CN103508493A - Preparation method for iron oxide red - Google Patents
Preparation method for iron oxide red Download PDFInfo
- Publication number
- CN103508493A CN103508493A CN201210206814.1A CN201210206814A CN103508493A CN 103508493 A CN103508493 A CN 103508493A CN 201210206814 A CN201210206814 A CN 201210206814A CN 103508493 A CN103508493 A CN 103508493A
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- CN
- China
- Prior art keywords
- iron oxide
- preparation
- hydrochloric acid
- acid pickling
- oxide red
- 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.)
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- Compounds Of Iron (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a preparation method for iron oxide red. The preparation method comprises the following steps: extracting ferrous ions in waste hydrochloric acid pickling liquid to prepare ferrous sulfate; adding ammonia water into the ferrous sulfate for oxidation and neutralization reactions so as to obtain iron oxide red sediment; and carrying out separating and drying. The method has the following advantage: iron oxide red is prepared by using the waste hydrochloric acid pickling liquid, so the utilization rate of the waste hydrochloric acid pickling liquid is improved.
Description
Technical field
The present invention relates to a kind of preparation method of red iron oxide.
Background technology
The processing of hydrochloric acid pickling waste liquor, a lot of enterprises consider treatment cost of waste liquor and technical problem, therefore take direct discharge, and environment is caused to very large pollution.And in fact, the many compositions in hydrochloric acid pickling waste liquor can be reused.
Summary of the invention
Goal of the invention: for the problems referred to above, the object of this invention is to provide a kind of preparation method of red iron oxide, utilize hydrochloric acid pickling waste liquor for raw material, improve the utilization ratio of hydrochloric acid pickling waste liquor.
Technical scheme: a kind of preparation method of red iron oxide, the ferrous ion extracting in hydrochloric acid pickling waste liquor is prepared ferrous sulfate, then adds ammoniacal liquor to be oxidized and neutralization reaction in ferrous sulfate, obtains red iron oxide throw out, dry through separation.
The mol ratio that ferrous ion reacts with ammoniacal liquor is 1: 5.
Beneficial effect: compared with prior art, advantage of the present invention is to utilize hydrochloric acid pickling waste liquor, prepares red iron oxide, the utilization ratio of raising hydrochloric acid pickling waste liquor.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
A preparation method for red iron oxide, the ferrous ion extracting in hydrochloric acid pickling waste liquor is prepared ferrous sulfate, then adds ammoniacal liquor to be oxidized and neutralization reaction in ferrous sulfate, obtains red iron oxide throw out, dry through separation.
The mol ratio that ferrous ion reacts with ammoniacal liquor is 1: 5.
Claims (2)
1. a preparation method for red iron oxide, is characterized in that: the ferrous ion extracting in hydrochloric acid pickling waste liquor is prepared ferrous sulfate, then adds ammoniacal liquor to be oxidized and neutralization reaction in ferrous sulfate, obtains red iron oxide throw out, dry through separation.
2. the preparation method of a kind of red iron oxide according to claim 1, is characterized in that: the mol ratio that ferrous ion reacts with ammoniacal liquor is 1: 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206814.1A CN103508493A (en) | 2012-06-21 | 2012-06-21 | Preparation method for iron oxide red |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210206814.1A CN103508493A (en) | 2012-06-21 | 2012-06-21 | Preparation method for iron oxide red |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103508493A true CN103508493A (en) | 2014-01-15 |
Family
ID=49891988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210206814.1A Withdrawn CN103508493A (en) | 2012-06-21 | 2012-06-21 | Preparation method for iron oxide red |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103508493A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671290A (en) * | 2015-03-20 | 2015-06-03 | 王浩 | Method for preparing iron oxide red by pickling sludge |
| CN107686133A (en) * | 2017-09-22 | 2018-02-13 | 王浩 | A kind of method using calcium carbide waste residue treatment steel spent acid |
-
2012
- 2012-06-21 CN CN201210206814.1A patent/CN103508493A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104671290A (en) * | 2015-03-20 | 2015-06-03 | 王浩 | Method for preparing iron oxide red by pickling sludge |
| CN107686133A (en) * | 2017-09-22 | 2018-02-13 | 王浩 | A kind of method using calcium carbide waste residue treatment steel spent acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140115 |