CN103447146A - Method for recovering feldspar from molybdenum ore tailings - Google Patents
Method for recovering feldspar from molybdenum ore tailings Download PDFInfo
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- CN103447146A CN103447146A CN2013104326405A CN201310432640A CN103447146A CN 103447146 A CN103447146 A CN 103447146A CN 2013104326405 A CN2013104326405 A CN 2013104326405A CN 201310432640 A CN201310432640 A CN 201310432640A CN 103447146 A CN103447146 A CN 103447146A
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Abstract
The invention discloses a method for recovering feldspar from molybdenum selection tailings, which comprises the following steps of firstly, reselecting the molybdenum selection tailings to remove fine mud and heavy minerals; then carrying out magnetic separation on the reselected molybdenum separation tailings to remove magnetic and weakly magnetic minerals; adding sodium oleate and amine collecting agent to float the residual mineral which can react with sulfuric acid to obtain feldspar and quartz mixed mineral; sulfuric acid is added into the mixed mineral to adjust the pH value of the ore pulp, and an amine collector is used for floating feldspar, so that feldspar concentrate is finally obtained. The method solves the problem of comprehensive recovery of low-grade potassium-sodium feldspar in molybdenum ore tailings, is beneficial to obtaining high-grade feldspar ore concentrate, reduces the stockpiling amount of the tailings and has obvious environmental benefit.
Description
Technical field
The present invention relates to technical field of mineral processing, relate in particular to a kind of method that reclaims feldspar from select the molybdenum mine tailing.
Background technology
China be a molybdenum resource reserve abundant country, a large-scale molybdenum ore can produce the above mine tailing of 1,000 ten thousand tons/a.Generally contain K in the molybdenum mine tailing
2o2%-7%, Na
2o1.5%-3%, the content of spectra is generally 30-60%.In the molybdenum mine tailing, many, the complicated component of impurities kind, partial impurities are similar to the feldspar floatability, very large on the impact of feldspar concentrate quality.Generally, in the molybdenum mine tailing, metalliferous mineral mainly contains the mineral such as pyrite, ilmenite, rutile, siderite and bloodstone, limonite, and nonmetallic mineral is mainly other mineral such as feldspar (potassic feldspar and albite), quartz, mica, chlorite and calcite, apatite, mica, dolomite, kaolin, aspidelite, barite and pyroxene, talcum, zircon.
Continuous minimizing along with the feldspar abundant ore source, in a large amount of molybdenum mine tailings, low grade potassium albite mineral products resource remains to be developed, it is crucial studying a kind of efficient, applicable ore-dressing technique, and traditional feldspar ore-dressing technique is only carried out simple removal of impurities to the feldspar rich ore, with meet the raw material of industry demand; Perhaps adopt HF technique floatation for separating feldspar to wait impurity with quartzy, but HF technique by environmental administration, forbidden to use, therefore traditional feldspar ore-dressing technique all can not be effectively by low grade potassium albite resource in the molybdenum mine tailing.
Summary of the invention
The purpose of this invention is to provide a kind of method that reclaims feldspar from select the molybdenum mine tailing, the method has solved selects the comprehensive difficult problem reclaimed of low grade potassium albite in the molybdenum mine tailing, is conducive to obtain the high-grade feldspar concentrate, reduces the tailing heap storage, obvious environment benefit simultaneously.
A kind of method that reclaims feldspar from select the molybdenum mine tailing, described method comprises:
To selecting the molybdenum mine tailing to carry out gravity treatment, remove thin mud and heavy mineral;
Again the molybdenum mine tailing that selects after gravity treatment is carried out to magnetic separation, remove magnetic and weak magnetic mineral;
Add again enuatrol, amine collector flotation residual can with the mineral of sulfuric acid generation chemical reaction, obtain feldspar and quartzy mixed mineral;
Add the pH value that sulfuric acid is adjusted ore pulp in described mixed mineral, and use amine collector flotation feldspar, finally obtain feldspar concentrate.
Described can comprise with the mineral of sulfuric acid generation chemical reaction following one or more:
Sulphide ore, mica, chlorite, calcite, apatite, ilmenite, rutile, siderite and bloodstone.
The pH value of described adjustment ore pulp is to 2-4.
As seen from the above technical solution provided by the invention, the method has solved selects the comprehensive difficult problem reclaimed of low grade potassium albite in the molybdenum mine tailing, is conducive to obtain the high-grade feldspar concentrate, reduces the tailing heap storage, obvious environment benefit simultaneously.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The method flow schematic diagram that reclaims feldspar from select the molybdenum mine tailing that Fig. 1 provides for the embodiment of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, 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, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to protection scope of the present invention.
