CN101759165A - Method for recovering P2O5 in phosphorus ore dressing mill tailings - Google Patents
Method for recovering P2O5 in phosphorus ore dressing mill tailings Download PDFInfo
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- CN101759165A CN101759165A CN200910102859A CN200910102859A CN101759165A CN 101759165 A CN101759165 A CN 101759165A CN 200910102859 A CN200910102859 A CN 200910102859A CN 200910102859 A CN200910102859 A CN 200910102859A CN 101759165 A CN101759165 A CN 101759165A
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- Prior art keywords
- mill tailings
- ore dressing
- tailings
- ore
- mill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 15
- 239000011574 phosphorus Substances 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 4
- 238000005188 flotation Methods 0.000 claims description 13
- 239000002367 phosphate rock Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 13
- 238000000227 grinding Methods 0.000 claims description 8
- 239000012141 concentrate Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 6
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000002686 phosphate fertilizer Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims description 2
- 239000013067 intermediate product Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000010494 dissociation reaction Methods 0.000 abstract description 2
- 230000005593 dissociations Effects 0.000 abstract description 2
- 239000000178 monomer Substances 0.000 abstract description 2
- 238000003801 milling Methods 0.000 abstract 2
- ZOGYOOUMDVKYLM-UHFFFAOYSA-N phosphane phosphorous acid Chemical compound P.OP(O)O ZOGYOOUMDVKYLM-UHFFFAOYSA-N 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000003814 drug Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for recovering P2O5 in phosphorus ore dressing mill tailings, which relates to a method for utilizing mill tailings. The method uses a hydraulic cyclone for pre-treating and dividing the mill tailings into two parts (mill tailings smaller than 56 mum and mill tailings larger than 56 mum) by aiming at the mill tailings with the P2O5 content higher than 5 percent produced in the carbonate type phosphorite phosphorus ore dressing process, wherein the part of mill tailings smaller than 56 mum with a large amount of residual ore dressing agents directly enters the ore dressing step, and the part of mill tailings larger than 56 mum is milled again by a ball mill to present the size smaller than 56 mum for entering the ore dressing step. The method comprises the following steps: firstly, separating the mill tailings according to the coarse grain grade and the fine grain grade; and carrying out secondary milling by the coarse grain grade part. The invention solves the problem of ore monomer dissociation, the fine grain grade part does not participate in the ore milling, and the over-pulverization and the argillization of the ore are reduced. Through grading the mill tailings with a large amount of residual ore dressing agents, the ore dressing agents can be regenerated and reutilized through being separated with the fine grains from the coarse grains, and few collecting agents or no collecting agent can be added for secondary ore dressing of the mill tailings. The method improves the phosphorus ore recovery rate, reduces the discharge amount of the mill tailings, conforms to the requirements of circulation and economy, and is suitable for ore dressing enterprises.
Description
Technical field
The present invention relates to ore dressing, simultaneously, also relate to mine tailing and utilize method, specifically, relate to from the rock phosphate in powder mine tailing and reclaim P
2O
5Method.
Background technology
Under the current techniques condition, after the ore dressing of appositional pattern phosphorite collophane, P in the mine tailing that often discharges
2O
5Content is all more than 6%, have in addition up to 15%, because P in the mine tailing
2O
5Content is higher, and the recovery utilization rate of resource is low on the one hand, and the waste resource does not realize the maximization of the utilization of resources; Beneficiation cost height on the other hand; Tailing heap is high-volume big simultaneously, and floor space is many.
Existing patented technology has " utilizing phosphorous mine tailing behind the flotation of phosphate rock to produce the method for phosphoric acid and byproduct building brick " ZL200610018780.8 number of Hubei Sanxin Phosphoric Acid Co., Ltd., this method is to add ground silica, coke powder (or colliery powder), kaolin powder to press mixing in the phosphorus mine tailing, add water, old, moulding, soak glaze after the oven dry, the loading of kiln car is gone into tunnel furnace; Obtain phosphorous vapor and CO through preheating, after heating up, absorb through hydrated tower again and obtain strong phosphoric acid, fragment of brick through heat exchange cooling back as the heavy-load bearing brick product.Another patent ZL200610146926.7 number of the said firm " phosphorus ore that directly reduces prepares the method for high-concentration phosphoric acid and the multiple silicon of by-product, aluminate products ", be in ground phosphate rock, to add ground silica, the coke powder, or coal dust, colliery powder, add kaolin or other additive, add the goods that water is made ball or made different shape behind the mixing, pack into after the drying and enter tunnel furnace in the refractory materials container, after preheating, intensification, obtain phosphorous vapor and CO, absorption obtains strong phosphoric acid through the hydration tower again, and the goods in the container obtain byproduct through cooling.Can be to P after mid low grade phosphate rock, the ore dressing
2O
5〉=6% mine tailing fully utilizes.But the P that said method reclaims
2O
5Limited, most of P
2O
5Be compressed in the goods.
Summary of the invention
The purpose of this invention is to provide P in a kind of recovery phosphorus ore dressing mill tailings
2O
5Method, to reduce the beneficiation cost of collophane, reduce resource consumption, improve the phosphor resource utilization rate.
The inventor is for the P that produces in the carbonate type phosphate rock beneficiated phosphate ore process
2O
5The mine tailing of content more than 5%, use the hydrocyclone preliminary treatment, mine tailing is divided into less than 56 μ m with greater than 56 μ m two parts, wherein be partly with most of remaining beneficiation reagent less than 56 μ m and directly enter ore dressing, after ball mill grinds less than 56 μ m again, enter together ore dressing greater than 56 μ m part.
The inventor is through inquiring into and test, and the method that provides comprises:
The first step is got flotation of phosphate rock P that process is got rid of
2O
5The Tailings Slurry A of content more than 5% uses classifying equipoment with its classification, obtains respectively greater than 56 μ m with less than two parts of 56 μ m;
Second step will be ground to less than more than the 56 μ m50% with grinding machinery greater than the part of 56 μ m, solid content was adjusted to 25% less than 56 μ m after partially mixed with the first step and obtained mine tailing slurry B;
The 3rd step poured Tailings Slurry B in the flotation device into, stirred and evenly mixed rear addings pH value adjusting agent, adjusted slurry pH to 4～5, added a small amount of WF-01 collecting agent stirring after 1-2 minute again, inflated and scrape bubble, treat foam scrape use up after, obtain containing P
2O
52%～4% flotation froth and groove include P
2O
5Two ore pulp products of 25%～30%;
The foam that the 4th step scraped is a true tailings, directly is disposed to tailings reservoir for piling; The ore pulp of staying in the flotation cell is exactly the phosphorus concentrate that is reclaimed, and send to obtain product behind thickening filtration.
In the first step of aforesaid method, described stage equipment is a hydrocyclone, or trommel screen or vibratory screening apparatus.
In second step of aforesaid method, described grinding machinery is ball mill or rod mill.
In the 3rd step of aforesaid method, described adjustment agent is the acid waste water that phosphate fertilizer and phosphorous chemical industry industry produce; Described beneficiation collecting agent is special-purpose carbonate type phosphorite collecting agent in reverse floatation.
Method of the present invention is separated thick, fine fraction earlier before spoil reclaming, and coarse fraction partly carries out secondary grinding, solves the monomer dissociation problem of mineral, and the fine fraction part does not participate in ore grinding, and the minimizing ore is crossed and pulverized and clay mineral; Simultaneously, contain the mine tailing (froth pulp) of abundant residues medicament through classification, remaining medicament can separate with coarse grain with fine fraction, avoids medicament destroyed in ore grinding, plays the effect of medicament regeneration, thereby realizes that spoil reclaming adds or do not add collecting agent less; After ore dressing, can obtain P
2O
5Phosphorus concentrate more than 26%, P in the mine tailing
2O
5Content can drop to below 4% from 6%, and the phosphorus recovery rate in ore-dressing can improve more than 3%.Method of the present invention can improve the rate of recovery of phosphate rock resource, reduces the tailings discharging amount, meets the requirement of recycling economy.Be applicable to the enterprise of Rock Phosphate (72Min BPL) exploitation and ore dressing.
