CN110142145A - The technique of sesquichloride and magnesium addition in a kind of flotation removing silicon calcium collophanite - Google Patents
The technique of sesquichloride and magnesium addition in a kind of flotation removing silicon calcium collophanite Download PDFInfo
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- CN110142145A CN110142145A CN201910482913.4A CN201910482913A CN110142145A CN 110142145 A CN110142145 A CN 110142145A CN 201910482913 A CN201910482913 A CN 201910482913A CN 110142145 A CN110142145 A CN 110142145A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/021—Froth-flotation processes for treatment of phosphate ores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/06—Phosphate ores
Abstract
The invention discloses the techniques of sesquichloride and magnesium addition in a kind of flotation removing silicon calcium collophanite, comprising the following steps: 1) broken, ore grinding and water is added to size mixing silicon calcium collophanite, into positive and negative floatation system；2) direct flotation roughing: while sodium carbonate and sodium metasilicate are added respectively as pH regulator and phosphate inhibitors, then add direct flotation collecting agent, the material in flotation cell is stayed in after air flotation as direct flotation rougher tailings, obtains roughing froth pulp；3) direct flotation is selected and scans: sodium metasilicate is added into roughing froth pulp, direct flotation is selected twice, obtains selected froth pulp, then cleaner tailings twice mixed to size mixing and is inflated direct flotation and scans；4) reverse flotation: adding inhibitor WFS in Xiang Jingxuan froth pulp, pH value is adjusted to add collecting agent WF-01 again, carries out reverse flotation de-magging.The present invention has many advantages, such as that floating agent dosage is lower, does not heat, and proposes phosphorus removal of impurities suitable for different type middle-low grade silicon calcium collophanite.
Description
Technical field
The invention belongs to phosphate rock floating technical fields, and in particular to semi-oxidized again in a kind of flotation removing silicon calcium collophanite
The technique of object and magnesium addition.
Background technique
Phosphorus ore is a kind of natural materials of complexity, its different chemical constituent and performance difference are huge with mineral deposit for the phosphorus ore origin cause of formation,
Directly affect the technical indicator and economic benefit of phosphoric acid and phosphate production.In the entire phosphorus ore reserves in China, middle-low grade glue
Phosphorus ore accounts for 80%, is the main body of China's rock phosphate in powder, especially silicon calcium collophanite, objectionable impurities MgO, SiO2And it is semi-oxidized again
Object (R2O3) content is high, the apatite majority in ore exists in colloid, and with mutual cementing, the symbiosis such as dolomite, clay mineral
Relationship is complicated, can to dissociate insufficient between mineral under conditions of grinding fineness is relatively thick or not dissociate, lead to MgO and R2O3
In the easy product into based on collophane, phosphorus concentrate grade is influenced in phosphorus concentrate as entered, into time of influence phosphorus in tailing
Yield loses resource.Especially be embodied in downstream relieving haperacidity, system fertilizer influence on, especially sesquichloride and poisonous metal from
Son enters relieving haperacidity, makes the quality that will directly influence final acid, fertilizer product in fertile technique, and adverse effect should not be underestimated, therefore
It realizes most important for phosphatic compound fertilizer enterprise to the efficient separation of middle-low grade silico-calcium matter collophane.
In conventional wet acid-making process, the life of calcium sulphate crystal is not only interfered in the presence of sesquichloride and magnesia
It is long, the excessive influence filter efficiency of phosphoric acid viscosity is caused, the loss of phosphorus during subsequent concentration can be also brought, lead to the wave of phosphor resource
Take.Currently, with sulfuric acid decomposition phosphorus ore relieving haperacidity fertilizer to R in phosphorus concentrate203And the content requirement of MgO is: a kind of phosphorus concentrate R203It is small
In 2.5%, MgO less than 0.8%；Two class phosphorus concentrate R203Less than 3.0%, MgO less than 1.5%.
Currently, the calcium and magnesiums impurity such as single reverse flotation removing carbonate of tradition has been difficult to meet downstream relieving haperacidity fertilizer to phosphorus essence
The requirement of mine, it is necessary to develop suitable and practical beneficiation method and carry out the objectionable impurities such as efficient removal silicon, aluminium, iron, magnesium.In phosphorus ore
Flotation mentions in phosphorus impurity removal process, and direct flotation proposes phosphorus removal of impurities relatively maturation and part has been carried out industrialization, but tradition is top-uped
Select technics comparing complicated, collecting agent type is more, foam is more and dosage is big, and final phosphorus concentrate is difficult to settle, subsequent job difficulty
The disadvantages of managing, needing to heat flotation, beneficiation cost raising when environment temperature is lower, restricts its development.And reverse flotation mentions phosphorus and removes
Miscellaneous simple process, dosing save, and meet " floating few suppression is more " principle, and the requirement to temperature is low, and concentrate is easy to subsequent processing, but
It is merely resting on the efficient separation to carbonate gangue mineral, it is pre- to be above frequently necessary to raw ore desliming in the application of the impurity such as desiliconization aluminium
Processing or process desliming and reagent consumption is at high cost, foam effect is poor.In addition, domestic floating in direct reverse flotation, bi-anti-symmetric matrix, magnetic
The exploratory development of the process integrations such as choosing, gravity treatment and application is upper also relates to, but that there is also dosings is big, phosphorus loss is big, investment
The disadvantages of at high cost, industrial applications rarely have.As to disclose a kind of silico-calcium matter low grade collophanite positive and negative by CN 104907183A
Floatation process is adopted with the amide-containing fatty acid soaps collecting agent flotation collector that is positive using amphoteric collector as collecting agent in reverse floatation
The closed circuit flow of middling recurrence is swept with a positive and a negative, though the dosage of simple process, collecting agent and inhibitor is larger, medicament
Higher cost；In addition, certain phosphorus ore around Sichuan region only discloses two embodiments, in the technique to the phosphorus ore in other regions
Using being not directed to, and non-emphasis provide sesquichloride and magnesia in phosphorus concentrate product go division result；CN
102179308A discloses a kind of beneficiation method for removing iron, aluminum sesquioxide in collophane, and this method is based on direct reverse flotation
Technique+reverse flotation takes off R2O3Joint process, direct reverse flotation collecting agent select normal fat acids, utilize isomery mixing rouge
Fat amine and synergist mixed alcohol remove in fact as sesquichloride collecting agent for the sesquichloride of Yunnan difference mining area phosphorus ore
It tramples to apply and has good effect, but be not directed to the practical application of non-Yunnan other types silicon calcium quality ore, universality is not
It is fully demonstrated, and the pH regulator dosage that direct reverse flotation technical process uses is larger, reagent cost is high；CN
206325688U discloses flotation-magnetic separation with CN 106179731A respectively and couples sesquichloride and oxidation in removing collophane
The method of sesquichloride and magnesium in the single reverse flotation coupling abjection phosphorus ore of the system and high-gradient magnetic separation-of magnesium, the introducing of magnetic separation
Equipment investment cost will necessarily be increased to a certain extent, and only applicable sesquichloride content is below 4 for the process integration
Rock phosphate in powder, is not directed to the Application Example of high sesquichloride collophane, and universality is narrow.
In consideration of it, developing a kind of equipment and process flow is simple, dosing is low, universality range is wide, concentrate product refers to
The process of the removing sesquichloride and magnesium addition marked, is to fast implement the industrialized effective way of complicated refractory cellophane
Diameter and phosphorus ore mention phosphorus and clean difficulties urgently to be resolved.
Summary of the invention
Problem to be solved by this invention is to provide a kind of more reasonable, separating effect for above-mentioned prior art deficiency
Better middle-low grade silicon calcium collophanite direct reverse flotation desiliconization, dealuminzation, deferrization, de-magging ore-dressing technique.
The technical proposal adopted by the invention to solve the above technical problems is that: a kind of flotation removing silicon calcium collophanite is provided
The technique of middle sesquichloride and magnesium addition, it is characterised in that the following steps are included:
1) by silicon calcium collophanite, broken, ore grinding to -0.074mm accounts for 75-82%, adds water that size mixing to mass concentration be 25-35%,
It carries out Phosphate minerals into positive and negative floatation system to separate with aluminium, iron, magnesium addition, realization proposes phosphorus removal of impurities；
2) direct flotation roughing: while sodium carbonate and sodium metasilicate are added respectively as pH regulator and phosphate inhibitors, then are added
Direct flotation collecting agent stays in the material in flotation cell after air flotation as direct flotation rougher tailings, obtains roughing froth pulp；
3) direct flotation is selected and scans: adding sodium metasilicate into roughing froth pulp, does not add direct flotation collecting agent, twice successively
It is selected to inflate direct flotation, obtains selected froth pulp, then the cleaner tailings for staying in slot bottom twice is mixed to size mixing and is inflated just
Flotation is scanned, and sodium metasilicate is first added when scanning, then adds direct flotation collecting agent, and the froth pulp after scanning is direct flotation chats,
Direct flotation roughing is returned to, staying in slot is that direct flotation scans tailing；
4) reverse flotation: adding inhibitor WFS in Xiang Jingxuan froth pulp, adjusts slurry pH, then add collecting agent WF-01, into
Row reverse flotation de-magging, staying in product in slot is concentrate through reverse flotation, and froth pulp is reverse flotation tailing.
According to the above scheme, the sodium silicate modulus is in 2-3.5.
According to the above scheme, sodium carbonate amount described in step 2 is 1.5-3.0kg/t raw ore, amount of sodium silicate 2.5-
3.5kg/t raw ore.
According to the above scheme, the direct flotation ore pulp solution ph is in 9-11.
According to the above scheme, the direct flotation collecting agent is the mixture of unsaturated oleate soap and a variety of froth modifiers,
Belong to composite anion collecting agent, dosage is 1.5-2.5kg/ raw ore, and slurry temperature is 10-25 DEG C.
According to the above scheme, the selected amount of sodium silicate of first time described in step 3) is 1.0-2.0kg/t raw ore, second of essence
Selecting amount of sodium silicate is 0.5-1.5 kg/t raw ore, selected not add direct flotation collecting agent.
According to the above scheme, it is 0.5-1.5kg/t raw ore that amount of sodium silicate is scanned described in step 3), and direct flotation collecting agent is used
Amount is 0.1-0.3kg/t raw ore.
According to the above scheme, reverse flotation inhibitor WFS described in step 4) is the Phosphate Fertilizer Industry acid waste water of pH value 1-2, is used
Amount is 80-120L/t raw ore, and reverse flotation pH is controlled in 5.0-5.5.
According to the above scheme, collecting agent in reverse floatation WF-01 described in step 4) is industrial saturated fatty acid soaps anion
Collecting agent, dosage are 0.1-0.2kg/t raw ore.
It is another object of the present invention to provide above-mentioned techniques in FLOTATION SEPARATION quartz, dolomite, sesquichloride etc.
Application on impurity.For from Selective Separation phosphate in silicon calcium collophanite and objectionable impurities, technique of the invention
Method effect is more significant.Process of the invention can be used when environment temperature is lower, not need to heat, for clay content
Big collophane does not need predictive desliming or process desliming, under dosing low consumption, can obtain efficient separating effect.
The present invention includes compared with the prior art
1) dosing is low, and the total dosage of direct flotation collecting agent is no more than 3kg/t raw ore, and collecting agent in reverse floatation dosage is no more than
0.2kg/t raw ore, the collector dosage than routine direct reverse flotation technique save 1/3；
2) heating flotation is not needed when environment temperature is lower, while being also overcomed bi-anti-symmetric matrix technique and being wanted desliming is pretreated to lack
Point；
3) preparation equipment with high investment it is not related to, traditional flotation device, which can be realized, to be efficiently separated, and provided direct reverse flotation technique is suitable
Phosphorus removal of impurities is proposed for different type middle-low grade silicon calcium collophanite, universality range is wide.
Detailed description of the invention
Fig. 1 is flotation process figure of the invention.
Specific embodiment
The present invention is specifically described by embodiment below as Fig. 1, it is necessary to which indicated herein is following implementation
Example is only intended to that the present invention is further detailed, and should not be understood as limiting the scope of the invention, the field
Some nonessential modifications and adaptations that professional technician is made according to foregoing invention content, still fall within protection of the invention
Range.
Embodiment 1:
For Guizhou silicon calcium collophanite, raw ore P2O5 23.40%、MgO 2.82%、SiO2 17.76%、R2O3 5.61%, it presses
According to the processing of following process:
1) crushing raw ore, ore grinding are accounted for 80% to -0.074mm, adds water that size mixing to mass concentration be 25%；20 DEG C of slurry temperature；
Sodium silicate modulus 2.5；
2) direct flotation one roughing: being added 2.0kg/t raw ore sodium carbonate and 3.0kg/t raw ore sodium metasilicate, and pH is controlled 9.5, then
1.5kg/t raw ore unsaturation oleic acid soaps anionic collector is added, the material in flotation cell is stayed in after air flotation as just
Roughing flotation tailing, phosphate and carbonate mineral and part iron aluminium silicate mineral enter roughing froth pulp；
3) direct flotation is selected twice and once purging selection: adding 1.0kg/t raw ore sodium metasilicate into roughing froth pulp, carries out primary
It is selected to inflate direct flotation, is primary cleaner tailing in acquisition primary cleaning froth pulp, slot；Add into primary cleaning froth pulp
Add 1.0kg/t raw ore sodium metasilicate, progress defuelling direct flotation is selected, is secondary fine in acquisition recleaning froth pulp, slot
Select tailing；Again the cleaner tailings stayed in twice in slot is mixed to size mixing and is inflated direct flotation once purging selection, addition when scanning
1.0kg/t raw ore sodium metasilicate, then 0.2kg/t raw ore unsaturation oleic acid soaps composite anion collecting agent is added, after once purging selection
Froth pulp be direct flotation chats, return to direct flotation roughing, product is that direct flotation scans tailing in slot；
4) a reverse flotation de-magging: adding 100L/t raw ore inhibitor WFS in Xiang Jingxuan froth pulp, adjustment slurry pH is
5.0, then the industrial saturated fatty acid soaps anionic collector WF-01 of 0.15kg/t raw ore is added, reverse flotation de-magging is carried out, is stayed
Product is concentrate through reverse flotation in slot, and froth pulp is reverse flotation tailing.
Through above-mentioned one it is thick two it is single-minded it is counter sweep closed circuit flow, FLOTATION SEPARATION result shown in table 1 may finally be obtained.
1 raw ore of table, concentrate and tailings product index
| Name of product | Yield (%) | P2O5(%) | Yield (%) | MgO(%) | SiO2(%) | R2O3(%) |
| Concentrate | 58.15 | 32.31 | 80.29 | 0.79 | 9.32 | 2.86 |
| Tailing | 41.85 | 11.02 | 19.71 | 5.64 | 29.49 | 9.43 |
| Raw ore | 100.00 | 23.40 | 100.00 | 2.82 | 17.76 | 5.61 |
Embodiment 2:
For Guizhou silicon calcium collophanite, raw ore P2O5 21.90%、MgO 2.77%、SiO2 18.02%、R2O3 6.42%, it presses
According to the processing of following process:
1) crushing raw ore, ore grinding are accounted for 78% to -0.074mm, adds water that size mixing to mass concentration be 27%；23 DEG C of slurry temperature；
Sodium silicate modulus 2.0；
2) direct flotation one roughing: being added 2.2kg/t raw ore sodium carbonate and 2.8kg/t raw ore sodium metasilicate, and pH is controlled 10.0, then
2.0kg/t raw ore unsaturation oleic acid soaps anionic collector is added, the material in flotation cell is stayed in after air flotation as just
Roughing flotation tailing, phosphate and carbonate mineral and part iron aluminium silicate mineral enter roughing froth pulp；
3) direct flotation is selected twice and once purging selection: adding 1.2kg/t raw ore sodium metasilicate into roughing froth pulp, carries out primary
It is selected to inflate direct flotation, is primary cleaner tailing in acquisition primary cleaning froth pulp, slot；Add into primary cleaning froth pulp
Add 1.0kg/t raw ore sodium metasilicate, progress defuelling direct flotation is selected, is secondary fine in acquisition recleaning froth pulp, slot
Select tailing；Again the cleaner tailings stayed in twice in slot is mixed to size mixing and is inflated direct flotation once purging selection, addition when scanning
0.8kg/t raw ore sodium metasilicate, then 0.25kg/t raw ore unsaturation oleic acid soaps composite anion collecting agent is added, after once purging selection
Froth pulp be direct flotation chats, return to direct flotation roughing, product is that direct flotation scans tailing in slot；
4) a reverse flotation de-magging: adding 110L/t raw ore inhibitor WFS in Xiang Jingxuan froth pulp, adjustment slurry pH is
5.5, then the industrial saturated fatty acid soaps composite anion collecting agent WF-01 of 0.2kg/t raw ore is added, it is de- to carry out reverse flotation
Magnesium, staying in product in slot is concentrate through reverse flotation, and froth pulp is reverse flotation tailing.
Through above-mentioned one it is thick two it is single-minded it is counter sweep closed circuit flow, FLOTATION SEPARATION result shown in table 2 may finally be obtained.
2 raw ore of table, concentrate and tailings product index
| Name of product | Yield (%) | P2O5(%) | Yield (%) | MgO(%) | SiO2(%) | R2O3(%) |
| Concentrate | 50.69 | 32.62 | 75.50 | 0.67 | 8.07 | 3.11 |
| Tailing | 49.31 | 10.88 | 24.50 | 4.93 | 28.25 | 9.82 |
| Raw ore | 100.00 | 21.90 | 100.00 | 2.77 | 18.02 | 6.42 |
Embodiment 3:
For Hubei silicon calcium collophanite, raw ore P2O5 23.35%、MgO 2.72%、SiO2 18.65%、R2O3 5.78%, it presses
According to the processing of following process:
1) crushing raw ore, ore grinding are accounted for 82% to -0.074mm, adds water that size mixing to mass concentration be 25%；25 DEG C of slurry temperature；
Sodium silicate modulus 3.0；
2) direct flotation one roughing: being added 3.0kg/t raw ore sodium carbonate and 3.5kg/t raw ore sodium metasilicate, and pH is controlled 11, then plus
Enter 2.5kg/t raw ore unsaturation oleic acid soaps anionic collector, the material stayed in flotation cell after air flotation, which is used as, to top-up
Rougher tailings, phosphate and carbonate mineral and part iron aluminium silicate mineral is selected to enter roughing froth pulp；
3) direct flotation is selected twice and once purging selection: adding 2.0kg/t raw ore sodium metasilicate into roughing froth pulp, carries out primary
It is selected to inflate direct flotation, is primary cleaner tailing in acquisition primary cleaning froth pulp, slot；Add into primary cleaning froth pulp
Add 1.5kg/t raw ore sodium metasilicate, progress defuelling direct flotation is selected, is secondary fine in acquisition recleaning froth pulp, slot
Select tailing；Again the cleaner tailings stayed in twice in slot is mixed to size mixing and is inflated direct flotation once purging selection, addition when scanning
1.5kg/t raw ore sodium metasilicate, then 0.3kg/t raw ore unsaturation oleic acid soaps composite anion collecting agent is added, after once purging selection
Froth pulp be direct flotation chats, return to direct flotation roughing, product is that direct flotation scans tailing in slot；
4) a reverse flotation de-magging: adding 120L/t raw ore inhibitor WFS in Xiang Jingxuan froth pulp, adjustment slurry pH is
5.0, then the industrial saturated fatty acid soaps anionic collector WF-01 of 0.15kg/t raw ore is added, reverse flotation de-magging is carried out, is stayed
Product is concentrate through reverse flotation in slot, and froth pulp is reverse flotation tailing.
Through above-mentioned one it is thick two it is single-minded it is counter sweep closed circuit flow, FLOTATION SEPARATION result shown in table 3 may finally be obtained.
