CN101747091A - Method for preparing calcium magnesium phosphate fertilizer by using phosphorite floatation tailing as raw material - Google Patents
Method for preparing calcium magnesium phosphate fertilizer by using phosphorite floatation tailing as raw material Download PDFInfo
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- CN101747091A CN101747091A CN200910218354A CN200910218354A CN101747091A CN 101747091 A CN101747091 A CN 101747091A CN 200910218354 A CN200910218354 A CN 200910218354A CN 200910218354 A CN200910218354 A CN 200910218354A CN 101747091 A CN101747091 A CN 101747091A
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Abstract
The invention relates to a method for preparing calcium magnesium phosphate fertilizer through cyclone furnace process by using phosphorite floatation tailings as raw materials, in particular to a method for preparing calcium magnesium phosphate fertilizer through adopting a cyclone furnace by using phosphorite floatation tailings as main raw materials, belonging to the technical field of phosphate fertilizer chemical industry. The method uses the phosphorite floatation tailings as the main raw materials and adopts the cyclone furnace to prepare calcium magnesium phosphate fertilizer, and comprises the following steps: (1) the phosphorite floatation tailings are used as the raw materials, pulp dry basis contains 8-12 percent of P2O5 by weight percent, tailing filter cakes are obtained through treatment and the tailing filter cakes contain 20-40 percent of water; (2) the tailing filter cakes obtained through the step (1) are dried to tailing power containing water less than 2 percent by using a dryer, and the required grain size of tailing powder is that more than 80 percent of particles can pass through a 100-mesh sieve; (3) other primary phosphorite, coal, serpentine stone and silica to be jointly calcined are metered, mixed, cracked and crushed into joint-calcination mixed powder with fineness that more than 80 percent of particles can pass through the 100-mesh sieve; (4) 100 parts of phosphorite raw material, 190-280 parts of pulverized coal, 0-10 parts of silica and 0-20 parts of serpentine stone powder are added in the cyclone furnace by weight; and (5) the calcined powder raw material obtained through the step (4) is used to prepare calcium magnesium phosphate fertilizer by adopting the cyclone furnace. The invention has the advantages that the source of the raw materials is wide and the cost is low; sulfuric acid and phosphoric acid are not consumed, the product quality is reliable, the use is economic and feasible, and the social benefit is remarkable.
Description
Technical field
The invention belongs to the phosphate fertilizer chemical technology field, particularly a kind of is main raw material with the phosphate rock floating mine tailing, adopts cyclone furnace to prepare the method for fused(calcium magnesium)phosphate.
Background technology
In recent years the multiple fertile industry fast development of high dense phosphorus both at home and abroad causes the phosphorus rich ore reserves that can be directly used in phosphoric acid by wet process processing sharply to descend, and a lot of regional phosphorus abundant ore sources are closely exhausted.For guaranteeing the Sustainable development of the multiple fertile industry of high dense phosphorus, many countries are being that the phosphorus concentrate that is suitable for phosphoric acid by wet process processing employing is produced in the raw material flotation with mid low grade phosphate rock or high-magnesium-phosphorus ore all.In process, want by-product to account for the mine tailing of total amount 25-35%, and the form of starching with mine tailing is discharged into tailing dam to phosphate rock floating processing.A large amount of floating washed storing up of phosphorus mine tailing, not only will take a large amount of land resources, also brings the pollution to environment, and has huge potential safety hazard.Rhombspar class carbonate (CaMg (CO in (high magnesium) flotation phosphate mine tailing
3) content is generally more than 70%, W (P
2O
5) at 8-12%, belonging to the poor phosphorus ore product of high magnesium, the ore pulp water content is big, and it is had the resource utilization exploitation of economic worth purposes is global problem.
Summary of the invention
The objective of the invention is to utilization and the deficiencies in the prior art at the flotation phosphate mine tailing, provide that a kind of raw material sources are wide, cost is low, do not consume sulfuric acid and phosphoric acid, reliable product quality, economically feasible, obvious social benefit floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore.
