CN107983539A - Application of the hydrolysis of polymaleic anhydride in Scheelite Flotation - Google Patents
Application of the hydrolysis of polymaleic anhydride in Scheelite Flotation Download PDFInfo
- Publication number
- CN107983539A CN107983539A CN201711273389.7A CN201711273389A CN107983539A CN 107983539 A CN107983539 A CN 107983539A CN 201711273389 A CN201711273389 A CN 201711273389A CN 107983539 A CN107983539 A CN 107983539A
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- CN
- China
- Prior art keywords
- scheelite
- hydrolysis
- polymaleic anhydride
- flotation
- gangue mineral
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- 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.)
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Classifications
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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
- B03D1/004—Organic compounds
- B03D1/016—Macromolecular 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
- 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
- B03D2203/04—Non-sulfide ores
Abstract
The invention discloses a kind of application of hydrolysis of polymaleic anhydride in Scheelite Flotation；It is applied to using hydrolysis of polymaleic anhydride as gangue inhibitor in the FLOTATION SEPARATION of scheelite and gangue mineral；Hydrolysis of polymaleic anhydride is used as the inhibitor during Scheelite Flotation, has nontoxic, and pollution-free, dosage is low, and the selectivity superperformance such as strong, can effectively realize the FLOTATION SEPARATION of scheelite and gangue mineral, obtain the white tungsten rough concentrate of high-grade.
Description
Technical field
The present invention relates to a kind of new application of hydrolysis of polymaleic anhydride, and in particular to hydrolysis of polymaleic anhydride is as gangue ore deposit
Application of the thing inhibitor during Scheelite Flotation, more particularly to hydrolysis of polymaleic anhydride are used for as gangue mineral inhibitor
The roughing operation of scheelite, realizes the FLOTATION SEPARATION of scheelite and gangue mineral, belongs to scheelite technical field of beneficiation.
Background technology
All the time, the FLOTATION SEPARATION of scheelite and calcic gangue mineral is the difficult point and research hotspot of ore dressing circle.White
In the actual production of tungsten ore, fatty acid collecting agent room temperature roughing is used mostly --- concentrate and add a large amount of waterglass heating essences
The Dinko Petrov method of choosing realizes the FLOTATION SEPARATION of the calcic gangue mineral such as scheelite and fluorite, calcite, obtains the white of qualification
Tungsten ore concentrate product.In the rougher process of scheelite, frequently with waterglass as inhibitor, waterglass is to silicates such as quartz
Mineral have good selective inhibitory, but the suppression to calcium mineral makes gained scheelite rough concentrate without selectivity
In in addition to scheelite, containing a large amount of fluorites and calcite, seriously affect the flotation of scheelite, cause the grade of white tungsten rough concentrate compared with
It is low.In addition, waterglass dosage increases considerably during the calcite and fluorite in white tungsten rough concentrate make follow-up scheelite concentration,
Scheelite heating concentration cost is increased, and the grade of final tungsten concentrate can be influenced.
Hydrolysis of polymaleic anhydride is that a kind of raw material is easy to get, without phosphorus, nontoxic, soluble easily in water, chemical stability and heat endurance
Height, fully biodegradable, multiduty environmentally protective water treatment agent.Hydrolysis of polymaleic anhydride can be used below at 350 DEG C, right
Carbonate scale is quite effective, and the scale inhibition time is up to 100h, in addition, also having certain antiscaling dispersion to sulfate scale and phosphoric acid salt crust
Ability, available in the flash distillation plant of sea water desalination and low-pressure boiler, steam locomotive, crude oil dehydration, water delivery petroleum pipeline and work
In industry recirculated cooling water, have the function that the good incrustation scale that suppresses generates and peel off old dirt, scale inhibition performance is up to 98%.In addition hydrolyze
Polymaleic anhydride has certain corrosion inhibition and very strong dispersibility, more preferable with zinc salt compounding effect, can effectively prevent carbon
The corrosion of steel.But up to the present, also reported without research of the hydrolysis of polymaleic anhydride in Scheelite Flotation field.
The content of the invention
The problem of for scheelite and calcic gangue mineral FLOTATION SEPARATION poor selectivity, the purpose of the invention is to provide
A kind of hydrolysis of polymaleic anhydride is used for scheelite method separated with gangue mineral efficient flotation separation to gangue mineral, hydrolyzes poly- Malaysia
Acid anhydrides is strong to gangue mineral rejection ability, selectivity is strong, dosage is few, nontoxic and pollution-free and easy to operation and management, can be effective
Realize the FLOTATION SEPARATION of the gangue mineral such as scheelite and calcite, fluorite, obtain the white tungsten rough concentrate of high-grade.
In order to realize above-mentioned technical purpose, the present invention provides a kind of hydrolysis of polymaleic anhydride answering in Scheelite Flotation
With using hydrolysis of polymaleic anhydride as FLOTATION SEPARATION of the gangue mineral inhibitor applied to scheelite and gangue mineral.
Preferable scheme, the gangue mineral are included in quartz, fluorite, calcite, apatite, garnet and dolomite
It is at least one.During Scheelite Flotation, calcic gangue mineral includes fluorite, calcite, apatite and white in gangue mineral
Marble etc., the dosage of common inhibitor waterglass is big, and the suppression to calcium mineral causes scheelite rough concentrate without selectivity
Also containing a large amount of fluorites and calcite etc., scheelite grade is seriously affected.And the hydrolysis of polymaleic anhydride of the present invention not only can be with
Suppress silicate gangue mineral etc., while also there is higher selective inhibitory to calcic gangue mineral.
Preferable scheme, hydrolysis of polymaleic anhydride are used for the roughing in Scheelite Flotation as gangue mineral inhibitor
Journey.
Preferable scheme, the rougher process are：By scheelite to ore deposit it is levigate, size mixing after, using sodium carbonate or sulfuric acid as
PH adjuster, hydrolysis of polymaleic anhydride as gangue mineral inhibitor, fatty acid and/or hydroximic acid as collecting agent,
FLOTATION SEPARATION is carried out, obtains scheelite rough concentrate.
More preferably scheme, the scheelite account for more than 80% to the levigate grade satisfaction -0.074mm grade quality of ore deposit.
More preferably scheme, the additive amount of the sodium carbonate or sulfuric acid is to adjust pH values of pulp to 8~10 meterings.
More preferably scheme, fatty acid and/or the hydroximic acid collecting agent are with respect to addition of the scheelite to ore deposit
100~1000g/t.These collecting agents are collecting agent common during Scheelite Flotation.Preferably 200~600g/t.To ore deposit
The grade of middle tungsten is higher, and collector dosage is bigger.
More preferably scheme, the hydrolysis of polymaleic anhydride are 30~200g/t to the addition of ore deposit with respect to scheelite.
In scheelite rougher process the dosage of hydrolysis of polymaleic anhydride according to the unusual control of the ore properties to ore deposit 30~
200g/t is to ore deposit；Preferred solution is 40~150g/t.Further preferred scheme is 60~100g/t.To calcic gangue mineral in ore deposit
Content is higher, and the relative usage of hydrolysis of polymaleic anhydride is bigger.
Preferable scheme, scheelite is to can include tungstenic (WO in ore deposit3>0.1%) flotation tailing.
The technical scheme is that after ore pulp is sufficiently stirred, pH regulators sodium carbonate, inhibitor hydrolysis are sequentially added
Polymaleic anhydride and collecting agent carry out roughing, obtain scheelite rough concentrate.
Preferable scheme, hydrolysis of polymaleic anhydride can be directly added into when in use, can also be configured to 5~15% aqueous solution
Add.
The hydrolysis of polymaleic anhydride of the present invention, molecular formula is as follows, abbreviation HPMA, is a kind of known conventional chemical reagent.
Hydrolysis of polymaleic anhydride of the present invention is mainly by substantial amounts of carboxyl absorption in its molecular structure in scheelite and gangue
Mineral surfaces, reduce absorption of the collecting agent on gangue mineral surface, improve the hydrophily on gangue mineral surface, and it is to collecting agent
Absorption on scheelite surface suppresses without obvious so that scheelite floats, so as to fulfill scheelite and gangue mineral efficient flotation separation
Separation.
