CN106319597A - Formed foil preparing method - Google Patents
Formed foil preparing method Download PDFInfo
- Publication number
- CN106319597A CN106319597A CN201610725181.3A CN201610725181A CN106319597A CN 106319597 A CN106319597 A CN 106319597A CN 201610725181 A CN201610725181 A CN 201610725181A CN 106319597 A CN106319597 A CN 106319597A
- Authority
- CN
- China
- Prior art keywords
- washing
- conducted
- acid
- direct current
- temperature ranging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000011888 foil Substances 0.000 title abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 20
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims abstract description 8
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000019253 formic acid Nutrition 0.000 claims abstract description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 4
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 4
- 238000000137 annealing Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 3
- 239000005030 aluminium foil Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- -1 aluminum ions Chemical class 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 101100065878 Caenorhabditis elegans sec-10 gene Proteins 0.000 abstract 1
- 239000000908 ammonium hydroxide Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/12—Anodising more than once, e.g. in different baths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
- H01G9/055—Etched foil electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to a formed foil preparing method. After an aluminum foil raw material is subjected to vacuum high-temperature annealing pretreatment, 11 Wt%-12 Wt% of phosphoric acid is adopted for conducting treatment for 10 Sec-30 Sec at the temperature ranging from 70 DEG C to 90 DEG C; washing is conducted, direct current treatment is conducted for 1min-2 min at the temperature ranging from 50 DEG C to 60 DEG C in a mixed electrolyte containing 11 Wt%-12 Wt% of formic acid, 11 Wt%-12 Wt% of hydrochloric acid and 11 Wt%-12 Wt% of aluminum ions; then, the aluminum foil raw material is moved into 6 Wt%-9 Wt% of ammonium hydroxide treating fluid to be treated for 5 Sec-10 Sec at the temperature ranging from 30 DEG C to 40 DEG C; washing is conducted, the direct current power-up reaction is conducted for 3 min-4 min at the temperature ranging from 20 DEG C to 25 DEG C in 3 Wt%-5 Wt% of an ammonium chloride electrolyte; then, the aluminum foil raw material is moved into 3 Wt%-4 Wt% of formic acid liquid to be treated for 25 Sec-30 Sec at the temperature ranging from 30 DEG C to 40 DEG C; washing is conducted, 1 Wt% of nitric acid and 0.2 Wt% of aluminum ions are adopted for conducting the direct current power-up reaction for 8 min-9 min at the temperature ranging from 90 DEG C to 92 DEG C; washing is conducted, and treatment is conducted for 3 min at the temperature ranging from 50 DEG C to 70 DEG C in 0.2 Wt% of nitric acid liquid; and a formed foil product is obtained through washing and drying. The formed foil preparing method has the beneficial effects that the reaction temperature is low, and the product quality is good.
Description
Technical field
The invention belongs to a kind of electrode foil preparation method.
Background technology
Electrode foil is the key raw material that aluminium electrolutic capacitor manufactures.Due to developing rapidly of electronic industry, the most logical
The drastically expansion in machine product markets such as letter product, computer, household electrical appliances etc., has risen the development of aluminum electric pole foil industry and to have added fuel to the flames
Effect.Simultaneously because the requirement of the miniaturization of aluminium electrolutic capacitor, high performance, chip type is more and more urgent, to electrode foil
Manufacturing industry it is also proposed higher technology and prescription.Waste Acid From Hua Cheng Foil, etched foil, i.e. electrode foil, inherently rafifinal is (pure
Degree up to more than 99.9%).Electrode foil quality it is critical only that preparation method chemical synthesis technology condition.
Summary of the invention
It is an object of the invention to, propose a kind of Waste Acid From Hua Cheng Foil preparation method.
The Waste Acid From Hua Cheng Foil preparation method of the present invention, processes including the annealing pretreatment of aluminium foil raw material vacuum high-temperature, electrolysis hair engaging aperture；
It is characterized in that: it is as follows that its electrolysis hair engaging aperture processes technical process:
1) use 11-12Wt% phosphoric acid, at 70-90 DEG C, process 10-30Sec；Washing；
2) the formic acid of 11-12Wt%, the hydrochloric acid of 11-12Wt%, 11-12Wt% aluminium ion mixed electrolytic solution in,
At 50-60 DEG C, Direct current treatment 1-2min；Then, move on in 6-9Wt% ammonia treatment liquid, at 30-40 DEG C, process 5-10Sec；
Washing；
3), in the ammonium chloride electrolyte of 3-5Wt%, at 20-25 DEG C, direct current powers up reaction 3-4min；Then, 3-is moved on to
In the formic acid liquid of 4Wt%, at 3040 DEG C, process 25-30Sec；Washing；
4) using the aluminium ion of 1Wt% nitric acid+0.2Wt%, at 90-92 DEG C, direct current powers up reaction 8-9min；Washing；
5) in 0.2Wt% nitric acid liquid, at 50-70 DEG C, 3min is processed；Washing, drying Waste Acid From Hua Cheng Foil product.This
Bright compared with prior art it provides the benefit that: reaction temperature is low, good product quality.
