CN103721845A - Method for separating and extracting zero-valent iron from fire-smelted iron-containing waste residue - Google Patents
Method for separating and extracting zero-valent iron from fire-smelted iron-containing waste residue Download PDFInfo
- Publication number
- CN103721845A CN103721845A CN201310737525.9A CN201310737525A CN103721845A CN 103721845 A CN103721845 A CN 103721845A CN 201310737525 A CN201310737525 A CN 201310737525A CN 103721845 A CN103721845 A CN 103721845A
- Authority
- CN
- China
- Prior art keywords
- iron
- iron powder
- powder
- zero
- fire
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000002699 waste material Substances 0.000 title abstract 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 238000007885 magnetic separation Methods 0.000 claims description 6
- 238000013467 fragmentation Methods 0.000 claims description 3
- 238000006062 fragmentation reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 238000000498 ball milling Methods 0.000 abstract 2
- 239000011449 brick Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for separating and extracting zero-valent iron from fire-smelted iron-containing waste residue. The method includes the steps that first, the iron-containing waste residue is crushed and ball-milled to be smaller than 20 meshes in a ball-milling machine with a wet method; second, tail powder and crude iron powder are separated magnetically with a wet method; third, the crude iron powder is ball-milled to be smaller than 40 meshes in the ball-milling machine with a wet method; fourth, tail iron powder and iron powder are separated magnetically with a wet method; fifth, the iron powder is sorted, iron oxide in the iron powder is removed to obtain refined iron powder, the refined iron powder is dried, and then refined iron powder with the zero-valent iron content higher than 85% is obtained. The method for separating and extracting the zero-valent iron from the fire-smelted iron-containing waste residue has the advantages that the refined iron powder with the zero-valent iron content higher than 85% can be separated and extracted from the fire-smelted iron-containing waste residue with the zero-valent iron content about 15% to be used as a reducing agent, the price of the refined iron powder is more than 30% lower than that of existing reducing iron powder in the market, and the refined iron powder is uniform in particle and fast and complete in reaction. The tail powder produced in the separation process can be used for manufacturing bricks, and the tail iron powder can be added into iron ore to be smelted again. The technology is simple, and all production water in the production process can be recycled and discharged without pollution.
Description
Technical field
The present invention relates to a kind of processing method of iron slag.
Background technology
Fire refining iron slag is to mainly contain slag, blast furnace ash, zinc oxide vessel slag, and the iron oxide in these iron slags is due to process high temperature reduction, and partial oxidation iron is reduced to fe.At present these iron slags have as paveio(u)r, have for the production of cement, but value is very low; The pollution causing to environment as discarded object having.
Summary of the invention
The object of this invention is to provide a kind of method of refining separation and Extraction fe iron slag from fire.
Technical scheme of the present invention is, a kind of from fire refining iron slag the method for separation and Extraction fe:
1,, by iron slag fragmentation, in ball mill, wet ball grinding is to being less than 20 orders;
2, tail powder and crude iron powder are isolated in wet magnetic separation;
3, by crude iron powder in ball mill wet ball grinding to being less than 40 orders;
4, tail iron powder and iron powder are isolated in wet magnetic separation;
5, iron powder is carried out to sorting, remove iron oxide wherein, obtain smart iron powder, smart iron powder is dried, obtain fe content and reach more than 85% smart iron powder.
The present invention has following technique effect, can at the fire refining iron slag separation and Extraction fe content of 15% left and right, reach more than 85% smart iron powder from fe content, as reducing agent, ratio reduced iron powder low price is in the market more than 30%, and uniform particles, reaction speed is fast, and reacts completely.The tail powder producing in separation process can be used for brickmaking, and tail iron powder can join in iron ore to be smelted again; Technique of the present invention is simple, can all recycle non-pollution discharge at the industrial water of production process.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
The specific embodiment
As shown in Figure 1, a kind of method of refining separation and Extraction fe iron slag from fire:
1,, by iron slag fragmentation, in ball mill, wet ball grinding is to being less than 20 orders;
2, tail powder and crude iron powder are isolated in wet magnetic separation;
3, by crude iron powder in ball mill wet ball grinding to being less than 40 orders;
4, tail iron powder and iron powder are isolated in wet magnetic separation;
5, iron powder is carried out to sorting, remove iron oxide wherein, obtain smart iron powder, smart iron powder is dried, obtain fe content and reach more than 85% smart iron powder.
