CN102875216A - Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer - Google Patents
Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer Download PDFInfo
- Publication number
- CN102875216A CN102875216A CN2012104279594A CN201210427959A CN102875216A CN 102875216 A CN102875216 A CN 102875216A CN 2012104279594 A CN2012104279594 A CN 2012104279594A CN 201210427959 A CN201210427959 A CN 201210427959A CN 102875216 A CN102875216 A CN 102875216A
- Authority
- CN
- China
- Prior art keywords
- fertilizer
- phosphate
- control method
- slip
- magnesium sulfate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fertilizers (AREA)
Abstract
The invention discloses a control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer. The method comprises steps as follows: adding ammonium nitrate and/or nitro-phosphorus compound fertilizer and ammonium phosphate to a melting groove to be molten, so as to obtain co-melting size; transferring the co-melting size into a mixing system; and adding phosphatic fertilizer, potash fertilizer, medium trace element, magnesium sulfate monohydrate and filling materials to be uniformly mixed to obtain the mixing size; transferring the mixing size into an emulsifying system to be broken, diffused and homogenized, so as to obtain emulsion size; transferring the emulsion size into a granulation system for granulation; and then carrying out steps of heat exchange through a tower body, cooling, sieving and surface treatment and the like. According to the control method disclosed by the invention, the magnesium sulfate monohydrate is added to the mixing size, so that the particle strength of the product is averagely increased by 4 to 12N by being compared with the particle strength of the product without adding the magnesium sulfate monohydrate or without improving the melting or mixing temperature, and the free water is reduced by 0.2 to 0.4%, and the caking and chalking of the stocked product are effectively prevented, and the time of the chalking can be prolonged.
Description
Technical field
The present invention relates to a kind of high tower compound fertilizer and produce the control method of anti-caking and efflorescence, relate in particular to the control method that a kind of high-tower melting granulation is produced nitrate-based compound fertilizer anti-caking and efflorescence.
Background technology
Existing high tower nitre sulfenyl melting granulating technology generally is to be melted in the melting groove with the multiple fertilizer of ammonium nitrate or nitre phosphorus and a certain proportion of ammonium phosphate salt, heating and melting is liquid phase, and in the one-level tempering tank, add nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, middle trace element, stopping composition, the abundant mixing, further mix through the secondary tempering tank again, mixed slip enters the granulating system sprinkling pelleting, at the bottom of tower, collect fertiliser granulates, cool off, screening, surface treatment, packing form the high tower nitrate-based compound fertilizer.
Since ammonium nitrate or nitre phosphorus multiple fertile under differing temps higher, the packaging temp of the starting material moisture of the strong and work in-process moisture absorption in air in cooling, screening process of the easy water absorbability of change, the ammonium nitrate itself of crystalline structure, use do not reach normal temperature etc. problem so that the nitrate-based compound fertilizer of existing high-tower melting granulation production easily formation harden, powder phenomenon-tion.
Summary of the invention
The object of the present invention is to provide the control method of a kind of high tower nitrate-based compound fertilizer anti-caking and efflorescence, the method can improve granule strength and the glossiness of high tower nitrate-based compound fertilizer, can prevent effectively or prolong that inventory hardens and the problem of surperficial efflorescence.
For achieving the above object, the invention provides following technical scheme:
The control method of a kind of high tower nitrate-based compound fertilizer anti-caking and efflorescence said method comprising the steps of:
(1) ammonium nitrate and/or the multiple fertilizer of nitre phosphorus are melted with ammonium phosphate salt adding melting groove, melted altogether slip;
(2) will melt altogether slip and send into the heating mixing system, and add nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, middle trace element, magnesium sulfate monohydrate and stopping composition and mix and obtain mixed slurry;
(3) mixed slurry is sent into emulsifying system and carried out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
(4) the emulsification slip is sent into granulating system and carry out granulation, and through obtaining the nitrate-based compound fertilizer particle after tower body heat exchange and the cooling.
Since in granulation slurry, add a certain proportion of magnesium sulfate monohydrate make product in the cooling forming crystallisation process in the magnesium sulfate monohydrate absorption slip moisture make the part free-water be converted into crystal water, make that free-water becomes five water or magnesium sulfate heptahydrate in the magnesium sulfate monohydrate absorption slip, carrying out chelatropic reaction with material in the slip makes the reactive material molecular structure more stable, melt temperature improves 4-6 ℃, thereby mixing temperature improves 5-7 ℃ of granule strength and the glossiness that improve product, can make the granule strength of composite fertilizer on average increase 4-12N than the compound fertilizer granules intensity that does not add magnesium-containing compound, free-water reduces 0.2-0.4%, therefore, can effectively reduce the problem of compound fertilizer granules surface efflorescence, reach inventory and do not harden with efflorescence 〉=6 month and improved the glossiness of compound fertilizer granules.Add in the present invention magnesium sulfate monohydrate and can also increase the required magnesium elements of crop, because magnesium is the photosynthesis that chlorophyllous important component can promote crop, therefore, in fertilizer, add the growth that magnesium-containing compound also can promote plant.
Preferably, the addition of described magnesium sulfate monohydrate is the 1%-4% of total producting proportion by weight.
Preferably, the melting temperature (Tm) in the step (1) is 152-158 ℃; Mixing temperature in the step (2) is 150-162 ℃.
Preferably, the ammonium phosphate salt described in the step (1) comprises one or both of monoammonium phosphate, diammonium phosphate; Nitrogenous fertilizer is one or both of ammonium sulfate, ammonium chloride; Stopping composition is one or both of stone flour, dry powder.
The ammonium phosphate salt of the 15-20% weight of adding in step (1) can also play reduction ammonium nitrate or nitre phosphate fertilizer fusing point can promote the effect that ammonium nitrate or nitre phosphate fertilizer mixture melt.
Existing high tower fused melt granulated melting temperature (Tm) is generally 148-152 ℃, mixing temperature is generally 145-155 ℃, in the present invention by adding the application of magnesium sulfate monohydrate and cooling apparatus, thereby melting temperature (Tm) brought up to as 152-158 ℃, mixing temperature bring up to 150-162 ℃, therefore can better improve moisture evaporation in the slip, thereby the moisture in the reduction product, thereby effectively reduced the problem that complex fertilizer product easily hardens, and can improve cooling performance, raising granulation one-pass finished rate.
Preferably, described phosphate fertilizer comprises one or more the combination in monoammonium phosphate, diammonium phosphate, potassium primary phosphate, fused(calcium magnesium)phosphate, general calcium and the coarse whiting.
Preferably, described potash fertilizer comprises one or more the combination in Repone K, vitriolate of tartar, potassium primary phosphate, saltpetre and the potassium magnesium sulfate.
Preferably, the screening of compound fertilizer granules process, the surface treatment that step (4) are obtained.Compound fertilizer granules is sieved, can play and remove the underproof particle of granular size in the product; Compound fertilizer granules is carried out oil spout, face powder surface treatment step, thereby play the caking probability that reduces compound fertilizer granules.
Used equipment is one or more the combination in air rotating cylinder cooling cylinder, vibrated fluidized bed water cooler and the ebullated bed water cooler in the control method cooling step of the present invention; Used equipment is linear vibrating screen or reciprocating oscillating screen in the screening step.
Middle trace element described in the present invention is compound conventional in the compound fertilizer production by tower granulation, mainly comprises one or more the combination in zinc sulfate, sulfuric acid boron, ferrous sulfate and the sulphur.
Embodiment
The present invention will be further explained and explanation below in conjunction with embodiment.The parts by weight of following examples one raw material of each except magnesium sulfate monohydrate in four, melting temperature (Tm) in the production, mixing temperature is all identical, and the parts by weight of embodiment five raw material of each except magnesium sulfate monohydrate in eight, melting temperature (Tm) in the production, mixing temperature all identical purpose is the average grain intensity of relatively producing the nitrate-based compound fertilizer product of gained for better, hardening and the efflorescence situation of average grain water content and inventory, rather than to the restriction of each raw material weight umber and raw material type, remove magnesium sulfate monohydrate among the present invention, outside the ammonium phosphate salt in the step (1), the parts by weight of all the other each raw materials are the ratio of weight and number that existing high tower prilling is produced the routine of nitrate-based compound fertilizer: 0 ~ 10 part of ammonium nitrate, 0 ~ 40 part of nitre phosphorus is multiple fertile, 0 ~ 3 part of ammonium sulfate, 10 ~ 50 parts of nitrogenous fertilizer, 10 ~ 50 parts of phosphate fertilizer, 10 ~ 50 parts of potash fertilizer, 0.1 trace element and 0 ~ 10 part of stopping composition in ~ 3 parts.
Embodiment one:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 150 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and add 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 3.5 parts of stone flours, 0.5 part of zn cpds and under 152 ℃, mix and obtain mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the surface treatment, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.1%, and the mass content of phosphorus is 15.1%, and the mass content of potassium is 14.7%, average grain intensity 〉=32N, and average grain water content≤1.02% did not harden and efflorescence in inventory 1-2 month.
Embodiment two:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 150 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and the magnesium sulfate monohydrate that adds 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 2.5 parts of stone flours, 0.5 part of zn cpds and 1 part mixes under 152 ℃ and obtains mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the surface treatment, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.5%, and the mass content of phosphorus is 15.5%, and the mass content of potassium is 15.2%, average grain intensity 〉=34.8N, and average grain water content≤0.96%, month do not harden and efflorescence in inventory 〉=2.
Embodiment three:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 150 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and the magnesium sulfate monohydrate that adds 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 1.5 parts of stone flours, 0.5 part of zn cpds and 2 parts mixes under 152 ℃ and obtains mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the oil spout processing, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.4%, and the mass content of phosphorus is 15.3%, and the mass content of potassium is 15.0%, average grain intensity 〉=36.5N, and average grain water content≤0.91% did not harden and efflorescence in inventory 〉=3-4 month.
Embodiment four:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 150 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and the magnesium sulfate monohydrate that adds 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 0.5 part of zn cpds and 3.5 parts mixes under 152 ℃ and obtains mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the surface treatment, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.8%, and the mass content of phosphorus is 15.7%, and the mass content of potassium is 15.3%, average grain intensity 〉=38N, and average grain water content≤0.85%, month do not harden and efflorescence in inventory 〉=4.
Embodiment five:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 154 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and add 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 3.5 parts of stone flours, 0.5 part of zn cpds and under 157 ℃, mix and obtain mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the surface treatment, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.1%, and the mass content of phosphorus is 15.1%, and the mass content of potassium is 14.7%, average grain intensity 〉=34N, and average grain water content≤0.92% did not harden and efflorescence in inventory 〉=2-4 month.
Embodiment six:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 154 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and the magnesium sulfate monohydrate that adds 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 2.5 parts of stone flours, 0.5 part of zn cpds and 1 part mixes under 157 ℃ and obtains mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the oil spout processing, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.4%, and the mass content of phosphorus is 15.3%, and the mass content of potassium is 15.0%, average grain intensity 〉=37N, and average grain water content≤0.83%, month do not harden and efflorescence in inventory 〉=4.
Embodiment seven:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 154 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and the magnesium sulfate monohydrate that adds 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 2.5 parts of stone flours, 0.5 part of zn cpds and 2 parts mixes under 157 ℃ and obtains mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the surface treatment, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.5%, and the mass content of phosphorus is 15.5%, and the mass content of potassium is 15.2%, average grain intensity 〉=40N, and average grain water content≤0.75% did not harden and efflorescence in inventory 〉=4-6 month.
Embodiment eight:
Step 1: 3 parts of ammonium nitrate, 35 parts of nitre phosphorus are melted groove multiple fertile the adding with 20 parts of monoammonium phosphates, 154 ℃ of lower meltings, melted altogether slip;
Step 2: will melt altogether slip and send into mixing system, and the magnesium sulfate monohydrate that adds 1 part ammonium sulfate, 7 parts monoammonium phosphate, 30 parts vitriolate of tartar, 0.5 part of zn cpds and 3.5 parts mixes under 157 ℃ and obtains mixed slurry;
Step 3: mixed slurry is sent into emulsifying system carry out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
Step 4: the emulsification slip is sent into granulating system carry out granulation, and through after tower body heat exchange, cooling, screening and the surface treatment, obtain described compound fertilizer granules.
After testing, the mass content of composite fertilizer's nitrogen of gained is 15.8%, and the mass content of phosphorus is 15.7%, and the mass content of potassium is 15.3%, average grain intensity 〉=43N, and average grain water content≤0.67%, month do not harden and efflorescence in inventory 〉=6.
1., phosphorus content detection operative norm is GB/T8573-2010 the sampling of complex fertilizer product phosphorus content, nitrogen content, potassium content, grain graininess, water content is that sampling according to composite fertilizer's standard GB/T 15063 regulations is carried out with detection method with detecting among the above embodiment one to eight:; 2., nitrogen content detection operative norm is GB/T8572-2010; 3., potassium content detection operative norm is GB/T8574-2010; 4., grain graininess detection operative norm is the GB15063-2009 appendix A; 5., water content detection operative norm is GB/T8576-2010.
1., average grain intensity detection standard above inventory average grain intensity, the detection of not hardening with not efflorescence result are to adopt the ecological limited-liability company in fragrant plant field, Shenzhen City, Guangdong Province enterprise-quality standard to measure:: get in the product 30 of diameter 2.0-2.8MM particles and carry out individual seed strength with the automatic intensity meter of standard and measure, the intensity results value is got 30 granule strength mean values; 2., standard does not harden: raise 40 centimeters and keep flat nature and fall and entirely scatter, caking thing maximum diameter≤2 centimeters, caking rate≤5.0%; 3., not efflorescence standard: particle surface with produce sample solid colour on duty and glossy penetrating sense, without harsh feeling, color bleach with become fiber crops, particle surface come off into dust or all efflorescence be meal.
From above embodiment, can see, under identical melting temperature (Tm) and mixing temperature, the magnesium sulfate monohydrate that adds in process of production the 1-4% weight percent, the average grain intensity of energy Effective Raise complex fertilizer product, reduce the average grain water content of complex fertilizer product, thereby improve hardening and surperficial pulverizing problem of inventory.And, identical raw material weight than under, improve melting temperature (Tm) and mixing temperature, average grain intensity that also can the Effective Raise complex fertilizer product reduces the average grain water content of complex fertilizer product, thereby improves hardening and surperficial pulverizing problem of inventory.
Claims (7)
1. the control method of a high tower nitrate-based compound fertilizer anti-caking and efflorescence said method comprising the steps of:
(1) ammonium nitrate and/or the multiple fertilizer of nitre phosphorus are melted with ammonium phosphate salt adding melting groove, melted altogether slip;
(2) will melt altogether slip and send into the heating mixing system, and add nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, middle trace element, magnesium sulfate monohydrate and stopping composition and mix and obtain mixed slurry;
(3) mixed slurry is sent into emulsifying system and carried out fragmentation, dispersion, emulsification and homogeneous, form the emulsification slip;
(4) the emulsification slip is sent into granulating system and carry out granulation, and through obtaining the nitrate-based compound fertilizer particle after tower body heat exchange and the cooling.
2. control method according to claim 1 is characterized in that: the described magnesium sulfate monohydrate that adds in mixed slurry is 1-4% by weight.
3. control method according to claim 1, it is characterized in that: the melting temperature (Tm) in the step (1) is 152-158 ℃; Mixing temperature in the step (2) is 150-162 ℃.
4. control method according to claim 1, it is characterized in that: the ammonium phosphate salt described in the step (1) comprises one or both of monoammonium phosphate, diammonium phosphate; Nitrogenous fertilizer is one or both of ammonium sulfate, ammonium chloride; Stopping composition is one or both of stone flour, dry powder.
5. control method according to claim 1 is characterized in that: described phosphate fertilizer comprises one or more the combination in monoammonium phosphate, diammonium phosphate, potassium primary phosphate, fused(calcium magnesium)phosphate, general calcium and the coarse whiting.
6. control method according to claim 1 is characterized in that: described potash fertilizer comprises one or more the combination in Repone K, vitriolate of tartar, potassium primary phosphate, saltpetre and the potassium magnesium sulfate.
7. control method according to claim 1, it is characterized in that: the compound fertilizer granules that step (4) is obtained sieves and surface treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104279594A CN102875216B (en) | 2012-10-31 | 2012-10-31 | Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104279594A CN102875216B (en) | 2012-10-31 | 2012-10-31 | Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102875216A true CN102875216A (en) | 2013-01-16 |
| CN102875216B CN102875216B (en) | 2013-11-27 |
Family
ID=47476778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104279594A Active CN102875216B (en) | 2012-10-31 | 2012-10-31 | Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102875216B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193533A (en) * | 2013-03-27 | 2013-07-10 | 徐州市芭田生态有限公司 | Method for improving and stabilizing high tower nitro sulfenyl composite fertilizer product |
| CN103224431A (en) * | 2013-05-06 | 2013-07-31 | 菏泽金正大生态工程有限公司 | Fertilizer for preventing soil hardening and preparation method thereof |
| CN103787741A (en) * | 2014-01-02 | 2014-05-14 | 安徽省龙晨肥业有限公司 | Novel nitro-compound fertilizer |
| CN104961535A (en) * | 2015-06-19 | 2015-10-07 | 陕西博农农资有限公司 | Potassium nitrate water-soluble compound fertilizer and method for manufacturing same |
| CN105431396A (en) * | 2013-07-11 | 2016-03-23 | 矿产及化学公司欧洲化学股份公司 | Method for producing granulated nitrogen-potash fertilizer |
| CN106396915A (en) * | 2016-08-31 | 2017-02-15 | 宜昌富升化工有限公司 | Fully water-soluble nitro-sulfur based composite fertilizer and preparation method thereof |
| CN106927940A (en) * | 2015-12-29 | 2017-07-07 | 深圳市芭田生态工程股份有限公司 | Composite fertilizer and preparation method thereof |
| CN108046871A (en) * | 2017-12-21 | 2018-05-18 | 山东聊城鲁西硝基复肥有限公司 | A kind of method for adding in inorganic salts and improving nitro-compound fertilizer product quality |
| CN108586042A (en) * | 2018-05-22 | 2018-09-28 | 亳州司尔特生态肥业有限公司 | A kind of method for preparing fertilizer free of drying |
| CN109180287A (en) * | 2018-11-28 | 2019-01-11 | 四川金象赛瑞化工股份有限公司 | A kind of fertilizer special for peanuts and preparation method thereof |
