CN106365695A - Production method of calcium superphosphate and calcium superphosphate prepared by same - Google Patents
Production method of calcium superphosphate and calcium superphosphate prepared by same Download PDFInfo
- Publication number
- CN106365695A CN106365695A CN201610738416.2A CN201610738416A CN106365695A CN 106365695 A CN106365695 A CN 106365695A CN 201610738416 A CN201610738416 A CN 201610738416A CN 106365695 A CN106365695 A CN 106365695A
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- Prior art keywords
- calcium superphosphate
- production method
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- sulfur
- phosphate
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/04—Double-superphosphate; Triple-superphosphate; Other fertilisers based essentially on monocalcium phosphate
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Plant Pathology (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a production method of calcium superphosphate and calcium superphosphate prepared by the same. The production method comprises the following steps: screening: selecting phosphate ores of which the content of the mass percentage of phosphorus pentoxide is 32.5 percent or above from phosphorite; crushing: crushing the phosphate ores to obtain phosphorite powder, wherein the phosphorite powder screened by a 200-mesh sieve occupies above 80 percent of the mass of total phosphorite powder; mixing and stirring: adding phosphoric acid into the phosphorite powder, and mixing and stirring for chemical reaction to obtain mixed slurry; solidifying: putting the mixed slurry into a rotary den for solidifying for 10-20 minutes. Compared with existing calcium superphosphate, the calcium superphosphate prepared by the production method disclosed by the invention has the benefits that sodium lignosulfonate is increased and can be taken as a phosphorus dispersant and effectively separate phosphorus elements, so that the utilization rate of calcium superphosphate fertilizers is improved; meanwhile, the proportion of sulfur is increased in the calcium superphosphate disclosed by the invention, so that the effects of improving soil, killing insects and the like can be achieved, that is, the effect of improving the soil is achieved while fertilization is performed.
Description
Technical field
The present invention relates to field of fertilizer production is and in particular to a kind of production method of calcium superphosphate and its prepared peroxophosphoric acid
Calcium.
Background technology
The main component of double superhosphate is dalcium biphosphate, its effective phosphorus pentoxide >=40%, is in single-action phosphate fertilizer
Phosphorus content highest phosphate fertilizer, outward appearance is also similar with normal superphosphate, and different according to the phosphorus ore place of production is in generally canescence, mixed Lycoperdon polymorphum Vitt
Or grey black, the fertilizer without pelletize is granular, is entrained with irregular little particle.Fertilizer after pelletize is usually straight
Footpath is in 2～4.75 millimeters of circular granular.The double superhosphate of existing production easily occurs in can not be effectively scattered in soil
Phenomenon, causes effective phosphorus utilization of double superhosphate low, and existing double superhosphate is only all the effect playing phosphate fertilizer simultaneously
And soil can not be improved, there is no the effect of parasite killing yet.Often apply calcium superphosphate in soil, a lack of sulfur in soil can be led to,
If lack of soil sulfur, the blade on plant top can turn to be yellow, and is also easy to speckle when serious.
Content of the invention
It is an object of the invention to provide a kind of production method of calcium superphosphate and its prepared calcium superphosphate, solve at present
The calcium superphosphate available phosphoruss components utilising rate producing is low, the problem of the easy a lack of sulfur of soil.
For solving above-mentioned technical problem, the present invention employs the following technical solutions:
A kind of production method of calcium superphosphate, comprises the following steps:
Screening: select rock phosphate in powder more than 32.5% for the phosphorus pentoxide mass percentage content from phosphorus ore；
Pulverize: rock phosphate in powder is pulverized and obtains ground phosphate rock, by the ground phosphate rock of 200 mesh sieves account for the 80% of total phosphorus powdered ore quality with
On；Acid decomposed by phosphoric acid phosphorus ore, its reagin is fixed and phosphorus ore granular size has much relations, and granule is thinner, and response speed is faster, reaction
It is also carried out more complete, the production cycle can be shortened, improve efficiency.
Mix and blend: add phosphoric acid mix and blend to carry out chemical reaction in ground phosphate rock and obtain mixed slurry；
Solidification: mixed slurry is put into revolution formation chamber and carries out solidifying 10～20 minutes.
Preferably, being simultaneously introduced sodium lignin sulfonate and sulfur, the temperature of described mix and blend in mix and blend step
Spend for 30～50 degrees Celsius.
Preferably, in mix and blend step, phosphoric acid is 1.05:1 with the mass ratio of ground phosphate rock, described addition lignin
The quality of sodium sulfonate is 3 ‰～the 5 ‰ of phosphoric acid and ground phosphate rock quality summation, and the described quality adding sulfur is phosphoric acid and breeze matter
The 5%～20% of amount summation.
Preferably, the concentration of phosphoric acid is 47%～50%, described [h+] concentration be 0.64%～0.69%.
Preferably, phosphoric acid is made up with rock phosphate in powder and sulphuric acid of raw material, its preparation method is to pulverize rock phosphate in powder to be
Then sulphuric acid and ground phosphate rock mix and blend are obtained ore pulp by 80% ground phosphate rock passing through 100 mesh sieves, eventually pass filtering and concentrating step
Suddenly obtain phosphoric acid.
Preferably, sulphuric acid is with troilite as raw material, first burns in fluidized bed furnace through troilite and generate sulfur dioxide, so
It is translated into sulfur trioxide, sulfur trioxide absorption moisture again after the sulfur dioxide cooling udst separation operation afterwards burning being generated
Obtain sulphuric acid.
Preferably, also needing to carry out ripening operation after mixed slurry is put into revolution formation chamber, described ripening operation
It is that the mixed material of solidification is stacked more than 15 days under conditions of 5～10 degrees Celsius.Relatively low curing temperature, not only can make to satisfy
The dissolubility of sum reduces, and crystallization content increases it is ensured that producing dalcium biphosphate more, generates less or does not generate calcium hydrogen phosphate, Er Qieneng
Enough improve hydrogen ion activity, thus the continuation promoting phosphorus ore is decomposed.
Preferably, put into after ripening operation carrying out granulation operations in comminutor, the granule obtaining after granulation operations
Size accounts for more than the 90% of total pelletize quality of material at 2～4.75 millimeters.
Preferably, the calcium superphosphate granule obtaining after granulation operations is put in air stove and is dried, drying temperature
Below 120 degrees Celsius, dry to moisture below 4%, then carry out screening again and be packaged as finished product.Drying temperature can not
Too high, it is to avoid to be heated too high and so that fertilizer efficiency is reduced.
A kind of calcium superphosphate obtained by production method by above-mentioned calcium superphosphate, including the group of following weight portion
Point: 0.3～0.5 part of sodium lignin sulfonate, 5～20 parts of sulfur, 80～90 parts of dalcium biphosphate, 10～20 parts of calcium monohydrogenphosphate,
1～3 part of magnesium phosphate, 1～3 part of iron phosphate, 1～3 part of aluminum phosphate, 1～4 part of calcium sulfate, 4～7 parts of silicon dioxide.