The embodiment of the present invention is by adopting gravity treatment desliming-magnetic separation removal of impurities-flotation removal of impurities-feldspar floatation process, solve the comprehensive difficult problem reclaimed of low grade potassium albite in the molybdenum mine tailing, below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail, the method flow schematic diagram that reclaims feldspar from select the molybdenum mine tailing that Fig. 1 provides for the embodiment of the present invention, described method comprises:
Step 11: carry out gravity treatment to selecting the molybdenum mine tailing, remove thin mud and heavy mineral;
In this step, at first to selecting the molybdenum mine tailing to adopt gravity treatment, remove in advance thin mud, reduce the consumption of beneficiation reagent, and be conducive to obtain the high-grade feldspar concentrate, can remove the mineral that a part of proportion is larger and the bulky grain mineral that are unfavorable for flotation, reduce the mine-supplying quantity of flotation operation, increased the disposal ability of floatation equipment simultaneously.
Step 12: again the molybdenum mine tailing that selects after gravity treatment is carried out to magnetic separation, remove magnetic and weak magnetic mineral;
In this step, the magnetic separation here is high intensity magnetic separation.
Step 13: add again enuatrol, amine collector flotation residual can with the mineral of sulfuric acid generation chemical reaction, obtain feldspar and quartzy mixed mineral;
In this step, except can with the mineral of sulfuric acid generation chemical reaction, can be also the mineral that affect the feldspar concentrate quality, can comprise with the mineral of sulfuric acid generation chemical reaction here following one or more:
The mineral such as sulphide ore, mica, chlorite, calcite, apatite, ilmenite, rutile, siderite and bloodstone.
And, by the flotation removal of impurities, just can remove in advance the impurity that affects the concentrate quality, greatly reduce the consumption of feldspar and quartzy flotation operation sulfuric acid.
Step 14: add the pH value that sulfuric acid is adjusted ore pulp in described mixed mineral, and use amine collector flotation feldspar, finally obtain feldspar concentrate.
In specific implementation, through great many of experiments, preferably adjust the pH value of ore pulp to 2-4.
In this step, use sulfuric acid to adjust slurry pH, the amine collector floatation for separating feldspar, with quartzy, has replaced traditional HF technique, obvious environment benefit.
Below with concrete example, above-mentioned process is described:
Example 1:
The Heilungkiang molybdenum ore selects metalliferous mineral in the molybdenum mine tailing to be mainly pyrite, zincblende, magnetic iron ore, galena, mispickel, ilmenite, limonite, mica, magnetic iron ore, rutile, bloodstone etc.; Nonmetallic mineral is mainly feldspar, quartz, calcite, muscovite, sericite, illite, kaolinite, also has a small amount of aspidelite, apatite etc.
Adopting the described technological process of said method embodiment finally to obtain the feldspar concentrate productive rate is 28.48%, K
2the O grade is 11.54%, Na
2the O grade is 2.51%, K
2the O rate of recovery is 47.73%; Na
2the O rate of recovery is 40.30%, and feldspar concentrate reaches potassic feldspar quality standard and ceramic industry potassic feldspar quality standard for potash fertilizer.
Example 2:
It is mainly the mineral such as pyrite, magnetic iron ore, ilmenite, rutile, siderite, bloodstone, limonite that Inner Mongol molybdenum ore selects metalliferous mineral in the molybdenum mine tailing, nonmetallic mineral is mainly potassic feldspar and plagioclase, quartz, biotite, chlorite, calcite, apatite, muscovite, dolomite, barite and pyroxene, talcum, zircon etc., K
2the O grade is 4.28%, Na
2the O grade is 2.77%.
Adopting the described technological process of said method embodiment finally to obtain the feldspar concentrate productive rate is 18.62%, K in concentrate
2the O grade is 8.62%, and the rate of recovery is 37.88%; Na
2the O grade is 4.39%, and the rate of recovery is 29.90%; In feldspar concentrate, TFe content is 0.42%.
In sum, the above-mentioned process that reclaims feldspar from select the molybdenum mine tailing comprises following advantage:
1) flow process strong adaptability, all be suitable for all molybdenum mine tailing flotation feldspars that selects, and other milltailings have reference value;
2) adopt gravity treatment, can predictive desliming, reduce the consumption of beneficiation reagent, and be conducive to obtain the high-grade feldspar concentrate; Can remove the mineral that a part of proportion is larger and the bulky grain mineral that are unfavorable for flotation; Reduce the mine-supplying quantity of flotation operation, increased the disposal ability of floatation equipment;
3) flotation removal of impurities, can remove the impurity that affects the concentrate quality in advance; Removed with can sulfuric acid the mineral of generation chemical reaction as calcite, siderite, bloodstone etc., greatly reduce the consumption of feldspar and quartzy flotation operation sulfuric acid;
4) use sulfuric acid to adjust slurry pH, the amine collector floatation for separating feldspar, with quartzy, replaces traditional HF technique.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, anyly is 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 (3)
1. a method that reclaims feldspar from select the molybdenum mine tailing, is characterized in that, described method comprises:
To selecting the molybdenum mine tailing to carry out gravity treatment, remove thin mud and heavy mineral;
Again the molybdenum mine tailing that selects after gravity treatment is carried out to magnetic separation, remove magnetic and weak magnetic mineral;
Add again enuatrol, amine collector flotation residual can with the mineral of sulfuric acid generation chemical reaction, obtain feldspar and quartzy mixed mineral;
Add the pH value that sulfuric acid is adjusted ore pulp in described mixed mineral, and use amine collector flotation feldspar, finally obtain feldspar concentrate.
2. reclaim according to claim 1 the method for feldspar from select the molybdenum mine tailing, it is characterized in that, described can comprise with the mineral of sulfuric acid generation chemical reaction following one or more:
Sulphide ore, mica, chlorite, calcite, apatite, ilmenite, rutile, siderite and bloodstone.
3. reclaim according to claim 1 the method for feldspar from select the molybdenum mine tailing, it is characterized in that,
The pH value of described adjustment ore pulp is to 2-4.
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Cited By (8)
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| CN104258979A (en) * | 2014-09-11 | 2015-01-07 | 四川南江新兴矿业有限公司 | Feldspar quarry beneficiation process |
| CN105057113A (en) * | 2015-08-07 | 2015-11-18 | 山东华晟投资有限公司 | Method for recycling feldspar from gold flotation tailings through fluoride-free alkali process |
| CN105618271A (en) * | 2016-03-24 | 2016-06-01 | 郑州山川重工有限公司 | Method for separating quartz from low-grade potassium and sodium feldspar ore |
| CN105944827A (en) * | 2016-04-21 | 2016-09-21 | 洛南县恒丰非金属矿业有限公司 | Method for extracting rare earth tailings discarded by preconcentration from molybdenum floatation tailings |
| CN108580055A (en) * | 2018-08-01 | 2018-09-28 | 中冶北方（大连）工程技术有限公司 | A kind of ore-dressing technique of iron content molybdenum ore |
| CN109290049A (en) * | 2018-09-25 | 2019-02-01 | 内蒙古扎鲁特旗鲁安矿业有限公司 | A kind of radioactive beneficiation method of quartzy feldspar concentrate of removal |
| CN113877719A (en) * | 2021-10-29 | 2022-01-04 | 中化地质矿山总局地质研究院 | Method for recovering quartz and enriching tungsten from gold tailings |
| CN113976306A (en) * | 2021-11-02 | 2022-01-28 | 中南大学 | Pre-waste-throwing system and process for complex refractory low-grade molybdenum ore heavy-medium beneficiation |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258979A (en) * | 2014-09-11 | 2015-01-07 | 四川南江新兴矿业有限公司 | Feldspar quarry beneficiation process |
| CN105057113A (en) * | 2015-08-07 | 2015-11-18 | 山东华晟投资有限公司 | Method for recycling feldspar from gold flotation tailings through fluoride-free alkali process |
| CN105618271A (en) * | 2016-03-24 | 2016-06-01 | 郑州山川重工有限公司 | Method for separating quartz from low-grade potassium and sodium feldspar ore |
| CN105618271B (en) * | 2016-03-24 | 2018-03-20 | 郑州山川重工有限公司 | The method that quartz is separated from low grade potassium albite ore |
| CN105944827A (en) * | 2016-04-21 | 2016-09-21 | 洛南县恒丰非金属矿业有限公司 | Method for extracting rare earth tailings discarded by preconcentration from molybdenum floatation tailings |
| CN108580055A (en) * | 2018-08-01 | 2018-09-28 | 中冶北方（大连）工程技术有限公司 | A kind of ore-dressing technique of iron content molybdenum ore |
| CN109290049A (en) * | 2018-09-25 | 2019-02-01 | 内蒙古扎鲁特旗鲁安矿业有限公司 | A kind of radioactive beneficiation method of quartzy feldspar concentrate of removal |
| CN109290049B (en) * | 2018-09-25 | 2021-01-26 | 内蒙古扎鲁特旗鲁安矿业有限公司 | Beneficiation method for removing radioactivity of quartz feldspar concentrate |
| CN113877719A (en) * | 2021-10-29 | 2022-01-04 | 中化地质矿山总局地质研究院 | Method for recovering quartz and enriching tungsten from gold tailings |
| CN113877719B (en) * | 2021-10-29 | 2023-09-15 | 中化地质矿山总局地质研究院 | Method for recovering quartz and enriching tungsten from gold tailings |
| CN113976306A (en) * | 2021-11-02 | 2022-01-28 | 中南大学 | Pre-waste-throwing system and process for complex refractory low-grade molybdenum ore heavy-medium beneficiation |
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