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

Device for preparing stannous sulfate by electrolysis in mobile cathode chamber

A technology of stannous sulfate and cathode chamber, which is applied in electrolysis process, electrolysis components, cells, etc., can solve the problems of high voltage of stannous sulfate tank, difficult maintenance of diaphragm tank, high processing cost, etc., so as to reduce the low voltage of the tank and avoid sealing The effect of difficulty and low processing cost

Inactive Publication Date: 2011-04-20
ZHEJIANG UNIV OF TECH
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of high tank voltage, difficult maintenance of the diaphragm tank, and high processing cost of the existing device for preparing stannous sulfate by diaphragm electrolysis, the invention provides an activity of reducing the tank voltage, facilitating maintenance of the diaphragm maintenance tank, and reducing processing costs Device for preparing stannous sulfate by electrolysis in cathode chamber

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
  • Device for preparing stannous sulfate by electrolysis in mobile cathode chamber
  • Device for preparing stannous sulfate by electrolysis in mobile cathode chamber
  • Device for preparing stannous sulfate by electrolysis in mobile cathode chamber

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0030] Example 1: A kind of electrolytic device of electrolytic synthesis of stannous sulfate in mobile cathode chamber, in the attached figure 1 and figure 2In the mobile cathode chamber electrolysis device, the electrolytic cell 1 is a rectangular tank of polypropylene material, and the movable cathode chamber 2 is composed of a cathode chamber 7, a sealing gasket 8, a diaphragm 9 and a diaphragm frame 10, and is fastened by an anti-corrosion nut. The cathode cavity 7 and the diaphragm frame 10 are made of polypropylene material, and the side plates of the cathode cavity 7 and the middle window of the diaphragm frame 10 are opened into a cross frame structure, which is convenient for fixing the diaphragm. Place the three cathode chambers 2 in the rectangular frame of the anode chamber 1, hang three tin plates in the three cathode chambers as cathodes 4; hang tin plates on both sides of the movable cathode chamber 2 as anodes 3, 4 pieces in total. Three cathodes are hung on...

example 2

[0031] Example 2: In the electrolyzer of Example 1, the effective area of ​​the diaphragm window is 0.5m 2 , the thickness of the anode 3 is 2cm and the area is 0.6m 2 , the thickness of the anode 4 is 2cm and the area is 0.6m 2 . Add 10% H in electrolyzer 1 2 SO 4 Solution, add 10% H in 1 active cathode chamber 3 2 SO 4 The solution constitutes two unit electrolyzers, and the unit electrolyzers are connected in parallel. Constant current electrolysis with a current of 300A (each cell current 150A, current density 250A / m 2 ), the electrolyte temperature is controlled at 30-40°C. Electrolysis to SnSO 4 End electrolysis when the content is 180-200g / L, and the cell voltage is 1.5-2.5V. Pump out the anolyte, filter to remove a small amount of precipitate, concentrate in vacuo, and crystallize to obtain SnSO 4 The product has a purity of 99.4%. The current efficiency is 93.1%.

example 3

[0032] Example 3: According to the method of example 2, 10 movable cathode chambers 3 are placed in the electrolyzer 1, and there are 20 unit electrolyzers in total, and each unit electrolyzer is connected in parallel. The anolyte and tank make up the loop, and the catholyte and pump make up the loop. Add 10% H to the anode and catholyte storage tanks 2 SO 4 Solution (anolyte containing crystallization mother liquor), electrolyzed with a constant current of 3000A (single cell current 150A, current density 250A / m 2 ), electrolyte temperature control 30-40 ℃. Electrolysis to SnSO 4 End electrolysis when the content is 180-200g / L, and the cell voltage is 1.5-2.5V. Pump out the anolyte, filter to remove a small amount of precipitate, concentrate in vacuo, and crystallize to obtain SnSO 4 Product, output 1360kg / day, purity 99.4%. The current efficiency is 92.1%.

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 device for preparing stannous sulfate by electrolysis in a mobile cathode chamber. The device comprises an electrolytic bath and anodes and a cathode arranged in the electrolytic bath, wherein the anodes are arranged on two sides of the cathode respectively; a diaphragm is arranged between the cathode and the anode; and the mobile cathode chamber is formed in the electrolytic unit bath, the mobile cathode chamber is positioned between two adjacent anodes, the mobile cathode chamber comprises a cathode cavity and diaphragm frames, the cathode is positioned in the cathode cavity, the diaphragm frames are arranged on two sides of the cathode cavity, the diaphragms are positioned in the diaphragm frames, and a sealing washer is arranged between the diaphragm frame and the cathode cavity. The invention provides the device for preparing the stannous sulfate by electrolysis in the mobile cathode chamber, which reduces the voltage of the bath, is convenient for diaphragm maintenance and bath maintenance and reduces the processing cost.

Description

technical field [0001] The invention relates to a device for preparing stannous sulfate by electrolysis. Background technique [0002] Stannous sulfate is a white powdery crystal, easily soluble in water at room temperature. As an important inorganic chemical raw material, stannous sulfate is widely used in acid plating of alloys, tinplate, cylinder pistons, steel wires, etc., as well as bright tin plating of electronic devices, decorative color plating of aluminum alloys, electroplating of electronic components, and aluminum alloy products. Oxidative coloring and mordant in printing and dyeing industry. In recent years, sulfuric acid has been used as an additive for cement calcination to prepare "green" environmentally friendly cement, which can inhibit the volatilization of heavy metal components in the cement production process, thereby reducing environmental pollution. [0003] The preparation method of stannous sulfate can be roughly divided into chemical method and e...

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
IPC IPC(8): C25B1/00C25B9/06C25B9/17
Inventor 甘永平张文魁黄辉陶新永
Owner ZHEJIANG UNIV OF TECH
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