CN102302982A - Ore selecting method for recovering scheelite from gneiss-type ore - Google Patents
Ore selecting method for recovering scheelite from gneiss-type ore Download PDFInfo
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- CN102302982A CN102302982A CN201110204534A CN201110204534A CN102302982A CN 102302982 A CN102302982 A CN 102302982A CN 201110204534 A CN201110204534 A CN 201110204534A CN 201110204534 A CN201110204534 A CN 201110204534A CN 102302982 A CN102302982 A CN 102302982A
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- Prior art keywords
- ore
- gneiss
- scheelite
- pulp
- flotation
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005188 flotation Methods 0.000 claims abstract description 30
- 239000012141 concentrate Substances 0.000 claims abstract description 15
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 18
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- ZQCUDFIHJAXGTP-KVVVOXFISA-N (z)-octadec-9-enoic acid;sodium Chemical class [Na].CCCCCCCC\C=C/CCCCCCCC(O)=O ZQCUDFIHJAXGTP-KVVVOXFISA-N 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229940006295 sulfonated oleic acid Drugs 0.000 claims description 4
- -1 sulfonated oleic acid acid amides Chemical class 0.000 claims description 4
- 241001274660 Modulus Species 0.000 claims description 2
- 229940049964 oleate Drugs 0.000 claims description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 13
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 4
- 230000002000 scavenging effect Effects 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 9
- 229910052721 tungsten Inorganic materials 0.000 description 8
- 239000010937 tungsten Substances 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 5
- 229910052613 tourmaline Inorganic materials 0.000 description 3
- 229940070527 tourmaline Drugs 0.000 description 3
- 239000011032 tourmaline Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Abstract
The invention provides an ore selecting method for recovering a scheelite from a gneiss-type ore. the flotation process is used, the method comprises the steps of ore grinding, roughing separation, fine separation and scavenging and is characterized in comprising the following specific steps of: regulating a PH (Potential of Hydrogen) value of ore pulp to 7-9 by using a regulation agent in floatation gneiss-type ore raw pulp of which the mass concentration is 25-60 percent when the roughing separation is performed, and then adding polyacrylamide according to 0.01-0.05 percent of an ore solid mass in the ore pulp and adding sulfoleate according to 2-10 percent of the solid mass in the ore pulp; and obtaining an ore concentrate of the scheelite after performing the fine separation and the scavenging. According to the method provided by the invention, only the polyacrylamide and the sulfoleate are added in the traditional flotation pulp-mixing process without changing the traditional flotation process flow; the operation is convenience; the production cost is low; the ore selecting recovery rate and the ore concentrate grade are high; and the total recovery rate is over 85 percent.
Description
Technical field
The present invention relates to a kind of beneficiation method that from gneiss type ore, reclaims scheelite, belong to the technique of preparing field.
Background technology
Gneiss type ore type is the main geology deposit type that the occurring in nature scheelite exists, and in such ore, the disseminated grain size of scheelite is generally very thin, and association has impure minerals such as sulfide, tourmaline.The ore of the type often adopts the method for flotation to sort, and when sorting, requires fine grinding just can make the scheelite monomer dissociation on the technology, and need at first remove the grade that the impurity such as sulfide that are prone to float could guarantee final tungsten concentrate.It is more serious that but the scheelite after the fine grinding is crossed pulverizing, and flotation performance is relatively poor; Remove and to cause the tungsten part to be run off when being prone to floating impurity such as sulfide again.So, from gneiss type ore, reclaim scheelite with conventional Scheelite Flotation method, often mineral processing index is relatively poor, is difficult to effectively reclaim, and very easily causes the loss of metal.
Summary of the invention
In order to reclaim the scheelite in the gneiss type ore effectively, improve mineral processing index, maximally utilise existing resource, the present invention provides a kind of beneficiation method that from gneiss type ore, reclaims scheelite, realizes through following technical proposal.