Compared with prior art, the invention has the beneficial effects as follows: by the method for the present invention be obtained calcium superphosphate compare
More existing calcium superphosphate increased sodium lignin sulfonate, and sodium lignin sulfonate can be used as phosphorus dispersant, can be effectively by effectively
P elements separate, improve superphosphate fertilizer utilization rate, increase the ratio of sulfur in the present invention simultaneously, can
Reach improved soil and parasite killing and other effects, while fertilising, reach the effect of improvement soil property, sulfur can also carry for plant
For nutrient, it is to avoid plant causes yellow leaf because of chronic administration calcium superphosphate.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Embodiment 1:
A kind of production method of calcium superphosphate, comprises the following steps:
Screening: select rock phosphate in powder more than 32.5% for the phosphorus pentoxide mass percentage content from phosphorus ore；
Pulverize: rock phosphate in powder is pulverized and obtains ground phosphate rock, by the ground phosphate rock of 200 mesh sieves account for the 80% of total phosphorus powdered ore quality with
On；
Mix and blend: add phosphoric acid, sodium lignin sulfonate and sulfur mix and blend to carry out chemical reaction and obtain in ground phosphate rock
To mixed slurry, temperature is controlled to be 30 degrees Celsius in mix and blend, phosphoric acid is 1.05:1 with the mass ratio of ground phosphate rock, adds
The quality of sodium lignin sulfonate is the 3 ‰ of phosphoric acid and ground phosphate rock quality summation, and the quality adding sulfur is phosphoric acid and powdered ore quality
The 5% of summation；The concentration of phosphoric acid is 47%, described [h+] concentration be 0.69%；Phosphoric acid is with rock phosphate in powder and sulphuric acid as raw material
Make, its preparation method is that rock phosphate in powder is pulverized the ground phosphate rock by 100 mesh sieves for 80%, then mixes sulphuric acid and ground phosphate rock
Close stirring and obtain ore pulp, eventually pass filtration concentrating step and obtain phosphoric acid；Sulphuric acid is with troilite as raw material, first exists through troilite
In fluidized bed furnace, burning generates sulfur dioxide, is converted after the sulfur dioxide cooling udst separation operation then generating burning again
For sulfur trioxide, sulfur trioxide absorption moisture obtains sulphuric acid.
Solidification: mixed slurry is put into revolution formation chamber and carries out solidifying 20 minutes.
Ripening: the mixed material of solidification is stacked more than 15 days under conditions of 5 degrees Celsius
Pelletize: the material after ripening is put into and carries out pelletize in comminutor, the granular size obtaining after granulation operations is 2
～4.75 millimeters of account for total pelletize quality of material more than 90%.
Dry: the calcium superphosphate granule obtaining after granulation operations is put in air stove and dried, drying temperature is 120
Below degree Celsius, dry to moisture below 4%, then carry out screening again and be packaged as finished product.
A kind of calcium superphosphate obtained by production method by above-mentioned calcium superphosphate, including the group of following weight portion
Point: 0.3 part of sodium lignin sulfonate, 5 parts of sulfur, 80 parts of dalcium biphosphate, 10 parts of calcium monohydrogenphosphate, 1 part of magnesium phosphate, iron phosphate 1
Part, 1 part of aluminum phosphate, 1 part of calcium sulfate, 4 parts of silicon dioxide.
In the present embodiment, the mass percent content of available phosphoruss is 44.5%, and the mass percent content of water-soluble phosphorus is
38%, the mass percent content of free acid is 5.2%, has exceeded national standard.
Embodiment 2:
A kind of production method of calcium superphosphate, comprises the following steps:
Screening: select rock phosphate in powder more than 32.5% for the phosphorus pentoxide mass percentage content from phosphorus ore；
Pulverize: rock phosphate in powder is pulverized and obtains ground phosphate rock, by the ground phosphate rock of 200 mesh sieves account for the 80% of total phosphorus powdered ore quality with
On；
Mix and blend: add phosphoric acid, sodium lignin sulfonate and sulfur mix and blend to carry out chemical reaction and obtain in ground phosphate rock
To mixed slurry, temperature is controlled to be 30 degrees Celsius in mix and blend, phosphoric acid is 1.05:1 with the mass ratio of ground phosphate rock, adds
The quality of sodium lignin sulfonate is the 5 ‰ of phosphoric acid and ground phosphate rock quality summation, and the quality adding sulfur is phosphoric acid and powdered ore quality
The 20% of summation；The concentration of phosphoric acid is 50%, described [h+] concentration be 0.64%；Phosphoric acid is with rock phosphate in powder and sulphuric acid as raw material
Make, its preparation method is that rock phosphate in powder is pulverized the ground phosphate rock by 100 mesh sieves for 80%, then mixes sulphuric acid and ground phosphate rock
Close stirring and obtain ore pulp, eventually pass filtration concentrating step and obtain phosphoric acid；Sulphuric acid is with troilite as raw material, first exists through troilite
In fluidized bed furnace, burning generates sulfur dioxide, is converted after the sulfur dioxide cooling udst separation operation then generating burning again
For sulfur trioxide, sulfur trioxide absorption moisture obtains sulphuric acid.