Detailed description of the invention
Below in conjunction with embodiment, technical scheme is described in further detail, but embodiments of the present invention do not limit
In this.
Embodiment
The Waste Acid From Hua Cheng Foil preparation method of the present invention, employing pure aluminum foil raw material: Al purity >=99.99%, take vacuum high-temperature
After annealing pretreatment；Carrying out being electrolysed hair engaging aperture to process, its step is as follows:
1) use 11-12Wt% phosphoric acid, at 70-90 DEG C, process 10-30Sec；Washing；
2) the formic acid of 11-12Wt%, the hydrochloric acid of 11-12Wt%, 11-12Wt% aluminium ion mixed electrolytic solution in,
At 50-60 DEG C, Direct current treatment 1-2min；Then, move on in 6-9Wt% ammonia treatment liquid, at 30-40 DEG C, process 5-10Sec；
Washing；
6), in the ammonium chloride electrolyte of 3-5Wt%, at 20-25 DEG C, direct current powers up reaction 3-4min；Then, 3-is moved on to
In the formic acid liquid of 4Wt%, at 30-40 DEG C, process 25-30Sec；Washing；
7) using the aluminium ion of 1Wt% nitric acid+0.2Wt%, at 90-92 DEG C, direct current powers up reaction 8-9min；Washing；
8) in 0.2Wt% nitric acid liquid, at 50-70 DEG C, 3min is processed；Washing, drying Waste Acid From Hua Cheng Foil product.
Products obtained therefrom, uses the detection method of prior art to detect, and relevant quality index reaches aluminium electrolutic capacitor
By Waste Acid From Hua Cheng Foil SJ/T 11140-2012 standard.
Claims (1)
1. a Waste Acid From Hua Cheng Foil preparation method, processes including the annealing pretreatment of aluminium foil raw material vacuum high-temperature, electrolysis hair engaging aperture；Its feature
It is: it is as follows that its electrolysis hair engaging aperture processes technical process:
1) use 11-12Wt% phosphoric acid, at 70-90 DEG C, process 10-30Sec；Washing；
2) the formic acid of 11-12Wt%, the hydrochloric acid of 11-12Wt%, 11-12Wt% aluminium ion mixed electrolytic solution in, at 50-60
At DEG C, Direct current treatment 1-2min；Then, move on in 6-9Wt% ammonia treatment liquid, at 30-40 DEG C, process 5-10Sec；Washing；
3), in the ammonium chloride electrolyte of 3-5Wt%, at 20-25 DEG C, direct current powers up reaction 3-4min；Then, 3-4Wt% is moved on to
Formic acid liquid in, at 30-40 DEG C process 25-30Sec；Washing；
4) using the aluminium ion of 1Wt% nitric acid+0.2Wt%, at 90-92 DEG C, direct current powers up reaction 8-9min；Washing；
5) in 0.2Wt% nitric acid liquid, at 50-70 DEG C, 3min is processed；Washing, drying Waste Acid From Hua Cheng Foil product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725181.3A CN106319597A (en) | 2016-08-19 | 2016-08-19 | Formed foil preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610725181.3A CN106319597A (en) | 2016-08-19 | 2016-08-19 | Formed foil preparing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106319597A true CN106319597A (en) | 2017-01-11 |
Family
ID=57790809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610725181.3A Pending CN106319597A (en) | 2016-08-19 | 2016-08-19 | Formed foil preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106319597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505095A (en) * | 2018-04-04 | 2018-09-07 | 南通海星电子股份有限公司 | A kind of formation processing method of high intensity medium-high pressure chemical foil |
-
2016
- 2016-08-19 CN CN201610725181.3A patent/CN106319597A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505095A (en) * | 2018-04-04 | 2018-09-07 | 南通海星电子股份有限公司 | A kind of formation processing method of high intensity medium-high pressure chemical foil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |