CN109772590A - A kind of collecting agent of magnesite flotation decalcification and its application - Google Patents
A kind of collecting agent of magnesite flotation decalcification and its application Download PDFInfo
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- CN109772590A CN109772590A CN201910213019.7A CN201910213019A CN109772590A CN 109772590 A CN109772590 A CN 109772590A CN 201910213019 A CN201910213019 A CN 201910213019A CN 109772590 A CN109772590 A CN 109772590A
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Abstract
A kind of collecting agent of magnesite flotation decalcification and its application, are related to the collecting agent field of FLOTATION SEPARATION.Sample ore to be processed with water is that 1:8~10 mix by a kind of application of magnesite flotation decalcification collecting agent in mass ratio, stirring adjustment slurry pH 10~12 of sizing mixing；The mass ratio of addition inhibitor calgon, the inhibitor and sample ore to be processed is 200~300g:1t；Collecting agent is added into ore pulp, the collecting agent is compounded by the component of following mass fraction: fatty acid soaps 95.0%~99.0%；Emulsifier 1.0%~5.0%；The mass ratio of the collecting agent and sample ore to be processed is 1000~1200g:1t；Flotation after stirring 2min, flotation time are 4~5min.Collector dosage of the present invention is relatively fewer, foaming abundancy, uniformly, pharmacy security is nontoxic, not will cause environmental pollution, and process for preparation is simple, and raw material is cheap and easy to get, and method is simple and easy to control.
Description
Technical field
The present invention relates to a kind of collecting agent of magnesite flotation decalcification and its applications, and in particular to the collecting of FLOTATION SEPARATION
Agent technical field.
Technical background
Magnesite is one of the Dominant Mineral Resources in China, is widely used in metallurgy, aerospace, automobile, electronics work
The fields such as journey, construction material.Magnesite can be divided into high-grade magnesite and low-grade magnesite.However as China to magnesite
Resource adopts the rich development for abandoning poor extensive mining method, and the high-quality magnesite resource in China is reduced increasingly, low-quality magnesite
Mine is largely abandoned, and the serious wasting of resources is not only caused, and storage also takes up soil, also serious while bringing security risk
Destroy ecological environment.Therefore the grade for promoting low-grade magnesite makes low-quality magnesite can apply to high-grade magnesia product
The mineral processing technology of production is to promote an important channel of high-grade magnesia product quality from raw mineral materials source from now on.So
Seek to realize the method that low-grade magnesite mentions magnesium drop calcium, have to realization low-grade magnesite comprehensive utilization especially important existing
Sincere justice.
Currently, floatation is that purification giobertite is most effective, most widely used in numerous methods for sorting magnesite
One of method.However the FLOTATION SEPARATION of high-calcium type magnesite resource is always the key points and difficulties of magnesite ore dressing.After all
It is because the structure of dolomite and magnesite crystal is close, solubility is big, and traditional collecting agent enuatrol bad dispersibility, to temperature
It spends bad adaptability or floatation indicators stability is poor, so the rate of recovery of gained magnesite concentrate is low in production, grade is also difficult
To be promoted.Therefore, develop a kind of pair of high-calcium type magnesite flotation have special efficacy and consumption it is few, it is at low cost, strong to thermal adaptability,
And can be enriched with to obtain the collecting agent of high-grade magnesite, there is important meaning to realization low-grade magnesite comprehensive utilization of resources
Justice.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide that a kind of dosage is few, collecting ability
By force and can significantly improve magnesite and gangue mineral dolomite floatation indicators collecting agent, and accordingly provide and caught using this
Receive the method that agent carries out magnesite flotation decalcification.
Technical solution proposed by the present invention are as follows:
A kind of collecting agent of magnesite flotation decalcification, the collecting agent are compounded by the component of following mass fraction:
Fatty acid soaps 95.0%~99.0%；
Emulsifier 1.0%~5.0%.
In the collecting agent of above-mentioned Brick With Magnesite Purified By Flotation, the fatty acid soaps are preferably enuatrol.Selecting enuatrol is because of oil
Sour sodium is cheap and easy to get, and its collecting ability is strong, is the common collecting agent of industrial magnesite direct flotation decalcification.
Preferably, the emulsifier is Tween 80 or triton x-100.
Mass fraction of the emulsifier in collecting agent is preferably 1.0%~5.0%.
As a complete technical concept, the present invention also provides a kind of application of magnesite flotation decalcification collecting agent, institutes
The method of stating comprises the following steps that:
It with water is in mass ratio that 1:8~10 mix by sample ore to be processed, stirring of sizing mixing；Under normal temperature conditions, mine is adjusted
PH value is starched to 10~12；Inhibitor calgon is added, stirs evenly, the mass ratio of the inhibitor and sample ore to be processed
For 200~300g:1t；Collecting agent is added, the collecting agent is compounded by the component of following mass fraction: fatty acid soaps
95.0%~99.0%；Emulsifier 1.0%~5.0%；The mass ratio of the collecting agent and sample ore to be processed is 1000~
1200g:1t；Flotation after stirring 2min, flotation time are 4~5min.
Preferably, the sample ore to be processed is the composite ore of magnesite and dolomite, the quality of magnesite and dolomite
Than for 9:1, magnesite purity is 97.30%, dolomite purity is 96.82%.
Preferably, the sample ore to be processed is the composite ore of magnesite and dolomite, and magnesite, dolomite are taken from the Liao Dynasty
Ninghai city magnesite dressing plant.
Preferably, the granularity of the sample ore to be processed is 0.045mm~0.100mm.
Preferably, the fatty acid soaps are enuatrol, and the emulsifier is Tween 80 or triton x-100.
Preferably, the mixing speed is 1600~1992r/min.
In above-mentioned technical proposal, the preferably described pH adjuster is Na2CO3Solution.The method of the invention is to described
Na2CO3Solution has no particular/special requirement.
In above-mentioned technical proposal, the mass ratio of the inhibitor and sample ore to be processed is 200~300g:1t, that is, is inhibited
Agent dosage is 200~300g/t, refers to that the amount of calgon used in 1t sample ore to be processed is 200~300g；The collecting
The mass ratio of agent and sample ore to be processed is 1000~1200g:1t, i.e. the dosage of collecting agent is 1000~1200g/t, is referred to every
The amount of collecting agent used in sample ore 1t to be processed is 1000~1200g.
Further, in above-mentioned technical proposal, the preferably described mixing speed is 1992r/min；It is preferred that the pH value is
10.5；It is preferred that the inhibitor dosage is 250g/t；It is preferred that the collector dosage is 1200g/t；It is preferred that the flotation time
For 4min.
In all technical solutions of magnesite ore flotation decalcification method of the present invention preferably: by magnesite mine to be processed
Sample is that 1:8 is mixed with water in mass ratio.
Product, that is, tailing in flotation froth product, that is, concentrate and slot is respectively dried after flotation, weigh, calculates recycling
Rate simultaneously chemically examines grade.
Compared with traditional floatation process, the present invention has the advantages that collector dosage of the present invention is relatively fewer, foam is rich
It is rich, uniformly, and pharmacy security used is nontoxic, not will cause environmental pollution, for flotation high-quality magnesite provide it is more suitable
Suitable beneficiation reagent.In addition, collecting agent process for preparation of the present invention is simple, raw material is cheap and easy to get, and application method is also relatively easy, easy
Control.
Detailed description of the invention
Fig. 1 is the process flow chart of magnesite flotation decalcification described in the embodiment of the present invention.
Specific embodiment
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
Test method described in following embodiments is unless otherwise specified conventional method；The reagent and material, such as
Without specified otherwise, commercially obtain.
Magnesite, dolomite in following embodiments are taken from Haicheng magnesite dressing plant, the sample grain of preparation
Degree is -0.100+0.045mm (referring to sample granularity in 0.045mm between 0.100mm), magnesite, dolomite purity difference
It is 97.30%, 96.82%.
The purity of magnesite and dolomite refers in the present invention: the assay office of MgO obtains grade in magnesite and dolomite
With the percentage of theoretical grade.
Its calculation formula is:
Following XFGII-5 type hanging trough flotators used in the examples are purchased from Jilin Province Prospect Machinery Plant.
Embodiment 1
(1) at 25 DEG C of room temperature, magnesite and dolomite that mass ratio is 9:1 are configured to sample ore to be processed, and claim
The sample ore for taking 3g to be processed is put into flotation cell, deionized water is added, wherein the mass ratio of sample ore and deionized water to be processed is
1:8；It using hanging trough flotator, under conditions of 1992r/min, sizes mixing and stirs 2min, pH regulator is then added into ore pulp
Na2CO3Slurry pH is adjusted to 10.5, continues that inhibitor calgon, stirring of then sizing mixing is added after stirring 2min
2min, wherein the dosage of the inhibitor is 250g/t；
(2) after sizing mixing, collecting agent is added, added collecting agent is the combined capturing and collecting agent (1200g/t) of Tween 80 and enuatrol,
Wherein the mass ratio of emulsifier and enuatrol is 1:99.Flotation, flotation time 4min are carried out after stirring 2min.After flotation
It to froth pulp, that is, concentrate drying, weighs, and sample examination grade, calculates the rate of recovery.In concentrate MgO grade be 45.45%,
The MgO rate of recovery be 83.81%, CaO grade be 1.84%, the CaO rate of recovery is 36.41%.
Embodiment 2
(1) identical as step (1) reaction condition in embodiment 1；
(2) after sizing mixing, collecting agent is added, added collecting agent is the combined capturing and collecting agent (1200g/t) of Tween 80 and enuatrol,
Wherein the mass ratio of emulsifier and enuatrol is 3:97.Flotation, flotation time 4min are carried out after stirring 2min.After flotation
It to froth pulp, that is, concentrate drying, weighs, and sample examination grade, calculates the rate of recovery.In concentrate MgO grade be 45.56%,
The MgO rate of recovery be 76.22%, CaO grade be 1.54%, the CaO rate of recovery is 27.44%.
Embodiment 3
(1) identical as step (1) reaction condition in embodiment 1；
(2) after sizing mixing, collecting agent is added, added collecting agent is the combined capturing and collecting agent (1200g/t) of Tween 80 and enuatrol,
Wherein the mass ratio of emulsifier and enuatrol is 1:19.Flotation, flotation time 4min are carried out after stirring 2min.After flotation
It to froth pulp, that is, concentrate drying, weighs, and sample examination grade, calculates the rate of recovery.In concentrate MgO grade be 45.73%,
The MgO rate of recovery be 69.21%, CaO grade be 1.29%, the CaO rate of recovery is 20.93%.
Embodiment 4
(1) identical as step (1) reaction condition in embodiment 1；
(2) after sizing mixing, collecting agent is added, added collecting agent is the combined capturing and collecting agent of triton x-100 and enuatrol
(1200g/t), wherein the mass ratio of triton x-100 and enuatrol is 1:99.Flotation is carried out after stirring 2min, flotation time is
4min.Froth pulp, that is, concentrate is dried after flotation, weighing, and sample examination grade, calculates the rate of recovery.MgO in concentrate
Grade is 46.15%, the MgO rate of recovery be 81.19%, CaO grade be 1.45%, the CaO rate of recovery is 27.52%.
Embodiment 5
(1) identical as step (1) reaction condition in embodiment 1；
(2) after sizing mixing, collecting agent is added, added collecting agent is the combined capturing and collecting agent of triton x-100 and enuatrol respectively
(1200g/t), wherein the mass ratio of triton x-100 and enuatrol is 3:97.Flotation is carried out after stirring 2min, flotation time is
4min.Froth pulp, that is, concentrate is dried after flotation, weighing, and sample examination grade, calculates the rate of recovery.MgO in concentrate
Grade is 46.38%, the MgO rate of recovery be 72.37%, CaO grade be 1.31%, the CaO rate of recovery is 21.96%.
Embodiment 6
(1) identical as step (1) reaction condition in embodiment 1；
(2) after sizing mixing, collecting agent is added, added collecting agent is the combined capturing and collecting agent of triton x-100 and enuatrol
(1200g/t), wherein the mass ratio of triton x-100 and enuatrol is 1:19.Flotation is carried out after stirring 2min, flotation time is
4min.Froth pulp, that is, concentrate is dried after flotation, weighing, and sample examination grade, calculates the rate of recovery.MgO in concentrate
Grade is 46.70%, the MgO rate of recovery be 64.71%, CaO grade be 1.07%, the CaO rate of recovery is 16.05%.
Comparative example 1
(1) at 25 DEG C of room temperature, magnesite and dolomite that mass ratio is 9:1 are configured to sample ore to be processed, and claim
The sample ore for taking 3g to be processed is put into flotation cell, deionized water is added, wherein the mass ratio of sample ore and deionized water to be processed is
1:8；It using hanging trough flotator, under conditions of 1992r/min, sizes mixing and stirs 2min, pH regulator is then added into ore pulp
Na2CO3Slurry pH is adjusted to 10.5, continues that inhibitor calgon, stirring of then sizing mixing is added after stirring 2min
2min, wherein the dosage of the inhibitor is 250g/t；
(2) after sizing mixing, collecting agent is added, the enuatrol of 1200g/t is added, sizes mixing and carries out flotation, flotation after stirring 2min
Time is 4min.Froth pulp, that is, concentrate is dried after flotation, weighing, and sample examination grade, calculates the rate of recovery.Flotation
In concentrate afterwards MgO grade be 44.88%, the MgO rate of recovery be 88.11%, CaO grade be 1.92%, the CaO rate of recovery is
39.45%.
By the test data of above embodiments test it is found that carrying out flotation phase with enuatrol is used alone as collecting agent
Than combined capturing and collecting agent can be obviously improved MgO grade in concentrate in the present invention, reduce CaO grade, obtain high-grade magnesite
Product.
Claims (9)
1. a kind of collecting agent of magnesite flotation decalcification, which is characterized in that the collecting agent is answered by the component of following mass fraction
With forming:
Fatty acid soaps 95.0%~99.0%；
Emulsifier 1.0%~5.0%.
2. collecting agent according to claim 1, which is characterized in that the fatty acid soaps are enuatrol.
3. collecting agent according to claim 1, which is characterized in that the emulsifier is Tween 80 or triton x-100.
4. a kind of application of magnesite flotation decalcification collecting agent, which is characterized in that be in mass ratio with water by sample ore to be processed
1:8~10 is mixed, stirring of sizing mixing；Under normal temperature conditions, slurry pH is adjusted to 10~12；Inhibitor calgon is added,
It stirs evenly, the mass ratio of the inhibitor and sample ore to be processed is 200~300g:1t；Collecting agent, the collecting agent is added
It is compounded by the component of following mass fraction: fatty acid soaps 95.0%~99.0%；Emulsifier 1.0%~5.0%；It is described to catch
The mass ratio for receiving agent and sample ore to be processed is 1000~1200g:1t；Flotation after stirring 2min, flotation time are 4~5min.
5. application according to claim 4, which is characterized in that the sample ore to be processed is the mixed of magnesite and dolomite
The mass ratio of conjunction mine, magnesite and dolomite is 9:1, and magnesite purity is 97.30%, and dolomite purity is 96.82%.
6. application according to claim 4, which is characterized in that the sample ore to be processed is the mixed of magnesite and dolomite
Mine is closed, magnesite, dolomite are taken from Haicheng magnesite dressing plant.
7. application according to claim 4, which is characterized in that the granularity of the sample ore to be processed be 0.045mm~
0.100mm。
8. application according to claim 4, which is characterized in that the fatty acid soaps are enuatrol, and the emulsifier is to spit
Temperature 80 or triton x-100.
9. application according to claim 4, which is characterized in that the mixing speed is 1600~1992r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910213019.7A CN109772590B (en) | 2019-03-20 | 2019-03-20 | Collecting agent for flotation decalcification of magnesite and application thereof |
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| CN201910213019.7A CN109772590B (en) | 2019-03-20 | 2019-03-20 | Collecting agent for flotation decalcification of magnesite and application thereof |
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| CN110302904A (en) * | 2019-06-28 | 2019-10-08 | 武汉理工大学 | A kind of method of high-grade basic magnesium carbonate mine drop calcium purification |
| CN110575911A (en) * | 2019-10-22 | 2019-12-17 | 湖北富邦新材料有限公司 | High-calcium magnesite flotation collector |
| CN111215251A (en) * | 2020-03-11 | 2020-06-02 | 武汉工程大学 | Dolomite inhibitor and use method thereof |
| CN114160313A (en) * | 2021-12-06 | 2022-03-11 | 中南大学 | Lepidolite flotation collector and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110302904A (en) * | 2019-06-28 | 2019-10-08 | 武汉理工大学 | A kind of method of high-grade basic magnesium carbonate mine drop calcium purification |
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| CN114160313A (en) * | 2021-12-06 | 2022-03-11 | 中南大学 | Lepidolite flotation collector and application thereof |
| CN114160313B (en) * | 2021-12-06 | 2023-01-24 | 中南大学 | Lepidolite flotation collector and application thereof |
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