US800698A - Preparing fine particles of oxid of iron for use in furnaces. - Google Patents
Preparing fine particles of oxid of iron for use in furnaces. Download PDFInfo
- Publication number
- US800698A US800698A US24341705A US1905243417A US800698A US 800698 A US800698 A US 800698A US 24341705 A US24341705 A US 24341705A US 1905243417 A US1905243417 A US 1905243417A US 800698 A US800698 A US 800698A
- Authority
- US
- United States
- Prior art keywords
- iron
- oxid
- furnaces
- fine particles
- sulfate
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 32
- 229910052742 iron Inorganic materials 0.000 title description 16
- 239000010419 fine particle Substances 0.000 title description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical compound [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 238000013019 agitation Methods 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 206010022000 influenza Diseases 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
Definitions
- the object of my invention is to prepare for use in blast or open-hearth furnaces relatively fine particles of oxid of iron, such as the red hematite ores, and the cinder resulting from the desulfurization of iron pyrites in the manufacture of sulfuric acid.
- These relatively fine particles of oxid of iron are not available for use in blast-furnaces, first, because of their tendency to pack and render the furnace-charge too dense for the passage of the blast therethrough, and, secondly, because when a high-pressure blast is used they are liable to be carried off thereby and deposited in the flues of the furnace.
- the oxid is intended for use in an open-hearth furnace, whether acid or basic, it is important that it should not be combined with any material which would retard or otherwise interfere with the intended action of said furnace.
- I have found that such finely-divided iron oxids can be rendered available either for use in blastfurnaces or open-hearth furnaces by combining them with sulfate of iron and subjecting the mixture to a temperature high enough to insure the driving 01f of the sulfur in the sulfate or which may be combined with the oxid, the result being an agglomeration of the iron-oxid particles and the sulfate of iron and the forming of hard lumps of such size that the resultant product resembles gravel, in which form it is readily available for use in the furnace.
- the temperature may be as low as twelve hundred (1,200”) degrees or thirteen hundred (1,300”) degrees Fahrenheit or as much higher as desired below the melting-point of the oxid, and by preference the mixture during the time it is being heated is subjected to agitation, the most convenient method of accomplishing such agitation being to feed the mixture through a rotating cylindrical kiln of suitable length whose axis is slightly inclined in respect to the horizontal, the kiln being heated either externally or internally,
- the fine particles of oxid may be mixed with the sulfate of iron before being introduced into the kiln, and for this purpose I prefer to use the sulfate in plastic form, or
- said particles may simply be moistened with sulfuric acid, which under the heat of the kiln will byits action upon the oxid during the earlier portion of the passage of the latter through the kiln produce a sulfate of iron, which will act as a binder for the oxid during the remaining portion of its passage.
- the resultant product will not contain any foreign matter to interfere with the proper operation of the blast-furnace or other furnace in which the oxid is subsequently used, and by the use of a sufficiently-high temperature the product may be made so hard as to effectually withstand the rough handling to which it is likely to be subjected.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Compounds Of Iron (AREA)
Description
UNITED STATES PATENT OFFICE.
UTLEY VEDGE, OF ARDMORE, PENNSYLVANIA.
PREPARING FINE PARTICLES OF OXID OF IRON FOR USE IN FURNACES.
Specification of Letters Patent.
Patented Oct. 3, 1905.
Application filed January 30, 1905. Serial No. 243,417.
f 0 (Ll/T whmn it may concern.-
Be it known that I, UTLEY WEDGE, a citi zen of the United States, residing in Ardmore, Pennsylvania, have invented certain Improvements in Preparing Fine Particles of Oxid of Iron for Use in Furnaces, of which the following is a specification.
The object of my invention is to prepare for use in blast or open-hearth furnaces relatively fine particles of oxid of iron, such as the red hematite ores, and the cinder resulting from the desulfurization of iron pyrites in the manufacture of sulfuric acid. These relatively fine particles of oxid of iron are not available for use in blast-furnaces, first, because of their tendency to pack and render the furnace-charge too dense for the passage of the blast therethrough, and, secondly, because when a high-pressure blast is used they are liable to be carried off thereby and deposited in the flues of the furnace. the oxid is intended for use in an open-hearth furnace, whether acid or basic, it is important that it should not be combined with any material which would retard or otherwise interfere with the intended action of said furnace. I have found that such finely-divided iron oxids can be rendered available either for use in blastfurnaces or open-hearth furnaces by combining them with sulfate of iron and subjecting the mixture to a temperature high enough to insure the driving 01f of the sulfur in the sulfate or which may be combined with the oxid, the result being an agglomeration of the iron-oxid particles and the sulfate of iron and the forming of hard lumps of such size that the resultant product resembles gravel, in which form it is readily available for use in the furnace.
The temperature may be as low as twelve hundred (1,200") degrees or thirteen hundred (1,300") degrees Fahrenheit or as much higher as desired below the melting-point of the oxid, and by preference the mixture during the time it is being heated is subjected to agitation, the most convenient method of accomplishing such agitation being to feed the mixture through a rotating cylindrical kiln of suitable length whose axis is slightly inclined in respect to the horizontal, the kiln being heated either externally or internally,
or both.
The fine particles of oxid may be mixed with the sulfate of iron before being introduced into the kiln, and for this purpose I prefer to use the sulfate in plastic form, or
When
said particles may simply be moistened with sulfuric acid, which under the heat of the kiln will byits action upon the oxid during the earlier portion of the passage of the latter through the kiln produce a sulfate of iron, which will act as a binder for the oxid during the remaining portion of its passage.