A kind of beneficiation method that from gneiss type ore, reclaims scheelite adopts floatation process, comprise ore grinding, roughly select, selected, scan, it is characterized in that:
During said roughly selecting; In mass concentration is 25～60% flotation gneiss type ore raw ore slurry; Using the pH value of conditioning agent adjustment ore pulp is 7 ~ 9, presses 0.001～0.005 ‰ adding polyacrylamide of ore solid masses in the ore pulp again, presses 0.2～1 ‰ adding sulfoleate of solid masses in the ore pulp; Then through selected, scan after, obtain the scheelite concentrate.
Said conditioning agent is commercial sodium carbonate or NaOH.
The preferred concentration of said flotation gneiss type ore raw ore slurry is 40～55%.
The molecular weight of described polyacrylamide is 800～1,200 ten thousand units.
Described sulfoleate is the sulfonated products of oleate, and sulphonation rate is greater than 48%, preferred sulfonated oleic acid sodium, sulfonated oleic acid acid amides.
Said selected before, adding moduluses by 5～10% of ore solid masses in the ore pulp is 2.3～2.8 waterglass.
The inventive method is to add polyacrylamide and sulfoleate in the flotation raw ore slurry behind ore grinding; Not needing in advance sulfide and tourmaline etc. to be prone to floating thing removes; Directly carry out Scheelite Flotation, roughly select district's scheelite rate of recovery and reach more than 92%, the selected district scheelite rate of recovery is more than 95%; Concentrate grade is more than 55%, and overall recovery is more than 85%.
The present invention has advantage and effect: owing in raw ore slurry, added polyacrylamide, make the scheelite of microfine produce flocculation after, become the concentrate product and be entrained in other and contain in the tungsten mineral come-up together; Particularly it can purify flotation pulp, reduces the floatability of mineral such as tourmaline, sulfide, makes flotation froth cleaner; Add sulfoleate as collecting agent, the bubble amt in the time of can reducing flotation greatly, the selectivity of flotation and the functioning efficiency of medicament are higher, thereby have improved recovery rate in ore-dressing, make it to reach more than 90%; If when selected, add waterglass, can improve effective inhibition calcium, magnesium gangue mineral, increase substantially concentrate grade.The inventive method need not to change existing flotation process, and a need in process is sized mixing in existing flotation, drops into polyacrylamide and sulfoleate gets final product, and easy to operate, production cost is low, and recovery rate in ore-dressing and concentrate grade are high.
The specific embodiment
Below in conjunction with embodiment the present invention is done and to further describe.
Embodiment 1
Get 1 ton in gneiss type ore, contain WO
30.31%, sulfur-bearing 1.2%; This grinde ore to-200 orders are accounted for 85%, and the mass concentration of regulating flotation gneiss type ore raw ore slurry is 42%, when roughly selecting; In flotation gneiss type ore raw ore slurry, using the pH value of NaOH adjustment ore pulp is 8 ~ 9, and adding molecular weight again is the polyacrylamide 5g of 8,000,000 units, adds sulfonated oleic acid sodium 500g; Add modulus when selected and be 2.8 waterglass 3000 grams, after six selected, secondaries are scanned, obtain the scheelite concentrate then; Its grade is greater than 53%t, and tungsten recovery rate is greater than 85%.
Embodiment 2
Get 1 ton in gneiss type ore, contain WO
30.2%; This grinde ore to-200 orders are accounted for 88%, and the mass concentration of regulating flotation gneiss type ore raw ore slurry is 45%, when roughly selecting; In flotation gneiss type ore raw ore slurry, using the pH value of sodium carbonate adjustment ore pulp is 7～8; Adding molecular weight again is the polyacrylamide 1g of 1,200 ten thousand units, adds sulfonated oleic acid acid amides 1000g, roughly selects the open circuit flow process that adopts a thick essence two to sweep; Adopt one thick seven smart three to sweep the common process flow process that chats returns successively when selected; Obtain the scheelite concentrate, its grade is greater than 50%t, and tungsten recovery rate is greater than 83%.
