CN104785376B - Nickel sulfide ore flotation inhibiting-dispersing agent and preparation method thereof - Google Patents
Nickel sulfide ore flotation inhibiting-dispersing agent and preparation method thereof Download PDFInfo
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- CN104785376B CN104785376B CN201510156459.5A CN201510156459A CN104785376B CN 104785376 B CN104785376 B CN 104785376B CN 201510156459 A CN201510156459 A CN 201510156459A CN 104785376 B CN104785376 B CN 104785376B
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- dispersant
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Abstract
The invention provides a magnesium silicate gangue inhibiting-dispersing agent of a nickel sulfide ore flotation system, which comprises the following components in parts by weight: 10-20 parts of a trigonella glue; 2-10 parts of phosphate. The preparation method comprises the following steps: 1) weighing 10-20 parts of the trigonella glue and 2-10 parts of the phosphate by weight, adding into 1200-3000 parts of an aqueous medium, and stirring for fully dissolving; 2) heating and stirring the product obtained in the step 1) until a high-viscosity mixed solution is formed, and controlling the mass sum of the trigonella glue and the phosphate to be 1-2% of the total mass of the mixed solution to obtain the cucurbitacin gum. The medicament has good selectivity, small dosage and remarkable effect of inhibiting dispersion.
Description
Technical field
The invention belongs to nickel sulfide ore flotation field, and in particular to nickel sulfide ore flotation suppression-dispersant and its preparation side
Method, more particularly relates to the nickel sulfide ore flotation of gangue containing magnesium silicate suppression-dispersant and preparation method thereof.
Technical background
The characteristics of there are " lean ore is more, and rich ore, easy ore dressing are few " in Mineral Resources in China.Talcum, chlorite, pyroxene, hornblend,
The larger common feature as most domestic nickel sulfide ore/molybdenite of the magnesium silicate gangue mineral content such as kaolinite.Flotation
It is to improve the important technical that such sulphide ore utilizes level, in Mineral Floating Process, is usually added into regulator to regulate and control
The physicochemical properties of mineral surfaces, to expand the floatability difference of various mineral, realize effective sorting of mineral, wherein pressing down
Essential system-dispersant is also study hotspot.Magnesium silicate gangue mineral or easy argillization or native floatability are fabulous, make vulcanization
Nickel minerals/molybdenite thing flotation is by extreme influence, and ore dressing suppression-dispersant dosage is big, and sorting index is low, impurity content in concentrate
It is exceeded.It is conventional suppression-dispersant such as waterglass, modified corn starch, sodium alginate, sodium hexametaphosphate and tannic acid, wooden
The selective depression effect such as plain sodium sulfonate, carboxymethyl cellulose, sodium humate, tannin extract is poor.
It would therefore be highly desirable to develop, a kind of drug metering is low, suppress the good suppression-dispersant of efficiency high, sorting index.
The content of the invention
In view of the shortcomings of the prior art, this patent first purpose is to provide a kind of nickel sulfide ore flotation system magnesium silicate
Gangue suppression-dispersant, selective depression easily floats magnesium silicate mineral in sulfide flotation, reaches that dosing is low, selects
Property suppress efficiency high, the good application effect of sorting index.Experimental study shows, this patent product is to content more than 20%, naturally may be used
The best magnesium silicate mineral talc of buoyancy has reached effective suppression purpose.Suppression-the dispersant, by weight, including
Following component：
10~20 parts of Fenugreek Polysaccharides glue；
2~10 parts of phosphate；
The phosphate is one kind in hexa metaphosphoric acid calcium, sodium hexametaphosphate, magnesium pyrophosphate.
It is preferred that, the suppression-dispersant, by weight, including following component：
10~15 parts of Fenugreek Polysaccharides glue；
5~10 parts of phosphate；
The phosphate is one kind in hexa metaphosphoric acid calcium, magnesium pyrophosphate.
As shown in one embodiment of the present of invention, suppression dispersant of the invention is only the 60% of conventional reagent consumption, but
But nickel grade 6.5%, nickel recovery 85%, the nickel ore concentrate of content of magnesia only 6% can be obtained, suppresses dispersion effect very aobvious
Write.
It is worthy of note that, restriction of the present invention to Fenugreek Polysaccharides glue and phosphate amount ranges only can be achieved on most
The good effect better than available reagent, if those skilled in the art should be understood only realize the effect of available reagent, the consumption
Scope can be not limited to the restriction of the present invention.
The magnesium silicate gangue is at least one of talcum, chlorite, olivine, pyroxene, tremolite.
Second object of the present invention is the method that offer prepares above-mentioned suppression-dispersant, and this method includes following step
Suddenly：
1）By weight, 10~20 parts of Fenugreek Polysaccharides glue is weighed, 2~10 parts of phosphate, then add 1200~
In 3000 parts of aqueous medium, stirring fully dissolving；
2）To step 1）Gains carry out heating stirring, until in high viscosity mixed liquor, control Fenugreek Polysaccharides glue and phosphorus
The quality of hydrochlorate and the 1-2% for accounting for mixed liquor gross mass, are produced；The phosphate is hexa metaphosphoric acid calcium, sodium hexametaphosphate, Jiao
One kind in magnesium phosphate.
It is preferred that, the step 2）In, heating-up temperature is 80-90 DEG C, and mixing time is 0.2-0.5 h.
It is preferred that, this method comprises the following steps：
1）By weight, 10~15 parts of Fenugreek Polysaccharides glue is weighed, 5~10 parts of phosphate, then add 1500~
In 2500 aqueous medium, stirring fully dissolving；
2）To step 1）Gains carry out heating stirring, until in high viscosity mixed liquor, control Fenugreek Polysaccharides glue and phosphorus
The quality of hydrochlorate and the 1-2% for accounting for mixed liquor gross mass, are produced；The phosphate is one in hexa metaphosphoric acid calcium, magnesium pyrophosphate
Kind.
It is preferred that, the step 2）In, heating-up temperature is 80-90 DEG C, and mixing time is 0.2-0.5 h.
Beneficial effects of the present invention：
1st, suppression-dispersant of the invention, notable to the suppression dispersion effect of the magnesium silicate gangue of nickel sulfide ore, it is sent out
The suppression shot and dispersion effect, which are more than, is used alone both effects；
2nd, using suppression-dispersant of the present invention, in flotation, the scattered effect of efficient suppression just can be realized with a small amount of dosage
Really, flotation selectivity is substantially increased；
3rd, suppression-dispersant of the invention is cheap, and preparation method is simple, is with a wide range of applications.
Embodiment
Embodiment is given below so that the invention will be further described.It is necessarily pointed out that following examples can not
Be interpreted as limiting the scope of the invention, if the person skilled in the art in the field according to the invention described above content to this hair
It is bright to make some nonessential modifications and adaptations, still fall within the scope of the present invention.
Embodiment 1
1）By weight, 10 parts of Fenugreek Polysaccharides glue, the water of 2 parts of hexa metaphosphoric acid calcium, then 1200 parts of addition are weighed
In medium, stirring fully dissolving；
2）To step 1）Gains carry out heating stirring, and heating-up temperature is 80 DEG C, and mixing time is 0.5 h, until in height
Viscosity mixed liquor, controls the quality of Fenugreek Polysaccharides glue and hexa metaphosphoric acid calcium and accounts for the 1% of mixed liquor gross mass, produce.
Embodiment 2
1）By weight, 20 parts of Fenugreek Polysaccharides glue is weighed, then 10 parts of sodium hexametaphosphate adds 3000 parts
In aqueous medium, stirring fully dissolving；
2）To step 1）Gains carry out heating stirring, and heating-up temperature is 90 DEG C, and mixing time is 0.2 h, until in height
Viscosity mixed liquor, controls the quality of Fenugreek Polysaccharides glue and sodium hexametaphosphate and accounts for the 2% of mixed liquor gross mass, produce.
Embodiment 3
1）By weight, 15 parts of Fenugreek Polysaccharides glue is weighed, then 5 parts of magnesium pyrophosphate adds 2500 parts of aqueous mediums
In, stirring fully dissolving；
2）To step 1）Gains carry out heating stirring, and heating-up temperature is 85 DEG C, and mixing time is 0.3 h, until in height
Viscosity mixed liquor, controls the quality of Fenugreek Polysaccharides glue and magnesium pyrophosphate and accounts for the 1.5% of mixed liquor gross mass, produce.
Embodiment 4
1）By weight, 13 parts of Fenugreek Polysaccharides glue, the aqueous medium of 8 parts of magnesium pyrophosphate, then 1500 parts of addition are weighed
In, stirring fully dissolving；
2）To step 1）Gains carry out heating stirring, and heating-up temperature is 85 DEG C, and mixing time is 0.3 h, until in height
Viscosity mixed liquor, controls the quality of Fenugreek Polysaccharides glue and magnesium pyrophosphate and accounts for the 1.5% of mixed liquor gross mass, produce.
Test example 1
Flotation is carried out to low-grade nickel sulfide ores using suppression-dispersant of embodiment 1.
Certain low-grade nickel sulfide ores, gangue mineral is based on talcum, and mineral quantity is up to 30%, next to that chlorite, sudden strain of a muscle
The magnesium silicate mineral such as stone, olivine, pyroxene.Raw ore nickeliferous 0.79%, is -200 mesh in mog containing magnesia 27.1%
When content accounts for 75%, roughing add the embodiment of the present invention 1 suppression-dispersant 300g/t and corresponding activator, collecting agent, rise
Infusion, one roughing can obtain the rough concentrate of nickeliferous 2.78%, nickel recovery 81% or so, nickel rough concentrate again through triple cleaning,
Suppression-dispersant 100g/t of embodiments of the invention 1 is added, concentrate nickel grade is improved to 6.5%.One roughing, sweep twice
Choosing, the flotation closed-circuit test of triple cleaning obtain nickel grade 6.5%, nickel recovery 85%, the nickel ore concentrate of content of magnesia only 6%.
Comparative experimental example 1
In addition to suppression-dispersant of the present invention is replaced with into Fenugreek Polysaccharides glue, remaining is completely the same with test example 1.
Result of the test：One roughing, scan twice, the flotation closed-circuit test of triple cleaning obtains nickel grade 5.5%, nickel recovery 72%,
Content of magnesia is 8% nickel ore concentrate.
Comparative experimental example 2
In addition to suppression-dispersant of the present invention is replaced with into sodium hexametaphosphate, remaining is completely the same with test example 1.
Result of the test：One roughing, scan twice, the flotation closed-circuit test of triple cleaning obtains nickel grade 5.0%, nickel recovery 70%,
Content of magnesia is 9.2% nickel ore concentrate.
Comparative experimental example 3
In addition to suppression-dispersant of the present invention is replaced with into magnesium pyrophosphate, remaining is completely the same with test example 1.Experiment
As a result：One roughing, scan twice, the flotation closed-circuit test of triple cleaning obtains nickel grade 5.1%, nickel recovery 69.5%, oxygen
Change the nickel ore concentrate that content of magnesium is 9%.
Comparative experimental example 4
In addition to suppression-dispersant of the present invention is replaced with into waterglass, remaining is consistent with test example 1.In mog
When accounting for 75% for -200 mesh contents, roughing adds inhibitor waterglass 1500g/t and corresponding activator, collecting agent, foaming agent,
Nickel rough concentrate adds waterglass 500g/t again through triple cleaning.Final one roughing, scan twice, the flotation of triple cleaning is closed
The examination of road tests acquisition nickel grade 5.8%, the nickel ore concentrate of nickel recovery only 65%, illustrates that the selective depression effect of waterglass is poor, and uses
Amount is larger.
Claims (7)
1. a kind of nickel sulfide ore flotation system magnesium silicate gangue suppression-dispersant, it is characterised in that：The nickel sulfide ore flotation
System magnesium silicate gangue suppression-dispersant, is following component by weight：
10~20 parts of Fenugreek Polysaccharides glue；
2~10 parts of phosphate；
Water；
Wherein, Fenugreek Polysaccharides glue and phosphatic quality and the 1-2% for accounting for the suppression-dispersant gross mass；Surplus is water；
The phosphate is one kind in hexa metaphosphoric acid calcium, sodium hexametaphosphate, magnesium pyrophosphate；
Content of magnesia is more than 20% in the nickel sulfide ore；
The nickel sulfide ore flotation system magnesium silicate gangue suppression-dispersant when in use, the addition in rougher process
For 300g/t, the addition in refining process is 100g/t.
2. nickel sulfide ore flotation system magnesium silicate gangue suppression-dispersant according to claim 1, it is characterised in that
The nickel sulfide ore flotation system magnesium silicate gangue suppression-dispersant, is following component by weight：
10~15 parts of Fenugreek Polysaccharides glue；
5~10 parts of phosphate；
Water；
Wherein, Fenugreek Polysaccharides glue and phosphatic quality and the 1-2% for accounting for the suppression-dispersant gross mass；Surplus is water；
The phosphate is one kind in hexa metaphosphoric acid calcium, sodium hexametaphosphate, magnesium pyrophosphate.
3. nickel sulfide ore flotation system magnesium silicate gangue suppression-dispersant according to claim 1, it is characterised in that
The magnesium silicate gangue is at least one of talcum, pyroxene, chlorite, tremolite.
4. preparing nickel sulfide ore flotation system magnesium silicate gangue suppression-dispersant as described in claim any one of 1-3
Method, it is characterised in that methods described comprises the following steps：
1) 10~20 parts of Fenugreek Polysaccharides glue by weight, is weighed, then 2~10 parts of phosphate add 1200~3000 parts
Aqueous medium in, stirring fully dissolving；
2) to step 1) gains carry out heating stirring, until in high viscosity mixed liquor, controlling Fenugreek Polysaccharides glue and phosphate
Quality and account for the 1-2% of mixed liquor gross mass, produce；
The phosphate is one kind in hexa metaphosphoric acid calcium, sodium hexametaphosphate, magnesium pyrophosphate.
5. method according to claim 4, it is characterised in that methods described comprises the following steps：
1) 10~15 parts of Fenugreek Polysaccharides glue by weight, is weighed, then 5~10 parts of phosphate add 1500~2500 parts
Aqueous medium in, stirring fully dissolving；
2) to step 1) gains carry out heating stirring, until in high viscosity mixed liquor, controlling Fenugreek Polysaccharides glue and phosphate
Quality and account for the 1-2% of mixed liquor gross mass, produce；
The phosphate is one kind in hexa metaphosphoric acid calcium, sodium hexametaphosphate, magnesium pyrophosphate.
6. method according to claim 4, it is characterised in that the step 2) in, heating-up temperature is 80-90 DEG C, stirring
Time is 0.2-0.5h.
7. method according to claim 5, it is characterised in that the step 2) in, heating-up temperature is 80-90 DEG C, stirring
Time is 0.2-0.5h.
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| CN201510156459.5A CN104785376B (en) | 2015-04-03 | 2015-04-03 | Nickel sulfide ore flotation inhibiting-dispersing agent and preparation method thereof |
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Families Citing this family (5)
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| CN105344494B (en) * | 2015-12-08 | 2018-01-16 | 中南大学 | The beneficiation method of low-grade copper sulfide ores under a kind of low alkalinity |
| CN106391326B (en) * | 2016-10-27 | 2019-02-26 | 江西理工大学 | A method of chalcopyrite and talcum are separated using tragacanth |
| CN106824548B (en) * | 2017-02-27 | 2020-07-10 | 中国地质科学院矿产综合利用研究所 | Flotation dispersing agent suitable for high-talc-content copper-nickel sulfide ore and preparation method thereof |
| CN113477408B (en) * | 2021-07-21 | 2022-08-02 | 东北大学 | Application of curdlan serving as inhibitor in iron ore reverse flotation in mineral processing field and application method |
| CN115318446B (en) * | 2022-08-05 | 2024-04-12 | 中国地质科学院矿产综合利用研究所 | Flotation reagent system for refractory low-grade nickel-cobalt sulfide ores and application thereof |
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| CA2880395A1 (en) * | 2014-01-31 | 2015-03-23 | Marcus Tomlinson | Process for separation of at least one metal sulfide from a mixed sulfide ore or concentrate |
| CN104084314A (en) * | 2014-07-03 | 2014-10-08 | 四川省地质矿产勘查开发局成都综合岩矿测试中心 | Gangue inhibitor for flotation of high-magnesium and low-nickel polymetallic ores |
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