By reason of the driving ofi of the sulfur compounds from the mixture the resultant product will not contain any foreign matter to interfere with the proper operation of the blast-furnace or other furnace in which the oxid is subsequently used, and by the use of a sufficiently-high temperature the product may be made so hard as to effectually withstand the rough handling to which it is likely to be subjected.
Having thus described my invention, I claim and desire to secure by Letters Patent 1. The mode herein described of agglomerating fine particles of iron oxid for use in furnaces, said mode consisting in combining said particles with sulfate of iron and sub- 3. The mode herein described of agglorncrating fine particles of iron oxid for use in furnaces, said mode consisting in combining said particles with sulfate of iron and subjecting the mixture to agitation and to heat sufficient to drive off the sulfur, substantially as specified.
4. The mode herein described of agglomcrating fine particles of iron oxid for use in furnaces, said mode consisting in combining said particles with sulfate of iron in plastic form and subjecting the mixture to agitation and to heat sufiicient to drive off the sulfur, substantially as specified.
5. The mode herein described of preparing fine particles of iron oxid for use in furnaces, said mode consisting in moistening said particles with sulfuric acid, subjecting them to the action of said acid and of heat until sulfate of iron is formed, and then subjecting them to heat sufficient to drive off the sulfur, substantially as specified.
6. The mode herein described of preparing line particles of iron oxid for use in furnaces, said mode consisting in inoistening SELICl par ticles with sulfuric acid, Sub ecting them to In testimony whereof I have signed my name to this specification 1n the presence of IO tWo subscribing WItDCSSGS fate of iron is formed, and then subjecting thecompound to agitation and to heat suflicient to drive off the sulfur, substantially as specified.
Witnesses:
CHARLES C NoRRIs, Jr, HARRY SMITH.
l l the action of said acid and of heat until sull UTLEY WEDGE
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24341705A US800698A (en) | 1905-01-30 | 1905-01-30 | Preparing fine particles of oxid of iron for use in furnaces. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24341705A US800698A (en) | 1905-01-30 | 1905-01-30 | Preparing fine particles of oxid of iron for use in furnaces. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US800698A true US800698A (en) | 1905-10-03 |
Family
ID=2869184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US24341705A Expired - Lifetime US800698A (en) | 1905-01-30 | 1905-01-30 | Preparing fine particles of oxid of iron for use in furnaces. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US800698A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2711952A (en) * | 1951-07-30 | 1955-06-28 | Illinois Clay Products Co | Production of iron briquettes by reduction of iron oxide |
| US2711951A (en) * | 1951-08-02 | 1955-06-28 | Illinois Clay Products Co | Process for producing a briquette of iron ore |
| US2806775A (en) * | 1954-02-01 | 1957-09-17 | Illinois Clay Products Co | Charging ore and the like and its preparation |
-
1905
- 1905-01-30 US US24341705A patent/US800698A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2711952A (en) * | 1951-07-30 | 1955-06-28 | Illinois Clay Products Co | Production of iron briquettes by reduction of iron oxide |
| US2711951A (en) * | 1951-08-02 | 1955-06-28 | Illinois Clay Products Co | Process for producing a briquette of iron ore |
| US2806775A (en) * | 1954-02-01 | 1957-09-17 | Illinois Clay Products Co | Charging ore and the like and its preparation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1490012A (en) | Smelting ores | |
| US800698A (en) | Preparing fine particles of oxid of iron for use in furnaces. | |
| US3547623A (en) | Method of recovering iron oxide from fume containing zinc and/or lead and sulfur and iron oxide particles | |
| US1065890A (en) | Process of producing metals. | |
| US804692A (en) | Preparing iron oxid for use in blast-furnaces. | |
| US2823109A (en) | Process for manufacturing high grade pig iron | |
| US890233A (en) | Method of dephosphorizing and reducing iron ore. | |
| US986271A (en) | Process of refining and agglomerating ores and the like. | |
| US3705795A (en) | Process of directly reducing materials containing iron oxide in a rotary kiln | |
| US995542A (en) | Method of treating finely-divided substances containing iron compounds. | |
| US1951935A (en) | Process for sintering fine ores or the like | |
| US1038370A (en) | Process for briqueting flue-dust and the article of manufacture produced thereby. | |
| US757531A (en) | Preparing iron pyrites for desulfurization. | |
| US889563A (en) | Preparing fine particles of iron oxid for use in blast-furnaces. | |
| US287117A (en) | Process of preparing powdered or granulated ores for furnaces | |
| US978971A (en) | Process of treating fine ores. | |
| US794673A (en) | Method or process of purifying and nodulizing metalliferous materials. | |
| US899219A (en) | Method of desulfurizing ores. | |
| US1114030A (en) | Process of agglomerating fine ores. | |
| US723105A (en) | Process of reclaiming flue-dust. | |
| US788813A (en) | Process of treating fine ores. | |
| US708331A (en) | Process of treating fine iron ores for blast-furnaces. | |
| US516710A (en) | Agglomerated iron ore and process of making same | |
| US1236447A (en) | Composition of matter for adapting carbon residues from the distillation of petroleum for use in smelting-furnaces. | |
| GB190509007A (en) | Improvements in, and relating to, the Treatment of Ores. |