CN108543631A - A kind of beneficiation method of skarn type scheelite - Google Patents
A kind of beneficiation method of skarn type scheelite Download PDFInfo
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- CN108543631A CN108543631A CN201810441446.6A CN201810441446A CN108543631A CN 108543631 A CN108543631 A CN 108543631A CN 201810441446 A CN201810441446 A CN 201810441446A CN 108543631 A CN108543631 A CN 108543631A
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- scheelite
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- 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
- B03D1/018—Mixtures of inorganic and organic compounds
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- 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
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- 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
- B03D2201/06—Depressants
-
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention provides a kind of beneficiation method of skarn type scheelite, belongs to technical field of beneficiation.The collecting agent of sulphide ore is added in this method in the ore pulp that ore grinding obtains, and adds foaming agent flotation and sloughs the sulphide ore contained in ore.Sodium carbonate is added in ore pulp and adjusts pH, is stirred after adding the inhibitor hydroxyethyl cellulose and waterglass of gangue mineral, the collecting agent oxidized paraffin wax soap and lauroylamidopropyl betaine of scheelite is added, realize the FLOTATION SEPARATION of scheelite and gangue mineral.Reinforcing collecting by inhibiting to the reinforcing of gangue and to scheelite, can increase substantially the rate of recovery of Scheelite Concentrate.Composite restrainer that the present invention uses inhibits gangue mineral ability strong, and effect on environment is small, and combined capturing and collecting agent has the characteristics that at low cost, strong to scheelite collecting ability, is a kind of efficient skarn type scheelite beneficiation method.
Description
Technical field
The present invention relates to technical field of beneficiation, particularly relate to a kind of beneficiation method of skarn type scheelite.
Background technology
Tungsten is the important strategic resources in China, has particularly important purposes.China's tungsten resource rich reserves, in the world
There is very important status, but by the exploitation of last 100 years, grade is high, the tungsten resource of easy exploiting is increasingly deficient in tungsten industry,
Especially high-grade black tungsten resource becomes more and more important close to exhaustion, efficient utilize of scheelite resource.Skarn type is white
Tungsten ore has the characteristics that mineral disseminated grain size thin sunset and calcic gangue mineral such as calcite, fluorite content are more, the white tungsten of skarn type
The efficient flotation separation recycling of mine is always the problem of Mineral Processing Industry.
Scheelite and calcic gangue mineral have similar surface nature, especially in the complex environment of mineral floating, mine
Object surface can mutually convert, so that scheelite and calcic gangue mineral are more difficult to detach.Skarn type scheelite
Most typical floatation process has heating floatation and normal temperature flotation method, both methods to be required to that a large amount of waterglass inhibition is added
Calcic gangue and silicate mineral.It is a large amount of that waterglass is used to make beneficiation wastewater be difficult to settle so that cannot recycle, outer row
Then seriously affect environment.Macromolecular organic inhibitor has many advantages, such as that rejection ability is strong, is easy natural degradation and is modified.Fully profit
Strengthen the inhibiting effect to calcic gangue mineral with macromolecular organic inhibitor and other inhibitor, enables to skarn type white
Floatation of tungsten mineral process is more selective.In Scheelite Flotation, the synergistic effect of dual surfactant is made full use of, is mixed
Flotation of the combined capturing and collecting agent reinforcing at low cost, that effect is good to scheelite is obtained, the flotation recovery rate of scheelite can be also improved.By force
Change to the inhibition of gangue mineral and the collecting agent of scheelite, there is important meaning to the high efficiente callback of skarn type scheelite resource
Justice.
Invention content
The technical problem to be solved in the present invention is to provide a kind of beneficiation methods of skarn type scheelite.
It is as follows that the method comprising the steps of：
(1) preparation of ore and ore grinding：Mog in grinding operation is that the content less than 0.074 millimeter accounts for 70-
85%；
(2) after the stirring of addition collecting agent is sized mixing in the ore pulp obtained after step (1) ore grinding, foaming agent flotation of ores is added
In sulphide ore mineral, obtain sulphide ore and product from failing；
(3) it is first added in the product from failing that step (2) obtains after sodium carbonate sizes mixing, the inhibitor suppression of gangue mineral is added
Gangue mineral processed, the collecting agent for adding scheelite carry out the roughing of scheelite, obtain scheelite rougher concentration and rougher tailings,
The collecting agent of inhibitor and scheelite that gangue mineral is added in rougher tailings carries out scanning for scheelite, and it is 1 to scan number
Secondary, the product scanned returns to roughing operation；
(4) collecting of the inhibitor, scheelite of gangue mineral is added in the scheelite rougher concentration obtained in step (3)
Agent carries out five selected, acquisition Scheelite Concentrate and selected chats, and selected chats sequence returns to upper level operation.I.e. for the first time
Selected middling recurrence roughing, second of selected middling recurrence is selected for the first time, and the selected middling recurrence of third time is selected for the second time, the
Four times selected middling recurrence third time is selected；5th selected middling recurrence the 4th time is selected.
Wherein, the collecting agent in step (2) is sodium n-butyl-xanthate, and dosage is 80-100 g ton ores, foaming agent 2
Number oil, dosage are 28-40 g ton ores.
It is 7-9 that sodium carbonate is added in step (3) and adjusts slurry pH.
The inhibitor of gangue mineral is mixed by hydroxyethyl cellulose and waterglass in step (3), and wherein ethoxy is fine
Dimension element and waterglass dosage mass ratio are 1：4-1：6, in roughing, the dosage of the inhibitor of gangue mineral is 2400-3000 g tons
Ore；In scanning, the inhibitor dosage 1200-1500 g ton ores of gangue mineral.
The collecting agent of scheelite is the combination of oxidized paraffin wax soap and lauroylamidopropyl betaine in step (3), and combination is caught
It is 4 in mass ratio to receive oxidized paraffin wax soap and lauroylamidopropyl betaine in agent：1—5：1 mixes, in roughing, scheelite
Collector dosage be 600-1200 g ton ores；In scanning, the collector dosage of scheelite is 200-400 g ton ores.
It is selected for the first time in step (4) to be added without floating agent, it is that blank is selected；The second selected gangue mineral that is added
Inhibitor dosage is 1000-1500 g ton ores；It is selected for the third time to be added without floating agent, it is that blank is selected；4th time selected
The inhibitor dosage of gangue mineral is 300-600 g ton ores；5th time selected to be added without floating agent, is that blank is selected.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
1) inhibitor of the gangue mineral used is mixed by hydroxyethyl cellulose and waterglass, the composite restrainer pair
Gangue mineral in skarn type scheelite has good inhibiting effect, can obtain high-grade scheelite essence at normal temperatures
Mine, and the dosage of waterglass can be largely reduced.
2) collecting agent of the scheelite used is the combination of oxidized paraffin wax soap and lauroylamidopropyl betaine, the collecting agent
There is stronger collecting effect to scheelite, and flotation froth can be improved, improve the rate of recovery of scheelite.
The composite restrainer that the present invention uses inhibits gangue mineral ability strong, and effect on environment is small, and combined capturing and collecting agent has
Feature at low cost, strong to scheelite collecting ability is a kind of efficient skarn type scheelite beneficiation method.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with specific implementation
Example is described in detail.
The present invention provides a kind of beneficiation method of skarn type scheelite.
It is as follows that the method comprising the steps of：
(1) preparation of ore and ore grinding：Mog in grinding operation is that the content less than 0.074 millimeter accounts for 70-
85%；
(2) after the stirring of addition collecting agent is sized mixing in the ore pulp obtained after step (1) ore grinding, foaming agent flotation of ores is added
In sulphide ore mineral, obtain sulphide ore and product from failing；
(3) it is first added in the product from failing that step (2) obtains after sodium carbonate sizes mixing, the inhibitor suppression of gangue mineral is added
Gangue mineral processed, the collecting agent for adding scheelite carry out the roughing of scheelite, obtain scheelite rougher concentration and rougher tailings,
The collecting agent of inhibitor and scheelite that gangue mineral is added in rougher tailings carries out scanning for scheelite, and it is 1 to scan number
Secondary, the product scanned returns to roughing operation；
(4) collecting of the inhibitor, scheelite of gangue mineral is added in the scheelite rougher concentration obtained in step (3)
Agent carries out five selected, acquisition Scheelite Concentrate and selected chats, and selected chats sequence returns to upper level operation.
Wherein, the collecting agent in step (2) is sodium n-butyl-xanthate, and dosage is 80-100 g ton ores, foaming agent 2
Number oil, dosage are 28-40 g ton ores.
It is 7-9 that sodium carbonate is added in step (3) and adjusts slurry pH.
The inhibitor of gangue mineral is mixed by hydroxyethyl cellulose and waterglass in step (3), and wherein ethoxy is fine
Dimension element and waterglass dosage mass ratio are 1：4-1：6, in roughing, the dosage of the inhibitor of gangue mineral is 2400-3000 g tons
Ore；In scanning, the inhibitor dosage 1200-1500 g ton ores of gangue mineral.
The collecting agent of scheelite is the combination of oxidized paraffin wax soap and lauroylamidopropyl betaine in step (3), and combination is caught
It is 4 in mass ratio to receive oxidized paraffin wax soap and lauroylamidopropyl betaine in agent：1—5：1 mixes, in roughing, scheelite
Collector dosage be 600-1200 g ton ores；In scanning, the collector dosage of scheelite is 200-400 g ton ores.
