JPS59150061A - クロム鉱石の溶融還元によるステンレス鋼の溶製方法 - Google Patents

クロム鉱石の溶融還元によるステンレス鋼の溶製方法

Info

Publication number: JPS59150061A
Authority: JP; Japan
Prior art keywords: powder; coal; ore; converter; chromium
Prior art date: 1983-02-15
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

Application number

JP2215683A

Other languages

English (en)

Japanese (ja)

Other versions

JPH0344123B2 (fr

Inventor

Tetsuya Fujii

徹也藤井

Toshikazu Sakuratani

桜谷　敏和

Hideo Nakamura

仲村　秀夫

Yoshihide Kato

嘉英加藤

Takuo Imai

今井　卓雄

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

JFE Steel Corp

Original Assignee

Kawasaki Steel Corp

Priority date (The priority date 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 date listed.)

1983-02-15

Filing date

1983-02-15

Publication date

1984-08-28

1983-02-15 Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp

1983-02-15 Priority to JP2215683A priority Critical patent/JPS59150061A/ja

1984-08-28 Publication of JPS59150061A publication Critical patent/JPS59150061A/ja

1991-07-05 Publication of JPH0344123B2 publication Critical patent/JPH0344123B2/ja

Status Granted legal-status Critical Current

Links

VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 59
239000010935 stainless steel Substances 0.000 title claims abstract description 13
229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 12
230000008018 melting Effects 0.000 title claims description 13
238000002844 melting Methods 0.000 title claims description 12
230000009467 reduction Effects 0.000 title abstract description 18
238000004519 manufacturing process Methods 0.000 title abstract description 5
239000011651 chromium Substances 0.000 claims abstract description 59
239000003245 coal Substances 0.000 claims abstract description 41
WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 8
229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 8
238000007670 refining Methods 0.000 claims abstract description 4
229910052804 chromium Inorganic materials 0.000 claims description 54
239000000843 powder Substances 0.000 claims description 49
238000000034 method Methods 0.000 claims description 13
229910000831 Steel Inorganic materials 0.000 claims description 12
239000011812 mixed powder Substances 0.000 claims description 12
239000010959 steel Substances 0.000 claims description 12
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 11
229910001882 dioxygen Inorganic materials 0.000 claims description 11
229910052751 metal Inorganic materials 0.000 claims description 5
239000002184 metal Substances 0.000 claims description 5
238000009628 steelmaking Methods 0.000 claims 1
238000007664 blowing Methods 0.000 abstract description 25
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 15
238000011084 recovery Methods 0.000 abstract description 14
239000007789 gas Substances 0.000 abstract description 13
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
229910052760 oxygen Inorganic materials 0.000 abstract description 9
239000001301 oxygen Substances 0.000 abstract description 9
229910052742 iron Inorganic materials 0.000 abstract description 7
239000000203 mixture Substances 0.000 abstract description 3
238000006722 reduction reaction Methods 0.000 description 19
238000005261 decarburization Methods 0.000 description 9
238000002156 mixing Methods 0.000 description 9
239000011261 inert gas Substances 0.000 description 8
238000006243 chemical reaction Methods 0.000 description 7
238000002347 injection Methods 0.000 description 6
239000007924 injection Substances 0.000 description 6
238000007796 conventional method Methods 0.000 description 5
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
229910052799 carbon Inorganic materials 0.000 description 4
239000002893 slag Substances 0.000 description 3
229910001020 Au alloy Inorganic materials 0.000 description 2
229910000805 Pig iron Inorganic materials 0.000 description 2
239000012159 carrier gas Substances 0.000 description 2
238000010586 diagram Methods 0.000 description 2
QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
238000005516 engineering process Methods 0.000 description 2
238000007667 floating Methods 0.000 description 2
238000005243 fluidization Methods 0.000 description 2
239000003353 gold alloy Substances 0.000 description 2
230000006872 improvement Effects 0.000 description 2
230000001590 oxidative effect Effects 0.000 description 2
230000032258 transport Effects 0.000 description 2
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
229910000676 Si alloy Inorganic materials 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
239000000956 alloy Substances 0.000 description 1
238000013459 approach Methods 0.000 description 1
238000005266 casting Methods 0.000 description 1
230000008859 change Effects 0.000 description 1
-1 coke Chemical compound 0.000 description 1
239000000571 coke Substances 0.000 description 1
238000006477 desulfuration reaction Methods 0.000 description 1
230000023556 desulfurization Effects 0.000 description 1
230000004907 flux Effects 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
239000004571 lime Substances 0.000 description 1
239000000463 material Substances 0.000 description 1
238000010309 melting process Methods 0.000 description 1
239000011707 mineral Substances 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
239000002245 particle Substances 0.000 description 1
238000011946 reduction process Methods 0.000 description 1
239000007787 solid Substances 0.000 description 1
229910001256 stainless steel alloy Inorganic materials 0.000 description 1
238000012360 testing method Methods 0.000 description 1
238000012546 transfer Methods 0.000 description 1

Landscapes

Manufacture Of Iron (AREA)

JP2215683A 1983-02-15 1983-02-15 クロム鉱石の溶融還元によるステンレス鋼の溶製方法 Granted JPS59150061A (ja)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP2215683A JPS59150061A (ja)	1983-02-15	1983-02-15	クロム鉱石の溶融還元によるステンレス鋼の溶製方法

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP2215683A JPS59150061A (ja)	1983-02-15	1983-02-15	クロム鉱石の溶融還元によるステンレス鋼の溶製方法

Publications (2)

Publication Number	Publication Date
JPS59150061A true JPS59150061A (ja)	1984-08-28
JPH0344123B2 JPH0344123B2 (fr)	1991-07-05

Family

ID=12074974

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP2215683A Granted JPS59150061A (ja)	1983-02-15	1983-02-15	クロム鉱石の溶融還元によるステンレス鋼の溶製方法

Country Status (1)

Country	Link
JP (1)	JPS59150061A (fr)

1983
- 1983-02-15 JP JP2215683A patent/JPS59150061A/ja active Granted

Also Published As

Publication number	Publication date
JPH0344123B2 (fr)	1991-07-05

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JPS63223112A (ja)	1988-09-16	鉄鉱石の溶融還元方法
JPS59150059A (ja)	1984-08-28	クロム鉱石の溶融還元によるステンレス鋼の溶製方法
JPH0499112A (ja)	1992-03-31	溶銑の同時脱珪脱硫法
JPS61139614A (ja)	1986-06-26	製鋼法
JPS6123244B2 (fr)	1986-06-05