Solidification: mixed slurry is put into revolution formation chamber and carries out solidifying 10 minutes.
Ripening: the mixed material of solidification is stacked more than 15 days under conditions of 10 degrees Celsius
Pelletize: the material after ripening is put into and carries out pelletize in comminutor, the granular size obtaining after granulation operations is 2
～4.75 millimeters of account for total pelletize quality of material more than 90%.
Dry: the calcium superphosphate granule obtaining after granulation operations is put in air stove and dried, drying temperature is 120
Below degree Celsius, dry to moisture below 4%, then carry out screening again and be packaged as finished product.
A kind of calcium superphosphate obtained by production method by above-mentioned calcium superphosphate, including the group of following weight portion
Point: 0.5 part of sodium lignin sulfonate, 20 parts of sulfur, 90 parts of dalcium biphosphate, 20 parts of calcium monohydrogenphosphate, 3 parts of magnesium phosphate, iron phosphate 3
Part, 3 parts of aluminum phosphate, 4 parts of calcium sulfate, 7 parts of silicon dioxide.
In the present embodiment, the mass percent content of available phosphoruss is 45.1%, and the mass percent content of water-soluble phosphorus is
38.3%, the mass percent content of free acid is 5.4%, has exceeded national standard.
Embodiment 3:
A kind of production method of calcium superphosphate, comprises the following steps:
Screening: select rock phosphate in powder more than 32.5% for the phosphorus pentoxide mass percentage content from phosphorus ore；
Pulverize: rock phosphate in powder is pulverized and obtains ground phosphate rock, by the ground phosphate rock of 200 mesh sieves account for the 80% of total phosphorus powdered ore quality with
On；
Mix and blend: add phosphoric acid, sodium lignin sulfonate and sulfur mix and blend to carry out chemical reaction and obtain in ground phosphate rock
To mixed slurry, temperature is controlled to be 40 degrees Celsius in mix and blend, phosphoric acid is 1.05:1 with the mass ratio of ground phosphate rock, adds
The quality of sodium lignin sulfonate is the 4 ‰ of phosphoric acid and ground phosphate rock quality summation, and the quality adding sulfur is phosphoric acid and powdered ore quality
The 15% of summation；The concentration of phosphoric acid is 48%, described [h+] concentration be 0.67%；Phosphoric acid is with rock phosphate in powder and sulphuric acid as raw material
Make, its preparation method is that rock phosphate in powder is pulverized the ground phosphate rock by 100 mesh sieves for 80%, then mixes sulphuric acid and ground phosphate rock
Close stirring and obtain ore pulp, eventually pass filtration concentrating step and obtain phosphoric acid；Sulphuric acid is with troilite as raw material, first exists through troilite
In fluidized bed furnace, burning generates sulfur dioxide, is converted after the sulfur dioxide cooling udst separation operation then generating burning again
For sulfur trioxide, sulfur trioxide absorption moisture obtains sulphuric acid.
Solidification: mixed slurry is put into revolution formation chamber and carries out solidifying 15 minutes.
Ripening: the mixed material of solidification is stacked more than 15 days under conditions of 6 degrees Celsius
Pelletize: the material after ripening is put into and carries out pelletize in comminutor, the granular size obtaining after granulation operations is 2
～4.75 millimeters of account for total pelletize quality of material more than 90%.
Dry: the calcium superphosphate granule obtaining after granulation operations is put in air stove and dried, drying temperature is 120
Below degree Celsius, dry to moisture below 4%, then carry out screening again and be packaged as finished product.
A kind of calcium superphosphate obtained by production method by above-mentioned calcium superphosphate, including the group of following weight portion
Point: 0.4 part of sodium lignin sulfonate, 10 parts of sulfur, 85 parts of dalcium biphosphate, 15 parts of calcium monohydrogenphosphate, 2 parts of magnesium phosphate, iron phosphate 2
Part, 2 parts of aluminum phosphate, 2 parts of calcium sulfate, 5 parts of silicon dioxide.
In the present embodiment, the mass percent content of available phosphoruss is 44.7%, and the mass percent content of water-soluble phosphorus is
38.5%, the mass percent content of free acid is 5.6%, has exceeded national standard.
