CN104551013A - Method for controlling particle size of carbonyl iron powder during decomposition process - Google Patents
Method for controlling particle size of carbonyl iron powder during decomposition process Download PDFInfo
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- CN104551013A CN104551013A CN201410733213.5A CN201410733213A CN104551013A CN 104551013 A CN104551013 A CN 104551013A CN 201410733213 A CN201410733213 A CN 201410733213A CN 104551013 A CN104551013 A CN 104551013A
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- carbonyl iron
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- iron dust
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Abstract
The invention relates to a method for controlling particle size of carbonyl iron powder during decomposition process. The method comprises the following steps: controlling the volume proportion of carbonyl iron evaporation capacity, carbonyl iron steam and reflux carbon monoxide, and regulating the particle size and particle size distribution of the carbonyl iron powder through the concentration of carbonyl iron entering a decomposer and the pressure in the decomposer. The method is characterized in that the particle size and particle size distribution of the carbonyl iron powder can be regulated from the origin of the carbonyl iron by controlling all technology parameters of the carbonyl iron during the decomposition process.
Description
Technical field
The present invention relates to a kind of method controlling granularity in carbonyl iron dust in decomposable process.
Background technology
The iron powder adopting carbonylation metallurgy method to produce is more and more extensive in the application of each technical field, also more and more higher to the requirement of powder, especially in powder the size of granularity and the impact of size distribution on product quality larger, and decomposition is also the important step of iron powder output, therefore controls to regulate the granularity of iron powder very necessary in decomposable process.
Summary of the invention
Object of the present invention is exactly to provide a kind of method that effectively can control granularity in carbonyl iron dust in decomposable process.
The object of the invention is to be achieved through the following technical solutions.
A kind of method controlling granularity in carbonyl iron dust in decomposable process, it is characterized in that its process is the volume proportion by controlling carbonyl iron evaporation capacity, carbonyl iron steam and backflow carbon monoxide, carbonyl iron enters the pressure in the concentration Sum decomposition device of decomposer, the granule size of adjustment carbonyl iron dust and size distribution.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, is characterized in that its carbonyl iron evaporation capacity controls at 6500-9500g/min; In decomposable process, carbon monoxide capacity of returns controls at 3000-6000g/min; In decomposable process, decomposer internal pressure controls at 3-10KPa.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, it is characterized in that controlling carbonyl iron evaporation capacity is 6500 ± 100g/min, the capacity of returns of carbon monoxide controls 3000 ± 100g/min, and decomposer internal pressure controls at 3-4Kpa, the carbonyl iron dust D obtained
10=2.2um, D
90=12.6um.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, it is characterized in that controlling carbonyl iron evaporation capacity is 6500 ± 100g/min, the capacity of returns of carbon monoxide controls 5500 ± 100g/min, and decomposer internal pressure controls at 5-6Kpa, the carbonyl iron dust D obtained
10=1.7um, D
90=8.3um.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, it is characterized in that controlling carbonyl iron evaporation capacity is 7500 ± 100g/min, the capacity of returns of carbon monoxide controls 5500 ± 100g/min, and decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=2.1um, D
90=9.6um.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, it is characterized in that controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, the capacity of returns of carbon monoxide controls 3000 ± 100g/min, and decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=5.7um, D
90=29.3um.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, it is characterized in that controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, the capacity of returns of carbon monoxide controls 3000 ± 100g/min, and decomposer internal pressure controls at 3-4Kpa, the carbonyl iron dust D obtained
10=7.7um, D
90=23.1um.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, it is characterized in that controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, the capacity of returns of carbon monoxide controls 6000 ± 100g/min, and decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=6.4um, D
90=25.3um.
A kind of method controlling granularity in carbonyl iron dust in decomposable process of the present invention, utilize volume proportion and the decomposer internal pressure of carbonyl iron evaporation capacity, carbonyl iron steam and the backflow carbon monoxide entered in decomposer, by controlling evaporation capacity, the capacity of returns Sum decomposition device internal pressure in carbonyl iron decomposable process, granule size and the size distribution of carbonyl iron dust can be adjusted from source, make iron powder Granularity Distribution narrower, be applicable to different fields; By regulating different technical parameters, product of different nature can be obtained.
Detailed description of the invention
A kind of method controlling granularity in carbonyl iron dust in decomposable process, its process is the volume proportion by controlling carbonyl iron evaporation capacity, carbonyl iron steam and backflow carbon monoxide, carbonyl iron enters the pressure in the concentration Sum decomposition device of decomposer, the granule size of adjustment carbonyl iron dust and size distribution; Its carbonyl iron evaporation capacity controls at 6500-9500g/min; In decomposable process, carbon monoxide capacity of returns controls at 3000-6000g/min; In decomposable process, decomposer internal pressure controls at 3-10KPa.
Embodiment 1
Controlling carbonyl iron evaporation capacity is 6500 ± 100g/min, and the capacity of returns of carbon monoxide controls 3000 ± 100g/min, and decomposer internal pressure controls at 3-4Kpa, the carbonyl iron dust D obtained
10=2.2um, D
90=12.6um.
Embodiment 2
Controlling carbonyl iron evaporation capacity is 6500 ± 100g/min, and the capacity of returns of carbon monoxide controls 5500 ± 100g/min, and decomposer internal pressure controls at 5-6Kpa, the carbonyl iron dust D obtained
10=1.7um, D
90=8.3um.
Embodiment 3
Controlling carbonyl iron evaporation capacity is 7500 ± 100g/min, and the capacity of returns of carbon monoxide controls 5500 ± 100g/min, and decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=2.1um, D
90=9.6um.
Embodiment 4
Controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, and the capacity of returns of carbon monoxide controls 3000 ± 100g/min, and decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=5.7um, D
90=29.3um.
Embodiment 5
Controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, and the capacity of returns of carbon monoxide controls 3000 ± 100g/min, and decomposer internal pressure controls at 3-4Kpa, the carbonyl iron dust D obtained
10=7.7um, D
90=23.1um.
Embodiment 6
Controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, and the capacity of returns of carbon monoxide controls 6000 ± 100g/min, and decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=6.4um, D
90=25.3um.
Claims (8)
1. one kind controls the method for granularity in carbonyl iron dust in decomposable process, it is characterized in that its process is the volume proportion by controlling carbonyl iron evaporation capacity, carbonyl iron steam and backflow carbon monoxide, carbonyl iron enters the pressure in the concentration Sum decomposition device of decomposer, the granule size of adjustment carbonyl iron dust and size distribution.
2. a kind of method controlling granularity in carbonyl iron dust in decomposable process according to claim 1, is characterized in that its carbonyl iron evaporation capacity controls at 6500-9500g/min; In decomposable process, carbon monoxide capacity of returns controls at 3000-6000g/min; In decomposable process, decomposer internal pressure controls at 3-10KPa.
3. a kind of method controlling granularity in carbonyl iron dust in decomposable process according to claim 1, it is characterized in that controlling carbonyl iron evaporation capacity is 6500 ± 100g/min, the capacity of returns of carbon monoxide controls 3000 ± 100g/min, decomposer internal pressure controls at 3-4Kpa, the carbonyl iron dust D obtained
10=2.2um, D
90=12.6um.
4. a kind of method controlling granularity in carbonyl iron dust in decomposable process according to claim 1, it is characterized in that controlling carbonyl iron evaporation capacity is 6500 ± 100g/min, the capacity of returns of carbon monoxide controls 5500 ± 100g/min, decomposer internal pressure controls at 5-6Kpa, the carbonyl iron dust D obtained
10=1.7um, D
90=8.3um.
5. a kind of method controlling granularity in carbonyl iron dust in decomposable process according to claim 1, it is characterized in that controlling carbonyl iron evaporation capacity is 7500 ± 100g/min, the capacity of returns of carbon monoxide controls 5500 ± 100g/min, decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=2.1um, D
90=9.6um.
6. a kind of method controlling granularity in carbonyl iron dust in decomposable process according to claim 1, it is characterized in that controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, the capacity of returns of carbon monoxide controls 3000 ± 100g/min, decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=5.7um, D
90=29.3um.
7. a kind of method controlling granularity in carbonyl iron dust in decomposable process according to claim 1, it is characterized in that controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, the capacity of returns of carbon monoxide controls 3000 ± 100g/min, decomposer internal pressure controls at 3-4Kpa, the carbonyl iron dust D obtained
10=7.7um, D
90=23.1um.
8. a kind of method controlling granularity in carbonyl iron dust in decomposable process according to claim 1, it is characterized in that controlling carbonyl iron evaporation capacity is 9500 ± 100g/min, the capacity of returns of carbon monoxide controls 6000 ± 100g/min, decomposer internal pressure controls at 8-9Kpa, the carbonyl iron dust D obtained
10=6.4um, D
90=25.3um.
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| CN201410733213.5A CN104551013A (en) | 2014-12-07 | 2014-12-07 | Method for controlling particle size of carbonyl iron powder during decomposition process |
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| CN201410733213.5A CN104551013A (en) | 2014-12-07 | 2014-12-07 | Method for controlling particle size of carbonyl iron powder during decomposition process |
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| CN104551013A true CN104551013A (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059183A (en) * | 2020-01-02 | 2021-07-02 | 吉林卓创新材料有限公司 | Preparation method of carbonyl iron powder special for iron powder core |
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| CN1821095A (en) * | 2006-03-17 | 2006-08-23 | 金川集团有限公司 | Process for producing carbonyl iron |
| CN1947901A (en) * | 2006-11-24 | 2007-04-18 | 金川集团有限公司 | Method for producing nano-iron powder |
| CN101138793A (en) * | 2006-09-04 | 2008-03-12 | 王兵 | Nanometer powdered iron producing technique |
| CN101209864A (en) * | 2007-12-25 | 2008-07-02 | 金川集团有限公司 | Method for producing carbonyl iron powder |
| CN102009187A (en) * | 2010-11-23 | 2011-04-13 | 金川集团有限公司 | Method for preparing rhombic nickel powder |
| CN102149463A (en) * | 2008-09-10 | 2011-08-10 | 巴斯夫欧洲公司 | Integrated method for producing carbonyl iron powder and hydrocarbons |
| CN103128311A (en) * | 2013-03-15 | 2013-06-05 | 金川集团股份有限公司 | Method for producing superfine carbonyl iron powders |
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2014
- 2014-12-07 CN CN201410733213.5A patent/CN104551013A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821095A (en) * | 2006-03-17 | 2006-08-23 | 金川集团有限公司 | Process for producing carbonyl iron |
| CN101138793A (en) * | 2006-09-04 | 2008-03-12 | 王兵 | Nanometer powdered iron producing technique |
| CN1947901A (en) * | 2006-11-24 | 2007-04-18 | 金川集团有限公司 | Method for producing nano-iron powder |
| CN101209864A (en) * | 2007-12-25 | 2008-07-02 | 金川集团有限公司 | Method for producing carbonyl iron powder |
| CN102149463A (en) * | 2008-09-10 | 2011-08-10 | 巴斯夫欧洲公司 | Integrated method for producing carbonyl iron powder and hydrocarbons |
| US8608824B2 (en) * | 2008-09-10 | 2013-12-17 | Basf Se | Integrated method for producing carbonyl iron powder and hydrocarbons |
| CN102009187A (en) * | 2010-11-23 | 2011-04-13 | 金川集团有限公司 | Method for preparing rhombic nickel powder |
| CN103128311A (en) * | 2013-03-15 | 2013-06-05 | 金川集团股份有限公司 | Method for producing superfine carbonyl iron powders |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113059183A (en) * | 2020-01-02 | 2021-07-02 | 吉林卓创新材料有限公司 | Preparation method of carbonyl iron powder special for iron powder core |
| CN113059183B (en) * | 2020-01-02 | 2023-05-19 | 吉林卓创新材料有限公司 | Preparation method of carbonyl iron powder special for iron powder core |
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Application publication date: 20150429 |