Of the present invention floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, is main raw material with the phosphate rock floating mine tailing, adopts the method for cyclone furnace system fused(calcium magnesium)phosphate may further comprise the steps:
(1) be raw material with flotation phosphate mine tailing slurry, the ore pulp butt contains P
2O
5Mass percent be 8～12%, obtain tailing cake by enrichment machine and filter processed, control tailing cake moisture 20-40%;
(2) adopt drying machine to be dried to the mine tailing material powder of moisture＜2% mine tailing of piling up in step (1) tailing cake or the mine tailing storehouse, its granularity accounts for more than 80% for the 100 purpose particles that sieve;
(3) other primary phosphorus ore, coal, snake mosquito stone, the silica metering that will join burning mix broken, to be ground into fineness be that the 100 purpose particles that sieve account for and join the burning mixed powder more than 80%, wherein the quality proportioning of each ore deposit product meets into stove and fuses the quality ratio requirement of raw material to each ore deposit product; Control the quantity that wherein primary phosphorus ore adds, make that the butt mass ratio of the two is 100: 12～95 in the stove phosphorus ore raw material in going into that step (2) phosphorus mine tailing powder and its collocation obtain, and makes into stove phosphorus ore raw material butt to contain P
2O
5Mass percent be 14～20%;
(4) powdery that the adding metering mixes in cyclone furnace fuses raw material, and the metering proportion that fuses various ore deposits product in the raw material is:
Step (3) gained powdery be mixed 100 parts of phosphorus ore raw materials, 190～280 parts of coal dusts, 0～10 part of ground silica, snake stone flour 0-20 part;
(5) powdery with step (4) gained fuses raw material, adopts cyclone furnace to prepare fused(calcium magnesium)phosphate.
The described primary phosphorus ore butt of step (3) contains P
2O
5Mass percent 〉=23%.The described coal of step (3) is bituminous coal, meager coal or coke.
The described employing cyclone furnace of step (5) legal system is equipped with fused(calcium magnesium)phosphate, is undertaken by following production operation step:
1. step (5) is fused raw material and air mixed sprays in the cyclone furnace, the control furnace temperature is carried out high-temperature fusion at 1350～1450 ℃, gets melt by slag discharge port;
2. with the shrend of melt water, the solid materials after the shrend is pulled out draining, drying, pulverizes, sieved, get the fused(calcium magnesium)phosphate finished product.
That adopts step (4) preparation goes into stove phosphorus ore raw material, as its W (P
2O
5) be not less than 14%, 17% and respectively at 20% o'clock, the effective W (P of the fused(calcium magnesium)phosphate product that makes
2O
5) difference 〉=12%, 15% and 18%; This method is extremely low to the processing rate of dilution of going into stove phosphorus ore raw material, generally is lower than 12%.
It is of the present invention that floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, the useful value of its innovation is: high magnesium flotation phosphate mine tailing is rich in moderate-element magnesium and the calcium constituent (W (MgO) 9～18% that plant-growth needs, W (CaO) 29～38%) reaches abundant trace element, and contain phosphorus, Si element (W (P
2O
5) %8～12%, W (SiO
2) 8～16%), be the main material production fused(calcium magnesium)phosphate with it, contain magnesium, silicon fusing assistant and a large amount of CO are arranged owing to can add less or not add
2Burn to lose the reason of two aspects, make the effective P of main composition in the melt (fertilizer)
2O
5Be able to enrichment, W (P in the phosphorus ore that generally is mixed
2O
5) 〉=17% can make effective W (P
2O
5) fused(calcium magnesium)phosphate more than 15%, fuse that flotation phosphate mine tailing utilization ratio can reach more than 70% in the phosphorus ore raw material that is mixed, greatly reduce the production cost of fused(calcium magnesium)phosphate.The present invention provides an economically viable approach that effectively utilizes for the floating recycling of washing the phosphorus mine tailing of high magnesium, for saving phosphor resource, reducing waste sludge discharge, promotes the development of phosphate rock floating industry recycling economy to have important practical significance.Utilize the phosphate rock floating mine tailing to be main raw material, adopt cyclone furnace to prepare fused(calcium magnesium)phosphate, these production method raw material sources are wide, cost is low; Do not consume sulfuric acid and phosphoric acid, reliable product quality, economically feasible, obvious social benefit.
Description of drawings
Fig. 1 whirlwind oven process phosphate rock floating mine tailing feed stock for blast furnace preparation flow figure.
Fig. 2 whirlwind oven process of the present invention fused(calcium magnesium)phosphate technological process of production figure.
Embodiment
The present invention is described further below in conjunction with embodiment, but be not limited to embodiment.
Embodiment 1
The present invention is a main raw material with the phosphate rock floating mine tailing, and the Production Flow Chart main points that adopt cyclone furnace to prepare fused(calcium magnesium)phosphate are described below:
(1) preparation of phosphate rock floating mine tailing raw material
With flotation phosphate mine tailing slurry is raw material, by enrichment machine, filter dehydration, obtains moisture 20～40% flotation tailings filter cake; With the wet mine tailing material drying and dehydrating of storing up in this filter cake or the mine tailing storehouse that contains, obtain the phosphorus mine tailing powder of moisture＜2%, mine tailing butt W (P
2O
5) be 8～12%, this powder self fineness accounts for more than 80% for the 100 purpose particles that sieve.The technological process of production is seen Fig. 1.
(2) going into stove fuses the preparation of raw material and is mixed
Other primary phosphorus ore W (P that will join burning
2O
5〉=23%), to mix, be ground into fineness be that the 100 purpose particles that sieve account for and join the burning mixed powder more than 90% for coal, snake mosquito stone, silica fragmentation, metering, wherein the quality proportioning of each ore deposit product meets into stove and fuses the quality ratio requirement of raw material to each ore deposit product, controls wherein primary phosphorus ore W (P
2O
5〉=23%) quantity of Jia Ruing makes that the butt mass ratio of the two is that 100: 12～95-makes the butt W (P into stove phosphorus ore raw material in the stove phosphorus ore raw material in going into that step (1) phosphorus mine tailing powder and its collocation obtain
2O
5) be 14～20%.
To join the burning mixed powder and mix, and obtain fusing raw material into stove with the metering of phosphorus mine tailing.Going into the metering proportion that stove fuses various ore deposits product in the raw material is:
What collocation obtained goes into 100 parts of stove phosphorus ore raw materials, 190～280 parts of coal dusts, 0～10 part of ground silica, snake stone flour 0-25 part.
(3) raw material goes into that stove fuses and the preparation of finished product
Go into stove powder raw material and the air mixed that are mixed are sprayed in the cyclone furnace and fuse; Control cyclone furnace fusing sintering temperature is at 1350 ℃; The control material high-temperature melting time was at 35 minutes; Carry out shrend in the rapid impouring water of melt with the discharge of cyclone furnace slag mouth, control hardening temperature is 25 ℃, melt is come out of the stove be cooled to rapidly after shrend＜700 ℃; The fixed melt of loose shape after the shrend by picking up in the pond, is delivered to stockyard filter draining branch; The solid slag of moisture＜25% is dried to moisture＜0.5% with whizzer, then to this material pulverize, sub-sieve, fineness requirement accounts for more than 80% of total amount by 250 μ m standard sieve particulate fractions; With the packing of product warehouse-in that is up to the standards.The transformation efficiency that can guarantee phosphorus ore by this technology is more than 95%.
With the phosphate rock floating mine tailing is that accompanying drawing 2 is seen in the technical process that main raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate.