Table 1 be apply calcium superphosphate in existing calcium superphosphate and the present invention fertilising consumption, insect occurrence rate and
The contrast of soil sulfur content.Effective phosphorus utilization in calcium superphosphate in the present invention substantially increases, often as can be seen from Table 1
Mu fertilising consumption substantially reduces, and the calcium superphosphate in the present invention also has the effect of parasite killing, can reduce the appearance of insect
Rate.
Table 1
| Fertilising consumption (kg/ mu) | Insect occurrence rate (%) | |
| Apply existing calcium superphosphate | 30 | 60 |
| Apply embodiment 1 | 21 | 30 |
| Apply embodiment 2 | 23 | 20 |
| Apply embodiment 3 | 24 | 28 |
Although reference be made herein to invention has been described for multiple explanatory embodiments of the present invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.More specifically, in the range of disclosure and claim, can be to master
The building block of topic composite configuration and/or layout carry out multiple modifications and improvement.Except carry out to building block and/or layout
Deformation and improvement are outer, and to those skilled in the art, other purposes also will be apparent from.
Claims (10)
1. a kind of production method of calcium superphosphate it is characterised in that: comprise the following steps:
Screening: select rock phosphate in powder more than 32.5% for the phosphorus pentoxide mass percentage content from phosphorus ore；
Pulverize: rock phosphate in powder is pulverized and obtains ground phosphate rock, account for more than the 80% of total phosphorus powdered ore quality by the ground phosphate rock of 200 mesh sieves；
Mix and blend: add phosphoric acid mix and blend to carry out chemical reaction in ground phosphate rock and obtain mixed slurry；
Solidification: mixed slurry is put into revolution formation chamber and carries out solidifying 10～20 minutes.
2. calcium superphosphate according to claim 1 production method it is characterised in that: in the described step in mix and blend with
When add sodium lignin sulfonate and sulfur, the temperature of described mix and blend is 30～50 degrees Celsius.
3. calcium superphosphate according to claim 2 production method it is characterised in that: in described mix and blend step, phosphorus
Acid is 1.05:1 with the mass ratio of ground phosphate rock, and the quality of described addition sodium lignin sulfonate is phosphoric acid and ground phosphate rock quality summation
3 ‰～5 ‰, described add sulfur quality be the 5%～20% of phosphoric acid and powdered ore quality summation.
4. calcium superphosphate according to claim 3 production method it is characterised in that: the concentration of described phosphoric acid be 47%～
50%, described [h+] concentration be 0.64%～0.69%.
5. the calcium superphosphate according to claim 3 or 4 production method it is characterised in that: described phosphoric acid is with rock phosphate in powder
Make for raw material with sulphuric acid, its preparation method is to pulverize as 80% ground phosphate rock passing through 100 mesh sieves by rock phosphate in powder, then by sulfur
Acid and ground phosphate rock mix and blend obtain ore pulp, eventually pass filtration concentrating step and obtain phosphoric acid.
6. calcium superphosphate according to claim 5 production method it is characterised in that: described sulphuric acid is to be former with troilite
Material, first burns in fluidized bed furnace through troilite and generates sulfur dioxide, the sulfur dioxide cooling udst separation then generating burning
It is translated into sulfur trioxide again, sulfur trioxide absorption moisture obtains sulphuric acid after operation.
7. calcium superphosphate according to claim 6 production method it is characterised in that: described mixed slurry is put into revolution
Also need to carry out ripening operation after formation chamber, described ripening operation is in 5～10 degrees Celsius of bar by the mixed material of solidification
Stack more than 15 days under part.
8. calcium superphosphate according to claim 7 production method it is characterised in that: put into after described ripening operation and make
Carry out granulation operations, the granular size obtaining after granulation operations accounts for total pelletize quality of material at 2～4.75 millimeters in grain machine
More than 90%.
9. calcium superphosphate according to claim 8 production method it is characterised in that: obtain after described granulation operations
Calcium superphosphate granule is put in air stove and is dried, and drying temperature, below 120 degrees Celsius, is dried to moisture 4%
Hereinafter, then carry out screening again and be packaged as finished product.
