CN107892612A - A kind of method for reducing high tower nitro product moisture - Google Patents
A kind of method for reducing high tower nitro product moisture Download PDFInfo
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- CN107892612A CN107892612A CN201710996662.2A CN201710996662A CN107892612A CN 107892612 A CN107892612 A CN 107892612A CN 201710996662 A CN201710996662 A CN 201710996662A CN 107892612 A CN107892612 A CN 107892612A
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- moisture
- high tower
- nitro product
- tower nitro
- map
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a kind of method for reducing high tower nitro product moisture, it is related to chemical fertilizer field.The invention provides a kind of method for reducing high tower nitro product moisture, is by adding drier in the raw material MAP more than moisture or sulphur ammonium, absorbing moisture therein by drier reduces products obtained therefrom moisture；Wherein drier is the one or more in phosphorus pentoxide, anhydrous calcium chloride, calcium oxide, calcium sulfate；Products obtained therefrom moisture treated by the present method does the characteristics of product moisture content is suitable therefore of the invention with can remove baking step, and not only simplified production procedure can also reduce production cost with drying the raw material of MAP or sulphur ammonium through fluid bed.
Description
Technical field
The invention belongs to chemical fertilizer field, and in particular to a kind of method for reducing high tower nitro product moisture.
Background technology
The problems such as compound fertilizer product moisture is too high will to cause product be easier caking, efflorescence, become mildewed, therefore producing
Product moisture, especially high tower nitro product must be strictly controlled in journey, it is in order to ensure product quality, it is necessary to controls product water
Point≤1.0%, particularly nitre sulfenyl product moisture require control≤0.6%, and usual high tower nitro production, which is taken, to be added
The MAP of drying system drying or the mode of sulphur ammonium are had been subjected to reduce the moisture of product, but this had both added production work
Skill step causes the production cost of product to increase again.
The content of the invention
It is an object of the invention to using drier phosphorus pentoxide is added in MAP or sulphur ammonium, cancel by drying
Dry systems dry MAP or sulphur ammonium this process, have not only reduced the technological process of production but also have reduced production cost.
The technical scheme is that：
A kind of method for reducing high tower nitro product moisture, making the raw material of high tower nitro product includes the first major ingredient and the
Two major ingredients, the first major ingredient include ammonium nitrate, MAP and/or sulphur ammonium, drier；Ammonium nitrate is melted at 160-175 DEG C and obtained
Fused mass, MAP and/or sulphur ammonium are mixed to get mixture with phosphorus pentoxide and second major ingredient, by fused mass
Mixed with mixture.
Preferably, fused mass is mixed with mixture and at the uniform velocity stirring obtains slurry, keep slurry temperature at 145-155 DEG C
Stir 2-4min.
Preferably, slurry temperature is kept also to include after 145-155 DEG C of stirring 2-4min：Liftoff ＜ 10cm, topple over material
On slurry to drying floor.
Preferably, drier is the one or more in phosphorus pentoxide, anhydrous calcium chloride, calcium oxide, calcium sulfate.
Preferably, drier selects phosphorus pentoxide, and purity >=98% of phosphorus pentoxide can from phosphorus pentoxide
Further make the water content of high tower nitro product reduce.
Preferably, the moisture content range 0.2%-4% of MAP, the weight of MAP account for raw material gross weight
15%-35%；Sulphur ammonium moisture content range 0.1%-2%, the weight of sulphur ammonium account for the 0%-10% of raw material gross weight；Preferably,
Ammonium nitrate purity is 99%-99.5%, moisture 0.5%-1%, and the weight of ammonium nitrate accounts for the 30%-60% of raw material gross weight；
Preferably, drier accounts for the 0.1%-0.5% of raw material gross weight, and under the proportioning, the water content of high tower nitro product is relatively low.