Embodiment 3
Get 1 ton in gneiss type ore, contain WO
30.15%; This grinde ore to-200 orders are accounted for 92%, and the mass concentration of regulating flotation gneiss type ore raw ore slurry is 25%, when roughly selecting; In flotation gneiss type ore raw ore slurry, using the pH value of NaOH adjustment ore pulp is 8～9, and adding molecular weight again is the polyacrylamide 3g of 9,000,000 units, adds sulfonated oleic acid sodium 800g; Then through conventional selected, scan after; Obtain the scheelite concentrate, its grade is greater than 50%t, and tungsten recovery rate is greater than 90%.
Embodiment 4
Get 1 ton in gneiss type ore, contain WO
30.21%; This grinde ore to-200 orders are accounted for 85%, and the mass concentration of regulating flotation gneiss type ore raw ore slurry is 60%, when roughly selecting; In flotation gneiss type ore raw ore slurry, using the pH value of sodium carbonate adjustment ore pulp is 7～8, and adding molecular weight again is the polyacrylamide 4g of 1,100 ten thousand units, adds sulfonated oleic acid sodium 200g; Then through conventional selected, scan after; Obtain the scheelite concentrate, its grade is greater than 57%t, and tungsten recovery rate is greater than 84%.
Embodiment 5
Get 1 ton in gneiss type ore, contain WO
30.46%; This grinde ore to-200 orders are accounted for 88%, and the mass concentration of regulating flotation gneiss type ore raw ore slurry is 40%, when roughly selecting; In flotation gneiss type ore raw ore slurry, using the pH value of NaOH adjustment ore pulp is 8～9, and adding molecular weight again is the polyacrylamide 2g of 1,200 ten thousand units, adds sulfonated oleic acid acid amides 600g; Then through conventional selected, scan after; Obtain the scheelite concentrate, its grade is greater than 65%t, and tungsten recovery rate is greater than 88%.
Embodiment 6
Get 1 ton in gneiss type ore, contain WO
30.53%; This grinde ore to-200 orders are accounted for 90%, and the mass concentration of regulating flotation gneiss type ore raw ore slurry is 55%, when roughly selecting; In flotation gneiss type ore raw ore slurry, using the pH value of NaOH adjustment ore pulp is 8～9, and adding molecular weight again is the polyacrylamide 5g of 8,000,000 units, adds sulfonated oleic acid sodium 400g; Then through conventional selected, scan after; Obtain the scheelite concentrate, its grade is greater than 67%t, and tungsten recovery rate is greater than 87%.
Claims (6)
1. a beneficiation method that from gneiss type ore, reclaims scheelite adopts floatation process, comprise ore grinding, roughly select, selected, scan, it is characterized in that:
During said roughly selecting; In mass concentration is 25～60% flotation gneiss type ore raw ore slurry; Using the pH value of conditioning agent adjustment ore pulp is 7 ~ 9, presses 0.001～0.005 ‰ adding polyacrylamide of ore solid masses in the ore pulp again, presses 0.2～1 ‰ adding sulfoleate of solid masses in the ore pulp; Then through selected, scan after, obtain the scheelite concentrate.
2. beneficiation method according to claim 1 is characterized in that: said conditioning agent is commercial sodium carbonate or NaOH.
3. beneficiation method according to claim 1 is characterized in that: the preferred concentration of said flotation gneiss type ore raw ore slurry is 40～55%.
4. beneficiation method according to claim 1 is characterized in that: the molecular weight of described polyacrylamide is 800～1,200 ten thousand units.
5. beneficiation method according to claim 1 is characterized in that: described sulfoleate is the sulfonated products of oleate, and sulphonation rate is greater than 48%, preferred sulfonated oleic acid sodium, sulfonated oleic acid acid amides.