10. the calcium superphosphate obtained by the production method of the calcium superphosphate according to claim 1～9 any one, it is special
Levy and be: include the component of following weight portion: 0.3～0.5 part of sodium lignin sulfonate, 5～20 parts of sulfur, dalcium biphosphate 80～
90 parts, 10～20 parts of calcium monohydrogenphosphate, 1～3 part of magnesium phosphate, 1～3 part of iron phosphate, 1～3 part of aluminum phosphate, 1～4 part of calcium sulfate,
4～7 parts of silicon dioxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610738416.2A CN106365695A (en) | 2016-08-28 | 2016-08-28 | Production method of calcium superphosphate and calcium superphosphate prepared by same |
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| CN201610738416.2A CN106365695A (en) | 2016-08-28 | 2016-08-28 | Production method of calcium superphosphate and calcium superphosphate prepared by same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558556A (en) * | 2018-07-04 | 2018-09-21 | 郑州大学 | A method of preparing particle urea groups composite fertilizer with urea-sulfuric acid decomposing rock phosphate with hydrogen |
| CN108987749A (en) * | 2018-08-28 | 2018-12-11 | 深圳市德方纳米科技股份有限公司 | The method of ferric phosphate, the preparation method of iron manganese phosphate for lithium and lithium iron phosphate positive material are prepared by phosphorus ore |
| CN111606739A (en) * | 2020-06-17 | 2020-09-01 | 云南磷化集团海口磷业有限公司 | Sulfur-containing enriched calcium superphosphate production device and preparation method |
| CN111847409A (en) * | 2020-08-04 | 2020-10-30 | 重庆雁川化工科技有限公司 | Method for producing ground phosphate rock balls by utilizing ground phosphate rock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300835A (en) * | 2009-01-29 | 2011-12-28 | 国际壳牌研究有限公司 | Sulphur-containing fertilizers and process for the preparation thereof |
| CN102765984A (en) * | 2012-06-27 | 2012-11-07 | 华南农业大学 | Method for preparing ultramicro release accelerating phosphorus fertilizer |
| CN105254341A (en) * | 2015-08-14 | 2016-01-20 | 云南云天化股份有限公司 | Preparation method of sulfur-containing heavy calcium |
-
2016
- 2016-08-28 CN CN201610738416.2A patent/CN106365695A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102300835A (en) * | 2009-01-29 | 2011-12-28 | 国际壳牌研究有限公司 | Sulphur-containing fertilizers and process for the preparation thereof |
| CN102765984A (en) * | 2012-06-27 | 2012-11-07 | 华南农业大学 | Method for preparing ultramicro release accelerating phosphorus fertilizer |
| CN105254341A (en) * | 2015-08-14 | 2016-01-20 | 云南云天化股份有限公司 | Preparation method of sulfur-containing heavy calcium |
Non-Patent Citations (1)
| Title |
|---|
| 王正银: "《肥料研制与加工》", 31 December 2015, 北京：中国农业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558556A (en) * | 2018-07-04 | 2018-09-21 | 郑州大学 | A method of preparing particle urea groups composite fertilizer with urea-sulfuric acid decomposing rock phosphate with hydrogen |
| CN108987749A (en) * | 2018-08-28 | 2018-12-11 | 深圳市德方纳米科技股份有限公司 | The method of ferric phosphate, the preparation method of iron manganese phosphate for lithium and lithium iron phosphate positive material are prepared by phosphorus ore |
| CN111606739A (en) * | 2020-06-17 | 2020-09-01 | 云南磷化集团海口磷业有限公司 | Sulfur-containing enriched calcium superphosphate production device and preparation method |
| CN111847409A (en) * | 2020-08-04 | 2020-10-30 | 重庆雁川化工科技有限公司 | Method for producing ground phosphate rock balls by utilizing ground phosphate rock |
| CN111847409B (en) * | 2020-08-04 | 2023-09-12 | 重庆雁川化工科技有限公司 | Method for producing phosphorite powder ball by utilizing phosphorite powder |
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