CN100406128C - Floatation-gravitational separation-floatation combined process of recovering wulfenite - Google Patents
Floatation-gravitational separation-floatation combined process of recovering wulfenite Download PDFInfo
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- CN100406128C CN100406128C CNB2006100486509A CN200610048650A CN100406128C CN 100406128 C CN100406128 C CN 100406128C CN B2006100486509 A CNB2006100486509 A CN B2006100486509A CN 200610048650 A CN200610048650 A CN 200610048650A CN 100406128 C CN100406128 C CN 100406128C
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- molybdenum
- wulfenite
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- floatation
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Abstract
The floatation-gravitational separation-floatation combined process of recovering wulfenite includes the following steps: grinding ore to liberate molybdenum mineral monomer; separating the molybdenum mineral from gangue mineral in floatation equipment with floatation reagent to obtain the floated product as the molybdenum concentrate; further separating the molybdenum mineral from gangue mineral in the floatation tailings with a shaking table to obtain the re-separated molybdenum concentrate; and further milling the shaking table tailings as the supplement of the first milling. The floatation reagent is selected from Na2S, Na2SiO3, butyl xanthate, butyl ammonium aerofloat and pine oil. The present invention is suitable for separation of molybdenum mineral from gangue mineral, and has high concentrate quality, high recovering rate, short process, facile floatation reagent and low cost.
Description
Technical field
The invention belongs to a kind of flotation-gravity treatment, perhaps flotation-gravity treatment-flotation combined flow process reclaims the method for wulfenite.
Background technology
Wulfenite is a kind of uncommon mineral of molybdenum, in existing ore dressing document about molybdenum, comprise " in the relevant chapters and sections of ore dressing handbook the 8th volume second fascicle molybdenum ore dressing of domestic and international comparatively authority, to the industrial mineral of molybdenum all based on molybdenite, the research of molybdenum ore dressing and to produce object mostly be molybdenite.Record for the wulfenite ore dressing does not almost have.Reason may be that this mineral and mineral deposit are not also found fully and studied at occurring in nature.Along with the raising of looking for ore deposit development of technology and mineralogical study level, the past is not found gradually, is familiar with by many mineral that people were familiar with, and has found its industrial value gradually.Wulfenite may be exactly to belong to one of such mineral.Therefore, research and the application for beneficiation method that wulfenite is separated from gangue mineral and relevant device seems that realistic meaning is more and more arranged.
Summary of the invention
It is combined to the objective of the invention is to propose a kind of multiple ore-dressing technique and flow process utilized, and the method for high efficiente callback wulfenite is to solve the deficiencies in the prior art.
This floating-heavy-floating combined process flow proposed by the invention reclaims the method for wulfenite, it is characterized in that it has the following steps:
(1) with the ore ore grinding to molybdenum ore thing monomer dissociation;
(2) with floatation equipment and medicament molybdenum ore thing and gangue mineral are separated, the come-up product is molybdenum concntrate product (purpose mineral);
(3) with shaking table with molybdenum ore thing in the flotation tailing and gangue mineral further separate gravity treatment molybdenum concntrate product.
When first section ore grinding deficiency so that during the abundant monomer dissociation of molybdenum ore thing, the further ore grinding of shaking table mine tailing with (3) step makes the further monomer dissociation of molybdenum ore thing, with floatation equipment and medicament further separate the molybdenum concntrate product.
Behind the raw ore ore grinding, enter before the flotation operation with the desliming device desliming of going ahead of the rest, the sludge that removes carries out separately that one roughing and 1-2 time are selected must the concentrate product, shaking table further separates on the roughing flotation mine tailing, rougher tailings is a true tailings.
First section flotation carried out scanning for 3-5 time, the product of the first, the 3rd to the 5th subjob concentrate carry out 1-2 time selected, products obtained therefrom is final products with operation second time product.
Floating agent is selected from: Na
2S, Na
2SiO
3, butyl xanthate, butyl ammonium aerofloat and pine tar.
