CN101746833A - Preparation method of ferrite magnetic materials - Google Patents
Preparation method of ferrite magnetic materials Download PDFInfo
- Publication number
- CN101746833A CN101746833A CN200810184898A CN200810184898A CN101746833A CN 101746833 A CN101746833 A CN 101746833A CN 200810184898 A CN200810184898 A CN 200810184898A CN 200810184898 A CN200810184898 A CN 200810184898A CN 101746833 A CN101746833 A CN 101746833A
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- Prior art keywords
- stainless steel
- ferrite magnetic
- acid cleaning
- hour
- waste slag
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- Processing Of Solid Wastes (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention discloses a method for preparing ferrite magnetic materials by utilizing stainless steel oxide skin acid cleaning waste slag. The invention has the concrete technical scheme that the method comprises the following steps: using the stainless steel oxide skin acid cleaning waste slag as raw materials; adding the raw materials into a NaOH solution with the concentration of 1100 g/L; raising the temperature to 160 DEG C; dripping a certain amount of H2O2 at a certain speed; maintaining the constant temperature for half an hour after the dripping completion of H2O2; carrying out suction filtration and washing; and baking for an hour at 100 DEG C. The invention has the advantages that Cr<3+> in spinelle ferrite is gradually dissolved out and is separated out as precipitates in a form of Cr2O3, so the ferrite magnetic performance is improved. The final magnetization intensity Ms can reach 12.07 emu/g, the magnetic remanence Mr is 2.37 emu/g, and the coercive force Hc is 199.99 Oe.
Description
Technical field
The present invention relates to a kind of ferrite magnetic material preparation method, relate in particular to a kind of method of utilizing stainless steel oxidation skin acid cleaning waste slag to prepare ferrite magnetic material.
Background technology
Stainless steel is in the thermoforming process, because high-temperature oxydation, its surface easily produces the oxide skin of one deck grey black, before the stainless steel deep processing, it must be removed.At present, generally adopt the acid cleaning process scale removal.Because chromium is the indispensable element in the stainless steel, therefore, must contain a large amount of chromium in pickle liquor and acid cleaning waste slag.Therefore and chromium has bigger harm to natural environment and health, must process pickle liquor and waste residue, makes chromium separate from discarded object or be fixed up with certain stable state, thus the purpose of meet the requirement of environmental protection and twice laid.Ferrite magnetic material is because the characteristic of itself has extensive use at electroacoustic, telecommunications, ammeter, motor memory cell, microwave component, tape, storage facilities etc.Therefore, utilize ferrite process to stablize chromium ion fixing and form ferrite magnetic material and become the focus of studying in the industry at present.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and handle stainless steel oxidation skin acid cleaning waste slag and prepare the method for ferrite magnetic material by ferrite process.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: adopting stainless steel oxidation skin acid cleaning waste slag is raw material, and it is joined in the NaOH solution that concentration is 1100g/L, be warming up to 160 ℃ after, drip H with certain speed
2O
2Some, treat H
2O
2After dropwising, constant temperature half an hour, suction filtration, washing were 100 ℃ of lower bakings 1 hour.
Advantage of the present invention is: through NaOH and H
2O
2After the processing, the Cr in the ferrospinel
3+Gradually stripping, and with Cr
2O
3The form Precipitation, the ferrite magnetic performance is improved.It is that 2.37emu/g, coercivity H are 199.99Oe that its final specific magnetising moment Ms can reach 12.07emu/g, remanent magnetism Mr.
Embodiment
Below in conjunction with specific embodiment the present invention is once described.
Embodiment 1:
Process stainless steel oxidation skin acid cleaning waste slag and prepare ferrite magnetic material by ferrite process, concrete scheme is: adopting stainless steel oxidation skin acid cleaning waste slag is raw material, it is joined in the NaOH solution that concentration is 1100g/L, be warming up to 160 ℃ after, drip H with certain speed
2O
2Some, treat H
2O
2After dropwising, constant temperature half an hour, suction filtration, washing were 100 ℃ of lower bakings 1 hour.
Claims (1)
1. method of processing stainless steel oxidation skin acid cleaning waste slag by ferrite process and preparing ferrite magnetic material.It is characterized in that: adopting stainless steel oxidation skin acid cleaning waste slag is raw material, and it is joined in the NaOH solution that concentration is 1100g/L, be warming up to 160 ℃ after, drip H with certain speed
2O
2Some, treat H
2O
2After dropwising, constant temperature half an hour, suction filtration, washing were 100 ℃ of lower bakings 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810184898A CN101746833A (en) | 2008-12-09 | 2008-12-09 | Preparation method of ferrite magnetic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810184898A CN101746833A (en) | 2008-12-09 | 2008-12-09 | Preparation method of ferrite magnetic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101746833A true CN101746833A (en) | 2010-06-23 |
Family
ID=42474541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810184898A Pending CN101746833A (en) | 2008-12-09 | 2008-12-09 | Preparation method of ferrite magnetic materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101746833A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219493A (en) * | 2011-04-29 | 2011-10-19 | 河北钢铁股份有限公司邯郸分公司 | Method for preparing MnZn ferrite material powder from acid washing waste liquid and galvanized zinc slag |
| CN102260070A (en) * | 2011-04-29 | 2011-11-30 | 河北钢铁股份有限公司邯郸分公司 | Preparation method of MnZn ferrite powder with galvanizing zinc slag and pickling waste liquid as raw materials |
| CN111662571A (en) * | 2017-12-12 | 2020-09-15 | 佛山市大千色釉料有限公司 | Preparation method of ceramic pigment |
-
2008
- 2008-12-09 CN CN200810184898A patent/CN101746833A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219493A (en) * | 2011-04-29 | 2011-10-19 | 河北钢铁股份有限公司邯郸分公司 | Method for preparing MnZn ferrite material powder from acid washing waste liquid and galvanized zinc slag |
| CN102260070A (en) * | 2011-04-29 | 2011-11-30 | 河北钢铁股份有限公司邯郸分公司 | Preparation method of MnZn ferrite powder with galvanizing zinc slag and pickling waste liquid as raw materials |
| CN111662571A (en) * | 2017-12-12 | 2020-09-15 | 佛山市大千色釉料有限公司 | Preparation method of ceramic pigment |
| CN111662571B (en) * | 2017-12-12 | 2021-09-03 | 佛山市大千色釉料有限公司 | Preparation method of ceramic pigment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |