CN106925434A - One kind ore dressing defluorination process from beryllium ore deposit - Google Patents
One kind ore dressing defluorination process from beryllium ore deposit Download PDFInfo
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- CN106925434A CN106925434A CN201511021521.6A CN201511021521A CN106925434A CN 106925434 A CN106925434 A CN 106925434A CN 201511021521 A CN201511021521 A CN 201511021521A CN 106925434 A CN106925434 A CN 106925434A
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- ore
- mineral
- beryllium
- fluorine
- flotation
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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
- B03D1/02—Froth-flotation processes
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention belongs to technical field of beneficiation, and in particular to one kind ore dressing defluorination process from beryllium ore deposit；Of the invention first flotation obtains the bulk concentrate of purity berryllium mineral higher and fluorine mineral from raw ore, then suppresses berryllium mineral by adding waterglass, floatingly selects fluorine mineral, obtains the beryllium concentrate of low fluorine；Ore grinding can make berryllium mineral and fluorite mineral monomer dissociation, can more thoroughly be separated with gangue mineral in flotation；Sizing mixing can cause the ore pulp environment for being conducive to flotation, enable valuable mineral more completely flotation, while gangue mineral is preferably suppressed；Flotation optionally emersion target minreal, respectively obtains beryllium concentrate and fluorine-containing mineral；Both the process problem without acid waste water of the invention, also without exhaust pollution problems；The insoluble ore of acid is not only suitable for, and suitable for acid soluble ore；Process is simple, it is easy to operate, fluorine removal low cost is low in the pollution of the environment, and defluorination effect is good.
Description
Technical field
The invention belongs to technical field of beneficiation, and in particular to one kind ore dressing defluorination process from beryllium ore deposit.
Background technology
The extraction of beryllium oxide hasSulfuric acidMethod and fluoride method, current China are main with Production By Sulfuric Acid Process beryllium oxide.
Fluoride method never has production application, and reason is mainly people and fluoride method technique is recognized and studies inadequate.
Fluorine is adversely affected to multiple operations during Production By Sulfuric Acid Process beryllium oxide.Aluminium content is exceeded in being likely to result in beryllium oxide
Or the recovery of influence beryllium；In addition, when Fluorine in Ores content is high, the hydrogen fluoride gas etching apparatus that melting is formed,
Harm workers ' health, severe contamination environment.Usually require that the ratio between Fluorine in Ores and beryllium oxide less than 10%.It is existing
Flotation concentrate being used the Production By Sulfuric Acid Process beryllium oxide, fluorine is most with the ratio between beryllium oxide to be more than 20%, has very more
To more than 100%.
The report of the fluorine removal in beryllium ore dressing process is not yet found in current document.It is reduction in actual production
Influence with elimination fluorine takes different measures primarily directed to different operations, and these measures are mainly application
Chemical method fluorine removal.Wet method defluorinate is mainly uses dense sulfuric acid treatment fluorine removal before beryllium concentrate smelting, fluorine is generated fluorine
Change hydrogen effusion；Or defluorinate is leached using the concentrated sulfuric acid+defluorinating agent, and fluorine is entered leachate, beryllium enters leaching
In slag.Pyrogenic process defluorinate is mainly and changes melting ingredient ratio when smelting, and fluorine is generated SiF4And AlF3Gas
Body is escaped.
Wet method defluorinate can produce substantial amounts of fluorine-containing acid-bearing wastewater and waste gas, and reprocessing is difficult；The calcium sulfate of generation
SO is produced in reducing atmosphere melting2、CO、CO2Deng gas, operation and the production energy of electric arc furnaces are influenceed
Power.The proportioning of furnace charge is difficult to grasp during pyrogenic process defluorinate, is extremely difficult to not only ensure fluorine removal in production but also ensures that beryllium turns
The double effectses of rate, operation difficulty is big.Various methods have certain effect, but also by respective condition
Limitation, there is various disadvantages.
The content of the invention
For above-mentioned prior art, present invention aim at one kind ore dressing defluorination process from beryllium ore deposit is provided, use
To solve in the ore dressing process of beryllium, by the removal of fluorine-containing mineral, the purpose that fluorine drops in beryllium concentrate is reached.
In order to solve the above-mentioned technical problem, present invention one kind ore dressing defluorination process from beryllium ore deposit, including following step
Suddenly：
Step one, beryllium fluorine are mixed floating；
S11 ore grindings：Ore ore grinding to fineness -0.074mm is accounted for 50%~95%；
S12 sizes mixing：Adjustment ore pulp in solid mineral mass concentration be 15%~40%, then add sodium carbonate 1~
5kg/t, 1~3kg/t of NaOH, adjustment pH values of pulp are 10~11.5, add collecting agent oleic acid or enuatrol,
0.5~2kg/t of consumption, stirs 1~30min；The addition of sodium carbonate, NaOH and collecting agent oleic acid is referred both to
The corresponding addition of solid mineral per ton in ore pulp；
S13 flotation：Flotation is carried out to ore pulp, berryllium mineral and fluorine-containing mineral are adhered on bubble, float up to ore pulp
Liquid level, is scraped foam with float skimming device, and froth pulp is selected with flotation device again, and concentration times are 1~6 time,
Obtain the bulk concentrate of berryllium mineral and fluorine-containing mineral；
Step 2, beryllium fluorine are separated；
0.5~5kg/t of waterglass is added in the ore pulp of the bulk concentrate that step one is obtained, suppresses berryllium mineral, floated
Fluorine-containing mineral are selected, froth pulp is fluorine-containing mineral, surplus products are beryllium concentrate in ore pulp；The addition of waterglass
Amount refers to the corresponding addition of solid mineral per ton in ore pulp.
Mog -0.074mm described further accounts for 90%, sodium carbonate 3kg/t, NaOH 1kg/t,
Adjustment pH values of pulp is 11；Solid mineral per ton is corresponding during the addition of sodium carbonate and NaOH refers both to ore pulp
Addition.
Step described furtherS13Flotation using one thick four it is single-minded sweep, chats order return closed circuit technique stream
Journey, roughing flotation pulp mass concentration 25%, oleic acid or enuatrol consumption 1kg/t；Sodium carbonate is added when scanning
200g/t, NaOH 50g/t, oleic acid 300g/t；The addition of sodium carbonate, NaOH and oleic acid refers both to ore deposit
The corresponding addition of solid mineral per ton in slurry.
It is 1.2kg/t to add waterglass in step 2 described further during fluorine beryllium separating flotation；The addition of waterglass
Amount refers both to the corresponding addition of solid mineral per ton in ore pulp.
It is described furtherS11 ore grindings：Ore ore grinding to fineness -0.074mm is accounted for 60%~95%.
The addition of waterglass described further is 0.5~2kg/t；The addition of waterglass refers to per ton solid in ore pulp
The corresponding addition of body ore deposit.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
One kind of the invention ore dressing defluorination process from beryllium ore deposit passes through FLOTATION SEPARATION berryllium mineral and fluorine-containing mineral, in beryllium
Fluorine removal mineral are removed simultaneously in mineral ore dressing process, the beryllium concentrate of low fluorine has been obtained.Both the place without acid waste water
Reason problem, also without exhaust pollution problems；The insoluble ore of acid is not only suitable for, and suitable for acid soluble ore deposit
Stone.Process is simple, it is easy to operate, fluorine removal low cost is low in the pollution of the environment, and defluorination effect is good.
Brief description of the drawings
Fig. 1 is embodiment of the present invention one kind ore dressing defluorination process flow chart from beryllium ore deposit.
Specific embodiment
The present invention is elaborated with reference to the accompanying drawings and detailed description.
Tcrude ore is obtained purity beryllium ore deposit higher by ore dressing defluorination process by flotation in a kind of ore deposit from beryllium of the present invention
The bulk concentrate of thing and fluorine mineral, then add waterglass and make berryllium mineral inhibitor, the fluorine-containing mineral of flotation can be with
Obtain the relatively low beryllium concentrate of Oil repellent；
One kind ore dressing defluorination process from beryllium ore deposit of the invention is comprised the following steps：
Step one, beryllium fluorine are mixed floating；
S11 ore grindings：By ore ore grinding to fineness for -0.074mm accounts for 50%~95%, preferably by ore ore grinding
To fineness for -0.074mm accounts for 60%~95%；Ore grinding can make target minreal such as berryllium mineral and fluorite mineral monomer solution
From can more thoroughly be separated with gangue mineral in flotation；
S12 sizes mixing：Adjustment pulp solids mass concentration 15%~40%, addition 1~5kg/t of sodium carbonate (does not do
Special instruction, refers both to the corresponding addition of solid mineral per ton in ore pulp), 1~3kg/t of NaOH adjusts ore deposit
Slurry pH is 10~11.5, adds collecting agent oleic acid or enuatrol, and consumption 0.5~2kg/t ore deposits stir 1~30min；
Sizing mixing can cause the ore pulp environment for being conducive to flotation, enable valuable mineral more completely flotation, while gangue
Mineral are preferably suppressed；
S13 flotation：Ore pulp after pharmacy effect carries out flotation, and berryllium mineral and fluorine-containing mineral are adhered on bubble,
Mineral syrup liquid is floated up to, foam is scraped with float skimming device, froth pulp is selected with flotation device again, selected time
Number is 1~6 time, obtains the bulk concentrate of berryllium mineral and fluorine-containing mineral；Flotation optionally emersion purpose ore deposit
Thing, respectively obtains beryllium concentrate and fluorine-containing mineral；
Step 2, beryllium fluorine are separated；
Waterglass 0.5~5kg/t ore deposits, preferably water glass are added in the ore pulp of the beryllium fluorine bulk concentrate that step one is obtained
Glass addition is 0.5~2kg/t；Suppress berryllium mineral, the fluorine-containing mineral of flotation, froth pulp is fluorine-containing mineral, ore deposit
Surplus products are beryllium concentrate in slurry.
As shown in figure 1, the berryllium mineral in the beryllium ore deposit ore of Xinjiang is mainly bertrandite, gangue mineral is main
It is the mineral such as quartz, albite, potassium feldspar, sericite, fluorite, limonite.Element beryllium is primarily present in
In bertrandite；Element fluorine is primarily present in fluorite.Bertrandite granularity is thinner in ore, and particle diameter is general
It is 20~30 μm.Bertrandite is in close relations with fluorite, or is wrapped up with fluorite symbiosis or by fluorite.In alkalescence
Under the conditions of fluorite and berryllium mineral bulk flotation, four times are selected, obtain impure less fluorite with berryllium mineral
Bulk concentrate, due to fluorite floatability very well, the floatability of berryllium mineral is poor, can by suppressing berryllium mineral,
Flotation fluorite mineral, can be such that fluorine mineral are separated with berryllium mineral.
Experimental condition：Mog -0.074mm accounts for 90%, sodium carbonate 3kg/t ore deposits, NaOH 1kg/t ore deposits,
Adjustment pH values of pulp be 11, the bulk flotation of beryllium fluorine using one thick four it is single-minded sweep, chats order return closed circuit examination
Test flow, roughing flotation pulp concentration 25%, oleic acid consumption 1kg/t ore deposits.Sodium carbonate 200g/t is added when scanning
Ore deposit, NaOH 50g/t ore deposits, oleic acid 300g/t ore deposits.
Beryllium fluorine bulk concentrate is obtained by flotation, then carries out beryllium fluorine separating flotation.Added during fluorine beryllium separating flotation
Waterglass 1.2kg/t ore deposits, suppress berryllium mineral, the fluorine-containing mineral of flotation, the product in flotation cell as beryllium concentrate,
Result of the test is shown in Table 1.
Selected result of the test/the % of table 1
As it can be seen from table 1 first bulk flotation, obtains berryllium mineral and fluorine mineral bulk concentrate, then suppress beryllium
Mineral, flotation fluorine mineral can obtain the berryllium mineral concentrate of grade 9.26%.Fluorine can drop to from 4.93%
0.85%, F/BeO<10%.
Claims (6)
1. one kind ore dressing defluorination process from beryllium ore deposit, it is characterised in that the technique is comprised the following steps：
Step one, beryllium fluorine are mixed floating；
S11 ore grindings：Ore ore grinding to fineness -0.074mm is accounted for 50%~95%；
S12 sizes mixing：Adjustment ore pulp in solid mineral mass concentration be 15%~40%, then add sodium carbonate 1~
5kg/t, 1~3kg/t of NaOH, adjustment pH values of pulp are 10~11.5, add collecting agent oleic acid or oleic acid
Sodium, 0.5~2kg/t of consumption stirs 1~30min；The addition of sodium carbonate, NaOH and collecting agent oleic acid
Amount refers both to the corresponding addition of solid mineral per ton in ore pulp；
S13 flotation：Flotation is carried out to ore pulp, berryllium mineral and fluorine-containing mineral are adhered on bubble, float up to ore pulp
Liquid level, is scraped foam with float skimming device, and froth pulp is selected with flotation device again, and concentration times are 1~6 time,
Obtain the bulk concentrate of berryllium mineral and fluorine-containing mineral；
Step 2, beryllium fluorine are separated；
0.5~5kg/t of waterglass is added in the ore pulp of the bulk concentrate that step one is obtained, suppresses berryllium mineral,
The fluorine-containing mineral of flotation, froth pulp is fluorine-containing mineral, and surplus products are beryllium concentrate in ore pulp；Waterglass adds
Dosage refers to the corresponding addition of solid mineral per ton in ore pulp.
2. it is according to claim 1 one kind from beryllium ore deposit ore dressing defluorination process, it is characterised in that it is described
Mog -0.074mm account for 90%, sodium carbonate 3kg/t, NaOH 1kg/t, adjustment pH values of pulp is
11；The addition of sodium carbonate and NaOH refers both to the corresponding addition of solid mineral per ton in ore pulp.
3. it is according to claim 1 and 2 one kind from beryllium ore deposit ore dressing defluorination process, it is characterised in that
The stepS13Flotation using one thick four it is single-minded sweep, chats order return closed circuit technological process, roughing float
Mass concentration 25%, oleic acid or enuatrol consumption 1kg/t are starched in ore dressing；Sodium carbonate 200g/t, hydrogen are added when scanning
Sodium oxide molybdena 50g/t, oleic acid 300g/t；The addition of sodium carbonate, NaOH and oleic acid refers both to every in ore pulp
The corresponding addition of ton solid mineral.
4. it is according to claim 3 one kind from beryllium ore deposit ore dressing defluorination process, it is characterised in that it is described
It is 1.2kg/t to add waterglass in step 2 during fluorine beryllium separating flotation；The addition of waterglass refers both to every in ore pulp
The corresponding addition of ton solid mineral.
5. it is according to claim 1 one kind from beryllium ore deposit ore dressing defluorination process, it is characterised in that it is describedS11 ore grindings：Ore ore grinding to fineness -0.074mm is accounted for 60%~95%.
6. it is according to claim 1 one kind from beryllium ore deposit ore dressing defluorination process, it is characterised in that it is described
The addition of waterglass is 0.5~2kg/t；The addition of waterglass refers in ore pulp that solid mineral per ton is corresponding and adds
Dosage.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107649278A (en) * | 2017-11-16 | 2018-02-02 | 中钢集团马鞍山矿山研究院有限公司 | A kind of method for separating of low-grade titanium-containing magnet ore deposit |
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| CN107649278A (en) * | 2017-11-16 | 2018-02-02 | 中钢集团马鞍山矿山研究院有限公司 | A kind of method for separating of low-grade titanium-containing magnet ore deposit |
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