CN1974819A - Phosphorus-containing pig iron for electrolyzing aluminium - Google Patents
Phosphorus-containing pig iron for electrolyzing aluminium Download PDFInfo
- Publication number
- CN1974819A CN1974819A CN 200610162012 CN200610162012A CN1974819A CN 1974819 A CN1974819 A CN 1974819A CN 200610162012 CN200610162012 CN 200610162012 CN 200610162012 A CN200610162012 A CN 200610162012A CN 1974819 A CN1974819 A CN 1974819A
- Authority
- CN
- China
- Prior art keywords
- phosphorus
- pig iron
- containing pig
- iron
- aluminium
- 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
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 33
- 239000011574 phosphorus Substances 0.000 title claims abstract description 32
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910000805 Pig iron Inorganic materials 0.000 title claims abstract description 26
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 17
- 239000004411 aluminium Substances 0.000 title claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 239000003610 charcoal Substances 0.000 description 9
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The phosphorus-containing pig iron for electrolyzing aluminum is used in connecting the steel claw and the carbon block for electrolytic aluminum production. The phosphorus-containing pig iron contains C 2.8-3.6 wt%, P 0.6-1.2 wt%, Si 2-4 wt%, Mn 0.3-0.7 wt%, and Fe and inevitable impurities for the rest including S less than 0.12 wt%. The chemical components of phosphorus-containing pig iron is the main factor affecting the voltage drop in the anode carbon block assembly, and the present invention has optimized composition of the phosphorus-containing pig iron, low voltage drop and low power consumption. In addition, the molten iron of the phosphorus-containing pig iron has high flowability and no slag formation in the IF furnace mouth and the ladle.
Description
Technical field
A kind of phosphorus-containing pig iron for electrolyzing aluminium relates to a kind of phosphorus pig iron that the production of electrolysis of aluminum aluminium is used to link steel pawl and charcoal piece that is used for.
Background technology
Used for aluminium electrolysis pre-baked anode carbon blocks group is made of charcoal piece, steel pawl and aluminium guide bar three parts, binding between steel pawl and the charcoal piece adopts the cast of the fused phosphorus pig iron to form, Aluminium Electrolysis requires this two portions binding to have enough big intensity and less resistance, and require the phosphorus pig iron part room temperature fragility of cast good, easily pressure-off.The principal element that influences the pressure drop of iron charcoal aborning is a phosphorus pig iron chemical ingredients, and carbon is remarkable to the influence of phosphorus pig iron linear expansivity, and phosphoric to the influence of phosphorus pig iron room temperature fragility significantly.
Traditional phosphorus pig iron prescription is middle carbon (2.5%～3.5%), low-phosphorous (0.3%～0.9%), the prescription that adopts high-carbon low-phosphorus is also arranged, on intermediate frequency furnace, use have that the molten iron flowability is bad, intermediate frequency furnace fire door and the obvious slagging scorification problem of two-maing ladle, influence work-ing life of anode casting operation and intermediate frequency furnace.
Summary of the invention
The objective of the invention is the deficiency that exists at above-mentioned prior art, provide a kind of and can solve effectively that the molten iron flowability is bad, the problem of intermediate frequency furnace fire door and the slagging scorification of two-maing ladle, reduce the phosphorus-containing pig iron for electrolyzing aluminium of iron charcoal pressure drop.
The objective of the invention is to be achieved through the following technical solutions.
A kind of phosphorus-containing pig iron for electrolyzing aluminium, it is characterized in that its weight percent consists of: 2.8%～3.6% carbon, 0.6%～1.2% phosphorus, 2%～4% silicon, 0.3%～0.7% manganese, surplus are iron and unavoidable impurities, wherein S＜0.12%.
Because phosphorus pig iron chemical ingredients is the principal element that influences the pressure drop of anode carbon block group iron charcoal, the present invention is according to carbon and phosphoric phosphorus pig iron Effect on Performance situation, on the basis of the phosphorus pig iron prescription that proterotype identification is determined, by contrast optimization Test to multiple phosphorus pig iron composition, the phosphorus pig iron that provides, molten iron good fluidity, the intermediate frequency furnace fire door and the not slagging scorification of two-maing ladle, behind the groove, reduced the pressure drop of aluminium charcoal on the anode that assembles, helped saving energy and reduce the cost.
Embodiment
A kind of phosphorus-containing pig iron for electrolyzing aluminium, its weight percent consists of: 2.8%～3.6% carbon, 0.6%～1.2% phosphorus, 2%～4% silicon, 0.3%～0.7% manganese, surplus are iron and unavoidable impurities, wherein S＜0.12%.
Embodiment 1
Adopt its weight percent to consist of: 2.8% carbon, 1.1% phosphorus, 2.3% silicon, 0.4% manganese, surplus is iron and unavoidable impurities, the phosphorus pig iron of 0.11% sulphur carries out the anode casting operation, the molten iron good fluidity, the intermediate frequency furnace fire door and the not slagging scorification of bottom of two-maing ladle, behind the groove, move aluminium charcoal pressure drop decline 2.2mV through electrolysis on the anode that assembles.
Embodiment 2
Adopt its weight percent to consist of: 3.6% carbon, 0.8% phosphorus, 2% silicon, 0.3% manganese, surplus is iron and unavoidable impurities, the phosphorus pig iron of 0.12% sulphur carries out the anode casting operation, the molten iron good fluidity, the intermediate frequency furnace fire door and the not slagging scorification of bottom of two-maing ladle, behind the groove, move aluminium charcoal pressure drop decline 2.5mV through electrolysis on the anode that assembles.
Claims (1)
1. phosphorus-containing pig iron for electrolyzing aluminium, it is characterized in that its weight percent consists of: 2.8%～3.6% carbon, 0.6%～1.2% phosphorus, 2%～4% silicon, 0.3%～0.7% manganese, surplus are iron and unavoidable impurities, S＜0.12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610162012 CN1974819A (en) | 2006-12-08 | 2006-12-08 | Phosphorus-containing pig iron for electrolyzing aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610162012 CN1974819A (en) | 2006-12-08 | 2006-12-08 | Phosphorus-containing pig iron for electrolyzing aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1974819A true CN1974819A (en) | 2007-06-06 |
Family
ID=38125164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610162012 Pending CN1974819A (en) | 2006-12-08 | 2006-12-08 | Phosphorus-containing pig iron for electrolyzing aluminium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1974819A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002732A (en) * | 2010-12-02 | 2011-04-06 | 云南云铝涌鑫铝业有限公司 | Preparation method of phosphorus pig iron cathode for aluminum electrolysis |
| CN102443733A (en) * | 2011-12-09 | 2012-05-09 | 云南铝业股份有限公司 | Phosphorus pig iron for improving conducting performance of graphite cathode carbon block |
| CN105112772A (en) * | 2015-09-16 | 2015-12-02 | 湖南创元新材料有限公司 | Phosphorous pig iron and preparation method thereof |
-
2006
- 2006-12-08 CN CN 200610162012 patent/CN1974819A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002732A (en) * | 2010-12-02 | 2011-04-06 | 云南云铝涌鑫铝业有限公司 | Preparation method of phosphorus pig iron cathode for aluminum electrolysis |
| CN102002732B (en) * | 2010-12-02 | 2013-07-24 | 云南云铝涌鑫铝业有限公司 | Preparation method of phosphorus pig iron cathode for aluminum electrolysis |
| CN102443733A (en) * | 2011-12-09 | 2012-05-09 | 云南铝业股份有限公司 | Phosphorus pig iron for improving conducting performance of graphite cathode carbon block |
| CN105112772A (en) * | 2015-09-16 | 2015-12-02 | 湖南创元新材料有限公司 | Phosphorous pig iron and preparation method thereof |
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| 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 |