It is provided by the invention it is a kind of reduce high tower nitro product moisture the beneficial effect of method be：By adding drier
In the raw material MAP more than moisture or sulphur ammonium, absorbing moisture therein by drier reduces products obtained therefrom moisture；
Wherein drier is the one or more in phosphorus pentoxide, anhydrous calcium chloride, calcium oxide, calcium sulfate；Institute treated by the present method
Product moisture content with the raw material through fluid bed drying MAP or sulphur ammonium to do product moisture content suitable, therefore this hair
It is bright that there is the characteristics of can remove baking step, not only simplified production procedure can also reduce production cost.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, it is the conventional production that can be obtained by commercially available purchase
Product.
The present invention is further explained with reference to specific embodiment, will be described the optimal embodiment party of the present invention
Formula.
Embodiment 1
(1) high tower nitro 15-15-15 is formulated, total inventory 1000g；
(2) ammonium nitrate (accounting for total inventory 40.4%) is weighed in beaker according to formula rate and total inventory, in 160-175
Melted at DEG C；
(3) weighed according to formula rate and total inventory and do not dry MAP and (moisture 2.1%, account for total inventory amount
31%) sulphur ammonium (moisture 0.6%, accounting for total inventory amount 2.2%) and is not dried, and the phosphorus pentoxide for adding 0.25% weight mixes
It is even；
(4) the second major ingredient is weighed with total inventory according to formula rate to mix with (3)；
(5) (4) resulting material is at the uniform velocity added in fused materials (2) under agitation；
(6) keep slurry temperature to stir 2-4min, liftoff ＜ 10cm at 145-155 DEG C after adding material, topple over slurry to dry
Cool down, pack on dry floor, sealing；
(7) crush and carry out determination of moisture according to national standard GB/T8577-2010.
Embodiment 2
(1) fixed formula is formulated for high tower nitro 17-10-18, total inventory 1000g；
(2) ammonium nitrate (accounting for total inventory 45.2%) is weighed in beaker according to formula rate and total inventory, in 160-175
Melted at DEG C；
(3) weighed according to formula rate and total inventory and do not dry MAP and (moisture 2.1%, account for total inventory amount
23%) phosphorus pentoxide for, adding 0.25% weight mixes；
(4) the second major ingredient is weighed with total inventory according to formula rate to mix with (3)；
(5) (4) resulting material is at the uniform velocity added in fused materials (2) under agitation；
(6) keep slurry temperature to stir 2-4min, liftoff ＜ 10cm at 145-155 DEG C after adding material, topple over slurry to dry
Cool down, pack on dry floor, sealing；
(7) crush and carry out determination of moisture according to national standard GB/T8577-2010.
Embodiment 3
(1) fixed formula is formulated for high tower nitro 22-8-10, total inventory 1000g；
(2) ammonium nitrate (accounting for total inventory 58.25%) is weighed in beaker according to formula rate and total inventory, in 160-
Melted at 175 DEG C；
(3) weighed according to formula rate and total inventory and do not dry MAP and (moisture 2.1%, account for total inventory amount
15.8%) sulphur ammonium (moisture 0.6%, accounting for total inventory amount 8.0%) and is not dried, and the phosphorus pentoxide for adding 0.25% weight mixes
It is even；
(4) the second major ingredient is weighed with total inventory according to formula rate to mix with (3)；
(5) (4) resulting material is at the uniform velocity added in fused materials (2) under agitation；
(6) keep slurry temperature to stir 2-4min, liftoff ＜ 10cm at 145-155 DEG C after adding material, topple over slurry to dry
Cool down, pack on dry floor, sealing；
(7) crush and carry out determination of moisture according to national standard GB/T8577-2010.
