CN1962890A - Method for making dephosphorization agent from basic skimming - Google Patents
Method for making dephosphorization agent from basic skimming Download PDFInfo
- Publication number
- CN1962890A CN1962890A CN 200610134670 CN200610134670A CN1962890A CN 1962890 A CN1962890 A CN 1962890A CN 200610134670 CN200610134670 CN 200610134670 CN 200610134670 A CN200610134670 A CN 200610134670A CN 1962890 A CN1962890 A CN 1962890A
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- CN
- China
- Prior art keywords
- skimming
- basic
- dephosphorization agent
- sodium
- heating tank
- 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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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a making method of alkaline scum dephosphorized agent, which comprises the following steps: allocating the raw material with sodium carbonate, sodium sulfate and sodium chloride; heating; dissolving the material; spraying; graining; cooling. The invention improves the dephosphorizing effect obviously.
Description
Technical field
The invention belongs to the research and development field of molten iron dephosphorization agent.
Background technology
At present, in producing, iron and steel enterprise is raising steel product quality, all to remove phosphorus contained in the molten iron, sulphur, silicon etc., the present processing that removes for molten iron phosphorus composition, all be to adopt the dephosphorizing agent of making by the calcium based material to carry out, as lime carbonate, calcium hydroxide, calcium sulfate, calcium chloride or the like.But in long-term reality, show that the dephosphorizing agent of being made by the calcium based material is not fine to the effect that phosphorus composition in the molten iron removes processing, so the development of novel dephosphorizing agent is a great research topic of units concerned always.From present circumstances, also do not use in practice with same procedure products made thereby of the present invention.
Summary of the invention
The manufacture method that the purpose of this invention is to provide a kind of dephosphorization effect ideal dephosphorizing agent is to solve the existing dephosphorizing agent practical problems of being made by the calcium based material of non-ideal use.The present invention is achieved by following technical solution.Comprise technical formula and manufacture method.
1, technical formula
The composition weight percent
Yellow soda ash 40～60
Sodium sulfate 25～35
Sodium-chlor 5～10
Caustic soda 1～5
Clorox 0.5～3
2, manufacturing process
Above formula materials is put into heating tank, it is mixed through fully stirring.5～8% ratio in formula materials weight adds water again.Then heating tank is heated.Heating temperature is at 170～200 ℃, and heat-up time was at 40～60 minutes.After treating that each material dissolves fully, with the winding-up machine with solution with vaporific ejection.After fluid to be painted drops onto ground, promptly form molecule, after treating to cool off fully, the dephosphorizing agent product.The inventive method is simple especially, and it is very good through experiment effect to make product.The dephosphorization rate of existing calcium based material has only about 30～40%.And the dephosphorization rate of this product can reach 90～95%.Dephosphorization effect is good, and the quality of steel products then can increase substantially.
The present invention does not have accompanying drawing
Embodiment
Technical solution of the present invention is as follows:
1, technical formula
The composition weight percent
Yellow soda ash 55
Sodium sulfate 30
Sodium-chlor 10
Caustic soda 3
Clorox 2
2, manufacturing process
Each material in the technical formula is put into heating tank, stir.The water that adds formula materials weight 7% again.Then heating tank is heated.Heating temperature is at 190 ℃, and be 55 minutes heat-up time, treat that each material dissolves fully after, with the winding-up machine with solution with vaporific ejection, to be painted go out the drop cooling after, promptly become the dephosphorizing agent product.
Claims (1)
1, the manufacture method of dephosphorization agent from basic skimming is characterized in that:
Technical formula
The composition weight percent
Yellow soda ash 40～60
Sodium sulfate 25～35
Sodium-chlor 5～10
Caustic soda 1～5
Clorox 0.5～3
Manufacturing process
Above formula materials is put into heating tank, through fully stirring it is mixed, 5～8% ratio in formula materials weight adds water again, then heating tank is heated, Heating temperature is at 170～200 ℃, heat-up time is at 40～60 minutes, treat that each material dissolves fully after, with the winding-up machine with solution with vaporific ejection, cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101346708A CN100447256C (en) | 2006-12-07 | 2006-12-07 | Method for making dephosphorization agent from basic skimming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101346708A CN100447256C (en) | 2006-12-07 | 2006-12-07 | Method for making dephosphorization agent from basic skimming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1962890A true CN1962890A (en) | 2007-05-16 |
| CN100447256C CN100447256C (en) | 2008-12-31 |
Family
ID=38082116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101346708A Expired - Fee Related CN100447256C (en) | 2006-12-07 | 2006-12-07 | Method for making dephosphorization agent from basic skimming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100447256C (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046139C (en) * | 1997-10-08 | 1999-11-03 | 冶金工业部钢铁研究总院 | Pre-dephosporizing method for molten iron |
| CN1224063A (en) * | 1997-12-26 | 1999-07-28 | 北京科技大学 | Catalytic calcium ferrite dephosphorizing agent |
| RU2209252C1 (en) * | 2002-02-08 | 2003-07-27 | Сибирский государственный индустриальный университет | Method of dephosphorization of ferromanganese |
| CN1229506C (en) * | 2003-02-28 | 2005-11-30 | 宝山钢铁股份有限公司 | Melted iron dephosphorization agent using vessel slag as raw material |
| UA66219C2 (en) * | 2003-08-19 | 2006-11-15 | Z I Nekrasov Inst Of Ferrous M | Method for dephosphorization and desulfurization of cast iron |
| CN1664127A (en) * | 2005-03-24 | 2005-09-07 | 刘东业 | Process for dephosphorization and desulfurization of molten iron |
-
2006
- 2006-12-07 CN CNB2006101346708A patent/CN100447256C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN100447256C (en) | 2008-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liaoning Fenghua Industrial Co., Ltd. Assignor: Shi Enping Contract record no.: 2010210000180 Denomination of invention: Method for making dephosphorization agent from basic skimming Granted publication date: 20081231 License type: Exclusive License Open date: 20070516 Record date: 20101130 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20121207 |