CN104858067A - Process for direct flotation and double reverse flotation of low-grade collophanite - Google Patents
Process for direct flotation and double reverse flotation of low-grade collophanite Download PDFInfo
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- CN104858067A CN104858067A CN201510298724.3A CN201510298724A CN104858067A CN 104858067 A CN104858067 A CN 104858067A CN 201510298724 A CN201510298724 A CN 201510298724A CN 104858067 A CN104858067 A CN 104858067A
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Abstract
The invention relates to a process for direct flotation and double reverse flotation of low-grade collophanite. The process comprises the first step of taking high sesquioxide silicon-calcium low-grade collophanite ores, performing crushing ore grinding and slurry mixing and then performing flotation; the second step of performing direct flotation desiliconization and obtaining direct flotation foam products; the third step of performing reverse flotation magnesium removal; and the fourth step of performing reverse flotation iron aluminum silicate mineral removal. Compared with the prior art, the process has the advantages that in phosphorite flotation, the content of only one gangue mineral can be reduced by the adoption of direct flotation and single reverse flotation while the content of silicate minerals, carbonate minerals and iron aluminum silicate minerals can be reduced by the direct flotation and double reverse flotation; low-magnesium low-sesquioxide low-silicon phosphate concentrate can be obtained through the process, mineral separation enrichment of silicon calcium collophanite is achieved successfully, and the utilization rate of phosphorus resources can be improved. The shortcoming that an existing flotation process cannot be applied to mineral separation of silicon-calcium collophanite too high in content of high sesquioxide is overcome.
Description
Technical field
The present invention relates to the positive bi-anti-symmetric matrix technique of a kind of low grade collophanite.
Background technology
Phosphorus ore is the requisite basic material producing phosphate fertilizer, phosphorus chemical product.China's phosphate rock resource reserves 167.86 hundred million tons, average grade 16.95%, the high grade ore that can directly utilize only can maintain more than ten years exploitation, and mid-low grade collophanite ore due to various mineral inlay relation complexity, disseminated grain size is thin, dissociative is poor, the feature that simultaneously the gangue mineral content such as silicate mineral, carbonate mineral and sesquichloride is high, its exploitation belong to global problem.In phosphate rock floating, adopt direct flotation and single reverse flotation can only reduce the content of wherein a kind of gangue mineral, be difficult to the phosphorus concentrate obtaining the low silicon of the low sesquichloride of low magnesium.
Summary of the invention
Problem to be solved by this invention is the deficiency for above-mentioned existing technology, provides the positive bi-anti-symmetric matrix de-magging of a kind of more rational, that separating effect is high silico-calcium matter type collophane to reduce the ore-dressing technique of sesquichloride and silicate mineral.
The present invention solves the problems of the technologies described above adopted solution: the positive bi-anti-symmetric matrix technique of a kind of low grade collophanite, includes following steps:
1) get high sesquialter oxide silicon calcareous type low grade collophanite ore, make its mineral composition monomer dissociation through broken ore grinding, carrying out sizing mixing to mass concentration is 20-40%, then enters flotation;
2) wherein, direct-flotation desiliconisation: in direct flotation system, adds inorganic base as adjusting agent and inhibitor, the pH value of adjustment ore pulp, then add direct flotation collecting agent, air flotation, stay material in flotation cell as direct flotation mine tailing, obtain direct flotation froth pulp;
3) reverse flotation de-magging: in gained direct flotation froth pulp, add sulfuric acid, its consumption is 6-20kg/t raw ore, the pH value of adjustment ore pulp, adds phosphoric acid as inhibitor simultaneously, suppresses phosphate mineral; Add collecting agent, carry out inflation reverse flotation de-magging to roughly select, to reduce the content of MgO of product in groove, gained froth pulp adds sulfuric acid to carry out de-magging reverse flotation and scans, in the groove scanned, product is reverse flotation de-magging chats, return reverse flotation de-magging to roughly select, froth pulp is de-magging reverse flotation mine tailing, and in de-magging initial separatory cell, product is low magnesium phosphorus mineral product;
4) reverse flotation deferrization aluminium silicate mineral: add collecting agent in low magnesium phosphorus mineral product, carry out reverse flotation to deviate from iron aluminium silicate mineral and roughly select, in groove, product is final phosphorus concentrate, froth pulp is scanned for deviating from iron aluminium silicate mineral mine tailing, in the groove scanned, product is chats, return iron aluminium silicate mineral to roughly select, the froth pulp scanned is that reverse flotation deviates from iron aluminium silicate mineral mine tailing, direct flotation mine tailing, de-magging reverse flotation mine tailing and iron aluminium silicate mineral mine tailing is merged to discharge and stacks.
By such scheme, in direct-flotation desiliconisation, the pH value of adjustment ore pulp be 9-11 with emersion phosphate mineral, reduce the content of silicate gangue mineral and SiO
2content, described inorganic base is sodium carbonate and waterglass, and sodium carbonate amount is 3-8.0kg/t raw ore, and waterglass consumption is 0.5-6.0kg/t raw ore; Described direct flotation collecting agent is fatty acid anion type collecting agent or fatty acid soaps anion collecting agent, and its consumption is 1.0-3.0kg/t raw ore.
By such scheme, in reverse flotation de-magging, the pH value 4-6 of adjustment ore pulp, to deviate from carbonate gangue mineral, reduces the content of MgO; Roughly select and add sulfuric acid as adjusting agent, consumption is 6-20kg/t raw ore; Phosphoric acid consumption is 0.0-5.0kg/t raw ore; Described collecting agent is fatty acid anion collecting agent, and consumption is 0.05-2.0kg/t raw ore; It is 3.0-6.kg/t raw ore that described de-magging reverse flotation scans the consumption adding sulfuric acid, deviates from carbonate gangue mineral.
By such scheme, described collecting agent is the cationic collecting agent of organic amine, and consumption is 0.05-0.8kg/t raw ore, deviates from deferrization aluminium silicate mineral.
By such scheme, the cationic collecting agent of described organic amine is a kind of in primary amine, polyamines, ether amine and ether polyamine or their mixing.
By such scheme, step 1) described in the primary chemical of high sesquialter silico-calcium matter type collophane ore consist of: P
2o
5grade is the mass content of 14-23%, MgO is 1-5%, SiO
2mass content be 12-30%, Fe
2o
3with Al
2o
3quality sum be greater than 5%.
The present invention has the following advantages compared with the prior art: in phosphate rock floating, adopt direct flotation and single reverse flotation can only reduce the content of wherein a kind of gangue mineral, adopt positive bi-anti-symmetric matrix can reduce the content of silicate mineral, carbonate mineral and iron aluminium silicate mineral, adopt this technique can obtain the phosphorus concentrate of the low silicon of the low sesquichloride of low magnesium, successfully realize the beneficiation enrichment of silico-calcium matter type collophane, the utilization rate of phosphor resource can be improved.Overcome existing floatation process and can not be applied to the higher silico-calcium matter type collophane ore dressing of high sesquialter oxide content.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Detailed description of the invention
Referring to Fig. 1, further describe concrete implementer's case of the present invention.
Embodiment 1
The positive bi-anti-symmetric matrix technique of a kind of low grade collophanite, its step is as follows:
1) the calcareous low grade collophanite stone of high sesquialter oxide silicon is got, wherein P
2o
5grade is the mass content of 14.45%, MgO is 5.0%, SiO
2mass content be 30%, Fe
2o
3with Al
2o
3quality sum be 5.26%, it is made to make its mineral composition monomer dissociation through broken ore grinding through broken ore grinding, carry out sizing mixing to mass concentration be 20%, then agitator is flowed into, in ore pulp, add consumption is respectively 3.0kg/t raw ore sodium carbonate, 6.0kg/t raw ore waterglass, the pH value of adjustment ore pulp is 9, adding consumption is again that 3.0kg/t anionic fatty acid soaps class collecting agent TSM-46 sizes mixing, enter direct flotation operation after sizing mixing and carry out air flotation, phosphate ore and carbonate mineral and part iron manosil AS mineral enter direct flotation froth pulp; Be direct flotation mine tailing in groove;
2) flotation froth flows into reverse flotation tank diameter, and in tank diameter, add consumption 20kg/t raw ore sulfuric acid, the pH value of adjustment ore pulp is 4, do not add phosphoric acid, size mixing, next agitator is flowed into after sizing mixing, be added in an amount of 0.05kg/t raw ore fatty acid anion collecting agent TSM-46 again to size mixing, after sizing mixing, material enters reverse flotation de-magging and roughly selects operation, reverse flotation is roughly selected froth pulp gravity flow and is entered de-magging reverse flotation and scan operation, scanning operation at reverse flotation, to add its consumption of sulfuric acid be 3.0kg/t raw ore, in the groove scanned, product is reverse flotation de-magging chats, return and enter reverse flotation de-magging and roughly select operation, it is de-magging reverse flotation mine tailing that reverse flotation scans froth pulp,
3) reverse flotation de-magging roughly selects next reverse flotation tank diameter of product introduction in operation slot, and in tank diameter, add consumption 0.05kg/t raw ore kiber alkyl amine collecting agent size mixing, after sizing mixing, material enters reverse flotation and deviates from iron aluminium silicate mineral and roughly select operation, in groove, product is final phosphorus concentrate, froth pulp is scanned for deviating from iron aluminium silicate mineral mine tailing, in the groove scanned, product is chats, return iron aluminium silicate mineral and roughly select operation, the froth pulp scanned is that reverse flotation deviates from iron aluminium silicate mineral mine tailing.Direct flotation mine tailing, de-magging reverse flotation mine tailing and iron aluminium silicate mineral mine tailing merge to discharge to be stacked.Final phosphorus concentrate is through concentrating, filtering, be drying to obtain the phosphorus concentrate finished product of the low iron aluminium of low Mg low-Si.
Embodiment 2
The positive bi-anti-symmetric matrix technique of a kind of low grade collophanite, its step is as follows:
1) the calcareous low grade collophanite stone of high sesquialter oxide silicon is got, wherein P
2o
5grade is the mass content of 18.25%, MgO is 2.5%, SiO
2mass content be 24.56%, Fe
2o
3with Al
2o
3quality sum be 6.26%, it is made to make its mineral composition monomer dissociation through broken ore grinding through broken ore grinding, carry out sizing mixing to mass concentration be 40%, then agitator is flowed into, in ore pulp, add consumption is respectively 8.0kg/t raw ore sodium carbonate, consumption is 0.5kg/t raw ore waterglass, the pH value of adjustment ore pulp is 11, adding consumption is again that 0.5kg/t anionic fatty acid soaps class collecting agent TSM-46 sizes mixing, enter direct flotation operation after sizing mixing and carry out air flotation, phosphate ore and carbonate mineral and part iron manosil AS mineral enter direct flotation froth pulp; Be direct flotation mine tailing in groove;
2) flotation froth flows into reverse flotation tank diameter, and in tank diameter, add consumption 6.0kg/t raw ore sulfuric acid, the pH value of adjustment ore pulp is 6, add phosphoric acid consumption 5.0kg/t, size mixing, next agitator is flowed into after sizing mixing, be added in an amount of 2.0kg/t raw ore anionic fatty acid soaps class collecting agent TSM-46 again to size mixing, after sizing mixing, material enters reverse flotation de-magging and roughly selects operation, reverse flotation is roughly selected froth pulp gravity flow and is entered de-magging reverse flotation and scan operation, scanning operation at reverse flotation, to add its consumption of sulfuric acid be 6.0kg/t raw ore, in the groove scanned, product is reverse flotation de-magging chats, return and enter reverse flotation de-magging and roughly select operation, it is de-magging reverse flotation mine tailing that reverse flotation scans froth pulp,
3) reverse flotation de-magging roughly selects next reverse flotation tank diameter of product introduction in operation slot, and in tank diameter, add consumption 0.8kg/t raw ore ether polyamine collecting agent size mixing, after sizing mixing, material enters reverse flotation and deviates from iron aluminium silicate mineral and roughly select operation, in groove, product is final phosphorus concentrate, froth pulp is scanned for deviating from iron aluminium silicate mineral mine tailing, in the groove scanned, product is chats, return iron aluminium silicate mineral and roughly select operation, the froth pulp scanned is that reverse flotation deviates from iron aluminium silicate mineral mine tailing.Direct flotation mine tailing, de-magging reverse flotation mine tailing and iron aluminium silicate mineral mine tailing merge to discharge to be stacked.Final phosphorus concentrate is through concentrating, filtering, be drying to obtain the phosphorus concentrate finished product of the low iron aluminium of low Mg low-Si.