Embodiment 4
(1) fixed formula is formulated for high tower nitro 15-15-15, total inventory 1000g；
(2) ammonium nitrate (accounting for total inventory 40.4%) is weighed in beaker according to formula rate and total inventory, in 160-175
Melted at DEG C；
(3) weighed according to formula rate and total inventory and do not dry MAP and (moisture 3.3%, account for total inventory amount
31%) sulphur ammonium (moisture 0.7%, accounting for total inventory amount 2.2%) and is not dried, and the phosphorus pentoxide for adding 0.32% weight mixes
It is even；
(4) the second major ingredient is weighed with total inventory according to formula rate to mix with (3)；
(5) (4) resulting material is at the uniform velocity added in fused materials (2) under agitation；
(6) keep slurry temperature to stir 2-4min, liftoff ＜ 10cm at 145-155 DEG C after adding material, topple over slurry to dry
Cool down, pack on dry floor, sealing；
(7) crush and carry out determination of moisture according to national standard GB/T8577-2010.
Embodiment 5
(1) fixed formula is formulated for high tower nitro 17-10-18, total inventory 1000g；
(2) ammonium nitrate (accounting for total inventory 45.2%) is weighed in beaker according to formula rate and total inventory, in 160-175
Melted at DEG C；
(3) weighed according to formula rate and total inventory and do not dry MAP and (moisture 3.3%, account for total inventory amount
23%) phosphorus pentoxide for, adding 0.32% weight mixes；
(4) the second major ingredient is weighed with total inventory according to formula rate to mix with (3)；
(5) (4) resulting material is at the uniform velocity added in fused materials (2) under agitation；
(6) keep slurry temperature to stir 2-4min, liftoff ＜ 10cm at 145-155 DEG C after adding material, topple over slurry to dry
Cool down, pack on dry floor, sealing；
(7) crush and carry out determination of moisture according to national standard GB/T8577-2010.
Embodiment 6
(1) fixed formula is formulated for high tower nitro 22-8-10, total inventory 1000g；
(2) ammonium nitrate (accounting for total inventory 58.25%) is weighed in beaker according to formula rate and total inventory, in 160-
Melted at 175 DEG C；
(3) weighed according to formula rate and total inventory and do not dry MAP and (moisture 3.3%, account for total inventory amount
15.8%) sulphur ammonium (moisture 0.7%, accounting for total inventory amount 8.0%) and is not dried, and the phosphorus pentoxide for adding 0.32% weight mixes
It is even；
(4) the second major ingredient is weighed with total inventory according to formula rate to mix with (3)；
(5) (4) resulting material is at the uniform velocity added in fused materials (2) under agitation；
(6) keep slurry temperature to stir 2-4min, liftoff ＜ 10cm at 145-155 DEG C after adding material, topple over slurry to dry
Cool down, pack on dry floor, sealing；
(7) crush and carry out determination of moisture according to national standard GB/T8577-2010.
It should be noted that the second major ingredient in above-described embodiment 1-6 mainly includes potassium resource, trace element and filler,
Wherein potassium resource includes at least one of potassium chloride and potassium sulfate.
Test example
The high tower nitro-compound fertilizer that embodiment 1-6 is provided crushes and carries out moisture survey according to national standard GB/T8577-2010
It is fixed.
Each embodiment and comparative example moisture such as table 1-6, comparative example are drying MAP (moisture 0.21%)
Or sulphur ammonium (moisture 0.11%) is plus the lower product that does of phosphorus pentoxide raw material the same terms is designated as comparative example 1, right successively
Ratio 2, comparative example 3, with do not dry MAP or sulphur ammonium material under the same conditions done product be once designated as comparative example 1., it is right
Ratio 2., comparative example 3., comparative example 4., comparative example 5., comparative example 6., determination method be according to national standard GB/T8577-2010 carry out
Measure.
