum-containing sludge in the electrode foil industry. Agent and regulator solution, adjust the pH and calcium-aluminum content ratio, and stir at a high speed to form a reaction system, within a certain reaction time, a milky white slurry is formed, which is Fred's salt. The raw materials of the overall production process of the present invention come from the waste in the production process, and the aluminum ions in the waste acid and the calcium ions in the sludge are recycled as resources, and the overall process meets the requirements of clean production; the operating conditions are normal temperature and pressure, simple and operable , has a wide range of economic value.

Description

technical field [0001] The invention belongs to the field of resource utilization in the electrode foil industry, and relates to a method for producing Fred's salt by using aluminum-containing waste hydrochloric acid and aluminum-containing sludge in the electrode foil industry. Background technique [0002] In the corrosion stage of the electrode foil industry, electronic light foil is used as raw material, and chemical corrosion is carried out through electrochemical corrosion and hydrochloric acid solution, and a large amount of aluminum-containing waste hydrochloric acid will be produced in the corrosion section. At present, in the industry, the pH is neutralized by alkaline substances (lime milk solution), and then the sedimentation treatment is carried out with coagulants and flocculants to simultaneously produce press-filtered aluminum-containing sludge. This treatment process has two major drawbacks. The first is that a large amount of alkaline substances and floccul...

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 Patents(China)
IPC IPC(8): B01J20/08C01F7/00B01J20/28B01J20/30
CPCB01J20/08B01J20/2804C01P2002/22C01F7/78
Inventor 严季新陈小锋金焕冬施赛健施亚星
Owner NANTONG HAIXING ELECTRONICS
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