Embodiment 3
The positive bi-anti-symmetric matrix technique of a kind of low grade collophanite, its step is as follows:
1) the calcareous low grade collophanite stone of high sesquialter oxide silicon, wherein P
2o
5grade is the mass content of about 23%, MgO is 1.0%, SiO
2mass content be 12%, Fe
2o
3with Al
2o
3quality sum be 8.26%, it is made to make its mineral composition monomer dissociation through broken ore grinding through broken ore grinding, carry out sizing mixing to mass concentration be 30%, then agitator is flowed into, in ore pulp, add consumption is respectively 5.5kg/t raw ore sodium carbonate, consumption is 3.5kg/t raw ore waterglass, the pH value of adjustment ore pulp is 10.25, adding consumption is again that 1.5kg/t anionic fatty acid soaps class collecting agent TSM-46 sizes mixing, enter direct flotation operation after sizing mixing and carry out air flotation, phosphate ore and carbonate mineral and part iron manosil AS mineral enter direct flotation froth pulp, be direct flotation mine tailing in groove,
2) flotation froth flows into reverse flotation tank diameter, and in tank diameter, add consumption 15kg/t raw ore sulfuric acid, the pH value of adjustment ore pulp is 5, add phosphoric acid consumption 3kg/t, size mixing, next agitator is flowed into after sizing mixing, be added in an amount of 1.2kg/t raw ore fatty acid anion collecting agent TSM-46 again to size mixing, after sizing mixing, material enters reverse flotation de-magging and roughly selects operation, reverse flotation is roughly selected froth pulp gravity flow and is entered de-magging reverse flotation and scan operation, scanning operation at reverse flotation, to add its consumption of sulfuric acid be 4.5kg/t raw ore, in the groove scanned, product is reverse flotation de-magging chats, return and enter reverse flotation de-magging and roughly select operation, it is de-magging reverse flotation mine tailing that reverse flotation scans froth pulp,
3) reverse flotation de-magging roughly selects next reverse flotation tank diameter of product introduction in operation slot, and in tank diameter, add consumption 0.3kg/t raw ore ether amine collector size mixing, after sizing mixing, material enters reverse flotation and deviates from iron aluminium silicate mineral and roughly select operation, in groove, product is final phosphorus concentrate, froth pulp is scanned for deviating from iron aluminium silicate mineral mine tailing, in the groove scanned, product is chats, return iron aluminium silicate mineral and roughly select operation, the froth pulp scanned is that reverse flotation deviates from iron aluminium silicate mineral mine tailing.Direct flotation mine tailing, de-magging reverse flotation mine tailing and iron aluminium silicate mineral mine tailing merge to discharge to be stacked.Final phosphorus concentrate is through concentrating, filtering, be drying to obtain the phosphorus concentrate finished product of the low iron aluminium of low Mg low-Si.
In the just two anti-floating technique of silicon calcium collophanite in embodiment 1-3 described in any one: direct-flotation desiliconisation flowage structure is one roughing operation, and reverse flotation de-magging flowage structure is the operation of one roughing once purging selection, scans middling recurrence; Reverse flotation iron aluminium silicate mineral flowage structure is that middling recurrence is scanned in the operation of one roughing once purging selection.
Embodiment 4: the just two anti-floating engineer testing one of Sichuan silicon calcium collophanite
Sichuan rock phosphate in powder, ore chemistry composition is in table 1.
The chemical composition of table 1 raw ore
Project | P 2O 5 | MgO | CaO | Al 2O 3 | Fe 2O 3 | CO 2 | SiO 2 |
Content/% | 22.19 | 3.15 | 36.58 | 5.11 | 3.76 | 2.47 | 22.03 |
As can be seen from the above table, Fe in this ore
2o
3+ Al
2o
3be 8.87%, belong to containing the higher rock phosphate in powder of sesquichloride, and wherein MgO 3.15% and SiO
2the content of 22.03% is also higher.Raw ore is through crusher in crushing extremely-2mm, pass through ore mill again, mog mog-0.074mm90.77%, carry out sizing mixing to mass concentration be 33.5%, direct flotation adopts one roughing, in ore pulp, add consumption is respectively 5.0kg/t raw ore sodium carbonate, consumption is 4.0kg/t raw ore waterglass, the pH value of adjustment ore pulp is 10.5, consumption is that 1.1kg/t raw ore collecting agent TSM-46 sizes mixing, enter direct flotation operation after sizing mixing and carry out air flotation, phosphate ore and carbonate mineral and part iron manosil AS mineral enter direct flotation froth pulp; Be direct flotation mine tailing in groove;
Consumption 9.0kg/t raw ore sulfuric acid is added again to direct flotation foam, add phosphoric acid consumption 4.0kg/t, collecting agent TSM-46 consumption 0.6kg/t, size mixing, after sizing mixing, material enters reverse flotation de-magging and roughly selects operation, reverse flotation is roughly selected froth pulp gravity flow and is entered de-magging reverse flotation and scan operation, scanning operation at reverse flotation, to add its consumption of sulfuric acid be 2.0kg/t raw ore, in the groove scanned, product is reverse flotation de-magging chats, return and enter reverse flotation de-magging and roughly select operation, it is de-magging reverse flotation mine tailing that reverse flotation scans froth pulp.