3 raw ore of table, concentrate and tailings product index
| Name of product | Yield (%) | P2O5(%) | Yield (%) | MgO(%) | SiO2(%) | R2O3(%) |
| Concentrate | 56.65 | 33.38 | 80.98 | 0.60 | 8.46 | 2.44 |
| Tailing | 43.35 | 10.24 | 19.02 | 5.49 | 31.97 | 10.14 |
| Raw ore | 100.00 | 23.35 | 100.00 | 2.72 | 18.65 | 5.78 |
Embodiment 4:
For Yunnan silicon calcium collophanite, raw ore P2O5 24.79%、MgO 3.43%、SiO2 10.73%、R2O3 3.34%, it presses
According to the processing of following process:
1) crushing raw ore, ore grinding are accounted for 77% to -0.074mm, adds water that size mixing to mass concentration be 30%；21 DEG C of slurry temperature；
Sodium silicate modulus 2.5；
2) direct flotation one roughing: being added 1.5kg/t raw ore sodium carbonate and 2.5kg/t raw ore sodium metasilicate, and pH is controlled 9, then plus
Enter 1.5kg/t raw ore unsaturation oleic acid soaps anionic collector, the material stayed in flotation cell after air flotation, which is used as, to top-up
Rougher tailings, phosphate and carbonate mineral and part iron aluminium silicate mineral is selected to enter roughing froth pulp；
3) direct flotation is selected twice and once purging selection: adding 1.0kg/t raw ore sodium metasilicate into roughing froth pulp, carries out primary
It is selected to inflate direct flotation, is primary cleaner tailing in acquisition primary cleaning froth pulp, slot；Add into primary cleaning froth pulp
Add 0.5kg/t raw ore sodium metasilicate, progress defuelling direct flotation is selected, is secondary fine in acquisition recleaning froth pulp, slot
Select tailing；Again the cleaner tailings stayed in twice in slot is mixed to size mixing and is inflated direct flotation once purging selection, addition when scanning
0.5kg/t raw ore sodium metasilicate, then 0.1kg/t raw ore unsaturation oleic acid soaps composite anion collecting agent is added, after once purging selection
Froth pulp be direct flotation chats, return to direct flotation roughing, product is that direct flotation scans tailing in slot；
4) a reverse flotation de-magging: adding 100L/t raw ore inhibitor WFS in Xiang Jingxuan froth pulp, adjustment slurry pH is
5.0, then the industrial saturated fatty acid soaps anionic collector WF-01 of 0.10kg/t raw ore is added, reverse flotation de-magging is carried out, is stayed
Product is concentrate through reverse flotation in slot, and froth pulp is reverse flotation tailing.
Through above-mentioned one it is thick two it is single-minded it is counter sweep closed circuit flow, FLOTATION SEPARATION result shown in table 4 may finally be obtained.
4 raw ore of table, concentrate and tailings product index
| Name of product | Yield (%) | P2O5(%) | Yield (%) | MgO(%) | SiO2(%) | R2O3(%) |
| Concentrate | 57.06 | 35.07 | 80.72 | 0.62 | 6.67 | 1.71 |
| Tailing | 42.94 | 11.13 | 19.28 | 7.16 | 16.13 | 5.51 |
| Raw ore | 100.00 | 24.79 | 100.00 | 3.43 | 10.73 | 3.34 |
Embodiment 5:
For Sichuan silicon calcium collophanite, raw ore P2O5 17.11%、MgO 7.21%、SiO2 16.17%、R2O3 1.98%, it presses
According to the processing of following process:
1) crushing raw ore, ore grinding are accounted for 75% to -0.074mm, adds water that size mixing to mass concentration be 28%；18 DEG C of slurry temperature；
Sodium silicate modulus 3.0；
2) direct flotation one roughing: being added 2.5kg/t raw ore sodium carbonate and 3.5kg/t raw ore sodium metasilicate, and pH is controlled 10, then plus
Enter 2.5kg/t raw ore unsaturation oleic acid soaps anionic collector, the material stayed in flotation cell after air flotation, which is used as, to top-up
Rougher tailings, phosphate and carbonate mineral and part iron aluminium silicate mineral is selected to enter roughing froth pulp；
3) direct flotation is selected twice and once purging selection: adding 1.5kg/t raw ore sodium metasilicate into roughing froth pulp, carries out primary
It is selected to inflate direct flotation, is primary cleaner tailing in acquisition primary cleaning froth pulp, slot；Add into primary cleaning froth pulp
Add 1.5kg/t raw ore sodium metasilicate, progress defuelling direct flotation is selected, is secondary fine in acquisition recleaning froth pulp, slot
Select tailing；Again the cleaner tailings stayed in twice in slot is mixed to size mixing and is inflated direct flotation once purging selection, addition when scanning
1.5kg/t raw ore sodium metasilicate, then 0.15kg/t raw ore unsaturation oleic acid soaps composite anion collecting agent is added, after once purging selection
Froth pulp be direct flotation chats, return to direct flotation roughing, product is that direct flotation scans tailing in slot；
4) a reverse flotation de-magging: adding 90L/t raw ore inhibitor WFS in Xiang Jingxuan froth pulp, adjustment slurry pH is
5.5, then the industrial saturated fatty acid soaps anionic collector WF-01 of 0.20kg/t raw ore is added, reverse flotation de-magging is carried out, is stayed
Product is concentrate through reverse flotation in slot, and froth pulp is reverse flotation tailing.
Through above-mentioned one it is thick two it is single-minded it is counter sweep closed circuit flow, FLOTATION SEPARATION result shown in table 5 may finally be obtained.
5 raw ore of table, concentrate and tailings product index
| Name of product | Yield (%) | P2O5(%) | Yield (%) | MgO(%) | SiO2(%) | R2O3(%) |
| Concentrate | 41.01 | 31.96 | 76.60 | 0.62 | 13.63 | 0.97 |
| Tailing | 58.99 | 6.78 | 23.40 | 11.79 | 17.94 | 2.68 |
| Raw ore | 100.00 | 17.11 | 100.00 | 7.21 | 16.17 | 1.98 |
From case study on implementation 1-5 it is found that removing R in silicon calcium collophanite using floatation process method provided by the invention2O3And MgO
When can obtain good mineral processing index.Being also shown the present invention simultaneously selects process to the different types of silico-calcium matter glue of different zones
Phosphorus ore adaptability is good, and universality range is wide.
Claims (10)
1. the technique of sesquichloride and magnesium addition in a kind of flotation removing silicon calcium collophanite, which is characterized in that including following
Step:
1) by silicon calcium collophanite, broken, ore grinding to -0.074mm accounts for 75-82%, adds water that size mixing to mass concentration be 25-35%,
It carries out Phosphate minerals into positive and negative floatation system to separate with aluminium, iron, magnesium addition, realization proposes phosphorus removal of impurities；
2) direct flotation roughing: while sodium carbonate and sodium metasilicate are added respectively as pH regulator and phosphate inhibitors, then are added
Direct flotation collecting agent stays in the material in flotation cell after air flotation as direct flotation rougher tailings, obtains roughing froth pulp；
3) direct flotation is selected and scans: adding sodium metasilicate into roughing froth pulp, does not add direct flotation collecting agent, twice successively
It is selected to inflate direct flotation, obtains selected froth pulp, then the cleaner tailings for staying in slot bottom twice is mixed to size mixing and is inflated just
Flotation is scanned, and sodium metasilicate is first added when scanning, then adds direct flotation collecting agent, and the froth pulp after scanning is direct flotation chats,
Direct flotation roughing is returned to, staying in slot is that direct flotation scans tailing；
4) reverse flotation: adding inhibitor WFS in Xiang Jingxuan froth pulp, adjusts slurry pH, then add collecting agent WF-01, into
Row reverse flotation de-magging, staying in product in slot is concentrate through reverse flotation, and froth pulp is reverse flotation tailing.
2. the technique of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1, special
Sign is that sodium silicate modulus is in 2-3.5 used in direct flotation.
3. the technique of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1, special
Sign is, sodium carbonate additive amount is 1.5-3.0kg/t raw ore when direct flotation roughing, and sodium metasilicate additive amount is 2.5-3.5kg/t former
Mine.
4. the technique of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1, special
Sign is that the direct flotation ore pulp solution ph is in 9-11.
5. the technique of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1, special
Sign is that the direct flotation collecting agent is the mixture of unsaturated oleate soap and a variety of froth modifiers composition, belongs to compound
Anionic collector, dosage are 1.5-2.5kg/ raw ore, and slurry temperature is 10-25 DEG C.
6. the technique of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1, special
Sign is that selected sodium metasilicate additive amount is 1.0-2.0kg/t raw ore to direct flotation for the first time, and second of selected sodium metasilicate additive amount is
0.5-1.5 kg/t raw ore, does not add direct flotation collecting agent when selected.
7. the technique of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1, special
Sign is that it is 0.5-1.5kg/t raw ore that direct flotation, which scans sodium metasilicate additive amount, and direct flotation collecting agent additive amount is 0.1-0.3kg/
T raw ore.
8. the process of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1,
It is characterized in that, reverse flotation inhibitor WFS is the Phosphate Fertilizer Industry acid waste water of pH value 1-2, dosage is 80-120L/t raw ore, instead
Flotation solution system pH is controlled in 5.0-5.5.
9. the technique of sesquichloride and magnesium addition in flotation removing silicon calcium collophanite according to claim 1, special
Sign is that collecting agent in reverse floatation WF-01 is industrial saturated fatty acid soaps anionic collector, dosage 0.1-0.2kg/
T raw ore.
10. application of the technique as claimed in claims 1-9 on the impurity such as FLOTATION SEPARATION quartz, dolomite, sesquichloride.
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