GB2159138A - A process for the flotation of ores - Google Patents
A process for the flotation of ores Download PDFInfo
- Publication number
- GB2159138A GB2159138A GB08512463A GB8512463A GB2159138A GB 2159138 A GB2159138 A GB 2159138A GB 08512463 A GB08512463 A GB 08512463A GB 8512463 A GB8512463 A GB 8512463A GB 2159138 A GB2159138 A GB 2159138A
- Authority
- GB
- United Kingdom
- Prior art keywords
- process according
- flotation
- acid
- ore
- salt
- 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.)
- Granted
Links
- 238000005188 flotation Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims abstract description 11
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 10
- 239000010955 niobium Substances 0.000 claims abstract description 10
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 10
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 10
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 10
- 239000010937 tungsten Substances 0.000 claims abstract description 10
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 9
- 239000008396 flotation agent Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 229910021432 inorganic complex Inorganic materials 0.000 claims abstract description 7
- JTDPJYXDDYUJBS-UHFFFAOYSA-N quinoline-2-carbohydrazide Chemical compound C1=CC=CC2=NC(C(=O)NN)=CC=C21 JTDPJYXDDYUJBS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 7
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- 230000002378 acidificating effect Effects 0.000 claims abstract description 3
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 3
- 239000013505 freshwater Substances 0.000 claims abstract description 3
- -1 hexafluorosilicic acid Chemical compound 0.000 claims abstract description 3
- PGKQTZHDCHKDQK-UHFFFAOYSA-N 2-phenylethenylphosphonic acid Chemical group OP(O)(=O)C=CC1=CC=CC=C1 PGKQTZHDCHKDQK-UHFFFAOYSA-N 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- PTMHPRAIXMAOOB-UHFFFAOYSA-N phosphoramidic acid Chemical compound NP(O)(O)=O PTMHPRAIXMAOOB-UHFFFAOYSA-N 0.000 claims description 4
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical group O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 claims description 3
- 150000003007 phosphonic acid derivatives Chemical class 0.000 claims description 3
- SVMUEEINWGBIPD-UHFFFAOYSA-N dodecylphosphonic acid Chemical compound CCCCCCCCCCCCP(O)(O)=O SVMUEEINWGBIPD-UHFFFAOYSA-N 0.000 claims description 2
- BLSAPDZWVFWUTL-UHFFFAOYSA-N 2,5-dioxopyrrolidine-3-sulfonic acid Chemical class OS(=O)(=O)C1CC(=O)NC1=O BLSAPDZWVFWUTL-UHFFFAOYSA-N 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 description 10
- 239000012141 concentrate Substances 0.000 description 9
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 9
- 239000002245 particle Substances 0.000 description 5
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 5
- ZXOKVTWPEIAYAB-UHFFFAOYSA-N dioxido(oxo)tungsten Chemical compound [O-][W]([O-])=O ZXOKVTWPEIAYAB-UHFFFAOYSA-N 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910052845 zircon Inorganic materials 0.000 description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 3
- 229910004883 Na2SiF6 Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000011032 tourmaline Substances 0.000 description 2
- 229940070527 tourmaline Drugs 0.000 description 2
- 229910052613 tourmaline Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DFQDHMNSUGBBCW-UHFFFAOYSA-N 1,4-diamino-1,4-dioxobutane-2-sulfonic acid Chemical class NC(=O)CC(C(N)=O)S(O)(=O)=O DFQDHMNSUGBBCW-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- GATNOFPXSDHULC-UHFFFAOYSA-N ethylphosphonic acid Chemical compound CCP(O)(O)=O GATNOFPXSDHULC-UHFFFAOYSA-N 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
- B03B1/04—Conditioning for facilitating separation by altering physical properties of the matter to be treated by additives
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/014—Organic compounds containing phosphorus
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A process for the recovery of tungsten, tantalum, niobium and zirconium from ores containing them, comprises pre-treating the ore in a strongly or weakly acidic aqueous suspension with an inorganic complex acid or a salt thereof, whereafter the liquid is wholly or partly separated from the pre-treated ore, the pre-treated ore is adjusted with fresh water to the pulp density necessary for flotation and flotation is then carried out using a flotation agent. The complex acid or salt may be hexafluorosilicic acid, sodium hexafluorosilicate or sodium aluminium fluoride.
Description
SPECIFICATION
A process for the flotation of ores
The present invention is concerned with a process for the flotation of ores containing tungsten, tantalum, niobium and zirconium.
The metals tungsten, tantalum, niobium and zirconium are very widely distributed in the earth's crust but are only present therein in very small quantities.
These four metals are not only very valuable as such but also as components of various alloys.
They all occur in the form of various types of ores from which it has hitherto not been possible to extract them in very good yields.
Several efficient processes are known for the flotation of tin ores, with or without pretreatment prior to flotation. Hitherto, however, there have been no highly efficient flotation processes for obtaining tungsten, tantalum, niobium and zirconium from ores containing them and it is an object of the present invention to provide such a flotation process.
Thus, according to the present invention, there is provided a process for the recovery of tungsten, tantalum, niobium and zirconium from ores containing them, wherein an ore containing at least one metal selected from the group tungsten, tantalum, niobium and zirconium is pre-treated in a strongly or weakly acidic aqueous suspension with an inorganic complex acid or a salt thereof, whereafter the liquid is wholly or partly separated from the pre-treated ore, the pre-treated ore is adjusted with fresh water to the pulp density necessary for flotation and flotation is then carried out using a flotation agent.
The flotation agent used can be, for example, an arsenic acid derivative, an optionally substituted sulphosuccinamide or a phosphonic acid derivative of the general formula R-PO(OH)(OH2), or a salt thereof, in which R is an organic radical, such as an alkyl, alkylene, hydroxyalkyl, aryl, alkaryl or nuclear-substituted aryl radical, as well as an aminophosphonic acid or a salt thereof.
The amount of inorganic complex acid or salt thereof used for the pre-treatment can vary within wide limits, good results having been obtained with amounts of from 100 to 1500 g./tonne.
Similarly, the amount of flotation agent used can also vary within wide limits, good results having been obtained with amounts of from 200 to 1000 g./tonne.
The inorganic complex acid or salt thereof used according to the present invention is preferably hexafluoro-silicic acid, sodium hexafluorosilicate or sodium aluminium fluoride.
When the flotation agent used according to the present invention is a phosphonic acid or aminophosphonic acid derivative, this can be, for example sodium 2-ethylhexylimino-N,N-bis-(methylene-phosphonate), styrene-phosphonic acid, tolyl-phosphonic acid, ethyl-phosphonic acid or dodecyl-phosphonic acid, especially good results having been obtained with styrene-phosphonic acid, particularly in the case of fine grain flotation. The corresponding derivatives of arsenic acid can also be used.
The pre-treatment is preferably carried out at a pH of from 3 and 5 and the flotation is preferably carried out at pH of from 5 to 6.5.
The ore used as starting material is preferably ground to the state of fineness necessary for the subsequent flotation before carrying out the pre-treatment, the, preferred particle size of the ore being 150 microns or less.
The pre-treatment can be carried out, for example, in a stirrer vessel or in a mill used for grinding the ore to the particle size desired for the subsequent flotation.
In order to carry out the pre-treatment with the desired degree of acidity, the pH value of the aqueous medium used can, if necessary, be adjusted with reagents which appropriately regulate the pH value.
It is important partly or wholly to remove the liquid from the pre-treated ore since the presence of unduly high amounts of the pre-treatment agent could have an adverse effect on the flotat- ion. This partial or complete removal of liquid can be carried out, for example, by filtering or centrifuging. In addition, this partial or complete removal of the liquid also contributes to the removal of dirt and sludge possibly present in the ore used, thereby saving additional working steps and further improving the flotation process.
The following Examples are given for the purpose of illustrating the present invention:
Example 1 Wolframite ore samples with an average tungsten trioxide content of 2.35% by weight were treated with 2.0 litres of sodium hexafluorosilicate solutions containing differing amounts of the salt. The temperature of each solution was from 15 to 20"C. and the pH value was 4.0. Thereafter, the solid material was separated from the major part of the liquid and mixed with water. Subsequently, flotation of the wolframite ore was carried out at pH 5.5, using styrene-phosphonic acid as collector.
For comparison purposes, flotation experiments were carried out without pre-treatment and again using styrene-phosphonic acid as collector.
The results obtained are set out in the following Table.
Pretreatment of the ore collector addition results
with Na2SiF6 in gitonne gitonne
W03 in W03 W03 in
concentrate recovery tailings
% % %
- 400 19.09 26.1 1.84
- 600 32.64 40.2 1.40
800 300 49.20 82.7 0.42
800 400 32.60 95.0 0.13
1200 600 52.67 87.0 0.32
1400 500 43.97 88.3 0.20
Example 2
Tantalite ore with a tantalum pentoxide content of 0.07 to 0.1 % by weight, containing microlite, tantalite, quartz, mica, kaolin and tourmaline, was ground in a laboratory mill to a particle size of 0.1 mm. The flotation tests were carried out with 30% by weight solids in the pulp after pre-treating with a sodium hexafluorosilicate solution at a pH of 4 - 5, the ore having been previously deslimed to remove particles with a size of 10 Am and less.As reagents for the flotation, there were used styrene-phosphonic acid as collector and octanediol as frother. The pH was 6 - 7. The results obtained are set out in the following
Table:
Collector Ta2 05 in Ta205 - recovery
addition concentrate
gltonne %
200 0.32 29.8
400 0.35 47.2
600 0.35 57.3
800 0.62 77.2
With additional cleaning operations, there can be produced commercial concentrates.
Example 3
Tantalite - cassiterite ore, containing quartz, feldspar, tourmaline and mica, was ground in a laboratory mill to a particle size of 0.063 mm. The ore pulp was then deslimed to remove particies with a size of 10 m and less. After carrying out a pre-treatment as in Example 2, flotation tests were carried out at pH 6 with 34 % by weight solids in the pulp. As reagents, there were added styrene-phosphonic acid (250 g/ tonne) as collector and octanediol (200 g/tonne) as frother. In the rougher flotation with 10 minutes flotation time, in the case of a concentrate with 0.32 % by weight Ta2O5 and 2.08 % by weight Sn, there was obtained a Ta2O5 recovery of 52.3 % by weight and Sn recovery of 75.4 % by weight. The concentration in the rougher flotation stag e was 6.
The results obtained are set out in the following Table:
weight starting material recovery Ta2O2 Sn Ta2O5 Sn
% % % % %
slimes 1.3 - 0.11 - 0.5
concentrate 9.4 0.23 2.08 52.3 75.4
tailings 89.3 0.022 0.07 47.7 24.1
feed 100.0 0.042 0.26 100.0 100.0
With additional cleaning operations, there can be produced commercial concentrates.
Example 4
For flotation of zircon from beach sand material, containing additional quartz and magnetite, styrenephosphonic acid was used as collector after a pre-treatment with sodium hexafluoro- silicate solution at pH 3 - 5. The sand was previously classified at 0.1 mm and the fines (- 0.1mum) used as feed for flotation tests. The pulp contained 30% by weight solids, the pH of the test being in the range of 5 to 7. The magnetite portion was first separated by magnetic separation. In the rougher flotation, there was obtained a zircon concentrate with a concentration of 5 - 10% and a zircon recovery of 70% by weight. This concentrate can be further enriched by additional cleaning flotation steps.
Example 5 Wolframite ore samples with an average tungsten trioxide content of 0.245% by weight were treated with 2.0 litres of sodium hexafluorosilicate solution. The temperature was 18"C and the pH value was 4.0.
Thereafter, the solid material was separated from the major part of the liquid and mixed with water.
Subse- quently, flotation of the wolframite ore was carried out at pH 5, using sodium 2-ethylhexylimino
N,N-bis (methylene-phosphonate) as collector.
For comparison purposes, a flotation experiment was carried out without pre-treatment and again using sodium 2-ethylhexylimino- N,N-bis-(methylene-phosphonate) as collector.
The results obtained are set out in the following Table.
pretreatment of collector
the ore with addition results
Na2SiF6 in 91tone WO3 in WO2 WO3 in 91tone concentrate recovery tailings
0/0 010 010 400 2.71 65.4 0.09
800 400 4.10 77.1 0.06
Claims (12)
1. A process for the recovery of tungsten, tantalum, niobium and zirconium from ores containing them, wherein an ore containing at least one metal selected from the group tungsten, niobium, tantalum and zirconium is pre-treated in a strongly or weakly acidic aqueous suspension with an inorganic complex acid or a salt thereof, whereafter the liquid is wholly or partly separated from the pre-treated ore, the pre-treated ore is adjusted with fresh water to the pulp density necessary for flotation and flotation is then carried out using a flotation agent.
2. A process according to claim 1, wherein the pretreatment is carried out at a pH of from 3 to 5.
3. A process according to claim 1 or 2, wherein the flotation is carried out at a pH of from 5 to 6.5.
4. A process according to any of the preceding claims, wherein the inorganic complex acid or salt thereof is used in an amount of from 100 to 1500 g./tonne.
5. A process according to any of the preceding claims, wherein the flotation agent is used in an amount of from 200 to 1000 g./tonne.
6. A process according to any of the preceding claims, wherein the inorganic complex acid or salt thereof is hexafluorosilicic acid, sodium hexafluorosilicate or sodium aluminium fluoride.
7. A process according to any of the preceding claims, wherein the flotation agent is an arsenic acid derivative, an optionally substituted sulphosuccinimide, a phosphonic acid derivative of the general formula R-PO(OH)2, in which R is an organic radical, or a salt thereof or an amino-phosphonic acid or a salt thereof.
8. A process according to claim 7, wherein the phosphonic acid derivative is styrene-phosphonic acid, tolyl-phosphonic acid, ethyl-phpsphonic acid or dodecyl-phosphonic acid.
9. A process according to claim 7, wherein the aminophosphonic acid derivative is sodium 2-ethylhexylimino-N,N-bis(methylene- phosphonate).
10. A process according to any of the preceding claims, wherein the ore is first ground to a fineness of 150 microns or less.
11. A process according to claim 1 for the recovery of tungsten, tantalum, niobium, or zirconium from ores containing them, substantially as hereinbefore described and exemplified.
12. Tungsten, tantalum, niobium and zirconium, whenever obtained by the process according to any of claim 1 to 11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB848413047A GB8413047D0 (en) | 1984-05-22 | 1984-05-22 | Flotation of ores |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8512463D0 GB8512463D0 (en) | 1985-06-19 |
| GB2159138A true GB2159138A (en) | 1985-11-27 |
| GB2159138B GB2159138B (en) | 1988-08-10 |
Family
ID=10561322
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB848413047A Pending GB8413047D0 (en) | 1984-05-22 | 1984-05-22 | Flotation of ores |
| GB08512463A Expired GB2159138B (en) | 1984-05-22 | 1985-05-16 | A process for the flotation of ores |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB848413047A Pending GB8413047D0 (en) | 1984-05-22 | 1984-05-22 | Flotation of ores |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN85104474A (en) |
| AU (1) | AU578471B2 (en) |
| CA (1) | CA1274024A (en) |
| DD (1) | DD237482A1 (en) |
| GB (2) | GB8413047D0 (en) |
| IN (1) | IN164826B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991012080A1 (en) * | 1990-02-07 | 1991-08-22 | Commonwealth Scientific And Industrial Research Organisation | Processing of mineral deposits |