The primary grinding fineness accounts for 70-95% for-200 orders, and the secondary grinding fineness accounts for 70-95% for the 200-300 order.
The present invention generally is applicable to the wulfenite to be the molybdenum ore thing of main purpose mineral and separating of gangue mineral, and gained molybdenum concntrate product index is good, rate of recovery height, and technological process is short, and operation is less, and institute's with medicament is selected from existing medicament, and production cost is cheaper.It is a kind of desirable wulfenite ore-dressing technique method.
Description of drawings
Accompanying drawing 1 is a principle flow chart of the present invention.
Accompanying drawing 2 is floating-heavy-floating joint process figure.
Numeral among the accompanying drawing 1-2 is the number quality index.The implication of legend is the productive rate that the r of horizontal line left end represents this place's product, and the numeral of horizontal line below should be located the rate of recovery of certain metal in the product, and the numeral of horizontal line top is somebody's turn to do the grade of certain metal in place's product.
The specific embodiment
Example one is an example with the wulfenite in somewhere, Guizhou.Find out that through the material composition analysis a collection of raw ore of extraction contains molybdenum 0.853% from this mineral deposit ore, plumbous 2.36%, silver 30.78g/t, the mineral of molybdenum mainly are wulfenites, and secondly molybdenum distributive law in these mineral is molybdine molybdite (ferrimolybdite), molybdenite up to 71%.Molybdenum dyes clay at barite, earthy limonite, limonite, bloodstone, clay, iron in addition, and in other mineral a small amount of distribution is arranged also.Plumbous main the tax is stored in wulfenite, plumbojarosite and galena, cerussite, the manganese ore nuclear.The maximum grain size number of wulfenite thing is 1.5mm in the ore, general particle diameter between 0.6-0.002mm, minimum grain size＜0.0001mm.Wulfenite and limonite, bloodstone, argillaceous hematite, iron dye clay, galena, sardinianite, plumbojarosite, barite, quartz, silicate waste etc. and form complicated symbiosis embedding cloth relation.The ore that belongs to awkward choosing.At this ore character, the present invention adopts the principle process shown in the accompanying drawing 1 to reclaim, be about to ore ore grinding to-200 orders and account for 70-95%, the classification overflow desliming of going ahead of the rest, as with medicament deslimings such as hydrocyclone or flocculant, pine tars), the thin mud that removes carries out the mud choosing according to circumstances and reclaims or abandon into mine tailing.Ore pulp after the desliming carries out five flotation, roughly select for the first time product, the 3rd to the 5th float product and mud select product to merge to carry out twice selected products therefrom with roughly select for the second time product merge the molybdenum concntrate product.Ore pulp after five flotation is sloughed the following grade of 0.037mm with grader, and remaining coarse fraction carries out gravity treatment with shaking table, further reclaims, and products therefrom and flotation molybdenum concentrate product merge, and the shaking table mine tailing is gone into true tailings.
Floating agent and activity duration are as follows:
The thick I operation of flotation Na
2S1.5-3.5kg/t; Na
2SiO
31-2kg/t; Butyl xanthate 300-500g/t; Butyl ammonium aerofloat 30-50g/t; Pine tar 20-40g/t.Time 3-5 minute.
The thick II operation of flotation Na
2S1-2kg/t; Na
2SiO
30.2-0.8kg/t; Butyl xanthate 100-300g/t; Butyl ammonium aerofloat 10-30g/t; Pine tar 10-20g/t.Time 3-5 minute.
The thick III operation of flotation Na
2S1-2kg/t; Na
2SiO
30.2-0.8kg/t; Butyl xanthate 100-300g/t; Butyl ammonium aerofloat 10-30g/t; Pine tar 10-20g/t.Time 3-5 minute.
The thick IV operation of flotation Na
2S0.5-1kg/t; Na
2SiO
30.1-0.5kg/t; Butyl xanthate 50-120g/t.Time 3-5 minute.
The thick V operation of flotation Na
2S0.3-0.7kg/t; Butyl xanthate 30-30g/t.3 minutes time.
