US485841A - Thomas a - Google Patents
Thomas a Download PDFInfo
- Publication number
- US485841A US485841A US485841DA US485841A US 485841 A US485841 A US 485841A US 485841D A US485841D A US 485841DA US 485841 A US485841 A US 485841A
- Authority
- US
- United States
- Prior art keywords
- magnetic
- pyrites
- iron
- ore
- particles
- 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 description 60
- 229910052742 iron Inorganic materials 0.000 description 32
- 239000002245 particle Substances 0.000 description 16
- JEIPFZHSYJVQDO-UHFFFAOYSA-N Iron(III) oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 8
- 239000006148 magnetic separator Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000005864 Sulphur Substances 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 210000000709 Aorta Anatomy 0.000 description 2
- 241000282941 Rangifer tarandus Species 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001590 oxidative Effects 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
- B03C1/14—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with non-movable magnets
Definitions
- the object of this invention is to eliminate, practically, the sulphur from concentrated iron ores where the original crude ore contains magnetic pyrites.
- the crude ore is first crushedto a suflicient degree of fineness tnf-remthe magnetic iron ore from the gangue and from the magnetic pyrites.
- the crushed ore is'then passed through a magnetic separator which is adequately powerful to attract an the magnetic pyrites as well as the magnetic oxide of iron, thus eliminating the major portion of the non-magnetic gengue and leaving a concentrate composed of magnetic iron ore and magnetic pyrites with very little gangne.
- This concentrate isthen passed through a second magnetic separator, which is graduated to such a magnetic strength that, only the free particles of magnetic iron ore;
- differential separation is tree 485,841, dated November 8, 1892.
- these tsiiings may then he roasted, so as to render the pyrites nonmagnetic, snd the magnetic be separated from the non-magnetic pyrites iron ore can then 5o by passing the material through a.
- magnetic separatogthns may he recrushed 0nd magnetic separation free eachironjore to a smaller size, so as to particle, when thedifference in themag netisni.
- my invention is 1. Thorn-cease of separating magnetic oxide of iron from megnetic pyrites where both occur inthe-same-.cre-,Vconsisting in subjecting specific magnetic capacityofi' the oxide of magnetic action 0! eliminating the whole of the pyritcs, or the residue or railings of the sec iron and the pyrites, the cxide-ef-iron pentithe magneticupon, whiie substsntialiy nssei'iorth.
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
UNITED THOMAS EDISON, OF LLEWELLYNPARK, NE JERSEY.
METHODOF MAGNETiCALLY sEPARATme ones;
- ermine-Arlen forming part of L tters Patent no.
1892. Serial Ho. aortas; (su emen n Application illed July 20,
To all whom it 'may concern: Be it known that I, THQMAsA. EDISON, a
I citizen of the United Statesfl'es'iding at Llew- .of New Jersey, have ellyn Park, in the county of Essex and State invented s. certain new and useful Improvement in Treating Iron Ores, (Case No. 957,) of which the following is a specification.
The object of this invention is to eliminate, practically, the sulphur from concentrated iron ores where the original crude ore contains magnetic pyrites.
the results obtained the interior of the lumps Heretofore the crude ore in the form of large pieces and containinginn-go quantity of gangne has been roasted to acccmplishthe elimination of the sulphur; hut. this roasting,
process is an expensive one, and in additionare fer from perfect, since the pyrites on are protectedjfrom the oxidizing influence oi" the air.
In carrying out my invention the crude ore is first crushedto a suflicient degree of fineness tnf-remthe magnetic iron ore from the gangue and from the magnetic pyrites. The crushed ore is'then passed through a magnetic separator which is suficiently powerful to attract an the magnetic pyrites as well as the magnetic oxide of iron, thus eliminating the major portion of the non-magnetic gengue and leaving a concentrate composed of magnetic iron ore and magnetic pyrites with very little gangne. This concentrate isthen passed through a second magnetic separator, which is graduated to such a magnetic strength that, only the free particles of magnetic iron ore;
will be drawn away; leaving the i'nagnetio pyrites and such particles 0! iron ore as have pieces of non magnetic gangue- -snch as quartzclinging, to..them,. I have'found that there is a sulfici'ent difference in the specific magnetic capacity ofi the oxide of iron an the pyritesto allow of this differentiation. The iron ore obtained in this way as the product oil?l this fronieulp If the amount of iron in the .tailings'whichresultfrom the. second separathe crushed material to such strength that, due to the dill-Terence in cl-9s will be acted V pyrites particles will not be wise npon,
differential separation is tree 485,841, dated November 8, 1892.
tion is considerable, these tsiiings may then he roasted, so as to render the pyrites nonmagnetic, snd the magnetic be separated from the non-magnetic pyrites iron ore can then 5o by passing the material through a. magnetic separatogthns may he recrushed 0nd magnetic separation free eachironjore to a smaller size, so as to particle, when thedifference in themag netisni.
of the pyrites and magnetic oxide can again be taken eidventege of to separate the ironore particles from the pyrites particles by running the material through a magnetic separator oi the proper strength to accomplish thedifierenti'si separation, thus eliminating the whole of the-magnetic pyrites without the necessity of roasting,
'iwhat lelaimns my invention is 1. Thorn-cease of separating magnetic oxide of iron from megnetic pyrites where both occur inthe-same-.cre-,Vconsisting in subjecting specific magnetic capacityofi' the oxide of magnetic action 0! eliminating the whole of the pyritcs, or the residue or railings of the sec iron and the pyrites, the cxide-ef-iron pentithe magneticupon, whiie substsntialiy nssei'iorth. I
' The processof treating ores containing then passco'ne'isting in first crushing the cre,
Y in]; it, through a rnagnetic separator of snfli cien tst 'ren th'to separate the entire magnetic of the oxide'of. iron and the pyrites, the oxideof-iron particles will be separated from the pyrites particles, substsntislly as set forth.
d This specification signed andwitnessed this magnetic oxide of ironand magnet c pyrites, i
rnst'erisl from the nonmagnetic gangue, and then psssingithc concentrated ore through a magnetic separator of such strength that, due to the difference in specific magnetic capacity
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US485841A true US485841A (en) | 1892-11-08 |
Family
ID=2554690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US485841D Expired - Lifetime US485841A (en) | Thomas a |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US485841A (en) |
-
0
- US US485841D patent/US485841A/en not_active Expired - Lifetime
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