| AU646659B2 (en) * | 1990-02-07 | 1994-03-03 | Commonwealth Scientific And Industrial Research Organisation | Processing of mineral deposits |
| AU668807B2 (en) * | 1990-02-07 | 1996-05-16 | Commonwealth Scientific And Industrial Research Organisation | Processing of mineral deposits |
| CN102151616A (en) * | 2011-01-24 | 2011-08-17 | 华东理工大学 | Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation |
| CN101658816B (en) * | 2009-09-16 | 2012-08-22 | 中国瑞林工程技术有限公司 | Mineral separating process for electively recovering tantalum-niobium ores |
| CN109225646A (en) * | 2018-09-29 | 2019-01-18 | 广东省资源综合利用研究所 | Flotation collector and its application of tantalum niobium are recycled from granite peamatite tantalum niobium concentrate |
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|---|---|---|---|---|
| CN102172559A (en) * | 2010-12-29 | 2011-09-07 | 昆明冶金研究院 | Tungsten and tin recovery concentration method combining centrifugal concentration with floatation |
| CN103567077A (en) * | 2013-11-08 | 2014-02-12 | 昆明川金诺化工股份有限公司 | Method for concentrating sulfur with fluorosilicic acid as activator of pyrite |
| CN105170338B (en) * | 2015-08-28 | 2017-12-08 | 河南天鸿选矿科技有限公司 | A kind of non-sulfide ore mineral floating collecting agent and its preparation method and application |
| CN106269276A (en) * | 2016-08-29 | 2017-01-04 | 北京矿冶研究总院 | Beneficiation method for comprehensively recycling low-grade micro-fine particle tantalum-niobium resources and flotation reagent |
| CN115155823B (en) * | 2022-07-27 | 2023-08-22 | 湖南柿竹园有色金属有限责任公司 | Method for normal-temperature floatation enrichment of high-calcium tungsten ore |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343957A (en) * | 1970-05-08 | 1974-01-16 | Pierrefitte Auby Sa | Flotation of niobium oxide ores |
-
1984
- 1984-05-22 GB GB848413047A patent/GB8413047D0/en active Pending
-
1985
- 1985-05-16 GB GB08512463A patent/GB2159138B/en not_active Expired
- 1985-05-21 CA CA000481977A patent/CA1274024A/en not_active Expired - Fee Related
- 1985-05-21 DD DD85276552A patent/DD237482A1/en not_active IP Right Cessation
- 1985-05-22 IN IN378/MAS/85A patent/IN164826B/en unknown
- 1985-05-22 AU AU42764/85A patent/AU578471B2/en not_active Ceased
- 1985-06-10 CN CN198585104474A patent/CN85104474A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1343957A (en) * | 1970-05-08 | 1974-01-16 | Pierrefitte Auby Sa | Flotation of niobium oxide ores |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991012080A1 (en) * | 1990-02-07 | 1991-08-22 | Commonwealth Scientific And Industrial Research Organisation | Processing of mineral deposits |
| AU646659B2 (en) * | 1990-02-07 | 1994-03-03 | Commonwealth Scientific And Industrial Research Organisation | Processing of mineral deposits |
| AU668807B2 (en) * | 1990-02-07 | 1996-05-16 | Commonwealth Scientific And Industrial Research Organisation | Processing of mineral deposits |
| CN101658816B (en) * | 2009-09-16 | 2012-08-22 | 中国瑞林工程技术有限公司 | Mineral separating process for electively recovering tantalum-niobium ores |
| CN102151616A (en) * | 2011-01-24 | 2011-08-17 | 华东理工大学 | Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation |
| CN102151616B (en) * | 2011-01-24 | 2014-05-07 | 华东理工大学 | Method for separating lepidolite ore concentrate from tantalum-niobium tailing through flotation |
| CN109225646A (en) * | 2018-09-29 | 2019-01-18 | 广东省资源综合利用研究所 | Flotation collector and its application of tantalum niobium are recycled from granite peamatite tantalum niobium concentrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85104474A (en) | 1986-12-10 |
| CA1274024A (en) | 1990-09-11 |
| GB8413047D0 (en) | 1984-06-27 |
| DD237482A1 (en) | 1986-07-16 |
| GB8512463D0 (en) | 1985-06-19 |
| GB2159138B (en) | 1988-08-10 |
| AU578471B2 (en) | 1988-10-27 |
| IN164826B (en) | 1989-06-10 |
| AU4276485A (en) | 1985-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950516 |