CN101381819A - Comprehensive recovery technique for molybdenum and sulfur from tailings of molybdenum floation - Google Patents
Comprehensive recovery technique for molybdenum and sulfur from tailings of molybdenum floation Download PDFInfo
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- CN101381819A CN101381819A CNA200810166978XA CN200810166978A CN101381819A CN 101381819 A CN101381819 A CN 101381819A CN A200810166978X A CNA200810166978X A CN A200810166978XA CN 200810166978 A CN200810166978 A CN 200810166978A CN 101381819 A CN101381819 A CN 101381819A
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- molybdenum
- sulfur
- sulphur
- floating
- mine tailing
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Abstract
The invention discloses a technique for comprehensive recovery of molybdenum and sulfur from floating molybdenum ore tailings, which comprises the following steps: the molybdenum ore tailings are classified by a hydrocyclone at first; about 80 percent of ore tailing particles with the dimension less than 0.15 millimeter are thrown away, and about 20 percent of coarse particles with the dimension more than 0.15 milliliter exist after classification; and the coarse particle ore tailings are grinded, and the grinding fineness of 50 to 55 percent of the coarse particles is controlled to be -200 meshes. The technique adopts the method of bulk flotation and separation of molybdenum and sulfur, namely the molybdenum and the sulfur are floated into foams together during the floating process, and then the molybdenum is floated and the sulfur is inhibited; and a sulfur inhibitor is added for inhibiting the sulfur, so as to effectively separate the molybdenum from the sulfur, and the molybdenum and the sulfur become products respectively. The technique pertinently recovers the molybdenum in the ore tailings, improves the utilization rate of molybdenum resources, simultaneously recovers the sulfur, achieves the effect of comprehensive utilization of limited mineral resources, and improves the economic benefit and the social benefit.
Description
Technical field
The invention belongs to floating molybdenum tailings recovery process, relate generally to a kind of floating molybdenum tailings comprehensive and reclaim molybdenum, sulphur novel process.
Background technology
In the non-ferrous metal ore process, valuable mineral obtains extracting, and other gangue mineral abandons as mine tailing, but often contains the composition of a certain amount of comprehensive reutilization in the mine tailing that abandons, and this composition is difference along with the difference of ore character.As except molybdenum, also containing a certain amount of tungsten, sulphur, iron, copper etc. in the molybdenum ore mountain, Luanchuan.After abandoning, cause the waste of a large amount of Mineral resources, do not meet energy-conservation, the consumption reduction of current country, the policy that reduces discharging.Often valuable mineral content is low in the mine tailing, and complicated component, adds the restriction of technical qualification, the comprehensive quite difficulty that reclaims.The white tungsten in Luanchuan reclaims the experimental study through more than 20 years, now be successfully applied to production, and sulphur is dropped always.
Summary of the invention
The purpose of this invention is to provide a kind of floating molybdenum tailings comprehensive and reclaim molybdenum, sulphur novel process, it is recycled to the molybdenum mine tailing, to reach the comprehensive utilization of limited Mineral resources.
Purpose of the present invention can adopt following technical scheme to realize:
Key of the present invention be exactly at molybdenum intergrowth particle thicker in the mine tailing reclaim (intergrowth be molybdenum ore thing or other valuable mineral with gangue mutually adhesion do not have isolating state, relative with monomer).Its concrete grammar is at first the molybdenum mine tailing to be carried out classification with hydrocyclone, lose about 80% mine tailing particle less than 0.15mm, this part fine tailings is comparatively clean by upstream molybdenum dressing-works flotation, reclaim again and increase plant capacity for no reason and efficient is not high, coarse grain mine tailing molybdenum grade often is more than the twice of total tailings grade, major part is an intergrowth, has recyclable utility value.Account for 20% after the classification greater than the 0.15mm coarse particles, this part coarse particles mine tailing is carried out ore grinding again, grinding fineness is controlled at-200 purposes and accounts for 50-55%; Adopt the isolating again method of molybdenum sulphur bulk flotation, promptly in the flotation molybdenum and sulphur together flotation enter foam, floating then molybdenum presses down sulphur, the inhibitor sodium sulphite and the lime that add sulphur suppress sulphur, and molybdenum is effectively separated with sulphur.At molybdenum sulphur content from operation and the selected operation of molybdenum, adopt segmentation, one by one, the method for successively decreasing adds sodium sulphite, amount of sodium sulfide is a 150g/ ton raw ore.And lime only separation roughly select with the selected operation of molybdenum in add on a small quantity.Final detached job mine tailing becomes sulphur concentrate product, and foam becomes the concentrated molybdenum ore product after for several times selected.
Because the sulphur grade according to present market value, has had recoverable value at 0.6-0.8% in the mine tailing that the present invention is directed to, when therefore the molybdenum ore thing being reclaimed, also take into account the recovery of sulphur.Adopt the grading and regrinding mine tailing to reclaim molybdenum sulphur technology, can make molybdenum, the sulphur of the former mine tailing of having lost obtain regeneration, molybdenum recovery can reach more than 40%, grade 35%.Adopt molybdenum sulphur to mix choosing and saved equipment and cost, the sulphur grade reaches more than 32%, the rate of recovery 60%.The present invention reclaims molybdenum in the mine tailing targetedly again, has improved the molybdenum resource utilization, has taken into account the recovery of sulphur simultaneously, reaches the comprehensive utilization of limited Mineral resources, thereby improves the economic and social benefits.
Embodiment
Embodiment:
At first the molybdenum mine tailing is carried out classification with hydrocyclone, lose about 80% mine tailing particle less than 0.15mm, account for 20% after the classification greater than the 0.15mm coarse particles, its molybdenum content is more than 2 times of original debris grade often, this part coarse particles mine tailing is carried out ore grinding again, grinding fineness is controlled at-200 orders and accounts for 50%, and most of molybdenum intergrowth has reached monomer dissociation, and the molybdenum ore thing just can effectively float in follow-up flotation operation like this.Conventional molybdenum flotation technology is adopted in flotation, produces the concentrated molybdenum ore of qualified grade.Because originally the sulphur grade according to present market value, has had recoverable value at 0.6-0.8% at the mine tailing, when therefore the molybdenum ore thing being reclaimed, also takes into account the recovery of sulphur.In order to simplify technology and minimizing equipment, this programme has adopted the isolating again technology of molybdenum sulphur bulk flotation.Bulk flotation is a kind of method of flotation, uses in the multi-metal sulfide ore dressing of being everlasting, and the bulk flotation of molybdenum sulphur is comparatively few to be used.Be in the flotation molybdenum and sulphur together flotation enter foam, floating then molybdenum presses down sulphur, the inhibitor that adds sulphur suppresses sulphur, and molybdenum is effectively separated with sulphur, becomes product separately.
Handle at present the ability meter of mine tailing according to 6000 ton per days, but 60 tons of output concentrated molybdenum ores in every year (folding 47%), 9000 tons of sulphur concentrate products (grade 32%), 9,000,000 yuan of molybdenum product profits, 1,500,000 yuan of sulphur product profits, two add up to 1,050 ten thousand yuan.
Claims (2)
1, a kind of floating molybdenum tailings comprehensive reclaims the technology of molybdenum, sulphur, it is characterized in that: earlier the molybdenum mine tailing is carried out classification with hydrocyclone, lose about 80% mine tailing particle less than 0.15mm, account for 20% after the classification greater than the 0.15mm coarse particles, this part coarse particles mine tailing is carried out ore grinding again, and grinding fineness is controlled at-200 purposes and accounts for 50-55%; Adopt the isolating again method of molybdenum sulphur bulk flotation, promptly in the flotation molybdenum and sulphur together flotation enter foam, floating then molybdenum presses down sulphur, the inhibitor that adds sulphur suppresses sulphur, and molybdenum is effectively separated with sulphur, becomes product separately.
2, a kind of floating molybdenum tailings comprehensive according to claim 1 reclaims the technology of molybdenum, sulphur, and it is characterized in that: the inhibitor of described sulphur is sodium sulphite and lime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810166978XA CN101381819A (en) | 2008-10-06 | 2008-10-06 | Comprehensive recovery technique for molybdenum and sulfur from tailings of molybdenum floation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810166978XA CN101381819A (en) | 2008-10-06 | 2008-10-06 | Comprehensive recovery technique for molybdenum and sulfur from tailings of molybdenum floation |
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| Publication Number | Publication Date |
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| CN101381819A true CN101381819A (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200810166978XA Pending CN101381819A (en) | 2008-10-06 | 2008-10-06 | Comprehensive recovery technique for molybdenum and sulfur from tailings of molybdenum floation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489407A (en) * | 2011-11-30 | 2012-06-13 | 长沙矿冶研究院有限责任公司 | Mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings |
| CN104475428A (en) * | 2014-12-02 | 2015-04-01 | 张夫道 | Method for performing innocent treatment on molybdenum tailings at low temperature section |
| CN106492993A (en) * | 2016-10-30 | 2017-03-15 | 长春黄金研究院 | Suppress the composite restrainer of particulate silicate gangue |
| CN107876216A (en) * | 2017-11-02 | 2018-04-06 | 广东省资源综合利用研究所 | A kind of molybdic tailing recovery molybdenum sulphur and the method that molybdenum siliceous fertilizer is prepared as raw material |
| CN108525841A (en) * | 2018-03-12 | 2018-09-14 | 北京矿冶科技集团有限公司 | A kind of Copper Ores association molybdenum dressing method |
-
2008
- 2008-10-06 CN CNA200810166978XA patent/CN101381819A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489407A (en) * | 2011-11-30 | 2012-06-13 | 长沙矿冶研究院有限责任公司 | Mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings |
| CN102489407B (en) * | 2011-11-30 | 2013-09-18 | 长沙矿冶研究院有限责任公司 | Mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings |
| CN104475428A (en) * | 2014-12-02 | 2015-04-01 | 张夫道 | Method for performing innocent treatment on molybdenum tailings at low temperature section |
| CN106492993A (en) * | 2016-10-30 | 2017-03-15 | 长春黄金研究院 | Suppress the composite restrainer of particulate silicate gangue |
| CN107876216A (en) * | 2017-11-02 | 2018-04-06 | 广东省资源综合利用研究所 | A kind of molybdic tailing recovery molybdenum sulphur and the method that molybdenum siliceous fertilizer is prepared as raw material |
| CN108525841A (en) * | 2018-03-12 | 2018-09-14 | 北京矿冶科技集团有限公司 | A kind of Copper Ores association molybdenum dressing method |
| CN108525841B (en) * | 2018-03-12 | 2020-11-06 | 北京矿冶科技集团有限公司 | Copper ore associated molybdenum sorting method |
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Open date: 20090311 |