CS213319B2 - Method of direct reduction of the powder oxide of metal - Google Patents

Method of direct reduction of the powder oxide of metal Download PDF

Info

Publication number: CS213319B2
Authority: CS; Czechoslovakia
Prior art keywords: converter; metal; oxide; blown; molten
Prior art date: 1973-11-28

Application number

CS746247A

Other languages

Czech (cs)

English (en)

Inventor

Karl-Erik Oeberg

Lars-Gunnar Norberg

Original Assignee

Uddeholms Ab

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.)

1973-11-28

Filing date

1974-09-11

Publication date

1982-04-09

1974-09-11 Application filed by Uddeholms Ab filed Critical Uddeholms Ab

1982-04-09 Publication of CS213319B2 publication Critical patent/CS213319B2/cs

Links

229910052751 metal Inorganic materials 0.000 title claims abstract description 76
239000002184 metal Substances 0.000 title claims abstract description 76
238000000034 method Methods 0.000 title claims abstract description 31
239000000843 powder Substances 0.000 title claims abstract description 14
238000010438 heat treatment Methods 0.000 claims abstract description 34
230000006698 induction Effects 0.000 claims abstract description 24
229910044991 metal oxide Inorganic materials 0.000 claims abstract description 24
150000004706 metal oxides Chemical class 0.000 claims abstract description 24
239000012159 carrier gas Substances 0.000 claims abstract description 19
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 51
229910052799 carbon Inorganic materials 0.000 claims description 50
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
238000007664 blowing Methods 0.000 claims description 25
229910000831 Steel Inorganic materials 0.000 claims description 24
239000010959 steel Substances 0.000 claims description 24
239000000155 melt Substances 0.000 claims description 22
229910052742 iron Inorganic materials 0.000 claims description 16
239000012141 concentrate Substances 0.000 claims description 15
238000006243 chemical reaction Methods 0.000 claims description 11
238000005261 decarburization Methods 0.000 claims description 11
239000000203 mixture Substances 0.000 claims description 11
239000012255 powdered metal Substances 0.000 claims description 11
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
239000007789 gas Substances 0.000 claims description 9
239000001301 oxygen Substances 0.000 claims description 9
229910052760 oxygen Inorganic materials 0.000 claims description 9
239000002002 slurry Substances 0.000 claims description 8
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
229910052759 nickel Inorganic materials 0.000 claims description 5
229910000480 nickel oxide Inorganic materials 0.000 claims description 5
GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 5
239000002826 coolant Substances 0.000 claims 1
239000000725 suspension Substances 0.000 abstract description 9
239000007787 solid Substances 0.000 abstract description 5
239000002245 particle Substances 0.000 abstract description 3
230000000149 penetrating effect Effects 0.000 abstract 1
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 18
238000004519 manufacturing process Methods 0.000 description 18
238000006722 reduction reaction Methods 0.000 description 17
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 16
229910052804 chromium Inorganic materials 0.000 description 15
239000011651 chromium Substances 0.000 description 15
238000004804 winding Methods 0.000 description 15
235000008504 concentrate Nutrition 0.000 description 14
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
229910052710 silicon Inorganic materials 0.000 description 12
239000010703 silicon Substances 0.000 description 12
229910000805 Pig iron Inorganic materials 0.000 description 9
WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 9
229910052786 argon Inorganic materials 0.000 description 9
UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 8
229910052748 manganese Inorganic materials 0.000 description 8
239000011572 manganese Substances 0.000 description 8
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
239000003245 coal Substances 0.000 description 7
238000011946 reduction process Methods 0.000 description 7
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
238000005275 alloying Methods 0.000 description 6
230000001965 increasing effect Effects 0.000 description 6
239000012071 phase Substances 0.000 description 6
239000002893 slag Substances 0.000 description 6
229910000423 chromium oxide Inorganic materials 0.000 description 5
235000013980 iron oxide Nutrition 0.000 description 5
239000007788 liquid Substances 0.000 description 5
235000014483 powder concentrate Nutrition 0.000 description 5
229910052717 sulfur Inorganic materials 0.000 description 5
239000011593 sulfur Substances 0.000 description 5
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
229910045601 alloy Inorganic materials 0.000 description 4
239000000956 alloy Substances 0.000 description 4
BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 4
ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
239000000292 calcium oxide Substances 0.000 description 4
239000003638 chemical reducing agent Substances 0.000 description 4
229940117975 chromium trioxide Drugs 0.000 description 4
GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 4
238000005272 metallurgy Methods 0.000 description 4
229910001220 stainless steel Inorganic materials 0.000 description 4
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
229910052721 tungsten Inorganic materials 0.000 description 4
239000010937 tungsten Substances 0.000 description 4
229910000851 Alloy steel Inorganic materials 0.000 description 3
VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 3
230000003247 decreasing effect Effects 0.000 description 3
238000010586 diagram Methods 0.000 description 3
SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
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 description 3
150000002739 metals Chemical class 0.000 description 3
229910052757 nitrogen Inorganic materials 0.000 description 3
238000010079 rubber tapping Methods 0.000 description 3
229910000599 Cr alloy Inorganic materials 0.000 description 2
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
229910001315 Tool steel Inorganic materials 0.000 description 2
230000033228 biological regulation Effects 0.000 description 2
239000003575 carbonaceous material Substances 0.000 description 2
238000005266 casting Methods 0.000 description 2
239000000788 chromium alloy Substances 0.000 description 2
239000000571 coke Substances 0.000 description 2
238000007710 freezing Methods 0.000 description 2
230000008014 freezing Effects 0.000 description 2
229930195733 hydrocarbon Natural products 0.000 description 2
150000002430 hydrocarbons Chemical class 0.000 description 2
239000012535 impurity Substances 0.000 description 2
230000001939 inductive effect Effects 0.000 description 2
239000007791 liquid phase Substances 0.000 description 2
238000010310 metallurgical process Methods 0.000 description 2
229910052750 molybdenum Inorganic materials 0.000 description 2
239000011733 molybdenum Substances 0.000 description 2
239000012256 powdered iron Substances 0.000 description 2
238000007670 refining Methods 0.000 description 2
239000010935 stainless steel Substances 0.000 description 2
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
229910000640 Fe alloy Inorganic materials 0.000 description 1
229910000997 High-speed steel Inorganic materials 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
230000002411 adverse Effects 0.000 description 1
239000003830 anthracite Substances 0.000 description 1
229910002091 carbon monoxide Inorganic materials 0.000 description 1
239000003610 charcoal Substances 0.000 description 1
239000003153 chemical reaction reagent Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
239000000470 constituent Substances 0.000 description 1
238000001816 cooling Methods 0.000 description 1
230000003009 desulfurizing effect Effects 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000010891 electric arc Methods 0.000 description 1
239000000839 emulsion Substances 0.000 description 1
239000006260 foam Substances 0.000 description 1
-1 for example Chemical compound 0.000 description 1
239000000295 fuel oil Substances 0.000 description 1
239000010439 graphite Substances 0.000 description 1
229910002804 graphite Inorganic materials 0.000 description 1
229910052595 hematite Inorganic materials 0.000 description 1
239000011019 hematite Substances 0.000 description 1
238000000265 homogenisation Methods 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
239000004615 ingredient Substances 0.000 description 1
230000003993 interaction Effects 0.000 description 1
VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
229910000734 martensite Inorganic materials 0.000 description 1
239000000463 material Substances 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
239000006262 metallic foam Substances 0.000 description 1
238000002156 mixing Methods 0.000 description 1
229910000476 molybdenum oxide Inorganic materials 0.000 description 1
QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
230000001590 oxidative effect Effects 0.000 description 1
PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
239000008188 pellet Substances 0.000 description 1
239000002994 raw material Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1
229910001930 tungsten oxide Inorganic materials 0.000 description 1
238000009489 vacuum treatment Methods 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Manufacturing & Machinery (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Carbon Steel Or Casting Steel Manufacturing (AREA)

