CA1178060A - Method for achieving low sulfur levels in the dri product from iron oxide reducing kilns - Google Patents
Method for achieving low sulfur levels in the dri product from iron oxide reducing kilnsInfo
- Publication number
- CA1178060A CA1178060A CA000384583A CA384583A CA1178060A CA 1178060 A CA1178060 A CA 1178060A CA 000384583 A CA000384583 A CA 000384583A CA 384583 A CA384583 A CA 384583A CA 1178060 A CA1178060 A CA 1178060A
- Authority
- CA
- Canada
- Prior art keywords
- kiln
- sulfur
- materials
- dri
- weight
- 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.)
- Expired
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 93
- 239000011593 sulfur Substances 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 45
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 26
- 235000013980 iron oxide Nutrition 0.000 claims abstract description 21
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims abstract description 13
- 239000000446 fuel Substances 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 16
- 235000019738 Limestone Nutrition 0.000 claims description 14
- 239000006028 limestone Substances 0.000 claims description 14
- 239000010459 dolomite Substances 0.000 claims description 13
- 229910000514 dolomite Inorganic materials 0.000 claims description 13
- 238000012216 screening Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000006872 improvement Effects 0.000 claims description 2
- 239000000356 contaminant Substances 0.000 claims 2
- 229960005349 sulfur Drugs 0.000 description 76
- 235000001508 sulfur Nutrition 0.000 description 76
- 239000000047 product Substances 0.000 description 27
- 239000003245 coal Substances 0.000 description 23
- 239000007789 gas Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 230000009467 reduction Effects 0.000 description 9
- 238000011109 contamination Methods 0.000 description 8
- 230000035611 feeding Effects 0.000 description 6
- 239000004519 grease Substances 0.000 description 6
- 239000008188 pellet Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- APVPOHHVBBYQAV-UHFFFAOYSA-N n-(4-aminophenyl)sulfonyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NS(=O)(=O)C1=CC=C(N)C=C1 APVPOHHVBBYQAV-UHFFFAOYSA-N 0.000 description 1
- -1 ore Chemical class 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229940095674 pellet product Drugs 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Iron (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US203,275 | 1980-11-03 | ||
| US06/203,275 US4378241A (en) | 1980-11-03 | 1980-11-03 | Method for achieving low sulfur levels in the DRI product from iron oxide reducing kilns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1178060A true CA1178060A (en) | 1984-11-20 |
Family
ID=22753262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000384583A Expired CA1178060A (en) | 1980-11-03 | 1981-08-25 | Method for achieving low sulfur levels in the dri product from iron oxide reducing kilns |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4378241A (forum.php) |
| JP (1) | JPS5792113A (forum.php) |
| KR (1) | KR890002217B1 (forum.php) |
| BR (1) | BR8107010A (forum.php) |
| CA (1) | CA1178060A (forum.php) |
| ES (1) | ES505644A0 (forum.php) |
| GR (1) | GR75085B (forum.php) |
| PH (1) | PH19099A (forum.php) |
| PT (1) | PT73415B (forum.php) |
| YU (1) | YU42730B (forum.php) |
| ZA (1) | ZA816385B (forum.php) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2690181A1 (en) * | 2006-07-26 | 2014-01-29 | Nu-Iron Technology, Inc | Method and system for producing metallic iron nuggets |
| US8097065B2 (en) * | 2006-10-04 | 2012-01-17 | Nu-Iron Technology, Llc | System and method for producing metallic iron |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3029141A (en) * | 1960-03-21 | 1962-04-10 | Canada Steel Co | Process for the reduction of iron oxide |
| DE1200330B (de) * | 1960-09-15 | 1965-09-09 | Metallgesellschaft Ag | Verfahren zur Reduktion stueckiger oxydischer Eisenerze zu einem schwammeisenartigen Produkt im Drehrohrofen |
| DE1583955A1 (de) * | 1968-02-09 | 1970-09-10 | Canada Steel Co | Verfahren zur Direktreduktion von eisenoxydhaltigen Materialien im Drehrohrofen |
-
1980
- 1980-11-03 US US06/203,275 patent/US4378241A/en not_active Expired - Lifetime
-
1981
- 1981-07-23 PT PT73415A patent/PT73415B/pt unknown
- 1981-08-25 CA CA000384583A patent/CA1178060A/en not_active Expired
- 1981-09-14 GR GR66045A patent/GR75085B/el unknown
- 1981-09-15 ZA ZA816385A patent/ZA816385B/xx unknown
- 1981-09-21 ES ES505644A patent/ES505644A0/es active Granted
- 1981-10-05 JP JP56158564A patent/JPS5792113A/ja active Pending
- 1981-10-09 YU YU2434/81A patent/YU42730B/xx unknown
- 1981-10-23 PH PH26386A patent/PH19099A/en unknown
- 1981-10-29 BR BR8107010A patent/BR8107010A/pt unknown
- 1981-11-02 KR KR1019810004196A patent/KR890002217B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| PT73415A (en) | 1981-08-01 |
| PT73415B (en) | 1982-10-08 |
| ZA816385B (en) | 1982-09-29 |
| US4378241A (en) | 1983-03-29 |
| YU42730B (en) | 1988-12-31 |
| ES8206635A1 (es) | 1982-08-16 |
| JPS5792113A (en) | 1982-06-08 |
| KR830007857A (ko) | 1983-11-07 |
| ES505644A0 (es) | 1982-08-16 |
| KR890002217B1 (ko) | 1989-06-23 |
| GR75085B (forum.php) | 1984-07-13 |
| PH19099A (en) | 1986-01-02 |
| BR8107010A (pt) | 1982-07-13 |
| YU243481A (en) | 1983-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |