CN105268560A - Method for simultaneous anti-flotation of carbonate and silicate in phosphorus ore - Google Patents
Method for simultaneous anti-flotation of carbonate and silicate in phosphorus ore Download PDFInfo
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- CN105268560A CN105268560A CN201510774452.XA CN201510774452A CN105268560A CN 105268560 A CN105268560 A CN 105268560A CN 201510774452 A CN201510774452 A CN 201510774452A CN 105268560 A CN105268560 A CN 105268560A
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- phosphorus
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- ore
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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
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/021—Froth-flotation processes for treatment of phosphate ores
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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
- B03D2203/04—Non-sulfide ores
- B03D2203/06—Phosphate ores
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method for simultaneous anti-flotation of carbonate and silicate in phosphorus ore. The method comprises the specific steps that phosphate ore is added into a mill to be ground; the ground phosphate ore pulp is subjected to desliming to remove fine fraction; rest coarse ore pulp enters a phosphorus inhibitor agitator, and a phosphorus inhibitor is added into the agitator for pulp mixing; after pulp mixing is conducted through the phosphorus inhibitor, the ore pulp enters a collecting agent agitator, and a collecting agent is added into the agitator for pulp mixing; and after pulp mixing is conducted through the collecting agent, the ore pulp enters a flotation machine for phosphorus ore anti-flotation, floating foam is carbonate minerals and silicate minerals, and underflow in a tank is phosphorus concentrate. By the adoption of the method, the carbonate and the silicate in the phosphorus ore can be floated out simultaneously, the flotation process and the flotation reagent system are simplified, and the reagent use amount and the cost of phosphorus ore anti-flotation are reduced.
Description
Technical field
The invention belongs to flotation of phosphate rock technical field, particularly relate to carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore.
Background technology
In phosphate rock floating, a lot of mid low grade phosphate rock stone needs to remove carbonate mineral and silicate mineral simultaneously, and the floatation process usually adopted is: direct reverse flotation technique or bi-anti-symmetric matrix technique.Direct reverse flotation technique adds alkali and waterglass suppression silicate, add direct flotation collecting agent and select phosphate and carbonate mineral, and then in phosphate and carbonate, add inorganic acid suppression phosphate, add carbonate collecting agent reverse flotation and go out carbonate, finally obtain phosphorus concentrate.Bi-anti-symmetric matrix technique adds inorganic acid to suppress phosphate, adds carbonate collecting agent reverse flotation carbonate mineral, and then with after adjusting PH with base value, add silicate collecting agent reverse flotation silicic acid mineral, finally obtain phosphorus concentrate.Above-mentioned two kinds of floatation process all exist, and flow process is longer, and medicament kind is more, and regime of agent is complicated, and dosing is comparatively large, the problems such as cost is higher.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, carbonate and silicate reverse flotation method simultaneously in a kind of new phosphorus ore is provided, this process simplify in phosphorus ore the flow process and regime of agent of removing carbonate mineral and silicate mineral, reduce dosing and cost.
Technical problem to be solved by this invention is realized by following technical scheme.The present invention is carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore, and be characterized in, its step is as follows:
(1) rock phosphate in powder is added in grinding machine carry out ore grinding;
(2) fine fraction is removed in the phosphorus ore ore pulp desliming after ore grinding; Described fine fraction sludge is-0.038mm;
(3) remaining coarse grain ore pulp enters phosphorus inhibitor agitator, adds phosphorus inhibitor and size mixing in agitator;
(4) after phosphorus inhibitor is sized mixing, ore pulp enters collecting agent agitator, adds collecting agent and size mixing in agitator;
(5) after collecting agent is sized mixing, ore pulp enters flotation device and carries out phosphate reverse flotation, and the foam of floating is carbonate mineral and silicate mineral, and the underflow in groove is phosphorus concentrate.
Carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore of the present invention, its further preferred technical scheme is: the fine fraction sludge-0.030mm or-0.020mm or-0.010mm described in step (2).
Carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore of the present invention, its further preferred technical scheme be: the phosphorus inhibitor described in step (3) is selected from sodium pyrophosphate, calgon, citric acid and salt thereof, ATMP and salt, HEDP and salt thereof, ethylene diamine tetra methylene phosphonic acid and salt, diethylene triamine pentamethylene phosphonic and salt thereof, 2-phosphonobutane-1, mixtures of one or more compositions in 2,4-tricarboxylic acids and salt thereof.
Carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore of the present invention, its further preferred technical scheme is: the phosphorus inhibitor time of sizing mixing described in step (3) is 1min ~ 15min.
Carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore of the present invention, its further preferred technical scheme is: the phosphorus inhibitor consumption described in step (3) is 0.1kg/t ~ 3kg/t.
Carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore of the present invention, its further preferred technical scheme is: the collecting agent time of sizing mixing described in step (4) is 1min ~ 15min.
Carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore of the present invention, its further preferred technical scheme is: the total consumption of collecting agent described in step (5) is 0.3kg/t ~ 3kg/t.
Carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore of the present invention, its further preferred technical scheme is: the phosphate reverse flotation described in step (5) divides 2 ~ 5 interpolation collecting agents.
Collecting agent described in the present invention can be applicable to the collecting agent of carbonate and silicate, such as fatty acid collecting agent, fatty amines collecting agent for any one disclosed in existing.
Compared with prior art, the advantage of the inventive method is, in phosphate reverse flotation carbonate and silicate process, add phosphorus inhibitor and collecting agent, carbonate in phosphorus ore and silicate can be flotated simultaneously, simplify flow process and the regime of agent of phosphate reverse flotation carbonate and silicate, reduce dosing and cost.
Detailed description of the invention
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not form the restriction to its right.
Embodiment 1, carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore, its step is as follows:
(1) rock phosphate in powder is added in grinding machine carry out ore grinding;
(2) fine fraction is removed in the phosphorus ore ore pulp desliming after ore grinding; Described fine fraction sludge is-0.038mm;
(3) remaining coarse grain ore pulp enters phosphorus inhibitor agitator, adds phosphorus inhibitor and size mixing in agitator;
(4) after phosphorus inhibitor is sized mixing, ore pulp enters collecting agent agitator, adds collecting agent and size mixing in agitator;
(5) after collecting agent is sized mixing, ore pulp enters flotation device and carries out phosphate reverse flotation, and the foam of floating is carbonate mineral and silicate mineral, and the underflow in groove is phosphorus concentrate.
Embodiment 2, in a kind of phosphorus ore described in embodiment 1, carbonate and silicate are simultaneously in reverse flotation method, and the fine fraction sludge described in step (2) is-0.030mm, and all the other are identical with embodiment 1.
Embodiment 3, in a kind of phosphorus ore described in embodiment 1, carbonate and silicate are simultaneously in reverse flotation method, and the fine fraction sludge described in step (2) is-0.020mm, and all the other are identical with embodiment 1.
Embodiment 4, in a kind of phosphorus ore described in embodiment 1, carbonate and silicate are simultaneously in reverse flotation method, and the fine fraction sludge described in step (2) is-0.010mm, and all the other are identical with embodiment 1.
Embodiment 5, carbonate and silicate simultaneously in reverse flotation method in a kind of phosphorus ore described in any one in embodiment 1-4: the phosphorus inhibitor described in step (3) is selected from sodium pyrophosphate, calgon, citric acid and salt thereof, ATMP and salt, HEDP and salt thereof, ethylene diamine tetra methylene phosphonic acid and salt, diethylene triamine pentamethylene phosphonic and salt thereof, 2-phosphonobutane-1, mixtures of one or more compositions in 2,4-tricarboxylic acids and salt thereof.
Embodiment 6, carbonate and silicate simultaneously in reverse flotation method in a kind of phosphorus ore described in any one in embodiment 1-5: the phosphorus inhibitor time of sizing mixing described in step (3) is 1min ~ 15min.
Embodiment 7, carbonate and silicate simultaneously in reverse flotation method in a kind of phosphorus ore described in any one in embodiment 1-6: the phosphorus inhibitor consumption described in step (3) is 0.1kg/t ~ 3kg/t.
Embodiment 8, carbonate and silicate simultaneously in reverse flotation method in a kind of phosphorus ore described in any one in embodiment 1-7: the collecting agent time of sizing mixing described in step (4) is 1min ~ 15min.
Embodiment 9, carbonate and silicate simultaneously in reverse flotation method in a kind of phosphorus ore described in any one in embodiment 1-8: the total consumption of collecting agent described in step (5) is 0.3kg/t ~ 3kg/t.
Embodiment 10, carbonate and silicate simultaneously in reverse flotation method in a kind of phosphorus ore described in any one in embodiment 1-9: the phosphate reverse flotation described in step (5) is divided and added collecting agents 2 ~ 5 times.
Embodiment 11, carbonate and silicate reverse flotation method application test one simultaneously in a kind of phosphorus ore:
Certain phosphorus ore sample ore one, removes the thin mud of-0.010mm after ore grinding, remaining+0.010mm grade is as floatation feed, adopt reverse flotation flowsheet flotation carbonate and silicate mineral simultaneously, experimental condition is: phosphorus inhibitor is sodium pyrophosphate, consumption 0.8kg/t, mixing time 2min; Fatty acid collecting agent first time dosing, mixing time 2min, consumption 0.9kg/t; The dosing of fatty acid collecting agent second time, mixing time 1min, consumption 0.5kg/t; Fatty acid collecting agent third time dosing, mixing time 1min, consumption 0.2kg/t.Result of the test is: as floatation feed raw ore P
2o
5grade is 16.50%, and content of MgO is 4.99%, can obtain phosphorus concentrate P
2o
5grade is 32.43%, and content of MgO is 0.87%, P
2o
5flotation recovery rate is 81.85%.
Embodiment 12, carbonate and silicate reverse flotation method application test two simultaneously in a kind of phosphorus ore:
Certain phosphorus ore sample ore two, removes the thin mud of-0.010mm after ore grinding, remaining+0.010mm grade is as floatation feed, adopt reverse flotation flowsheet flotation carbonate and silicate mineral simultaneously, experimental condition is: phosphorus inhibitor is sodium pyrophosphate, consumption 0.8kg/t, mixing time 2min; The first time dosing of fatty amines collecting agent, mixing time 2min consumption 0.9kg/t; The dosing of fatty amines collecting agent second time, mixing time 1min, consumption 0.3kg/t; The third time dosing of fatty amines collecting agent, mixing time 1min, consumption 0.15kg/t.Result of the test is: as floatation feed raw ore P
2o
5grade is 18.54%, and content of MgO is 3.71%, can obtain phosphorus concentrate P
2o
5grade is 32.36%, and content of MgO is 0.79%, P
2o
5flotation recovery rate is 90.19%.
Claims (8)
1. a carbonate and silicate reverse flotation method simultaneously in phosphorus ore, it is characterized in that, its step is as follows: rock phosphate in powder adds in grinding machine and carries out ore grinding by (1);
(2) fine fraction is removed in the phosphorus ore ore pulp desliming after ore grinding; Described fine fraction sludge is-0.038mm;
(3) remaining coarse grain ore pulp enters phosphorus inhibitor agitator, adds phosphorus inhibitor and size mixing in agitator;
(4) after phosphorus inhibitor is sized mixing, ore pulp enters collecting agent agitator, adds collecting agent and size mixing in agitator;
(5) after collecting agent is sized mixing, ore pulp enters flotation device and carries out phosphate reverse flotation, and the foam of floating is carbonate mineral and silicate mineral, and the underflow in groove is phosphorus concentrate.
2. carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore according to claim 1, is characterized in that: the fine fraction sludge-0.030mm or-0.020mm or-0.010mm described in step (2).
3. carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore according to claim 1, it is characterized in that: the phosphorus inhibitor described in step (3) is selected from sodium pyrophosphate, calgon, citric acid and salt thereof, ATMP and salt, HEDP and salt thereof, ethylene diamine tetra methylene phosphonic acid and salt, diethylene triamine pentamethylene phosphonic and salt thereof, 2-phosphonobutane-1, mixtures of one or more compositions in 2,4-tricarboxylic acids and salt thereof.
4. carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore according to claim 1, is characterized in that: the phosphorus inhibitor time of sizing mixing described in step (3) is 1min ~ 15min.
5. carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore according to claim 1, is characterized in that: the phosphorus inhibitor consumption described in step (3) is 0.1kg/t ~ 3kg/t.
6. carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore according to claim 1, is characterized in that: the collecting agent time of sizing mixing described in step (4) is 1min ~ 15min.
7. carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore according to claim 1, is characterized in that: the total consumption of collecting agent described in step (5) is 0.3kg/t ~ 3kg/t.
8. carbonate and silicate reverse flotation method simultaneously in a kind of phosphorus ore according to claim 1, is characterized in that: the phosphate reverse flotation described in step (5) is divided and added collecting agents 2 ~ 5 times.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689149A (en) * | 2016-04-27 | 2016-06-22 | 中蓝连海设计研究院 | Double-reverse flotation method applicable to silico-calcium phosphorite |
| CN106583052A (en) * | 2016-12-30 | 2017-04-26 | 中蓝连海设计研究院 | Method for conducting flotation on phosphate minerals in neutral to faintly acid ore pulp |
| CN107486338A (en) * | 2017-08-30 | 2017-12-19 | 厦门紫金矿冶技术有限公司 | A kind of floatation process of high efficiente callback complex copper oxide ore |
| CN108654844A (en) * | 2018-04-28 | 2018-10-16 | 中南大学 | A kind of application of organophosphor acid compounds in mineral floating |
| CN109261366A (en) * | 2018-09-10 | 2019-01-25 | 中南大学 | A kind of combination medicament and its application method removing calcite in advance for high calcium fluorite reverse flotation |
| CN111036415A (en) * | 2019-11-28 | 2020-04-21 | 东北大学 | Application of inhibitor HEDP in magnesite direct flotation decalcification |
| CN111195563A (en) * | 2020-01-10 | 2020-05-26 | 昆明理工大学 | Preparation method and application method of inhibitor for separation of tennantite and chalcopyrite |
| CN111215247A (en) * | 2020-01-07 | 2020-06-02 | 中南大学 | Inhibitor for high-calcium fluorite direct flotation and flotation method |
| CN111451001A (en) * | 2020-03-10 | 2020-07-28 | 中国地质科学院矿产综合利用研究所 | Medium-low grade mixed collophanite flotation separation reagent system and application thereof |
| CN112058503A (en) * | 2020-08-25 | 2020-12-11 | 武汉工程大学 | Silico-calcium collophanite double-reverse flotation process |
| CN112317135A (en) * | 2020-10-13 | 2021-02-05 | 中南大学 | Combined inhibitor for flotation separation of copper-lead sulfide ore and application thereof |
| CN112871437A (en) * | 2021-01-11 | 2021-06-01 | 中国地质科学院矿产综合利用研究所 | Recovery method of ultra-fine ilmenite |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689149B (en) * | 2016-04-27 | 2018-03-06 | 中蓝连海设计研究院 | A kind of bi-anti-symmetric matrix method of suitable silicon calcium quality ore |
| CN105689149A (en) * | 2016-04-27 | 2016-06-22 | 中蓝连海设计研究院 | Double-reverse flotation method applicable to silico-calcium phosphorite |
| CN106583052A (en) * | 2016-12-30 | 2017-04-26 | 中蓝连海设计研究院 | Method for conducting flotation on phosphate minerals in neutral to faintly acid ore pulp |
| CN106583052B (en) * | 2016-12-30 | 2018-09-11 | 中蓝连海设计研究院有限公司 | A method of the flotation phosphate mineral in neutrality to faintly acid ore pulp |
| CN107486338A (en) * | 2017-08-30 | 2017-12-19 | 厦门紫金矿冶技术有限公司 | A kind of floatation process of high efficiente callback complex copper oxide ore |
| CN107486338B (en) * | 2017-08-30 | 2019-06-04 | 厦门紫金矿冶技术有限公司 | A kind of floatation process of high efficiente callback complex copper oxide ore |
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