Compared with traditional Scheelite Flotation inhibitor, its advantage is the hydrolysis of polymaleic anhydride of the present invention：
1) present invention firstly provides be applied to the floating of scheelite using hydrolysis of polymaleic anhydride as gangue mineral inhibitor
During choosing, it is intended to realize efficiently separating for scheelite and gangue mineral (the especially calcic such as fluorite, calcite gangue mineral),
High-grade white tungsten rough concentrate is obtained, the efficiency of follow-up heating concentration operation is improved, improves final Scheelite Concentrate quality, reduce
Sort cost.
2) present invention has the spies such as dosage is small, selectivity is strong using hydrolysis of polymaleic anhydride as gangue mineral inhibitor
Point, can improve the grade of scheelite rough concentrate.
3) present invention is easy to get using hydrolysis of polymaleic anhydride as gangue mineral inhibitor, its raw material, good water solubility, operation
Simply, it is unlikely to deteriorate, it is biodegradable, it is nontoxic, pollution-free, it is good for the environment.
Brief description of the drawings
【Fig. 1】For the process flow chart of the present invention.
Embodiment
Following embodiments are intended to further illustrate present invention, rather than the protection model of limitation the claims in the present invention
Enclose.
Example in detail hydrolysis of polymaleic anhydride is sorted in white tungsten below by minal float test and actual ore
Application effect in ore deposit flotation.
Embodiment 1
For the scheelite and calcite minal granularity used in the embodiment of the present invention for -37~+74mm, purity is about 94%
With 99%.Scheelite and calcite minal are hybridly prepared into the uniform ore pulp of mass fraction 5%, pH with deionized water respectively
9-10 is adjusted to, HPMA 120g/t is added, adds collecting agent enuatrol 400g/t, it is 80.83% He to respectively obtain the rate of recovery
10.55% scheelite and calcite concentrate, shows that hydrolysis of polymaleic anhydride there is good selective depression to make calcite
With being expected to realize the FLOTATION SEPARATION of scheelite and calcite.
The contrast test of different HPMA dosages is carried out, as a result such as table 1.
1 minal flotation experimental results of table/%
The contrast test of different acidified sodium silicate dosages has been carried out, the results are shown in Table 2.
2 minal flotation experimental results of table/%
Embodiment 2
Molybdic tailing is selected as raw material using Henan, the element for having recovery value in ore is tungsten, WO3Grade is 0.1% or so,
CaO content is up to 33.39%, and the tungsten of material phase analysis the results show more than 94% exists in the form of scheelite, remaining is wolframite
And wolfram ocher, gangue mineral predominantly quartz, calcite, fluorite, garnet and wollastonite etc., substantial amounts of calcic gangue mineral
It will make a big impact to the flotation of scheelite.After ore pulp is sufficiently stirred, sodium carbonate, HPMA and 250g/t are sequentially added
Fatty acid collecting agent FX-6 carries out scheelite roughing, and flotation flowsheet is shown in Fig. 1.And make ratio with traditional acidified sodium silicate of use
Compared with the results are shown in Table 3.
3 Scheelite Flotation result of the test of table/%
Embodiment 3
Using certain more metal association scheelite raw ore as raw material, chemical analysis results show in the ore containing copper, lead, molybdenum,
A variety of valuable metal elements such as bismuth, tungsten, wherein copper, lead, zinc, molybdenum, bismuth mainly exist in the form of sulphide ore, and tungsten is mainly with scheelite
In the presence of WO3Grade is 0.17%, and main gangue mineral is quartzy, calcite, feldspar, also a small amount of pyrite, magnetic iron ore,
Hornblend etc..Raw ore is milled to fineness and accounts for more than 85% for -0.074mm, carries out the flotation of sulphide ore first, then sulphide ore floats
Tailing is selected to carry out Scheelite Flotation.Large quantities of lime is added during being sorted because of sulphide ore, pH is up to 11, therefore is floated in sulphide ore
Select addition sulfuric acid in Tailings Slurry to adjust pH value to 9-10, add HPMA 30g/t, oxidized paraffin wax soap 360g/t, obtains scheelite
Rough concentrate, wherein WO3Grade is 2.09%, and the rate of recovery 87.79%, flotation flowsheet is shown in Fig. 1.
Claims (5)
1. application of the hydrolysis of polymaleic anhydride in Scheelite Flotation, it is characterised in that：It is applied to as gangue mineral inhibitor
The FLOTATION SEPARATION of scheelite and gangue mineral.
2. application of the hydrolysis of polymaleic anhydride according to claim 1 in Scheelite Flotation, it is characterised in that：The arteries and veins
Stone ore thing includes at least one of quartz, calcite, fluorite, garnet, apatite and dolomite.
3. application of the hydrolysis of polymaleic anhydride according to claim 1 or 2 in Scheelite Flotation, it is characterised in that：Water
Solve the rougher process that polymaleic anhydride is used for as gangue mineral inhibitor in Scheelite Flotation.
4. application of the hydrolysis of polymaleic anhydride according to claim 3 in Scheelite Flotation, it is characterised in that：It is described thick
The process is selected to be：By scheelite to ore deposit it is levigate, size mixing after, pH adjuster, hydrolysis of polymaleic anhydride are used as using sodium carbonate or sulfuric acid
As gangue mineral inhibitor, fatty acid and/or hydroximic acid as collecting agent, FLOTATION SEPARATION is carried out, it is thick to obtain scheelite
Concentrate.
5. application of the hydrolysis of polymaleic anhydride according to claim 4 in Scheelite Flotation, it is characterised in that：It is described white
Tungsten ore accounts for more than 80% to the levigate grade satisfaction -0.074mm grade quality of ore deposit；
The additive amount of the sodium carbonate or sulfuric acid with adjust pH values of pulp to 8~10 metering；
Fatty acid and/or the hydroximic acid collecting agent is 100~1000g/t to the addition of ore deposit with respect to scheelite；It is described
Hydrolysis of polymaleic anhydride is 30~200g/t to the addition of ore deposit with respect to scheelite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711273389.7A CN107983539A (en) | 2017-12-06 | 2017-12-06 | Application of the hydrolysis of polymaleic anhydride in Scheelite Flotation |
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| CN201711273389.7A CN107983539A (en) | 2017-12-06 | 2017-12-06 | Application of the hydrolysis of polymaleic anhydride in Scheelite Flotation |
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Cited By (4)
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| CN110653070A (en) * | 2019-09-28 | 2020-01-07 | 北京矿冶科技集团有限公司 | Multi-metal sulfide ore flotation separation inhibitor and flotation separation method thereof |
| CN111036412A (en) * | 2019-11-27 | 2020-04-21 | 东北大学 | Application of high-efficiency inhibitor HPMA in positive flotation and magnesium removal of phosphate ore |
| CN111715409A (en) * | 2020-07-01 | 2020-09-29 | 中南大学 | Combined lead inhibitor of micro-fine particle galena and application thereof |
| CN114653481A (en) * | 2022-05-17 | 2022-06-24 | 昆明理工大学 | Polymer inhibitor and application thereof |
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Cited By (6)
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| CN111036412A (en) * | 2019-11-27 | 2020-04-21 | 东北大学 | Application of high-efficiency inhibitor HPMA in positive flotation and magnesium removal of phosphate ore |
| CN111715409A (en) * | 2020-07-01 | 2020-09-29 | 中南大学 | Combined lead inhibitor of micro-fine particle galena and application thereof |
| CN111715409B (en) * | 2020-07-01 | 2021-07-23 | 中南大学 | Combined lead inhibitor of micro-fine particle galena and application thereof |
| CN114653481A (en) * | 2022-05-17 | 2022-06-24 | 昆明理工大学 | Polymer inhibitor and application thereof |
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Application publication date: 20180504 |