The used flotation phosphate mine tailing of this example and go into stove phosphorus ore raw material typical case chemical ingredients (quality %)
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Flotation tailings | ??8.00 | ??13.20 | ??31.80 | ??7.82 |
| Go into stove phosphorus ore raw material | ??14.00 | ??11.20 | ??30.65 | ??13.80 |
The prepared fused(calcium magnesium)phosphate technical performance index of this example (chemical ingredients W%)
| Chemical ingredients | Effective P 2O 5％ | Effective MgO% | ??CaO％ | Solvable SiO 2％ | Moisture %/ | Fineness: by 0.25mm standard sieve %/ |
| Fused(calcium magnesium)phosphate | ??12.40 | ??9.60 | ??31.72 | ??32.02 | ??≤0.5 | ??≥80 |
Embodiment 2
(1) flotation phosphate mine tailing and go into stove phosphorus ore raw material chemical constitution
The used flotation phosphate mine tailing of this example and go into stove phosphorus ore raw material typical case chemical ingredients (quality %)
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Flotation tailings | ??9.20 | ??12.10 | ??30.60 | ??6.10 |
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Go into stove phosphorus ore raw material | ??15.50 | ??10.96 | ??32.65 | ??14.30 |
(2) adopt cyclone furnace to prepare the Production Flow Chart and the operation steps of fused(calcium magnesium)phosphate
Production Flow Chart and operation controlled step are identical with embodiment 1, process flow sheet such as Fig. 1, Fig. 2.
(3) the typical process condition of this example
The typical process condition of this example
| Fusing sintering temperature (℃) | ??1380 |
| Fuse the time (min) | ??40 |
| The hardening temperature (℃) | ??32 |
(4) the prepared fused(calcium magnesium)phosphate performance index of this example
The prepared fused(calcium magnesium)phosphate technical performance index of this example (chemical ingredients W%)
| Chemical ingredients | Effective P 2O 5％ | Effective MgO% | ??CaO％ | Solvable SiO 2％ | Moisture %/ | Fineness: by 0.25mm standard sieve %/ |
| Fused(calcium magnesium)phosphate | ??14.20 | ??11.10 | ??32.18 | ??30.30 | ??≤0.5 | ??≥80 |
Embodiment 3
(1) flotation phosphate mine tailing and go into stove phosphorus ore raw material chemical constitution
The used flotation phosphate mine tailing of this example and go into stove phosphorus ore raw material typical case chemical ingredients (quality %)
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Flotation tailings | ??10.08 | ??11.65 | ??31.68 | ??9.62 |
| Go into stove phosphorus ore raw material | ??15.85 | ??10.26 | ??32.94 | ??13.96 |
(2) adopt cyclone furnace to prepare the Production Flow Chart and the operation steps of fused(calcium magnesium)phosphate
Production Flow Chart and operation controlled step are identical with embodiment 1, process flow sheet such as Fig. 1, Fig. 2.
(3) the typical process condition of this example
The typical process condition of this example
| Fusing sintering temperature (℃) | ??1400 |
| Fuse the time (min) | ??45 |
| The hardening temperature (℃) | ??40 |
(4) the prepared fused(calcium magnesium)phosphate performance index of this example
The prepared fused(calcium magnesium)phosphate technical performance index of this example (chemical ingredients W%)
| Chemical ingredients | Effective P 2O 5％ | Effective MgO% | ??CaO％ | Solvable SiO 2％ | Moisture %/ | Fineness: by 0.25mm standard sieve %/ |
| Fused(calcium magnesium)phosphate | ??14.51 | ??10.39 | ??33.45 | ??30.94 | ??≤0.5 | ??≥80 |
Embodiment 4
(1) flotation phosphate mine tailing and go into stove phosphorus ore raw material chemical constitution
The used flotation phosphate mine tailing of this example and go into stove phosphorus ore raw material typical case chemical ingredients (quality %)
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Flotation tailings | ??10.52 | ??11.34 | ??31.87 | ??10.84 |
| Go into stove phosphorus ore raw material | ??16.64 | ??10.03 | ??33.42 | ??14.63 |
(2) adopt cyclone furnace to prepare the Production Flow Chart and the operation steps of fused(calcium magnesium)phosphate
Production Flow Chart and operation controlled step are identical with embodiment 1, process flow sheet such as Fig. 1, Fig. 2.
(3) the typical process condition of this example
The typical process condition of this example
| Fusing sintering temperature (℃) | ??1415 |
| Fuse the time (min) | ??44 |
| The hardening temperature (℃) | ??42 |
(4) the prepared fused(calcium magnesium)phosphate performance index of this example
The prepared fused(calcium magnesium)phosphate technical performance index of this example (chemical ingredients W%)
| Chemical ingredients | Effective P 2O 5％ | Effective MgO% | ??CaO％ | Solvable SiO 2％ | Moisture %/ | Fineness: by 0.25mm standard sieve %/ |
| Fused(calcium magnesium)phosphate | ??15.47 | ??10.31 | ??34.46 | ??30.19 | ??≤0.5 | ??≥80 |
Embodiment 5
(1) flotation phosphate mine tailing and go into stove phosphorus ore raw material chemical constitution
The used flotation phosphate mine tailing of this example and go into stove phosphorus ore raw material typical case chemical ingredients (quality %)
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Flotation tailings | ??11.20 | ??10.40 | ??31.84 | ??10.15 |
| Go into stove phosphorus ore raw material | ??17.56 | ??9.85 | ??33.86 | ??12.86 |
(2) adopt cyclone furnace to prepare the Production Flow Chart and the operation steps of fused(calcium magnesium)phosphate
Production Flow Chart and operation controlled step are identical with embodiment 1, process flow sheet such as Fig. 1, Fig. 2.
(3) the typical process condition of this example
The typical process condition of this example
| Fusing sintering temperature (℃) | ??1430 |
| Fuse the time (min) | ??50 |
| The hardening temperature (℃) | ??45 |
(4) the prepared fused(calcium magnesium)phosphate performance index of this example
The prepared fused(calcium magnesium)phosphate technical performance index of this example (chemical ingredients W%)
| Chemical ingredients | Effective P 2O 5％ | Effective MgO% | ??CaO％ | Solvable SiO 2％ | Moisture %/ | Fineness: by 0.25mm standard sieve %/ |
| Fused(calcium magnesium)phosphate | ??16.05 | ??9.95 | ??34.30 | ??28.83 | ??≤0.5 | ??≥80 |
Embodiment 6
(1) flotation phosphate mine tailing and go into stove phosphorus ore raw material chemical constitution
The used flotation phosphate mine tailing of this example and go into stove phosphorus ore raw material typical case chemical ingredients (quality %)
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Flotation tailings | ??11.68 | ??10.85 | ??33.63 | ??8.15 |
| Go into stove phosphorus ore raw material | ??18.42 | ??10.34 | ??33.94 | ??13.64 |
(2) adopt cyclone furnace to prepare the Production Flow Chart and the operation steps of fused(calcium magnesium)phosphate
Production Flow Chart and operation controlled step are identical with embodiment 1, process flow sheet such as Fig. 1, Fig. 2.