Claims (1)
1. a method for separation and Extraction fe from fire refining iron slag, is characterized in that:
1), by iron slag fragmentation, in ball mill, wet ball grinding is to being less than 20 orders;
2), tail powder and crude iron powder are isolated in wet magnetic separation;
3), by crude iron powder in ball mill wet ball grinding to being less than 40 orders;
4), tail iron powder and iron powder are isolated in wet magnetic separation;
5), iron powder is carried out to sorting, remove iron oxide wherein, obtain smart iron powder, smart iron powder is dried, must be containing the smart iron powder of fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737525.9A CN103721845A (en) | 2013-12-27 | 2013-12-27 | Method for separating and extracting zero-valent iron from fire-smelted iron-containing waste residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737525.9A CN103721845A (en) | 2013-12-27 | 2013-12-27 | Method for separating and extracting zero-valent iron from fire-smelted iron-containing waste residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103721845A true CN103721845A (en) | 2014-04-16 |
Family
ID=50446282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737525.9A Pending CN103721845A (en) | 2013-12-27 | 2013-12-27 | Method for separating and extracting zero-valent iron from fire-smelted iron-containing waste residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103721845A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478215A (en) * | 2015-12-14 | 2016-04-13 | 攀枝花钢城集团有限公司 | Beneficiation method for steel slag tailings |
| CN106802319A (en) * | 2015-11-26 | 2017-06-06 | 苏州弗莱明磁力技术有限公司 | The detection method of simple substance iron content in a kind of powder |
| CN108554621A (en) * | 2018-05-30 | 2018-09-21 | 江苏恒加机械工程有限公司 | A kind of iron powder method of purification |
| CN115647372A (en) * | 2022-10-28 | 2023-01-31 | 攀枝花钢城集团有限公司 | Coarse fraction elemental iron particle recycling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390795A (en) * | 2002-06-19 | 2003-01-15 | 北京高路通科技发展有限公司 | Process for treating steel slag |
| WO2003025230A1 (en) * | 2001-08-09 | 2003-03-27 | Posco | Byproduct sludge recycling apparatus in ironmaking system |
| CN101229526A (en) * | 2007-12-13 | 2008-07-30 | 攀枝花环业冶金渣开发有限责任公司 | Method of using blast furnace scrap iron in slag to prepare puron materiel |
| CN102492851A (en) * | 2011-12-29 | 2012-06-13 | 攀枝花钢城集团有限公司 | Method for smelting and extracting zinc tailings by recovery method |
| CN103014196A (en) * | 2012-12-26 | 2013-04-03 | 攀枝花钢城集团有限公司 | Application method of blast furnace slag fine material |
-
2013
- 2013-12-27 CN CN201310737525.9A patent/CN103721845A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003025230A1 (en) * | 2001-08-09 | 2003-03-27 | Posco | Byproduct sludge recycling apparatus in ironmaking system |
| CN1390795A (en) * | 2002-06-19 | 2003-01-15 | 北京高路通科技发展有限公司 | Process for treating steel slag |
| CN101229526A (en) * | 2007-12-13 | 2008-07-30 | 攀枝花环业冶金渣开发有限责任公司 | Method of using blast furnace scrap iron in slag to prepare puron materiel |
| CN102492851A (en) * | 2011-12-29 | 2012-06-13 | 攀枝花钢城集团有限公司 | Method for smelting and extracting zinc tailings by recovery method |
| CN103014196A (en) * | 2012-12-26 | 2013-04-03 | 攀枝花钢城集团有限公司 | Application method of blast furnace slag fine material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802319A (en) * | 2015-11-26 | 2017-06-06 | 苏州弗莱明磁力技术有限公司 | The detection method of simple substance iron content in a kind of powder |
| CN105478215A (en) * | 2015-12-14 | 2016-04-13 | 攀枝花钢城集团有限公司 | Beneficiation method for steel slag tailings |
| CN108554621A (en) * | 2018-05-30 | 2018-09-21 | 江苏恒加机械工程有限公司 | A kind of iron powder method of purification |
| CN115647372A (en) * | 2022-10-28 | 2023-01-31 | 攀枝花钢城集团有限公司 | Coarse fraction elemental iron particle recycling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101713007B (en) | Technique method for directly producing sponge iron by carrying out deep reduction of vanadium-extracted tailings | |
| CN103397213B (en) | Method for decomposing and extracting Baotou rare earth ore through mixed alkali roasting process | |
| CN102094123B (en) | Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium | |
| CN102363218B (en) | Method for producing copper-powder-containing iron by reducing copper-containing furnace cinders directly | |
| CN102839278B (en) | Method for extracting iron from iron mine tailings through strong magnetic, pre-concentration deep reduction | |
| CN101775485B (en) | Discarded tailing preconcentration-magnetizing roast iron-extracting and sulphur-reducing beneficiation method of sulphur-smelting cinder | |
| CN103316761A (en) | Separation method for ore containing ilmenite and chromite | |
| CN113787085A (en) | A method for extracting Fe, Zn and Pb in electric furnace dust and utilizing them at high value | |
| CN102828039A (en) | Recycling method of slag of copper melting pool smelting furnace | |
| CN103721845A (en) | Method for separating and extracting zero-valent iron from fire-smelted iron-containing waste residue | |
| CN102220479A (en) | Beneficiation method for comprehensive recovery of valuable metals from sulfuric acid residues through chlorination and segregation | |
| CN104550992A (en) | Processing and production method for secondarily reduced powder | |
| PH12014502103A1 (en) | Method for producing hematite for ironmaking | |
| CN103215437A (en) | A kind of method that utilizes nickel slag, blast furnace gas ash and steelmaking OG mud to produce nickel-containing pearl iron | |
| CN103343225A (en) | Comprehensive utilization method of ferriferous fayalite material | |
| CN103962219B (en) | Utilize that alkali soaks, classification and magnetic reconnection close the method for selecting again v-ti magnetite concentrate | |
| CN103977880B (en) | Method for recleaning of vanadium-titanium magnetite concentrates by utilizing alkaline leaching, desliming and magnetic-gravity combined separation | |
| CN101586196A (en) | Vanadium-extracting process by blank roasting alkali leaching ion exchange method | |
| CN102888520A (en) | Method for efficiently extracting nickel, cobalt, copper and platinum group metals from complex nickel-copper concentrate | |
| CN107142378A (en) | The extracting method of lead in a kind of sintering flue dust | |
| CN105506298B (en) | A kind of environment-friendly high-efficiency resource recovery process of low-grade matte slag | |
| CN108816501A (en) | A process for iron extraction by sintering and dedusting ash magnetic seed magnetization dry separation | |
| CN109465094B (en) | A kind of preparation method of iron powder based on red mud extract | |
| CN116814952B (en) | A method for collaborative treatment of electric furnace smelting solid waste | |
| CN102059173B (en) | Method for extracting iron from slag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |