CN103691574A - Preparation method and application of dolomite inhibitor - Google Patents
Preparation method and application of dolomite inhibitor Download PDFInfo
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- CN103691574A CN103691574A CN201310697982.XA CN201310697982A CN103691574A CN 103691574 A CN103691574 A CN 103691574A CN 201310697982 A CN201310697982 A CN 201310697982A CN 103691574 A CN103691574 A CN 103691574A
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Abstract
A preparation method of a dolomite inhibitor comprises the following steps of firstly mixing sulfuric acid, hydrochloric acid and water by the mass ratio of the sulfuric acid to the hydrochloric acid to the water = 2-7:1-2:8-13 to obtain a solution 1, then adding benzoic acid or nitrobenzene into the solution 1 by the mass ratio of 1-3:3-10, and obtaining a solution 2 through stirring and solution; adding water-soluble sulfate or sulfite into the solution 2 by the mass ratio of 1-2:3-7, controlling the temperature of the solution 2 to be 40-50 DEG C, performing stirring reaction for 6-7h to obtain a solution 3, performing suction filtration on the solution 3 to obtain crystallized slime and finally drying the crystallized slime under the condition of 60-75 DEG C to obtain the dolomite inhibitor. By adopting the dolomite inhibitor, dolomites can be inhibited, and the fluorite concentrate grade is improved.
Description
One, technical field
The present invention relates to the inhibitor of dolomite, particularly in fluorite and dolomite FLOTATION SEPARATION process, needs preparation method and the application thereof of a kind of dolomite inhibitor of raising fluorite concentrate grade.
Two, background technology
In fluorite deposit, fluorite general with lime stone, quartz and a small amount of other impure mineral association, for the recovery of this class fluorite, current technique of preparing is maturation quite.But in some fluorite deposits, contain a large amount of dolomite mineral, for these class fluorite mineral, be difficult at present separation, calcium ion on the one hand white stone ore thing is close with the calcium ion character in fluorite mineral, on the other hand, in dolomite mineral, the activity of magnesium ion is very strong, add the interference of other impure mineral, cause its FLOTATION SEPARATION difficulty; Because other impure mineral when the ore grinding easily becomes very thin particle, form sludge again, affect the recovery of fluorite, not only make flotation flowsheet complex structure, make that with medicament is many, production cost is high, fluorite concentrate content is not high, has limited the development and utilization of this class fluorite.
Three, summary of the invention
The object of the present invention is to provide a kind of preparation method and application thereof of dolomite inhibitor, prepared inhibitor can suppress dolomite in fluorite, improves fluorite concentrate product.
The present invention achieves the above object by the following technical solutions: a kind of preparation method of dolomite inhibitor, comprise the steps: first sulfuric acid, hydrochloric acid and water sulfuric acid in mass ratio: hydrochloric acid: water=2～7:1～2:8～13 are mixed to get solution 1, then benzoic acid or nitrobenzene in mass ratio=1～3:3～10 are added in solution 1, be stirred to and dissolve to obtain solution 2; Then water-soluble sulfate or sulphite in mass ratio=1～2:3～7 are added in solution 2, controlling solution 2 temperature is 40～50 ℃, stirring reaction keeps 6～7h to obtain solution 3, solution 3 suction filtrations are obtained to crystalloid dope, finally that crystalloid dope is dry under 60～75 ℃ of conditions, be described dolomite inhibitor.
During flotation, slurry pH is 9.5～10; In floatation process, after ore ore grinding to mineral monomer is dissociated, add described inhibitor, collecting agent.
The total consumption of medicament is: 500～800g/t.
Concrete advantage of the present invention is:
1, adopt the present invention can suppress dolomite, improve fluorite concentrate grade.
2, dosing of the present invention is few.
Four, the specific embodiment
By specific embodiment, technical scheme of the present invention is further described below.
Embodiment 1
The preparation method's of a dolomite inhibitor of the present invention example, comprises the following steps:
First by sulfuric acid, hydrochloric acid and water sulfuric acid in mass ratio: hydrochloric acid: water=2:1:8 is mixed to get solution 1, then by benzoic acid or nitrobenzene in mass ratio=1:3 adds in solution 1, is stirred to and dissolves to obtain solution 2; Then by water-soluble sulfate or sulphite in mass ratio=1:3 adds in solution 2, controlling solution 2 temperature is 40 ℃, stirring reaction keeps 6h to obtain solution 3, solution 3 suction filtrations are obtained to crystalloid dope, finally that crystalloid dope is dry under 60 ℃ of conditions, be described dolomite inhibitor.
Embodiment 2
Another example of the preparation method of dolomite inhibitor of the present invention, comprises the following steps:
First by sulfuric acid, hydrochloric acid and water sulfuric acid in mass ratio: hydrochloric acid: water=7:2:13 is mixed to get solution 1, then by benzoic acid or nitrobenzene in mass ratio=3:10 adds in solution 1, is stirred to and dissolves to obtain solution 2; Then by water-soluble sulfate or sulphite in mass ratio=2:7 adds in solution 2, controlling solution 2 temperature is 50 ℃, stirring reaction keeps 7h to obtain solution 3, solution 3 suction filtrations are obtained to crystalloid dope, finally that crystalloid dope is dry under 75 ℃ of conditions, be described dolomite inhibitor.
Embodiment 3
The present embodiment is the application example of described dolomite inhibitor in fluorite and dolomite FLOTATION SEPARATION.
1, raw mineral materials:
In raw mineral materials used, the content of fluorite is 63.08%, dolomite content is 27.12%, calcium carbonate content is 2.56%, quartz content is 5.57%, through material phase analysis, show, ore mainly exists with fluorite, dolomite, carbonate and quartzy form, separately has a small amount of shale mineral.
2, regime of agent and operating condition: with sodium carbonate, adjust pH values of pulp to 9.5～10, press inhibitor 500g/t, enuatrol 550g/t dosing is tested, result shows to adopt above technique and the medicament condition can be effectively by fluorite and dolomite FLOTATION SEPARATION, giving ore deposit fluorite content, be under 63.08% condition, through one roughing scan for four times and six times selected, flotation concentrate fluorite content can reach 97.15%, and the rate of recovery reaches 79.66%.
Embodiment 4
The present embodiment is the Another Application example of described dolomite inhibitor in fluorite and dolomite FLOTATION SEPARATION.
1, raw mineral materials
In raw mineral materials used, the content of fluorite is 67.73%, dolomite content is 20.64%, calcium carbonate content is 1.40%, quartz content is 6.93%, through material phase analysis, show, ore mainly exists with fluorite, dolomite, carbonate and quartzy form, separately has a small amount of shale mineral.
2, regime of agent and operating condition: with sodium carbonate, adjust pH values of pulp to 9.5～10, press inhibitor 800g/t, enuatrol 550g/t dosing is tested, result shows to adopt above technique and the medicament condition can be effectively by fluorite and dolomite FLOTATION SEPARATION, giving ore deposit fluorite content, be under 67.73% condition, through one roughing scan for four times and six times selected, flotation concentrate fluorite content can reach 97.70%, and the rate of recovery reaches 82.43%.
Claims (3)
1. the preparation method of a dolomite inhibitor, it is characterized in that, comprise the steps: first sulfuric acid, hydrochloric acid and water sulfuric acid in mass ratio: hydrochloric acid: water=2～7:1～2:8～13 are mixed to get solution 1, then benzoic acid or nitrobenzene in mass ratio=1～3:3～10 are added in solution 1, be stirred to and dissolve to obtain solution 2; Then water-soluble sulfate or sulphite in mass ratio=1～2:3～7 are added in solution 2, controlling solution 2 temperature is 40～50 ℃, stirring reaction keeps 6～7h to obtain solution 3, solution 3 suction filtrations are obtained to crystalloid dope, finally that crystalloid dope is dry under 60～75 ℃ of conditions, be described dolomite inhibitor.
2. the application of dolomite inhibitor according to claim 1 in fluorite and dolomite FLOTATION SEPARATION, is characterized in that, during flotation, slurry pH is 9.5～10; In floatation process, after ore ore grinding to mineral monomer is dissociated, add described inhibitor, collecting agent,
The total consumption of medicament is: 500～800g/t.
3. the application of dolomite inhibitor according to claim 2 in fluorite and dolomite FLOTATION SEPARATION, is characterized in that, during use, it is 3～5% the aqueous solution that described inhibitor is first mixed with to mass percentage concentration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310697982.XA CN103691574B (en) | 2013-12-17 | 2013-12-17 | A kind of preparation method of dolomite inhibitor and application thereof |
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| CN201310697982.XA CN103691574B (en) | 2013-12-17 | 2013-12-17 | A kind of preparation method of dolomite inhibitor and application thereof |
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| CN103691574A true CN103691574A (en) | 2014-04-02 |
| CN103691574B CN103691574B (en) | 2015-09-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437888A (en) * | 2014-11-21 | 2015-03-25 | 广西大学 | Method for preparing zinc-sulfur mineral depressor |
| CN106492994A (en) * | 2016-11-02 | 2017-03-15 | 广西大学 | A kind of preparation method of olivine mineral inhibitor |
| CN106733213A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of preparation method of fluorite mineral inhibitor |
| CN108160336A (en) * | 2017-12-26 | 2018-06-15 | 中国地质科学院矿产综合利用研究所 | Tellurium-bismuth ore flotation inhibitor and preparation method and application thereof |
| CN108654830A (en) * | 2018-04-28 | 2018-10-16 | 武汉科技大学 | A kind of method of the recycling of dolomite type magnetic iron ore magnetic tailing fluorite and dolomite |
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| US4636303A (en) * | 1985-10-07 | 1987-01-13 | Tennessee Valley Authority | Beneficiation of dolomitic phosphate ores |
| CN87101820A (en) * | 1987-03-07 | 1988-09-21 | 化学工业部化工矿山设计研究院 | A kind of preparation method who is used for the new dolomite inhibitor sulfomethylated derivative of calcium lignosulfonate of phosphate rock floating |
| CN102357426A (en) * | 2011-08-03 | 2012-02-22 | 西北矿冶研究院 | Inhibitor for fluorite ore siliceous mineral and calcium carbonate mineral |
| CN103056035A (en) * | 2012-11-15 | 2013-04-24 | 中国海洋石油总公司 | Carbonate inhibitor and preparation method and application thereof |
| CN103341414A (en) * | 2013-06-26 | 2013-10-09 | 烟台市富林矿山机械有限公司 | Inhibitor for beneficiation and manufacturing method for inhibitor |
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2013
- 2013-12-17 CN CN201310697982.XA patent/CN103691574B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4636303A (en) * | 1985-10-07 | 1987-01-13 | Tennessee Valley Authority | Beneficiation of dolomitic phosphate ores |
| CN87101820A (en) * | 1987-03-07 | 1988-09-21 | 化学工业部化工矿山设计研究院 | A kind of preparation method who is used for the new dolomite inhibitor sulfomethylated derivative of calcium lignosulfonate of phosphate rock floating |
| CN102357426A (en) * | 2011-08-03 | 2012-02-22 | 西北矿冶研究院 | Inhibitor for fluorite ore siliceous mineral and calcium carbonate mineral |
| CN103056035A (en) * | 2012-11-15 | 2013-04-24 | 中国海洋石油总公司 | Carbonate inhibitor and preparation method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437888A (en) * | 2014-11-21 | 2015-03-25 | 广西大学 | Method for preparing zinc-sulfur mineral depressor |
| CN106492994A (en) * | 2016-11-02 | 2017-03-15 | 广西大学 | A kind of preparation method of olivine mineral inhibitor |
| CN106492994B (en) * | 2016-11-02 | 2018-11-20 | 广西大学 | A kind of preparation method of olivine mineral inhibitor |
| CN106733213A (en) * | 2016-12-07 | 2017-05-31 | 广西大学 | A kind of preparation method of fluorite mineral inhibitor |
| CN106733213B (en) * | 2016-12-07 | 2018-11-20 | 广西大学 | A kind of preparation method of fluorite mineral inhibitor |
| CN108160336A (en) * | 2017-12-26 | 2018-06-15 | 中国地质科学院矿产综合利用研究所 | Tellurium-bismuth ore flotation inhibitor and preparation method and application thereof |
| CN108160336B (en) * | 2017-12-26 | 2020-11-03 | 中国地质科学院矿产综合利用研究所 | Tellurium-bismuth ore flotation inhibitor and preparation method and application thereof |
| CN108654830A (en) * | 2018-04-28 | 2018-10-16 | 武汉科技大学 | A kind of method of the recycling of dolomite type magnetic iron ore magnetic tailing fluorite and dolomite |
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|---|---|
| CN103691574B (en) | 2015-09-09 |
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