(3) the typical process condition of this example
The typical process condition of this example
| Fusing sintering temperature (℃) | ??1450 |
| Fuse the time (min) | ??48 |
| The hardening temperature (℃) | ??42 |
(4) the prepared fused(calcium magnesium)phosphate performance index of this example
The prepared fused(calcium magnesium)phosphate technical performance index of this example (chemical ingredients W%)
| Chemical ingredients | Effective P 2O 5％ | Effective MgO% | ??CaO％ | Solvable SiO 2％ | Moisture %/ | Fineness: by 0.25mm standard sieve %/ |
| Fused(calcium magnesium)phosphate | ??16.98 | ??11.55 | ??34.68 | ??29.87 | ??≤0.5 | ??≥80 |
Embodiment 7
(1) flotation phosphate mine tailing and go into stove phosphorus ore raw material chemical constitution
The used flotation phosphate mine tailing of this example and go into stove phosphorus ore raw material typical case chemical ingredients (quality %)
| Chemical ingredients | ??P 2O 5 | ??MgO | ??CaO | ??SiO 2 |
| Flotation tailings | ??12.00 | ??9.10 | ??32.84 | ??6.18 |
| Go into stove phosphorus ore raw material | ??20.00 | ??11.56 | ??34.49 | ??12.38 |
(2) adopt cyclone furnace to prepare the Production Flow Chart and the operation steps of fused(calcium magnesium)phosphate
Production Flow Chart and operation controlled step are identical with embodiment 1, process flow sheet such as Fig. 1, Fig. 2.
(3) the typical process condition of this example
The typical process condition of this example
| Fusing sintering temperature (℃) | ??1430 |
| Fuse the time (min) | ??50 |
| The hardening temperature (℃) | ??40 |
(4) the prepared fused(calcium magnesium)phosphate performance index of this example
The prepared fused(calcium magnesium)phosphate technical performance index of this example (chemical ingredients W%)
| Chemical ingredients | Effective P 2O 5％ | Effective MgO% | ??CaO％ | Solvable SiO 2％ | Moisture %/ | Fineness: by 0.25mm standard sieve %/ |
| Fused(calcium magnesium)phosphate | ??18.10 | ??11.68 | ??34.61 | ??29.02 | ??≤0.5 | ??≥80 |
Claims (7)
- One kind with phosphorus ore floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate, be main raw material with the phosphate rock floating mine tailing, adopt the method for cyclone furnace system fused(calcium magnesium)phosphate, it is characterized in that, may further comprise the steps:(1) be raw material with flotation phosphate mine tailing slurry, the ore pulp butt contains P 2O 5Mass percent be 8～12%, obtain tailing cake by enrichment machine and filter processed, control tailing cake moisture 20-40%;(2) adopt drying machine to be dried to the mine tailing material powder of moisture＜2% mine tailing of piling up in step (1) tailing cake or the mine tailing storehouse, its granularity accounts for more than 80% for the 100 purpose particles that sieve;(3) other primary phosphorus ore, coal, snake mosquito stone, the silica metering that will join burning mix broken, to be ground into fineness be that the 100 purpose particles that sieve account for and join the burning mixed powder more than 80%; Control the quantity that wherein primary phosphorus ore adds, make that the butt mass ratio of the two is 100: 12～95 in the stove phosphorus ore raw material in going into that step (2) phosphorus mine tailing powder and its collocation obtain, and goes into stove phosphorus ore raw material butt and contains P 2O 5Mass percent be 14～20%;(4) powdery that the adding metering mixes in cyclone furnace fuses raw material, and the metering proportion that fuses various ore deposits product in the raw material is:Step (3) gained powdery is gone into 100 parts of stove phosphorus ore raw materials, 190～280 parts of coal dusts, 0～10 part of ground silica, snake stone flour 0-20 part;(5) powdery with step (4) gained fuses raw material, adopts cyclone furnace to prepare fused(calcium magnesium)phosphate.
- It is 2. according to claim 1 that floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, it is characterized in that, and in the described primary phosphorus ore of step (3), P 2O 5Mass percent 〉=23%.
- 3. according to claim 1 floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, it is characterized in that the described coal of step (3) is bituminous coal, meager coal or coke.
- 4. according to claim 1 floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, it is characterized in that the described employing cyclone furnace of step (5) legal system is equipped with fused(calcium magnesium)phosphate, is undertaken by following production operation step:1. step (5) is fused raw material and air mixed sprays in the cyclone furnace, the control furnace temperature is carried out high-temperature fusion at 1350～1450 ℃, gets melt by slag discharge port;2. with the shrend of melt water, the solid materials after the shrend is pulled out draining, drying, pulverizes, sieved, get the fused(calcium magnesium)phosphate finished product.
- 5. according to claim 1 floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, it is characterized in that, that adopts step (4) preparation goes into stove phosphorus ore raw material, and its butt contains P 2O 5Mass percent 〉=14%, effective P in the fused(calcium magnesium)phosphate product that makes 2O 5Content 〉=12%.
- 6. according to claim 1 floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, it is characterized in that, that adopts step (4) preparation goes into stove phosphorus ore raw material, and its butt contains P 2O 5Mass percent 〉=17%, effective P in the fused(calcium magnesium)phosphate product that makes 2O 5Content 〉=15%.
- 7. according to claim 1 floating to wash mine tailing be the method that raw material cyclone furnace legal system is equipped with fused(calcium magnesium)phosphate with phosphorus ore, it is characterized in that, that adopts step (4) preparation goes into stove phosphorus ore raw material, and its butt contains P 2O 5Mass percent 〉=20%, effective P in the fused(calcium magnesium)phosphate product that makes 2O 5Content 〉=18%.。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103641516A (en) * | 2013-12-04 | 2014-03-19 | 宣威市恒邦磷化工业有限公司 | Method for realizing smelting of fertilizer and iron in same furnace through calcium-magnesium blast furnace |
| AU2014208288B2 (en) * | 2013-08-05 | 2017-05-11 | HALL, Robert Hamilton MR | Improvements in and relating to rock treatment process |
| CN113387744A (en) * | 2021-05-26 | 2021-09-14 | 龙蟒大地农业有限公司 | Granular medium element fertilizer based on phosphorite flotation tailings and preparation method thereof |
| CN113636883A (en) * | 2021-08-13 | 2021-11-12 | 云南善施化工有限公司 | Method for producing calcium magnesium phosphate fertilizer from phosphate ore flotation tailings |
| CN113735631A (en) * | 2021-09-23 | 2021-12-03 | 湖北富邦科技股份有限公司 | Production method of low-energy-consumption potassium-calcium-magnesium-phosphate fertilizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1119998A1 (en) * | 1983-01-28 | 1984-10-23 | Dolgorev Anatolij V | Method of obtaining complex fertilizer from poor phosphorites |
| CN101439991B (en) * | 2008-12-15 | 2011-05-18 | 张学敏 | Preparation technique for directly producing citric soluble phosphorus fertilizer from Shiti phosphate ore |
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2009
- 2009-12-14 CN CN 200910218354 patent/CN101747091B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014208288B2 (en) * | 2013-08-05 | 2017-05-11 | HALL, Robert Hamilton MR | Improvements in and relating to rock treatment process |
| CN103641516A (en) * | 2013-12-04 | 2014-03-19 | 宣威市恒邦磷化工业有限公司 | Method for realizing smelting of fertilizer and iron in same furnace through calcium-magnesium blast furnace |
| CN103641516B (en) * | 2013-12-04 | 2016-01-20 | 宣威市恒邦磷化工业有限公司 | Calcium magnesium blast furnace realizes fertilizer, iron with stove smelting process |
| CN113387744A (en) * | 2021-05-26 | 2021-09-14 | 龙蟒大地农业有限公司 | Granular medium element fertilizer based on phosphorite flotation tailings and preparation method thereof |
| CN113636883A (en) * | 2021-08-13 | 2021-11-12 | 云南善施化工有限公司 | Method for producing calcium magnesium phosphate fertilizer from phosphate ore flotation tailings |
| CN113735631A (en) * | 2021-09-23 | 2021-12-03 | 湖北富邦科技股份有限公司 | Production method of low-energy-consumption potassium-calcium-magnesium-phosphate fertilizer |
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| CN101747091B (en) | 2013-02-06 |
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