JP2006257518A - 精錬用フラックス及びその製造方法 - Google Patents
精錬用フラックス及びその製造方法 Download PDFInfo
- Publication number
- JP2006257518A JP2006257518A JP2005078477A JP2005078477A JP2006257518A JP 2006257518 A JP2006257518 A JP 2006257518A JP 2005078477 A JP2005078477 A JP 2005078477A JP 2005078477 A JP2005078477 A JP 2005078477A JP 2006257518 A JP2006257518 A JP 2006257518A
- Authority
- JP
- Japan
- Prior art keywords
- cao
- sio
- mass
- flux
- caf
- 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.)
- Granted
Links
- 230000004907 flux Effects 0.000 title claims abstract description 33
- 238000007670 refining Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 238000007716 flux method Methods 0.000 title 1
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 31
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 30
- 229910004261 CaF 2 Inorganic materials 0.000 claims abstract description 27
- 238000000227 grinding Methods 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract description 26
- 230000023556 desulfurization Effects 0.000 abstract description 26
- 229910000831 Steel Inorganic materials 0.000 abstract description 24
- 239000010959 steel Substances 0.000 abstract description 24
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 238000004140 cleaning Methods 0.000 abstract description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 79
- 239000000292 calcium oxide Substances 0.000 description 40
- 235000012255 calcium oxide Nutrition 0.000 description 40
- 238000002844 melting Methods 0.000 description 12
- 230000008018 melting Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 239000011449 brick Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 239000013065 commercial product Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000010436 fluorite Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
【解決手段】CaOを27〜37質量%、Al2O3を14〜24質量%、SiO2を29〜39質量%、CaF2を10〜20質量%含むことを特徴とする精錬用フラックスであり、12CaO・7Al2O3、CaO・Al2O3、CaO・2 Al2O3、CaO・SiO2、SiO2及びCaF2を含むことを特徴とする精錬用フラックスおよびその製造方法である。
【選択図】なし
Description
アルゴンガス雰囲気下、竪型管状炉内の中央に設置されたマグネシア製ルツボに溶鋼(SS400、温度1550℃)を入れ、溶鋼100質量部あたりフラックス5質量部を竪型管状炉の上部より投入し30分間放置した。フラックスを投入してから5分後(初期脱硫率)と30分後(最終脱硫率)に溶鋼のサンプリングを行い、高周波燃焼/赤外吸収法によって硫黄濃度を測定し、脱硫率(%)=(溶鋼から除去された硫黄質量)×100/(処理前の溶鋼中の硫黄質量)、により脱硫率を算出した。結果を表1に併記する。
CaO源:生石灰、市販品
CaF2源:蛍石(CaF295%以上)
Al2O3源:焼結アルミナ粉、市販品
SiO2源:珪石、市販品
高周波炉内の中央に設置されたマグネシア製ルツボ中にフラックスを入れ(温度約1600℃)、マグネシア―クロム煉瓦(φ30×300mmの加工品の下から100mm部分)を浸漬し30分間放置した。マグネシア―クロム煉瓦を取り出して冷却後、直径を測定し、溶損率(%)=(浸漬中に損耗したマグネシア―クロム煉瓦の直径)×100/(処理前のマグネシア―クロム煉瓦の直径)、により溶損率を算出した。
Claims (3)
- CaOを27〜37質量%、Al2O3を14〜24質量%、SiO2を29〜39質量%、CaF2を10〜20質量%含むことを特徴とする精錬用フラックス。
- 12CaO・7Al2O3、CaO・Al2O3、CaO・2 Al2O3、CaO・SiO2、SiO2及びCaF2を含むことを特徴とする請求項1記載の精錬用フラックス。
- 12CaO・7 Al2O3、CaO・Al2O3及びCaO・2 Al2O3を含むクリンカー、CaO・SiO2及びSiO2を含むクリンカー、並びに、CaF2を混合粉砕、或いは、前記クリンカー及びCaF2を個別に粉砕後混合することを特徴とする精錬用フラックスの製造方法。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005078477A JP4163186B2 (ja) | 2005-03-18 | 2005-03-18 | 精錬用フラックス及びその製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005078477A JP4163186B2 (ja) | 2005-03-18 | 2005-03-18 | 精錬用フラックス及びその製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006257518A true JP2006257518A (ja) | 2006-09-28 |
| JP4163186B2 JP4163186B2 (ja) | 2008-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005078477A Expired - Fee Related JP4163186B2 (ja) | 2005-03-18 | 2005-03-18 | 精錬用フラックス及びその製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4163186B2 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008063600A (ja) * | 2006-09-05 | 2008-03-21 | Nippon Steel Corp | 含クロム溶鉄の脱硫方法 |
| JP2008274331A (ja) * | 2007-04-26 | 2008-11-13 | Denki Kagaku Kogyo Kk | 脱硫剤 |
| KR101006398B1 (ko) | 2008-07-30 | 2011-01-10 | 주식회사 포인 | 복합정련제 및 그 제조방법 |
| KR101118575B1 (ko) | 2010-03-17 | 2012-02-27 | 한양대학교 산학협력단 | 석유탈황 폐촉매의 용융환원을 위한 슬래그 조성물 |
| KR102909250B1 (ko) * | 2025-05-29 | 2026-01-07 | 주식회사 원희 | 리튬잔사 기반 슬래그 조절제 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108977609A (zh) * | 2018-08-06 | 2018-12-11 | 邵珠航 | 一种金属冶炼用脱硫剂及其制备方法 |
-
2005
- 2005-03-18 JP JP2005078477A patent/JP4163186B2/ja not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008063600A (ja) * | 2006-09-05 | 2008-03-21 | Nippon Steel Corp | 含クロム溶鉄の脱硫方法 |
| JP2008274331A (ja) * | 2007-04-26 | 2008-11-13 | Denki Kagaku Kogyo Kk | 脱硫剤 |
| KR101006398B1 (ko) | 2008-07-30 | 2011-01-10 | 주식회사 포인 | 복합정련제 및 그 제조방법 |
| KR101118575B1 (ko) | 2010-03-17 | 2012-02-27 | 한양대학교 산학협력단 | 석유탈황 폐촉매의 용융환원을 위한 슬래그 조성물 |
| KR102909250B1 (ko) * | 2025-05-29 | 2026-01-07 | 주식회사 원희 | 리튬잔사 기반 슬래그 조절제 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4163186B2 (ja) | 2008-10-08 |
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