It is selected for the first time in step (4) to be added without floating agent, it is that blank is selected；The second selected gangue mineral that is added
Inhibitor dosage is 1000-1500 g ton ores；It is selected for the third time to be added without floating agent, it is that blank is selected；4th time selected
The inhibitor dosage of gangue mineral is 300-600 g ton ores；5th time selected to be added without floating agent, is that blank is selected.
It is explained with reference to specific embodiment.
Embodiment 1
Raw material 1：Gansu skarn type scheelite, main chemical compositions are (wt%)
| WO3 | SiO2 | CaO |
| 0.37 | 51.95 | 9.17 |
Flow is：
Grinde ore is accounted for 73% to less than 0.074 millimeter, the ore pulp of milled is transferred in flotation cell, it is yellow that butyl is added
100 g ton ore of ortho acid sodium is added No. 2 28 g ton ore floatations of oil and removes sulphide ore after stirring.Obtaining Flotation of Sulfide Ores
2000 g ton ore of sodium carbonate, 400 g ton ore of inhibitor hydroxyethyl cellulose, waterglass 2000 are added in tailing afterwards
It is thick to carry out ore for g ton ore, 200 g ton ore of 800 g ton ore of oxidized paraffin wax soap and lauroylamidopropyl betaine
Choosing, obtains rougher concentration and rougher tailings.200 g ton ore of hydroxy ethyl fiber, waterglass 1000 are added into rougher tailings
G ton ore, 300 g ton ore of oxidized paraffin wax soap and 70 g ton ore of lauroylamidopropyl betaine scan for 1 time, obtain
To true tailings product, middling recurrence is scanned to roughing.The rough concentrate that roughing is obtained is selected into line blank, and obtained concentrate is again
240 g ton ore sodium hydroxyethyl celluloses are added, the progress of 1200 g ton ore of waterglass is selected for the second time, and obtained concentrate is not
Floating agent is added, selected (third time is selected) into line blank, 80 g ton ore of hydroxyethyl cellulose is added in obtained concentrate,
400 g ton ore of waterglass carry out the 4th time it is selected, obtain concentrate and be added without floating agent into selected (the 5th essence of line blank
Choosing) obtain final concentrate.Concentrate chats sequence back to upper level operation (i.e. selected middling recurrence roughing for the first time, for the second time
Selected middling recurrence is selected for the first time, second of selected, the 4th selected middling recurrence third time of the selected middling recurrence of third time
Selected, the 5th selected middling recurrence the 4th time is selected).
The results are shown in table below for beneficiation test
Float test index (wt%)
| Name of product | Yield | Grade | The rate of recovery |
| White tungsten fine ore | 0.54 | 52.17 | 76.14 |
| Sulphide ore | 3.97 | 0.24 | 2.58 |
| Tailing | 95.49 | 0.08 | 21.28 |
| Raw ore | 100 | 0.37 | 100 |
Embodiment 2
Raw material：Jiangxi skarn type scheelite sample ore, main chemical compositions are (wt%)
| WO3 | SiO2 | CaO |
| 0.54 | 50.48 | 10.23 |
Flow is：
Grinde ore is accounted for 75% to less than 74 microns, the ore pulp of milled is transferred in flotation cell, butyl xanthan is added
80 g ton ore of sour sodium is added No. 2 28 g ton ore floatations of oil and removes sulphide ore, after obtaining Flotation of Sulfide Ores after stirring
1800 g ton ore of sodium carbonate, 600 g ton ore of inhibitor hydroxyethyl cellulose, 2400 g ton of waterglass are added in tailing
Ore, 150 g ton ore of 750 g ton ore of oxidized paraffin wax soap and lauroylamidopropyl betaine carry out ore roughing, obtain
Rougher concentration and rougher tailings.300 g ton ore of hydroxy ethyl fiber, 1200 g ton mine of waterglass are added into rougher tailings
Stone, 250 g ton ore of oxidized paraffin wax soap and 50 g ton ore of lauroylamidopropyl betaine scan for 1 time, obtain final
Product from failing scans middling recurrence to roughing.The rough concentrate blank that roughing is obtained is selected (selected for the first time)；Obtained concentrate
300 g ton ore sodium hydroxyethyl celluloses are added, 1200 g ton ore of waterglass carries out selected for the second time；Obtained concentrate
Selected (third time selected) into line blank, obtained concentrate adds 80 g ton ore of hydroxyethyl cellulose, and 400 grams of waterglass/
Ton ore carry out the 4th time it is selected, obtain final concentrate.Concentrate chats sequence back to upper level operation (i.e. first time it is selected in
Mine returns to roughing, and second of selected middling recurrence is selected for the first time, second of selected, the 4th essence of the selected middling recurrence of third time
Select middling recurrence third time selected).