Table -1
| Product | Embodiment 1 | Comparative example 1 | Comparative example is 1. |
| Moisture/% | 0.46 | 0.44 | 1.0 |
Table -2
| Product | Embodiment 2 | Comparative example 2 | Comparative example is 2. |
| Moisture/% | 0.48 | 0.45 | 0.7 |
Table -3
| Product | Embodiment 3 | Comparative example 3 | Comparative example is 3. |
| Moisture/% | 0.45 | 0.42 | 0.64 |
Table -4
| Product | Embodiment 4 | Comparative example 1 | Comparative example is 4. |
| Moisture/% | 0.50 | 0.44 | 1.8 |
Table -5
| Product | Embodiment 5 | Comparative example 2 | Comparative example is 5. |
| Moisture/% | 0.48 | 0.45 | 1.65 |
Table -6
| Product | Embodiment 6 | Comparative example 3 | Comparative example is 6. |
| Moisture/% | 0.46 | 0.42 | 1.2 |
Embodiment 1-6 can be seen that drying MAP, sulphur ammonium to product moisture compared with comparative example moisture from table 1-6
Reduction have notable effectiveness, and the addition effectiveness of phosphorus pentoxide and drying MAP or sulphur ammonium drying effectiveness are substantially suitable
It is attained by the requirement of nitro-compound fertilizer moisture；By the addition replacement drying system of phosphorus pentoxide to MAP or sulphur
Ammonium is dried, and then reduces technological process and cost-effective.
Embodiments described above is part of the embodiment of the present invention, rather than whole embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (8)
- A kind of 1. method for reducing high tower nitro product moisture, it is characterised in that making the raw material of high tower nitro product includes the One major ingredient and the second major ingredient, first major ingredient include ammonium nitrate, MAP and/or sulphur ammonium, drier；The ammonium nitrate is existed Melting obtains fused mass at 160-175 DEG C, by the MAP and/or the sulphur ammonium and the phosphorus pentoxide, Yi Jisuo State the second major ingredient and be mixed to get mixture, the fused mass is mixed with the mixture.
- 2. it is according to claim 1 reduce high tower nitro product moisture method, it is characterised in that by the fused mass with The mixture mixes and at the uniform velocity stirring obtains slurry, keeps the slurry temperature to stir 2-4min at 145-155 DEG C.
- 3. the method according to claim 1 for reducing high tower nitro product moisture, it is characterised in that keep the slurry temperature Degree also includes after 145-155 DEG C of stirring 2-4min：Liftoff ＜ 10cm, the slurry is toppled over to drying floor.
- 4. the method according to claim 1 for reducing high tower nitro product moisture, it is characterised in that the drier is five Aoxidize the one or more in two phosphorus, anhydrous calcium chloride, calcium oxide, calcium sulfate.
- 5. the method for the reduction high tower nitro product moisture according to claim 1 or 4, it is characterised in that the drier From phosphorus pentoxide, purity >=98% of the phosphorus pentoxide.
- 6. the method according to claim 1 for reducing high tower nitro product moisture, it is characterised in that the MAP Moisture content range 0.2%-4%, the weight of the MAP account for the 15%-35% of the raw material gross weight；The sulphur ammonium Moisture content range 0.1%-2%, the weight of the sulphur ammonium account for the 0%-10% of the raw material gross weight.
- 7. the method according to claim 1 for reducing high tower nitro product moisture, it is characterised in that the ammonium nitrate purity is 99%-99.5%, moisture 0.5%-1%, the weight of the ammonium nitrate account for the 30%-60% of the raw material gross weight.
- 8. the method for the reduction high tower nitro product moisture according to claim 1 or 6, it is characterised in that the drier Account for the 0.1%-0.5% of the raw material gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710996662.2A CN107892612A (en) | 2017-10-19 | 2017-10-19 | A kind of method for reducing high tower nitro product moisture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710996662.2A CN107892612A (en) | 2017-10-19 | 2017-10-19 | A kind of method for reducing high tower nitro product moisture |
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| CN107892612A true CN107892612A (en) | 2018-04-10 |
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| CN201710996662.2A Pending CN107892612A (en) | 2017-10-19 | 2017-10-19 | A kind of method for reducing high tower nitro product moisture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409959A (en) * | 2020-03-27 | 2020-07-14 | 郑利 | Method for preventing caking of chemical fertilizer and chemical product, anti-caking agent and application |
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| CN111409959A (en) * | 2020-03-27 | 2020-07-14 | 郑利 | Method for preventing caking of chemical fertilizer and chemical product, anti-caking agent and application |
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Application publication date: 20180410 |