Reverse flotation de-magging roughly selects next reverse flotation tank diameter of product introduction in operation slot, and in tank diameter, add consumption 0.7kg/t raw ore organic amine collecting agent size mixing, after sizing mixing, material enters reverse flotation and deviates from iron aluminium silicate mineral and roughly select operation, in groove, product is final phosphorus concentrate, phosphorus concentrate grade is 30.30%, productive rate 38.66%, the rate of recovery 54.02%.Froth pulp is scanned for deviating from iron aluminium silicate mineral mine tailing, and in the groove scanned, product is chats, returns iron aluminium silicate mineral and roughly selects operation, and the froth pulp scanned is that reverse flotation deviates from iron aluminium silicate mineral mine tailing.Direct flotation mine tailing, de-magging reverse flotation mine tailing and iron aluminium silicate mineral mine tailing merge to discharge to be stacked.Final phosphorus concentrate is through concentrating, filtering, be drying to obtain the phosphorus concentrate finished product of the low iron aluminium of low Mg low-Si.
Embodiment 5: the just two anti-floating engineer testing two of Sichuan silicon calcium collophanite
Sichuan rock phosphate in powder, ore chemistry composition is in table 2.
The chemical composition of table 2 raw ore
Project | P 2O 5 | MgO | CaO | Al 2O 3 | Fe 2O 3 | CO 2 | SiO 2 |
Content/% | 22.19 | 3.15 | 36.58 | 5.11 | 3.76 | 2.47 | 22.03 |
As can be seen from the above table, Fe in this ore
2o
3+ Al
2o
3be 8.87%, belong to containing the higher rock phosphate in powder of sesquichloride, and wherein MgO 3.15% and SiO
2the content of 22.03% is also higher.Raw ore is through crusher in crushing extremely-2mm, pass through ore mill again, mog mog-0.074mm90.77%, carry out sizing mixing to mass concentration be 25.6%, direct flotation adopts one roughing, in ore pulp, add consumption is respectively 6.0kg/t raw ore sodium carbonate, consumption is 1.5kg/t raw ore waterglass, the pH value of adjustment ore pulp is 10.8, consumption is that 0.68kg/t raw ore collecting agent TSM-46 sizes mixing, enter direct flotation operation after sizing mixing and carry out air flotation, phosphate ore and carbonate mineral and part iron manosil AS mineral enter direct flotation froth pulp.Be direct flotation mine tailing in groove.
Consumption 12.0kg/t raw ore sulfuric acid is added again to direct flotation foam, add phosphoric acid consumption 3.0kg/t, collecting agent TSM-46 consumption 0.75kg/t, size mixing, after sizing mixing, material enters reverse flotation de-magging and roughly selects operation, reverse flotation is roughly selected froth pulp gravity flow and is entered de-magging reverse flotation and scan operation, scanning operation at reverse flotation, to add its consumption of sulfuric acid be 6.0kg/t raw ore, in the groove scanned, product is reverse flotation de-magging chats, return and enter reverse flotation de-magging and roughly select operation, it is de-magging reverse flotation mine tailing that reverse flotation scans froth pulp.
Reverse flotation de-magging roughly selects next reverse flotation tank diameter of product introduction in operation slot, and in tank diameter, add consumption 0.5kg/t raw ore organic amine collecting agent size mixing, after sizing mixing, material enters reverse flotation and deviates from iron aluminium silicate mineral and roughly select operation, in groove, product is final phosphorus concentrate, concentrate grade is 29.79%, productive rate 50.52%, the rate of recovery 60.40%, froth pulp is scanned for deviating from iron aluminium silicate mineral mine tailing, in the groove scanned, product is chats, return iron aluminium silicate mineral and roughly select operation, the froth pulp scanned is that reverse flotation deviates from iron aluminium silicate mineral mine tailing.Direct flotation mine tailing, de-magging reverse flotation mine tailing and iron aluminium silicate mineral mine tailing merge to discharge to be stacked.Final phosphorus concentrate is through concentrating, filtering, be drying to obtain the phosphorus concentrate finished product of the low iron aluminium of low Mg low-Si.