6. beneficiation method according to claim 1 is characterized in that: said selected before, adding moduluses by 5～10% of ore solid masses in the ore pulp is 2.3～2.8 waterglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110204534A CN102302982A (en) | 2011-07-21 | 2011-07-21 | Ore selecting method for recovering scheelite from gneiss-type ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110204534A CN102302982A (en) | 2011-07-21 | 2011-07-21 | Ore selecting method for recovering scheelite from gneiss-type ore |
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|---|---|
| CN102302982A true CN102302982A (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110204534A Pending CN102302982A (en) | 2011-07-21 | 2011-07-21 | Ore selecting method for recovering scheelite from gneiss-type ore |
Country Status (1)
| Country | Link |
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| CN (1) | CN102302982A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698864A (en) * | 2012-06-12 | 2012-10-03 | 湖南有色金属研究院 | Beneficiation method of white tungsten tailing |
| CN106733204A (en) * | 2016-12-08 | 2017-05-31 | 中南大学 | Efficient flotation separation combination medicament and its method for pre- decalcification in fluorite |
| CN107716118A (en) * | 2017-10-11 | 2018-02-23 | 江西理工大学 | A kind of preparation method and applications of Scheelite Flotation collecting agent |
| CN108993778A (en) * | 2018-06-22 | 2018-12-14 | 昆明理工大学 | A kind of scheelite normal temperature flotation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2445675A1 (en) * | 1974-09-25 | 1976-04-15 | Metallgesellschaft Ag | Flotation of scheelite ores - by conditioning with alkaline agents, adjusting pH, and foam flotating the mixt. |
| SU643199A1 (en) * | 1977-05-25 | 1979-01-25 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых "Механобр" | Collector for flotation of non-sulfide ores |
| US4488959A (en) * | 1981-09-21 | 1984-12-18 | Agar Gordon E | Scheelite flotation process |
| RU2088339C1 (en) * | 1991-04-16 | 1997-08-27 | Московский институт стали и сплавов | Method of dressing of tungsten-containing ores |
| CN101648157A (en) * | 2009-08-25 | 2010-02-17 | 广州有色金属研究院 | Beneficiation method of black and white tungsten mineral |
| CN101869876A (en) * | 2010-05-24 | 2010-10-27 | 广州有色金属研究院 | Ore dressing method of low-grade scheelite |
-
2011
- 2011-07-21 CN CN201110204534A patent/CN102302982A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2445675A1 (en) * | 1974-09-25 | 1976-04-15 | Metallgesellschaft Ag | Flotation of scheelite ores - by conditioning with alkaline agents, adjusting pH, and foam flotating the mixt. |
| SU643199A1 (en) * | 1977-05-25 | 1979-01-25 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых "Механобр" | Collector for flotation of non-sulfide ores |
| US4488959A (en) * | 1981-09-21 | 1984-12-18 | Agar Gordon E | Scheelite flotation process |
| RU2088339C1 (en) * | 1991-04-16 | 1997-08-27 | Московский институт стали и сплавов | Method of dressing of tungsten-containing ores |
| CN101648157A (en) * | 2009-08-25 | 2010-02-17 | 广州有色金属研究院 | Beneficiation method of black and white tungsten mineral |
| CN101869876A (en) * | 2010-05-24 | 2010-10-27 | 广州有色金属研究院 | Ore dressing method of low-grade scheelite |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698864A (en) * | 2012-06-12 | 2012-10-03 | 湖南有色金属研究院 | Beneficiation method of white tungsten tailing |
| CN106733204A (en) * | 2016-12-08 | 2017-05-31 | 中南大学 | Efficient flotation separation combination medicament and its method for pre- decalcification in fluorite |
| CN106733204B (en) * | 2016-12-08 | 2019-04-26 | 中南大学 | Efficient flotation separation combination medicament and its method for decalcification pre- in fluorite |
| CN107716118A (en) * | 2017-10-11 | 2018-02-23 | 江西理工大学 | A kind of preparation method and applications of Scheelite Flotation collecting agent |
| CN108993778A (en) * | 2018-06-22 | 2018-12-14 | 昆明理工大学 | A kind of scheelite normal temperature flotation method |
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Application publication date: 20120104 |