The results are shown in table below for beneficiation test：
Float test index (wt%)
| Name of product | Yield | Grade | The rate of recovery |
| White tungsten fine ore | 0.82 | 50.86 | 77.19 |
| Sulphide ore | 3.32 | 0.46 | 2.83 |
| Tailing | 95.86 | 0.11 | 19.98 |
| Raw ore | 100 | 0.54 | 100 |
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of beneficiation method of skarn type scheelite, it is characterised in that：Including steps are as follows：
(1) preparation of ore and ore grinding：Mog in grinding operation is that the content less than 0.074 millimeter accounts for 70-85%；
(2) it after the stirring of addition collecting agent is sized mixing in the ore pulp obtained after step (1) ore grinding, is added in foaming agent flotation of ores
Sulphide ore mineral obtain sulphide ore and product from failing；
(3) it is first added in the product from failing that step (2) obtains after sodium carbonate sizes mixing, the inhibitor that gangue mineral is added inhibits arteries and veins
Stone ore object, the collecting agent for adding scheelite carry out the roughing of scheelite, scheelite rougher concentration and rougher tailings are obtained, thick
The collecting agent of inhibitor and scheelite that gangue mineral is added in tailing is selected to carry out scanning for scheelite, it is 1 time to scan number, is swept
Obtained product is selected to return to roughing operation；
(4) be added in the scheelite rougher concentration obtained in the step (3) the inhibitor of gangue mineral, scheelite collecting agent into
Row five selected, acquisition Scheelite Concentrate and selected chats, selected chats sequence return to upper level operation.
2. the beneficiation method of skarn type scheelite according to claim 1, it is characterised in that：In the step (2)
Collecting agent is sodium n-butyl-xanthate, and dosage is 80-100 g ton ores, and foaming agent is No. 2 oil, and dosage is 28-40 g ton mines
Stone.
3. the beneficiation method of skarn type scheelite according to claim 1, it is characterised in that：Add in the step (3)
It is 7-9 to enter sodium carbonate to adjust slurry pH.
4. the beneficiation method of skarn type scheelite according to claim 1, it is characterised in that：Step (3) middle arteries
The inhibitor of stone ore object is mixed by hydroxyethyl cellulose and waterglass, wherein hydroxyethyl cellulose and waterglass dosage quality
Than being 1：4-1：6, in roughing, the dosage of the inhibitor of gangue mineral is 2400-3000 g ton ores；In scanning, gangue mineral
Inhibitor dosage 1200-1500 g ton ores.
5. the beneficiation method of skarn type scheelite according to claim 1, it is characterised in that：It is white in the step (3)
The collecting agent of tungsten ore is the combination of oxidized paraffin wax soap and lauroylamidopropyl betaine, oxidized paraffin wax soap and the moon in combined capturing and collecting agent
Osmanthus amido propyl betaine is 4 in mass ratio：1—5：1 mixes, and in roughing, the collector dosage of scheelite is 600-
1200 g ton ores；In scanning, the collector dosage of scheelite is 200-400 g ton ores.
6. the beneficiation method of skarn type scheelite according to claim 1, it is characterised in that：In the step (4)
Primary cleaning is added without floating agent, is that blank is selected；Second of selected inhibitor dosage that gangue mineral is added is 1000-
1500 g ton ores；It is selected for the third time to be added without floating agent, it is that blank is selected；The inhibitor of 4th selected gangue mineral
Dosage is 300-600 g ton ores；5th time selected to be added without floating agent, is that blank is selected.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038728A (en) * | 2019-04-24 | 2019-07-23 | 东北大学 | A method of hematite reverse flotation is carried out using high degradability amine collector |
| CN110773326A (en) * | 2019-11-08 | 2020-02-11 | 湖南辰州矿业有限责任公司 | Method for recycling underground water to scheelite flotation |
| CN111519047A (en) * | 2020-04-08 | 2020-08-11 | 厦门钨业股份有限公司 | Method for treating scheelite ore |
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| CN110038728A (en) * | 2019-04-24 | 2019-07-23 | 东北大学 | A method of hematite reverse flotation is carried out using high degradability amine collector |
| CN110773326A (en) * | 2019-11-08 | 2020-02-11 | 湖南辰州矿业有限责任公司 | Method for recycling underground water to scheelite flotation |
| CN111519047A (en) * | 2020-04-08 | 2020-08-11 | 厦门钨业股份有限公司 | Method for treating scheelite ore |
| CN111519047B (en) * | 2020-04-08 | 2022-04-29 | 厦门钨业股份有限公司 | Method for treating scheelite ore |
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Application publication date: 20180918 |