Claims (6)
1. the positive bi-anti-symmetric matrix technique of low grade collophanite, includes following steps:
1) get high sesquialter oxide silicon calcareous type low grade collophanite ore, make its mineral composition monomer dissociation through broken ore grinding, carrying out sizing mixing to mass concentration is 20-40%, then enters flotation;
2) wherein, direct-flotation desiliconisation: in direct flotation system, adds inorganic base as adjusting agent and inhibitor, the pH value of adjustment ore pulp, then add direct flotation collecting agent, air flotation, stay material in flotation cell as direct flotation mine tailing, obtain direct flotation froth pulp;
3) reverse flotation de-magging: in gained direct flotation froth pulp, add sulfuric acid, its consumption is 6-20kg/t raw ore, the pH value of adjustment ore pulp, adds phosphoric acid as inhibitor simultaneously, suppresses phosphate mineral; Add collecting agent, carry out inflation reverse flotation de-magging to roughly select, to reduce the content of MgO of product in groove, gained froth pulp adds sulfuric acid to carry out de-magging reverse flotation and scans, in the groove scanned, product is reverse flotation de-magging chats, return reverse flotation de-magging to roughly select, froth pulp is de-magging reverse flotation mine tailing, and in de-magging initial separatory cell, product is low magnesium phosphorus mineral product;
4) reverse flotation deferrization aluminium silicate mineral: add collecting agent in low magnesium phosphorus mineral product, carry out reverse flotation to deviate from iron aluminium silicate mineral and roughly select, in groove, product is final phosphorus concentrate, froth pulp is scanned for deviating from iron aluminium silicate mineral mine tailing, in the groove scanned, product is chats, return iron aluminium silicate mineral to roughly select, the froth pulp scanned is that reverse flotation deviates from iron aluminium silicate mineral mine tailing, direct flotation mine tailing, de-magging reverse flotation mine tailing and iron aluminium silicate mineral mine tailing is merged to discharge and stacks.
2. the positive bi-anti-symmetric matrix technique of low grade collophanite according to claim 1, is characterized in that, in direct-flotation desiliconisation, the pH value of adjustment ore pulp be 9-11 with emersion phosphate mineral, reduce the content of silicate gangue mineral and SiO
2content, described inorganic base is sodium carbonate and waterglass, and sodium carbonate amount is 3-8.0kg/t raw ore, and waterglass consumption is 0.5-6.0kg/t raw ore; Described direct flotation collecting agent is fatty acid anion type collecting agent or fatty acid soaps anion collecting agent, and its consumption is 1.0-3.0kg/t raw ore.
3. the positive bi-anti-symmetric matrix technique of low grade collophanite according to claim 1, is characterized in that, in reverse flotation de-magging, the pH value 4-6 of adjustment ore pulp, to deviate from carbonate gangue mineral, reduces the content of MgO; Roughly select and add sulfuric acid as adjusting agent, consumption is 6-20kg/t raw ore; Phosphoric acid consumption is 0.0-5.0kg/t raw ore; Described collecting agent is fatty acid anion collecting agent, and consumption is 0.05-2.0kg/t raw ore; It is 3.0-6.kg/t raw ore that described de-magging reverse flotation scans the consumption adding sulfuric acid, deviates from carbonate gangue mineral.
4. the positive bi-anti-symmetric matrix technique of low grade collophanite according to claim 1, is characterized in that, described collecting agent is the cationic collecting agent of organic amine, and consumption is 0.05-0.8kg/t raw ore, deviates from deferrization aluminium silicate mineral.
5. the positive bi-anti-symmetric matrix technique of low grade collophanite according to claim 4, is characterized in that, the cationic collecting agent of described organic amine is a kind of in primary amine, polyamines, ether amine and ether polyamine or their mixing.
6. the positive bi-anti-symmetric matrix technique of low grade collophanite according to claim 1, is characterized in that, step 1) described in the primary chemical of high sesquialter silico-calcium matter type collophane ore consist of: P
2o
5grade is the mass content of 14-23%, MgO is 1-5%, SiO
2mass content be 12-30%, Fe
2o
3with Al
2o
3quality sum be greater than 5%.
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CN113731641A (en) * | 2020-05-29 | 2021-12-03 | 中蓝连海设计研究院有限公司 | Positive flotation method suitable for fine fraction collophanite, regulator and application |
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