CN110013913A - A kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate - Google Patents
A kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate Download PDFInfo
- Publication number
- CN110013913A CN110013913A CN201910402895.4A CN201910402895A CN110013913A CN 110013913 A CN110013913 A CN 110013913A CN 201910402895 A CN201910402895 A CN 201910402895A CN 110013913 A CN110013913 A CN 110013913A
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- CN
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- Prior art keywords
- fluorite
- calcium carbonate
- walkthrough
- floatation process
- gradation sizing
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- 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
-
- 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
Abstract
The invention discloses a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate: (1) mineral being crushed to 8mm or less；(2) mineral after fine crushing in step 1 are sieved using 3mm vibrating screen, accounts for 80~85% below 3mm or less product ore grinding to -200 mesh, 3mm or more product makees tailing discarding；(3) product in step (2) after ore grinding sequentially adds activator sodium carbonate, inhibitor waterglass, collecting agent and carries out roughing, keeps pH values of pulp 8~9, obtain rougher concentration and rougher tailings；(4) inhibitor waterglass is added in rougher tailings in step (3) to carry out scanning to obtain tailing；(5) the selected operation of inhibitor hydrochloric acid progress is added in rougher concentration in step (3) and obtains fluorite concentrate.The present invention excludes calcium carbonate by gradation sizing before flotation in advance, can simplify flotation production procedure, reduce the enrichment in concentrate of calcium carbonate, while increasing FLOTATION SEPARATION efficiency again, reduces production cost.
Description
Technical field
The invention belongs to fluorite ore dressing technology field more particularly to a kind of fluorite of gradation sizing walkthrough calcium carbonate are floating
Select technique.
Background technique
Fluorite is important fluorine-containing industrial mineral, and the separation of fluorite and calcite is one of difficult point of worker.At present for
There are mainly two types of the method for separating of high carbon acid calcium type fluorite ore, the calcium carbonate thicker for disseminated grain size, using artificial hand selection, people
The gangue minerals such as bulk calcium carbonate are rejected in the methods of work elutriation；The calcium carbonate type fluorite ore thin for disseminated grain size, generallys use
The method of fine grinding flotation is come the separation that carries out.But in the exploitation of actual fluorite ore, the disseminated grain size of the gangues such as calcium carbonate is often
It is not single coarse fraction or single fine fraction, the methods of artificial hand selection cannot remove fine grained calcium carbonate, only only with floating
It selects technique that part coarse grain calcium carbonate is made to enter flotation, influences the recycling of fluorite.Therefore, how developing one kind can exclude slightly
The gangues such as granular calcium carbonate, and by floatation process or the combined mineral dressing technology of qualified products can be obtained as urgently to be resolved at present
Problem.
Summary of the invention
In order to solve the problems in the existing technology, the purpose of the present invention is to provide a kind of gradation sizing walkthrough carbonic acid
The fluorite floatation process of calcium can effectively be enriched with fluorite, realize efficiently separating for the gangue minerals such as fluorite and calcium carbonate, obtain
To qualified fluorite concentrate product.
In order to achieve the above technical purposes, the present invention adopts the following technical scheme:
A kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate, includes the following steps:
(1) mineral are crushed to 8mm or less；
(2) mineral after fine crushing in step 1 are sieved using 3mm vibrating screen, 3mm or less product ore grinding to -200
80%~85% is accounted for below mesh, 3mm or more product makees tailing discarding；
(3) product in step (2) after ore grinding, sequentially add pH activator sodium carbonate, inhibitor waterglass, collecting agent into
Row roughing keeps pH values of pulp 8~9, obtains rougher concentration and rougher tailings；
(4) inhibitor waterglass is added in rougher tailings in step (3) to carry out scanning operation generation true tailings；
(5) the selected operation of inhibitor hydrochloric acid progress is added in rougher concentration in step (3) and finally obtains fluorite concentrate.
In technical solution of the present invention, gradation sizing is carried out to product fine crushing and excludes the arteries and veins such as a part of coarse granule calcium carbonate in advance
Stone, using pH activator sodium carbonate, inhibitor waterglass and hydrochloric acid, collecting agent, by one roughing, five times it is selected, three times sweep
Flotation flowsheet is selected, fluorite can be effectively enriched with, efficiently separating for the gangue minerals such as fluorite and calcium carbonate is realized, obtains qualified fluorite
Product.
Preferably, the mineral are calcium carbonate type fluorite ore, CaF in step (1)2Grade > 10%, CaCO3Grade >
15%.
Preferably, 3mm or more product is sieved using 6mm vibrating screen, and 3~6mm is back to step in step (1)
(1) in, 6mm or more product makees tailing discarding.
Preferably, collecting agent is selected from least one of oleic acid, saponification oleic acid, sulfonated oleic acid in step (3).
Preferably, the collector dosage is 500~1500g/t relative to mine additional amount is given, described in step (3)
For waterglass dosage relative to being 800~3000g/t to mine additional amount, the sodium carbonate amount is 500 relative to mine additional amount is given
~2000g/t.
Preferably, the collecting agent mass fraction is 5~10% in step (3), the waterglass mass fraction is 5
~15%, the sodium carbonate mass fraction is 5~20%.
Preferably, in step (4), scanning number is 1~3 time, scan every time in inhibitor waterglass dosage it is opposite
In to mine additional amount be 0~300g/t.
It is further preferred that in step (4), scanning number is 3 times, and scavenger concentrate successively returns to last time and scans operation, is swept
It selects tailing to enter and scans operation next time, generate true tailings.
Preferably, inhibitor salt acid mass fraction is 5~10% in step (5).
Preferably, in step (5), concentration times are 5~8 times, it is selected every time in inhibitor hydrochloric acid dosage relative to
It is 50~200g/t to mine additional amount.
It is further preferred that concentration times are 5 times, and selected chats successively returns to last time selected operation, most in step (5)
Fluorite concentrate is obtained eventually.
Sodium carbonate of the present invention, waterglass, oleic acid, hydrochloric acid etc. belong to commercially available conventional reagent.
Relative to existing calcium carbonate type fluorite ore dressing technology, the effective effect of technical solution of the present invention bring:
(1) calcium carbonate type fluorite ore is realized compared with the gangues such as a large amount of calcium carbonate of skimming under coarse fraction, alternative artificial hand
Technique is selected, staff labor intensity is reduced, is reduced into floating fluorite calcium carbonate content, fluorite ore is reduced in the loss of roughing operation, mentions
High beneficiating efficiency；
(2) grade of selected fluorite is improved, circulation of the calcium carbonate in cleaning technological flowasheet is reduced, reduces the gangues such as calcium carbonate
Mineral are mingled with the rate of recovery that fluorite is improved into fluorite concentrate, reduce separating difficulty；
(3) medicament of the present invention system is simple, and technique is simplified, and sharpness of separation is high, considerably reduces beneficiation cost, and this
It invents used medicament and pollutes small, easily operated, the pressure of the subsequent environmentally friendly link of mitigation, it is practical.
Detailed description of the invention
Fig. 1 is the flotation process figure of the embodiment of the present invention 1；
Fig. 2 is the flotation process figure of comparative example 1.
Specific embodiment
Son further illustrates the present invention with reference to embodiments, is not intended to limit the present invention.
Embodiment 1
1. raw mineral materials:
Take Hunan fluorite ore mountain plateau ore, CaF in ore2Grade is 21.37%, CaCO3Content is 17.83%, and silicon contains
Amount is 21.75%.Material phase analysis shows in the ore that valuable mineral is mainly fluorite, a small amount of sulphide ore of association, and impurity is mainly
The mineral such as quartz, calcite, feldspar and silicate.
2. operating procedure and technical conditions
Mineral are crushed to 8mm or less；The mineral after fine crushing in step 1 are sieved using 3mm and 6mm vibrating screen,
3mm or less product enters in ball-grinding machine, and 3mm or more product carries out 6mm screening, and 6mm or more product makees the discarding of tailing 1.Ball
- 200 mesh of product requirement after mill accounts for 80~85%, then enters in floatation equipment, keeps pH values of pulp 8~9, it is opposite to mine according to
Secondary addition 1200g/t sodium carbonate (mass fraction 10%), 1000g/t waterglass (mass fraction 10%), 800g/t oleic acid
(mass fraction 10%) carries out roughing operation, obtains rougher concentration and rougher tailings.Rougher tailings be added inhibitor waterglass into
Row scans operation three times, and waterglass mass fraction is 10%, and scavenger concentrate successively returns to subjob, scans tailing and enters next time
Operation is scanned, true tailings is generated.Carbonic acid calcium inhibitors hydrochloric acid is added in rough concentrate and carries out five selected operations, hydrochloric acid quality point
Number is 5%, and selected chats successively returns in order, the final fluorite concentrate for obtaining qualified grade, flotation results such as 1 institute of table
Show.Selected hydrochloric acid dosage and to scan waterglass dosage as follows:
The new process flotation results of the present invention of table 1
Comparative example 1
1. raw mineral materials:
Take Hunan fluorite ore mountain plateau ore, CaF in ore2Grade is 30.19%, CaCO3Content is 15.83%, and silicon contains
Amount is 21.75%.Material phase analysis shows in the ore that valuable mineral is mainly fluorite, a small amount of sulphide ore of association, and impurity is mainly
The mineral such as quartz, calcite, feldspar and silicate.
2. operating procedure and technical conditions
Mineral are once milled to -200 mesh and account for 80~85%, are then entered in floatation equipment, keep pH values of pulp 8~9,
It is opposite to mine sequentially add 1200g/t sodium carbonate (mass fraction 10%), 1000g/t waterglass (mass fraction 10%),
800g/t oleic acid (mass fraction 10%) carries out roughing operation, obtains rougher concentration and rougher tailings.Rougher tailings, which is added, to be inhibited
Agent waterglass is scanned operation three times, and waterglass mass fraction is 10%, and scavenger concentrate successively returns to subjob, scans tail
Mine, which enters, scans operation next time, generates true tailings.Carbonic acid calcium inhibitors hydrochloric acid is added in rough concentrate and carries out five selected operations,
Salt acid mass fraction is 5%, and selected chats successively returns in order, the final fluorite concentrate for obtaining qualified grade, flotation knot
Fruit is as shown in table 2.Selected hydrochloric acid dosage and to scan waterglass dosage as follows:
Table 2 arranges calcium technique flotation results without gradation sizing
It should be understood by those ordinary skilled in the art that: the above is only a specific embodiment of the present invention, and
It is not used in the limitation present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done,
It should be included within protection scope of the present invention.
Claims (10)
1. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate, which comprises the steps of:
(1) mineral are crushed to 8mm or less；
(2) mineral after fine crushing in step 1 are sieved using 3mm vibrating screen, 3mm or less product ore grinding to -200 mesh with
Under account for 80%~85%, 3mm or more product makees tailing discarding；
(3) product in step (2) after ore grinding sequentially adds pH activator sodium carbonate, inhibitor waterglass, collecting agent and carries out slightly
Choosing keeps pH values of pulp 8~9, obtains rougher concentration and rougher tailings；
(4) inhibitor waterglass is added in rougher tailings in step (3) to carry out scanning operation generation true tailings；
(5) the selected operation of inhibitor hydrochloric acid progress is added in rougher concentration in step (3) and finally obtains fluorite concentrate.
2. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 1, it is characterised in that:
In step (1), the mineral are calcium carbonate type fluorite ore, CaF2Grade > 10%, CaCO3Grade > 15%.
3. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 1, it is characterised in that:
In step (1), 3mm or more product is sieved using 6mm vibrating screen, and 3~6mm is back in step (1), 6mm or more product
Make tailing discarding.
4. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 3, it is characterised in that:
In step (3), collecting agent is selected from least one of oleic acid, saponification oleic acid, sulfonated oleic acid.
5. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 3, it is characterised in that:
In step (3), the collector dosage is relative to being 500~1500g/t to mine additional amount, and the waterglass dosage is relative to giving
Mine additional amount is 800~3000g/t, and the sodium carbonate amount is 500~2000g/t relative to mine additional amount is given.
6. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 3, it is characterised in that:
In step (3), the collecting agent mass fraction is 5~10%, and the waterglass mass fraction is 5~15%, the sodium carbonate
Mass fraction is 5~20%；
In step (5), the salt acid mass fraction is 5~10%.
7. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 3, it is characterised in that:
In step (4), scan number be 1~3 time, scan every time in inhibitor waterglass dosage relative to mine additional amount be 0~
300g/t。
8. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 7, it is characterised in that:
In step (4), scanning number is 3 times, and scavenger concentrate successively returns to last time and scans operation, scans tailing and enters and scans work next time
Industry generates true tailings.
9. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 3, it is characterised in that:
In step (5), concentration times be 5~8 times, every time it is selected in inhibitor hydrochloric acid dosage relative to mine additional amount be 50~
200g/t。
10. a kind of fluorite floatation process of gradation sizing walkthrough calcium carbonate according to claim 9, feature exist
In: in step (5), concentration times are 5 times, and selected chats successively returns to last time selected operation, finally obtains fluorite concentrate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402895.4A CN110013913B (en) | 2019-05-15 | 2019-05-15 | Fluorite combined flotation process for classifying and screening pre-discharged calcium carbonate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910402895.4A CN110013913B (en) | 2019-05-15 | 2019-05-15 | Fluorite combined flotation process for classifying and screening pre-discharged calcium carbonate |
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| CN110013913B CN110013913B (en) | 2021-06-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110560257A (en) * | 2019-09-17 | 2019-12-13 | 长沙三博矿业科技有限公司 | Beneficiation method for recovering associated fluorite from multi-metal tailings |
| CN111330740A (en) * | 2020-03-05 | 2020-06-26 | 中南大学 | Method for improving flotation separation efficiency of magnesium-containing layered silicate minerals and copper sulfide minerals |
| CN113522517A (en) * | 2021-07-15 | 2021-10-22 | 中化地质矿山总局地质研究院 | Fluorite ore beneficiation method |
| CN114100843A (en) * | 2021-11-02 | 2022-03-01 | 湖南有色郴州氟化学有限公司 | Low-grade fluorite carbon reduction and quality improvement method |
| CN114602644A (en) * | 2022-03-14 | 2022-06-10 | 中国地质科学院郑州矿产综合利用研究所 | Regrinding and sorting method for high-grade middling of fluorite ore |
| CN114618649A (en) * | 2022-03-21 | 2022-06-14 | 中南大学 | Method for selecting ore enrichment platinum group metal from spent automobile catalyst |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111330740A (en) * | 2020-03-05 | 2020-06-26 | 中南大学 | Method for improving flotation separation efficiency of magnesium-containing layered silicate minerals and copper sulfide minerals |
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| CN114602644A (en) * | 2022-03-14 | 2022-06-10 | 中国地质科学院郑州矿产综合利用研究所 | Regrinding and sorting method for high-grade middling of fluorite ore |
| CN114602644B (en) * | 2022-03-14 | 2023-08-18 | 中国地质科学院郑州矿产综合利用研究所 | Regrinding and sorting method for fluorite ore high-grade middlings |
| CN114618649A (en) * | 2022-03-21 | 2022-06-14 | 中南大学 | Method for selecting ore enrichment platinum group metal from spent automobile catalyst |
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