Electrolyte for the galvanic deposition of aluminium from aprotic solvents in a plating barrel

An electrolyte and aprotic technology, which is applied in the fields of compounds containing group 3/13 elements of the periodic table, chemical instruments and methods, organic chemistry, etc., can solve problems such as deficiencies, and achieve high plating ability and uniform corrosion resistance.

Inactive Publication Date: 2009-11-04
ALUMINAL OBERFLACHENTECHN
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This conductivity is insufficie

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
  • Electrolyte for the galvanic deposition of aluminium from aprotic solvents in a plating barrel
  • Electrolyte for the galvanic deposition of aluminium from aprotic solvents in a plating barrel

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Example

[0054] 1. Preparation of electrolyte

[0055] Tetraethylammonium chloride, which can be purchased as a monohydrate, is dried under vacuum. One mole of dried tetraethylammonium chloride was mixed with toluene to obtain a suspension. During cooling, 2 moles (used as pure substance or as a toluene solution) of triethylaluminum are added dropwise to the suspension. The reaction mixture was stirred. Get N(C 2 H 5 ) 4 Cl·2Al(C 2 H 5 ) 3 ·2 A clear solution of toluene. With respect to the usage amount of tetraethylammonium chloride, 2 moles of toluene was used as a solvent. The resulting product is used as an electrolyte.

[0056] 2. The conductivity of the electrolyte of the present invention is compared to the conductivity of the electrolyte of the prior art

[0057] Adequate conductivity of the electrolyte is a basic requirement for adequate coating, especially for small parts in the coating drum. The conductivity of the electrolyte of the present invention is signifi...

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 relates to an electrolyte for the galvanic deposition of al uminium from aprotic solvents, said electrolyte containing a compound of for mula N(R1)4X.(m-n-o)AI (C2H5)3-n AIR2 3-o AIR3 3 (I), wherein R1 is a C1 to C4 alkyl group, X is equal to F, Cl or Br, m is equal to between 1 and 3, pr eferably between 1.7 and 2.3, n is equal to between 0.0 and 1.5, preferably 0.0 and 0.6, o is equal to between 0.0 and 1.5, preferably between 0.0 and 0 .6, and R2 and R3 are a C1 or C3 to C6 alkyl group, R2 differing from R3in a n organic solvent. The invention also relates to a method for producing the electrolyte, a coating method and the coated material parts.

Description

technical field [0001] The subject of the present invention is an electrolyte for the electrodeposition of aluminum from aprotic solvents, preferably for roller coating of the material. Further subjects of the invention are the method for producing the electrolyte, the use of the electrolyte, the coating method and the components coated with the method. Background technique [0002] It is known that the electrodeposition of aluminum is only possible from non-aqueous electrolytes, since this metal has a very low electrode potential. [0003] In principle, electrodeposition of aluminum is carried out in non-aqueous systems by using electrolytes containing organoalkylaluminum complexes dissolved in organic aprotic solvents. Coating is carried out in such a way that the material to be coated operates as a cathode in the electrolyte solution. In addition, the electrolyte solution contains an aluminum anode to provide the aluminum necessary for coating. When an electric current...

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): C25D3/44C07F5/06
CPCC07F5/062C25D3/44
Inventor H·德弗里斯M·黑特尔
Owner ALUMINAL OBERFLACHENTECHN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap