CN104128263A - Inhibitor for talc and serpentine and beneficiation method using inhibitor - Google Patents
Inhibitor for talc and serpentine and beneficiation method using inhibitor Download PDFInfo
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- CN104128263A CN104128263A CN201410331613.3A CN201410331613A CN104128263A CN 104128263 A CN104128263 A CN 104128263A CN 201410331613 A CN201410331613 A CN 201410331613A CN 104128263 A CN104128263 A CN 104128263A
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Abstract
The invention discloses an inhibitor of talc and serpentine and a beneficiation method using the inhibitor, wherein the inhibitor is prepared by mixing the following raw materials in percentage by weight: 50-80% of soluble carbonate and 20-50% of soluble sulfate without copper ions; the beneficiation method using the inhibitor comprises the step of adding the inhibitor into ore pulp, wherein the adding proportion of the inhibitor in the ore pulp is as follows: 2000-6000 g of the inhibitor is added to each ton of raw ore. The embodiment of the invention has strong adaptability, can meet the requirements of various flotation processes, and can effectively inhibit talc and serpentine under the condition of not generating an inhibiting effect on sulfide ores, so that the embodiment of the invention not only improves the quality of useful mineral concentrates and the recovery rate of the useful minerals, but also does not cause adverse effects on concentrate filtration and tailing concentration.
Description
Technical field
The present invention relates to technique of preparing field, relate in particular to the inhibitor of talcum and serpentine in a kind of sulphide ore and apply the beneficiation method of this inhibitor.
Background technology
Talcum and serpentine are the common useless mineral in sulphide ore mineral deposit.They have following features in sulphide ore:
The first, in Sulphide Ore, talcum and serpentine widely distributed; But in different Sulphide Ores, the content fluctuation of talcum and serpentine is larger, for example: in sulfuration molybdenum ore, copper-sulphide ores, nickel sulfide ore, copper nickel sulfide mineral, lead-zinc sulfide ore, all association has talcum and serpentine conventionally, but its content differs widely, few person is in 3% left and right, and many persons can be up to more than 30%.
The second, in floatation process, the floatability of talcum and serpentine often exceedes the floatability of the sulphide ore of association, and this brings very big negative effect to the flotation of sulphide ore, has significantly reduced the quality of valuable mineral concentrate in sulphide ore.
The 3rd, in floatation process, the easy argillization of talcum and serpentine, this is by severe exacerbation floatation indicators.
In the prior art, the ore-dressing technique of sulphide ore is selected macromolecule organic, waterglass, calgon or their combinations such as sodium carboxymethylcellulose (CMC), the guar gum inhibitor as talcum and serpentine conventionally, but these inhibitor also have inhibitory action to the valuable mineral in sulphide ore, therefore this has not only reduced the rate of recovery of concentrate grade and the valuable mineral of valuable mineral, and can filter and mine tailing is concentrated causes very large adverse effect to concentrate.
Summary of the invention
For above-mentioned weak point of the prior art, the invention provides the inhibitor of talcum and serpentine in a kind of sulphide ore and apply the beneficiation method of this inhibitor; Not only strong adaptability of this inhibitor, can meet the demand of various floatation process, and can sulphide ore not produced to effective talcum and serpentine of suppressing in inhibiting situation, therefore this inhibitor has not only improved the quality of valuable mineral concentrate and the rate of recovery of valuable mineral, and can not filter and the concentrated adverse effect that causes of mine tailing concentrate.
The object of the invention is to be achieved through the following technical solutions:
An inhibitor for talcum and serpentine, is mixed by the raw material of following percentage by weight: soluble carbonate salt 50%～80%, the not soluble sulphate 20%～50% of copper ions.
Preferably, the soluble sulphate of copper ions is not at least one in aluminum sulfate, zinc sulfate or ferrous sulfate.
Preferably, described soluble carbonate salt is sodium carbonate.
Preferably, in inhibitor, the percentage by weight of soluble carbonate salt is 60%, and the percentage by weight of the soluble sulphate of copper ions is not 40%.
Preferably, in inhibitor, the percentage by weight of soluble carbonate salt is 50%, and the percentage by weight of the soluble sulphate of copper ions is not 50%.
Preferably, the adding proportion of this inhibitor in ore pulp is: raw ore per ton adds 2000～6000 grams of these inhibitor.
A kind of beneficiation method, is included in the step of the interpolation inhibitor in ore pulp, and described inhibitor adopts the talcum described in technique scheme and the inhibitor of serpentine.
Preferably, the adding proportion of this inhibitor in ore pulp is: raw ore per ton adds 2000～6000 grams of these inhibitor.
The soluble sulphate of the soluble carbonate salt that the talcum that as seen from the above technical solution provided by the invention, the embodiment of the present invention provides and the inhibitor of serpentine are 50%～80 by percentage by weight and 20%～50% not copper ions mixes; The adding proportion of this inhibitor in ore pulp is: raw ore per ton adds 2000～6000 grams of these inhibitor.This inhibitor good water solubility, nontoxic, not only strong adaptability, operability are good, can meet the demand of various floatation process, and can sulphide ore not produced to effective talcum and serpentine of suppressing in inhibiting situation, therefore this inhibitor has not only improved the quality of valuable mineral concentrate and the rate of recovery of valuable mineral, and can not filter and the concentrated adverse effect that causes of mine tailing concentrate.
Detailed description of the invention
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to protection scope of the present invention.
First-selection it should be noted that, the talcum that the embodiment of the present invention provides and the inhibitor of serpentine are mainly applicable to the inhibitor as talcum and serpentine in the floatation process of sulphide ore, and other easily floating phyllosilicate gangues are also had to certain inhibitory action.The talcum respectively embodiment of the present invention being provided below and the inhibitor of serpentine and the beneficiation method of applying this inhibitor are described in detail respectively.
(1) inhibitor of talcum and serpentine
An inhibitor for talcum and serpentine, is mixed by the raw material of following percentage by weight: soluble carbonate salt 50%～80%, the not soluble sulphate 20%～50% of copper ions.
Wherein, soluble carbonate salt can comprise ammonium carbonate, potash or sodium carbonate, but preferably selects sodium carbonate.The soluble sulphate of copper ions does not refer to the soluble sulphate except copper sulphate, can comprise ammonium sulfate, potassium sulfate, calcium sulfate, sodium sulphate, magnesium sulfate, ferric sulfate, ferrous sulfate (for example: ferrous sulfate heptahydrate), aluminum sulfate or zinc sulfate, but preferably select at least one in aluminum sulfate, zinc sulfate or ferrous sulfate.
Particularly, in actual applications, the inhibitor of this talcum and serpentine preferably selects the component proportion in following table 1 to mix (numerical value in table 1 is percetage by weight):
Table 1:
| Proportioning mode one | 50%～80% sodium carbonate | 20%～50% aluminum sulfate |
| Proportioning mode two | 50%～80% sodium carbonate | 20%～50% zinc sulfate |
| Proportioning mode three | 50%～80% potash | 20%～50% ferrous sulfate heptahydrate |
| Proportioning mode four | 60% sodium carbonate | 40% zinc sulfate |
| Proportioning mode five | 50% sodium carbonate | 50% zinc sulfate |
Further, the principle of the inhibitor of this talcum and serpentine is as follows: talcum and serpentine are in grinding process, and surface can expose Ca
2+and Mg
2+; The SO that inhibitor can ionize out in ore pulp
4 2-and CO
3 2-, the Ca that can expose with talcum and serpentine surface
2+and Mg
2+react, generate respectively CaSO
4, MgSO
4, CaCO
3and MgCO
3thereby, reduce the surface potential of talcum and serpentine, make its surface hydrophilic and suppressed.Can not use the reason of the soluble sulphate of copper ions to be: the C in copper sulphate
u 2+the phyllosilicate gangues such as energy activated talc, serpentine; C in copper sulphate
u 2+with the Ca in these gangue lattices
2+, M
g 2+displacement reaction can occur, thereby can generate easily floating copper sulfide film of one decks on these gangues surface, the floatability enhancing that this makes these gangues, affects flotation.
It should be noted that, because this inhibitor is mixed by two kinds of good salt of solubility, therefore nontoxic, the good water solubility of this inhibitor, both can directly be used with solid form, also can be configured to the aqueous solution and use.The adding proportion of this inhibitor in ore pulp is: raw ore per ton adds 2000～6000 grams of these inhibitor.
As can be seen here, the embodiment of the present invention not only strong adaptability, operability is good, can meet the demand of various floatation process, and can sulphide ore not produced to effective talcum and serpentine of suppressing in inhibiting situation, therefore the embodiment of the present invention has not only improved the quality of valuable mineral concentrate and the rate of recovery of valuable mineral, and can not filter and the concentrated adverse effect that causes of mine tailing concentrate.
(2) apply the beneficiation method of this inhibitor
A kind of beneficiation method, is included in the step of the interpolation inhibitor in ore pulp, and this inhibitor adopts the inhibitor of the talcum described in technique scheme and serpentine and applies the beneficiation method of this inhibitor.
Particularly, the adding proportion of this inhibitor in ore pulp is preferably: raw ore per ton adds 2000～6000 grams of these inhibitor.In ore dressing process, the suitable amounts of this inhibitor is very important: if the consumption of this inhibitor very little, can not suppress well the phyllosilicate such as talcum, serpentine gangue, these gangues can enter in concentrate, cause the grade of concentrate sharply to reduce, also can cause the impurity content exceeding index such as MgO in concentrate; If the consumption of this inhibitor is excessive, so not only can consumes a large amount of beneficiation reagents, and can also produce larger inhibitory action to the valuable mineral such as copper sulfide, nickel sulfide, thereby the rate of recovery that causes valuable mineral is significantly reduced.
For the technique effect that more clearly shows technical scheme provided by the present invention and produce, with several groups of comparative examples, the inhibitor to talcum provided by the present invention and serpentine and the beneficiation method of applying this inhibitor are described in detail below.
Embodiment mono-
In certain copper nickel sulfide mineral, by weight percentage, pentlandite content is 2.2%, and chalcopyrite content is 0.34%, and serpentine content is 22.76%, and talc content is 7.95%, and content of magnesia is 27.4%.
Adopt method for floating of the prior art to carry out the bulk flotation of copper nickel serpentine talcum to this copper nickel sulfide mineral, and in mixed crude concentrate, add the inhibitor that the embodiment of the present invention provides, suppress with the easy-floating gangue such as talcum and serpentine in this copper nickel sulfide mineral; Particularly, the sodium carbonate that this inhibitor is 50%～80% by percentage by weight and 20%～50% zinc sulfate mix (sodium carbonate that is preferably 60% by percentage by weight and 40% zinc sulfate mix), and this inhibitor adds in mixed crude concentrate according to the ratio of adding 6000 grams in copper nickel sulfide mineral raw ore per ton.After triple cleaning, its ore dressing result is as shown in table 2 below.
In the situation that method for floating is identical, the inhibitor that adopts respectively sodium carboxymethylcellulose of the prior art (CMC), guar gum, waterglass, calgon to replace the embodiment of the present invention and provide carries out contrast test, its result of the test can be as shown in table 2 below (use amount in table 2 refers to that inhibitor adds in mixed crude concentrate according to the ratio of adding how many grams in copper nickel sulfide mineral raw ore per ton, and its unit is g/t; Copper content, nickel content and content of magnesia in table 2 all refer to the content in copper-nickel concentrate, and numerical value is percetage by weight):
Table 2:
From upper table 2, compared with sodium carboxymethylcellulose of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper-nickel concentrate and keep substantially constant as the content of magnesia of impurity, and nickel content improves 2.0%, the rate of recovery of copper improves 2.9%, and the rate of recovery of nickel improves 3.6%; Compared with guar gum of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper-nickel concentrate keep substantially constant, and nickel content improves 2.1%, content of magnesia as impurity reduces by 0.5%, the rate of recovery of copper improves 4.0%, and the rate of recovery of nickel improves 5.2%; Compared with waterglass of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the rate of recovery of copper keep substantially constant, and copper content in copper-nickel concentrate improves 9.3%, nickel content improves 11.2%, content of magnesia as impurity reduces by 10.5%, and the rate of recovery of nickel improves 2%; Compared with calgon of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper-nickel concentrate improve 9.1%, nickel content improves 10.9%, content of magnesia as impurity reduces by 9.5%, the rate of recovery of copper improves 0.7%, and the rate of recovery of nickel improves 3.8%.As can be seen here, the inhibitor that the embodiment of the present invention provides can not produce effective inhibition talcum and serpentine in inhibiting situation to sulphide ore, thereby has improved the quality of valuable mineral concentrate and the rate of recovery of valuable mineral.
In addition, compared with traditional inhibitor, the inhibitor that the embodiment of the present invention provides does not almost affect the rate of recovery of sulphide ore, and can effectively suppress talcum and serpentine, and the rate of recovery of sulphide ore has raising by a relatively large margin.In the present embodiment one, the inhibitor that adopts the embodiment of the present invention to provide, if year process 5,700,000 tons, ore, year has a net increase of 1.6 hundred million yuan of benefits, the inhibitor that therefore embodiment of the present invention provides has good economic worth, should be widely promoted.
Embodiment bis-
In certain copper nickel sulfide mineral, by weight percentage, pentlandite content is 2.3%, and chalcopyrite content is 0.53%, and serpentine content is 9.6%, and talc content is 12.9%, and content of magnesia is 25.1%.
Adopt method for floating of the prior art to carry out the bulk flotation of copper nickel serpentine talcum to this copper nickel sulfide mineral, and in mixed crude concentrate, add the inhibitor that the embodiment of the present invention provides, suppress with the easy-floating gangue such as talcum and serpentine in this copper nickel sulfide mineral; Particularly, the potash that this inhibitor is 50%～80% by percentage by weight and 20%～50% aluminum sulfate mix (potash that is preferably 60% by percentage by weight and 40% aluminum sulfate mix), and this inhibitor adds in mixed crude concentrate according to the ratio of adding 5000 grams in copper nickel sulfide mineral raw ore per ton.After triple cleaning, its ore dressing result is as shown in table 3 below.
In the situation that method for floating is identical, the inhibitor that adopts respectively sodium carboxymethylcellulose of the prior art (CMC), guar gum, waterglass, calgon to replace the embodiment of the present invention and provide carries out contrast test, its result of the test can be as shown in table 3 below (use amount in table 3 refers to that inhibitor adds in mixed crude concentrate according to the ratio of adding how many grams in copper nickel sulfide mineral raw ore per ton, and its unit is g/t; Copper content, nickel content and content of magnesia in table 3 all refer to the content in copper-nickel concentrate, and numerical value is percetage by weight):
Table 3:
From upper table 3, compared with sodium carboxymethylcellulose of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper-nickel concentrate improve 0.4%, nickel content improves 2.9%, content of magnesia as impurity reduces by 0.2%, the rate of recovery of copper improves 3.2%, and the rate of recovery of nickel improves 2.9%; Compared with guar gum of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper-nickel concentrate improve 1.0%, and nickel content improves 3.7%, reduces by 0.8% as the content of magnesia of impurity, the rate of recovery of copper improves 4.3%, and the rate of recovery of nickel improves 3.8%; Compared with waterglass of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper-nickel concentrate improve 8.6%, and nickel content improves 10.8%, reduces by 11.4% as the content of magnesia of impurity, the rate of recovery of copper improves 0.2%, and the rate of recovery of nickel improves 0.8%; Compared with calgon of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper-nickel concentrate improve 8.9%, nickel content improves 10.9%, content of magnesia as impurity reduces by 10.3%, the rate of recovery of copper improves 0.6%, and the rate of recovery of nickel improves 1.4%.As can be seen here, the inhibitor that the embodiment of the present invention provides can not produce effective inhibition talcum and serpentine in inhibiting situation to sulphide ore, thereby has improved the quality of valuable mineral concentrate and the rate of recovery of valuable mineral.
Embodiment tri-
In certain copper-sulphide ores, by weight percentage, chalcopyrite content is 2.61%, and serpentine content is 7.55%, and talc content is 5.11%, and content of magnesia is 4.84%.
Adopt method for floating of the prior art to carry out the bulk flotation of copper serpentine talcum to this copper-sulphide ores, and in mixed crude concentrate, add the inhibitor that the embodiment of the present invention provides, suppress with the easy-floating gangue such as talcum and serpentine in this copper nickel sulfide mineral; Particularly, the potash that this inhibitor is 50%～80% by percentage by weight and 20%～50% aluminum sulfate mix (potash that is preferably 60% by percentage by weight and 40% aluminum sulfate mix), and this inhibitor adds in mixed crude concentrate according to the ratio of adding 2000 grams in copper-sulphide ores raw ore per ton.After recleaning, its ore dressing result is as shown in table 4 below.
In the situation that method for floating is identical, the inhibitor that adopts respectively sodium carboxymethylcellulose of the prior art (CMC), guar gum, waterglass, calgon to replace the embodiment of the present invention and provide carries out contrast test, its result of the test can be as shown in table 4 below (use amount in table 4 refers to that inhibitor adds in mixed crude concentrate according to the ratio of adding how many grams in copper-sulphide ores raw ore per ton, and its unit is g/t; Copper content, nickel content and content of magnesia in table 2 all refer to the content in copper-nickel concentrate, and numerical value is percetage by weight):
Table 4:
From upper table 4, compared with sodium carboxymethylcellulose of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper concentrate improve 0.7%, reduces by 0.1% as the content of magnesia of impurity, and the rate of recovery of copper improves 2.1%; Compared with guar gum of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper concentrate improve 2.4%, reduces by 0.2% as the content of magnesia of impurity, and the rate of recovery of copper improves 2.9%; Compared with waterglass of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper concentrate improve 4.3%, reduces by 3.7% as the content of magnesia of impurity, and the rate of recovery of copper improves 1.6%; Compared with calgon of the prior art, the inhibitor that adopts the embodiment of the present invention to provide can make the copper content in copper concentrate improve 3.2%, reduces by 4.0% as the content of magnesia of impurity, and the rate of recovery of copper improves 2.2%.As can be seen here, the inhibitor that the embodiment of the present invention provides can not produce effective inhibition talcum and serpentine in inhibiting situation to sulphide ore, thereby has improved the quality of valuable mineral concentrate and the rate of recovery of valuable mineral.
As fully visible, the embodiment of the present invention is strong adaptability not only, can meet the demand of various floatation process, and can sulphide ore not produced to effective talcum and serpentine of suppressing in inhibiting situation, therefore the embodiment of the present invention has not only improved the quality of valuable mineral concentrate and the rate of recovery of valuable mineral, and can not filter and the concentrated adverse effect that causes of mine tailing concentrate.
The above; only for preferably detailed description of the invention of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (8)
1. an inhibitor for talcum and serpentine, is characterized in that, is mixed by the raw material of following percentage by weight: soluble carbonate salt 50%～80%, the not soluble sulphate 20%～50% of copper ions.
2. inhibitor according to claim 1, is characterized in that, the soluble sulphate of described not copper ions is at least one in aluminum sulfate, zinc sulfate or ferrous sulfate.
3. inhibitor according to claim 1, is characterized in that, described soluble carbonate salt is sodium carbonate.
4. according to the inhibitor described in any one in claims 1 to 3, it is characterized in that, in inhibitor, the percentage by weight of soluble carbonate salt is 60%, and the percentage by weight of the soluble sulphate of copper ions is not 40%.
5. according to the inhibitor described in any one in claims 1 to 3, it is characterized in that, in inhibitor, the percentage by weight of soluble carbonate salt is 50%, and the percentage by weight of the soluble sulphate of copper ions is not 50%.
6. according to the inhibitor described in any one in claims 1 to 3, it is characterized in that, the adding proportion of this inhibitor in ore pulp is: raw ore per ton adds 2000～6000 grams of these inhibitor.
7. a beneficiation method, is included in the step of the interpolation inhibitor in ore pulp, it is characterized in that, described inhibitor adopts the talcum described in any one and the inhibitor of serpentine in the claims 1 to 6.
8. beneficiation method according to claim 7, is characterized in that, the adding proportion of this inhibitor in ore pulp is: raw ore per ton adds 2000～6000 grams of these inhibitor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112058501A (en) * | 2020-08-07 | 2020-12-11 | 铜陵有色金属集团股份有限公司 | Serpentine inhibitor and preparation method and application thereof |
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Application publication date: 20141105 |