Embodiment
Embodiment 1 gets a certain amount of phosphorus milltailings slag (P
2O
5Greater than 4%) under the wet screening condition, carry out classification with 300 mesh standard sieves, obtain greater than 56 μ m with less than 56 μ m two parts; Then will partly be milled to less than 56 μ m with 0.5～1 liter rod mill barreling less than 56 μ m and account for more than 50%, with back less than the partially mixed Tailings Slurry B that obtains of 56 μ m; Afterwards Tailings Slurry B is poured in 1 liter of flotation device, drive agitator, add simultaneously water and adjust pulp density to 20%～25%, add aqueous solution adjustment slurry pH to 4～6 that collecting agent (addition is by the 500g/t mine tailing) adds sulfur acid or phosphoric acid again; Medicament adds 30 seconds of complete rear stirring, opens charging valve and drives the scraper plate device after 30 seconds and scrape bubble, obtains to the greatest extent concentrate C and two kinds of products of foam mine tailing D in the groove until foam scraped.After weighing after respectively concentrate C and mine tailing D being filtered, dry, sampling is analyzed, and qualified concentrate is as product.
Example 2: with whole Tailings Slurries of flotation of phosphate rock factory ore dressing generation, adopt pressure to be delivered to hydroclone classification, be divided into greater than 56 μ m with less than 56 μ m two parts ore pulps, wherein directly enter flotation device less than 56 μ m part ore pulp overflows in cyclone and carry out again sorting; Then enter ball mill ground again behind the ore grinding greater than 56 μ m part ore pulp sand settings, again through hydroclone classification, enter flotation less than the ore pulp of 56 μ m by overflow, return again the ball mill formation closed cycle of regrinding greater than 56 μ m part ore pulps are heavy; The ore pulp that enters ore dressing need not add collecting agent, adds a small amount of acid waste water and regulates slurry pH 4～6, scrapes continuously bubble, finally can obtain P
2O
5Be 25.00%～30.00%, MgO is 0.8%～3.5% phosphorus concentrate, whole process P
2O
5The rate of recovery has improved 2%～4%.
Claims (4)
1. one kind is reclaimed P in the phosphorus ore dressing mill tailings
2O
5Method, it is characterized in that this method comprises:
The first step is got the P that the flotation of phosphate rock process is got rid of
2O
5The Tailings Slurry A of content more than 5% uses classifying equipoment with its classification, obtains respectively greater than 56 μ m with less than two parts of 56 μ m;
Second step will be ground to less than 56 μ m with grinding machinery greater than the part of 56 μ m and account for more than 50%, solid content will be adjusted to 25% less than 56 μ m after partially mixed with the first step and obtain mine tailing slurry B;
The 3rd step poured Tailings Slurry B in the flotation device into, stirred and evenly mixed rear adding pH value adjusting agent, adjusted slurry pH to 4～5, added a small amount of WF-01 collecting agent again and stirred after 1～2 minute, inflated and scrape bubble, treated to obtain containing P after foam is scraped to the greatest extent
2O
52%～4% flotation froth and groove include P
2O
5Two intermediate products of 26%～30% ore pulp;
The foam that the 4th step scraped is a true tailings, directly is disposed to tailings reservoir for piling; The ore pulp of staying in the flotation cell is exactly the phosphorus concentrate that is reclaimed, and send to obtain product behind thickening filtration.
2. the method for claim 1 is characterized in that in the first step, and described stage equipment is a hydrocyclone, or trommel screen or vibratory screening apparatus.
3. the method for claim 1 is characterized in that described grinding machinery is ball mill or rod mill in second step.
4. the method for claim 1 is characterized in that in the 3rd step, and described adjustment agent is the acid waste water that phosphate fertilizer and phosphorous chemical industry industry produce; Described beneficiation collecting agent is special-purpose carbonate type phosphorite collecting agent in reverse floatation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102859A CN101759165A (en) | 2009-11-17 | 2009-11-17 | Method for recovering P2O5 in phosphorus ore dressing mill tailings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910102859A CN101759165A (en) | 2009-11-17 | 2009-11-17 | Method for recovering P2O5 in phosphorus ore dressing mill tailings |
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| Publication Number | Publication Date |
|---|---|
| CN101759165A true CN101759165A (en) | 2010-06-30 |
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|---|---|---|---|
| CN200910102859A Pending CN101759165A (en) | 2009-11-17 | 2009-11-17 | Method for recovering P2O5 in phosphorus ore dressing mill tailings |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600965A (en) * | 2012-03-28 | 2012-07-25 | 瓮福（集团）有限责任公司 | Method for recycling phosphorus from phosphate tailings with high magnesium content |
| CN103418501A (en) * | 2013-08-02 | 2013-12-04 | 甘肃瓮福化工有限责任公司 | Beneficiation method for improving phosphorus recovery rate |
| CN103949352A (en) * | 2014-05-06 | 2014-07-30 | 云南磷化集团有限公司 | Method for applying phosphorus sludge acid in phosphorite flotation regulator |
| CN104707734A (en) * | 2014-12-17 | 2015-06-17 | 云南磷化集团有限公司 | Process for reducing collophanite flotation tailing grade |
| CN104858068A (en) * | 2015-06-09 | 2015-08-26 | 中蓝连海设计研究院 | Method for processing phosphate rock tailing by adopting single direct flotation process |
| CN106622673A (en) * | 2016-12-29 | 2017-05-10 | 云南磷化集团有限公司 | Wet-process sludge phosphoric acid used as pH regulator in reverse flotation of phosphorite |
| CN106694234A (en) * | 2016-12-29 | 2017-05-24 | 云南磷化集团有限公司 | Process employing phosphogypsum residue field backwater as pH regulator in reverse flotation of phosphorite |
| CN111135947A (en) * | 2020-01-03 | 2020-05-12 | 云南磷化集团有限公司 | Collophanite flotation tailing treatment process |
| CN114653478A (en) * | 2022-04-02 | 2022-06-24 | 云南磷化集团有限公司 | Method for recovering phosphate concentrate from low-phosphorus tailings of collophanite |
| CN115924866A (en) * | 2022-12-27 | 2023-04-07 | 贵州瓮福化学有限责任公司 | Method for producing yellow phosphorus from cyclone tailing pellet ore |
-
2009
- 2009-11-17 CN CN200910102859A patent/CN101759165A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102600965A (en) * | 2012-03-28 | 2012-07-25 | 瓮福（集团）有限责任公司 | Method for recycling phosphorus from phosphate tailings with high magnesium content |
| CN103418501A (en) * | 2013-08-02 | 2013-12-04 | 甘肃瓮福化工有限责任公司 | Beneficiation method for improving phosphorus recovery rate |
| CN103949352B (en) * | 2014-05-06 | 2017-01-11 | 云南磷化集团有限公司 | Method for applying phosphorus sludge acid in phosphorite flotation regulator |
| CN103949352A (en) * | 2014-05-06 | 2014-07-30 | 云南磷化集团有限公司 | Method for applying phosphorus sludge acid in phosphorite flotation regulator |
| CN104707734B (en) * | 2014-12-17 | 2017-02-22 | 云南磷化集团有限公司 | Process for reducing collophanite flotation tailing grade |
| CN104707734A (en) * | 2014-12-17 | 2015-06-17 | 云南磷化集团有限公司 | Process for reducing collophanite flotation tailing grade |
| CN104858068A (en) * | 2015-06-09 | 2015-08-26 | 中蓝连海设计研究院 | Method for processing phosphate rock tailing by adopting single direct flotation process |
| CN106622673A (en) * | 2016-12-29 | 2017-05-10 | 云南磷化集团有限公司 | Wet-process sludge phosphoric acid used as pH regulator in reverse flotation of phosphorite |
| CN106694234A (en) * | 2016-12-29 | 2017-05-24 | 云南磷化集团有限公司 | Process employing phosphogypsum residue field backwater as pH regulator in reverse flotation of phosphorite |
| CN111135947A (en) * | 2020-01-03 | 2020-05-12 | 云南磷化集团有限公司 | Collophanite flotation tailing treatment process |
| CN114653478A (en) * | 2022-04-02 | 2022-06-24 | 云南磷化集团有限公司 | Method for recovering phosphate concentrate from low-phosphorus tailings of collophanite |
| CN114653478B (en) * | 2022-04-02 | 2023-11-17 | 云南磷化集团有限公司 | Method for recycling phosphate concentrate from collophanite low-phosphate tailings |
| CN115924866A (en) * | 2022-12-27 | 2023-04-07 | 贵州瓮福化学有限责任公司 | Method for producing yellow phosphorus from cyclone tailing pellet ore |
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Open date: 20100630 |