CS746247A 1973-11-28 1974-09-11 Method of direct reduction of the powder oxide of metal CS213319B2 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE7316039A SE397100B (sv)	1973-11-28	1973-11-28	Sett for reduktion av metalloxid enligt patentet 7306894-2

Publications (1)

Publication Number	Publication Date
CS213319B2 true CS213319B2 (en)	1982-04-09

Family

ID=20319218

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CS746247A CS213319B2 (en)	1973-11-28	1974-09-11	Method of direct reduction of the powder oxide of metal

Country Status (4)

Country	Link
BE (1)	BE819699A (fr)
CS (1)	CS213319B2 (fr)
SE (1)	SE397100B (fr)
ZA (1)	ZA745627B (fr)

1973
- 1973-11-28 SE SE7316039A patent/SE397100B/xx unknown
1974
- 1974-09-04 ZA ZA00745627A patent/ZA745627B/xx unknown
- 1974-09-09 BE BE148344A patent/BE819699A/fr not_active IP Right Cessation
- 1974-09-11 CS CS746247A patent/CS213319B2/cs unknown

Also Published As

Publication number	Publication date
BE819699A (fr)	1975-03-10
SE397100B (sv)	1977-10-17
ZA745627B (en)	1975-10-29
SE7316039L (fr)	1975-05-29

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