GB1046461A - Method for treatment of ores by magnetic sedimentation - Google Patents
Method for treatment of ores by magnetic sedimentationInfo
- Publication number
- GB1046461A GB1046461A GB13402/63A GB1340263A GB1046461A GB 1046461 A GB1046461 A GB 1046461A GB 13402/63 A GB13402/63 A GB 13402/63A GB 1340263 A GB1340263 A GB 1340263A GB 1046461 A GB1046461 A GB 1046461A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fe2o3
- ore
- gas
- action
- constituent
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 238000004062 sedimentation Methods 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 9
- 239000007789 gas Substances 0.000 abstract 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 4
- 239000000470 constituent Substances 0.000 abstract 3
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000571 coke Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000003345 natural gas Substances 0.000 abstract 2
- 238000004131 Bayer process Methods 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000010908 decantation Methods 0.000 abstract 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 238000007885 magnetic separation Methods 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000011369 resultant mixture Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 229910001388 sodium aluminate Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
-
- 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
-
- 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
- B03C1/005—Pretreatment specially adapted for magnetic separation
- B03C1/015—Pretreatment specially adapted for magnetic separation by chemical treatment imparting magnetic properties to the material to be separated, e.g. roasting, reduction, oxidation
-
- 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
- C22B1/02—Roasting processes
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A process for treating an ore containing a constituent capable of acquiring magnetic susceptibility as a result of reduction or oxidation comprises subjecting the ore to the action of a reducing gas for 10 to 30 minutes at 300-500 DEG C. and, subsequently and optionally, or alternatively, according to the known chemical properties of the constituent, to the action of an oxidizing gas for 5 to 20 minutes at 200-400 DEG C., whereby at least a part of said constituent is converted into a magnetically susceptible oxide, treating the material obtained with NaOH solution at about 130 DEG C. and submitting the resultant mixture to the action of a magnetic field to separate the magnetically susceptible oxide contained therein. The ore may contain Fe and/or Al, Mn, Ni, Co, Cu, Mg or Zn or it may consist of metallic residues e.g. blast furnace dusts, roast pyrites, slurries or muds derived from the Bayer process, or metallurgical coke. The reducing gas may be H2, CO, natural gas, or gases from gas generators or from blast furnaces. Air may be used for oxidation. Reduction and/or oxidation, which may only be partial, may be carried out in an inclined tunnel or rotary furnace. In an example, a -Fe2O3 in red muds was reduced by means of coke oven gas and oxidized by air to g -Fe2O3. The treated red muds were agitated in NaOH solution and subjected to a magnetic field of 1000 gauss generated by an electro-magnet under the container. The oxides were removed after decantation of the sodium aluminate liquors, washed, and dried. In another example, ferrous oxide in tungsten ore is oxidized to g -Fe2O3. The magnetic separation may be carried out using an endless belt, of a material resistant to hot conc. NaOH solution, having a plurality of electromagnets located on the upper strand of the belt, or, alternatively, by permanent magnets arranged outside or embedded in the belt. a -Fe2O3 in ores may also be converted into magnetite.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR893251A FR1330166A (en) | 1962-04-04 | 1962-04-04 | Improvements in the treatment of ores by magnetic sedimentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1046461A true GB1046461A (en) | 1966-10-26 |
Family
ID=8776028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13402/63A Expired GB1046461A (en) | 1962-04-04 | 1963-04-04 | Method for treatment of ores by magnetic sedimentation |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES286703A1 (en) |
| FR (1) | FR1330166A (en) |
| GB (1) | GB1046461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307628A (en) * | 2014-09-19 | 2015-01-28 | 河南金利金铅有限公司 | Method for comprehensive utilization of fuming furnace slag from lead and zinc smelting |
-
1962
- 1962-04-04 FR FR893251A patent/FR1330166A/en not_active Expired
-
1963
- 1963-04-03 ES ES286703A patent/ES286703A1/en not_active Expired
- 1963-04-04 GB GB13402/63A patent/GB1046461A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307628A (en) * | 2014-09-19 | 2015-01-28 | 河南金利金铅有限公司 | Method for comprehensive utilization of fuming furnace slag from lead and zinc smelting |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1330166A (en) | 1963-06-21 |
| ES286703A1 (en) | 1963-07-16 |
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