To the thick I of flotation, thick III selected I operation Na to thick V product
2S0.1-0.5kg/t; Butyl xanthate 10-50g/t.Time 3-5 minute.The activity duration of selected II is 3-5 minute.
The products obtained therefrom quality index is as follows:
Molybdenum concntrate contains: Mo8.37%; Pb23.22%; Ag115g/t; As0.62%; S3.48%; P0.045%.
The rate of recovery: Mo62.30%; Pb61.68%; Ag23.67%.
Example two carries out second section ore grinding with the shaking table mine tailing on last routine basis, fineness to-300 orders account for 95%.The thick II of above routine flotation carries out second section flotation to the medicament condition of one of thick V, gets float product and contains Mo1.78%, and the rate of recovery accounts for 2.71%.
Second section float product and last routine products obtained therefrom are merged, and the molybdenum grade of final products is 7.25%,, be 65.01% to the molybdenum recovery of raw ore.As if with this routine ore character, the cost of second section ore grinding and flotation is excessive, loses more than gain.But can not allow the mineral monomer of molybdenums such as wulfenite dissociate when reaching the degree of economical rationality when first section ore grinding, this operation is essential.
Claims (10)
1. floating-heavy combined process flow reclaims the method for wulfenite, it is characterized in that it has the following steps:
(1) with the ore ore grinding to molybdenum ore thing monomer dissociation;
(2) with floatation equipment and medicament molybdenum ore thing and gangue mineral are separated, the come-up product is the molybdenum concntrate product;
(3) with shaking table with molybdenum ore thing in the flotation tailing and gangue mineral further separate gravity treatment molybdenum concntrate product.
2. the method for recovery wulfenite according to claim 1, it is characterized in that raw ore mill back, enter before the flotation operation with the desliming of going ahead of the rest of desliming device or flocculant, the sludge that removes carries out primary cleaning separately and gets the concentrate product, and shaking table further separates on the cleaner tailings.
3. the method for recovery wulfenite according to claim 1 is characterized in that first section flotation carry out scanning for 3-5 time, the product of the first, the 3rd to five subjobs concentrate carry out 1-2 time selected, products therefrom is final products with operation second time product.
4. the method for recovery wulfenite according to claim 1 is characterized in that floating agent is selected from: vulcanized sodium, sodium metasilicate, butyl xanthate, butyl ammonium aerofloat and pine tar.
5. the method for recovery wulfenite according to claim 1 is characterized in that the primary grinding fineness is-200 order 70-95%.
6. floating-heavy-floating combined process flow reclaims the method for wulfenite, it is characterized in that it has the following steps:
(1) with the ore ore grinding to molybdenum ore thing monomer dissociation;
(2) with floatation equipment and medicament molybdenum ore thing and gangue mineral are separated, the come-up product is the molybdenum concntrate product;
(3) with shaking table with molybdenum ore thing in the flotation tailing and gangue mineral further separate gravity treatment molybdenum concntrate product;
(4) with (3) step the further ore grinding of shaking table mine tailing, with floatation equipment and medicament further separate the molybdenum concntrate product.
7. the method for recovery wulfenite according to claim 6, it is characterized in that raw ore mill back, enter before the flotation operation with the desliming of going ahead of the rest of desliming device or flocculant, the sludge that removes carries out primary cleaning separately and gets the concentrate product, and shaking table further separates on the cleaner tailings.
8. the method for recovery wulfenite according to claim 6 is characterized in that first section flotation carry out scanning for 3-5 time, the product of the first, the 3rd to five subjobs concentrate carry out 1-2 time selected, products therefrom is final products with operation second time product.
9. the method for recovery wulfenite according to claim 6 is characterized in that floating agent is selected from: vulcanized sodium, sodium metasilicate, butyl xanthate, butyl ammonium aerofloat and pine tar.
10. the method for recovery wulfenite according to claim 6 is characterized in that the primary grinding fineness is-200 order 70-95%, and the secondary grinding fineness accounts for 70-95% for the 200-300 order.
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| CNB2006100486509A CN100406128C (en) | 2006-08-29 | 2006-08-29 | Floatation-gravitational separation-floatation combined process of recovering wulfenite |
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| CNB2006100486509A CN100406128C (en) | 2006-08-29 | 2006-08-29 | Floatation-gravitational separation-floatation combined process of recovering wulfenite |
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| CN100406128C true CN100406128C (en) | 2008-07-30 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824954A (en) * | 2011-06-14 | 2012-12-19 | 北京华夏建龙矿业科技有限公司 | Method for separating bright molybdenum and brass in refractory molybdenum copper sulphide ore |
| CN103157559B (en) * | 2013-03-26 | 2014-12-24 | 金堆城钼业股份有限公司 | Roughing process for increasing molybdenum recovery ratio |
| CN104209183B (en) * | 2014-08-30 | 2016-09-21 | 广东省工业技术研究院(广州有色金属研究院) | A kind of beneficiation method of wulfenite |
| CN105327772A (en) * | 2015-12-08 | 2016-02-17 | 中国地质科学院郑州矿产综合利用研究所 | Pre-desliming beneficiation method for fine-grain embedded molybdenum ore |
| CN105435956B (en) * | 2016-01-06 | 2018-04-24 | 昆明理工大学 | A kind of method that falcon centrifugal reselections are combined recycling wulfenite with flotation |
| CN114405657B (en) * | 2022-01-04 | 2022-09-27 | 长沙矿山研究院有限责任公司 | Method for separating molybdenite and galena through gravity-flotation combination |
| CN114589012B (en) * | 2022-03-28 | 2023-09-05 | 矿冶科技集团有限公司 | Copper-molybdenum-lead ore flotation flocculant, preparation method thereof and flocculation flotation method |
| CN115193573A (en) * | 2022-06-21 | 2022-10-18 | 广东省科学院资源利用与稀土开发研究所 | Beneficiation method for molybdenite rich in pumice |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316797A (en) * | 1980-09-10 | 1982-02-23 | Phillips Petroleum Company | Flotation agent and process |
| US4482480A (en) * | 1983-03-30 | 1984-11-13 | Phillips Petroleum Company | Polycarboxylic acid derivatives and uses |
| RO91283A2 (en) * | 1985-01-03 | 1987-03-30 | Institutul De Cercetari Inginerie Tehnologica Si Proiectare A Lucrarilor De Constructii Si Instalatii Pentru Minereuri,Ro | PROCESS FOR TREATING DEPOSITS WITH REDUCED CONTENT IN USEFUL ELEMENTS |
| CN1074486A (en) * | 1992-01-18 | 1993-07-21 | 戴元宁 | The chemical sorting method of wulfenite |
| CN1134856A (en) * | 1995-05-03 | 1996-11-06 | 湖南省冶金材料研究所 | Separation method for nickel and molybdenum in dressing-smelting combined nickel-molybdenum ore |
-
2006
- 2006-08-29 CN CNB2006100486509A patent/CN100406128C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316797A (en) * | 1980-09-10 | 1982-02-23 | Phillips Petroleum Company | Flotation agent and process |
| US4482480A (en) * | 1983-03-30 | 1984-11-13 | Phillips Petroleum Company | Polycarboxylic acid derivatives and uses |
| RO91283A2 (en) * | 1985-01-03 | 1987-03-30 | Institutul De Cercetari Inginerie Tehnologica Si Proiectare A Lucrarilor De Constructii Si Instalatii Pentru Minereuri,Ro | PROCESS FOR TREATING DEPOSITS WITH REDUCED CONTENT IN USEFUL ELEMENTS |
| CN1074486A (en) * | 1992-01-18 | 1993-07-21 | 戴元宁 | The chemical sorting method of wulfenite |
| CN1134856A (en) * | 1995-05-03 | 1996-11-06 | 湖南省冶金材料研究所 | Separation method for nickel and molybdenum in dressing-smelting combined nickel-molybdenum ore |
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