| CN110981583A (en) * | 2020-01-02 | 2020-04-10 | 四川金象赛瑞化工股份有限公司 | Nitro-compound fertilizer and preparation method thereof |
| CN113214023A (en) * | 2021-02-04 | 2021-08-06 | 深圳德钾盐贸易有限公司 | High-magnesium nitrogen potassium compound fertilizer, preparation method thereof and mineral source long-acting magnesium nitrogen potassium compound fertilizer |
| CN113277912A (en) * | 2021-05-28 | 2021-08-20 | 河北冀衡赛瑞化工有限公司 | Production method of high-granulation nitro-sulfur-based nitrogen fertilizer |
| CN113956107A (en) * | 2021-12-14 | 2022-01-21 | 新洋丰农业科技股份有限公司 | Preparation method of anti-caking high-tower full-water-soluble nitro compound fertilizer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263880A (en) * | 2000-02-03 | 2000-08-23 | 张秋贵 | Puffed compoite fertilizer and its preparing process |
| CN1320587A (en) * | 2001-05-22 | 2001-11-07 | 山东省农业科学院土壤肥料研究所 | High-concentration multi-element liquid fertilizer and its preparing process |
| CN101370752A (en) * | 2006-01-13 | 2009-02-18 | 霍尼韦尔国际公司 | Stabilized compositions comprising ammonium nitrate |
-
2012
- 2012-10-31 CN CN2012104279594A patent/CN102875216B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263880A (en) * | 2000-02-03 | 2000-08-23 | 张秋贵 | Puffed compoite fertilizer and its preparing process |
| CN1320587A (en) * | 2001-05-22 | 2001-11-07 | 山东省农业科学院土壤肥料研究所 | High-concentration multi-element liquid fertilizer and its preparing process |
| CN101370752A (en) * | 2006-01-13 | 2009-02-18 | 霍尼韦尔国际公司 | Stabilized compositions comprising ammonium nitrate |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193533A (en) * | 2013-03-27 | 2013-07-10 | 徐州市芭田生态有限公司 | Method for improving and stabilizing high tower nitro sulfenyl composite fertilizer product |
| CN103193533B (en) * | 2013-03-27 | 2014-12-24 | 徐州市芭田生态有限公司 | Method for improving and stabilizing high tower nitro sulfenyl composite fertilizer product |
| CN103224431A (en) * | 2013-05-06 | 2013-07-31 | 菏泽金正大生态工程有限公司 | Fertilizer for preventing soil hardening and preparation method thereof |
| CN103224431B (en) * | 2013-05-06 | 2014-11-05 | 菏泽金正大生态工程有限公司 | Fertilizer for preventing soil hardening and preparation method thereof |
| CN105431396A (en) * | 2013-07-11 | 2016-03-23 | 矿产及化学公司欧洲化学股份公司 | Method for producing granulated nitrogen-potash fertilizer |
| CN105431396B (en) * | 2013-07-11 | 2020-04-14 | 矿产及化学公司欧洲化学股份公司 | Method for producing granular nitrogen-potassium fertilizer |
| CN103787741A (en) * | 2014-01-02 | 2014-05-14 | 安徽省龙晨肥业有限公司 | Novel nitro-compound fertilizer |
| CN104961535A (en) * | 2015-06-19 | 2015-10-07 | 陕西博农农资有限公司 | Potassium nitrate water-soluble compound fertilizer and method for manufacturing same |
| CN106927940A (en) * | 2015-12-29 | 2017-07-07 | 深圳市芭田生态工程股份有限公司 | Composite fertilizer and preparation method thereof |
| CN106396915A (en) * | 2016-08-31 | 2017-02-15 | 宜昌富升化工有限公司 | Fully water-soluble nitro-sulfur based composite fertilizer and preparation method thereof |
| CN108046871A (en) * | 2017-12-21 | 2018-05-18 | 山东聊城鲁西硝基复肥有限公司 | A kind of method for adding in inorganic salts and improving nitro-compound fertilizer product quality |
| CN108586042A (en) * | 2018-05-22 | 2018-09-28 | 亳州司尔特生态肥业有限公司 | A kind of method for preparing fertilizer free of drying |
| CN109180287A (en) * | 2018-11-28 | 2019-01-11 | 四川金象赛瑞化工股份有限公司 | A kind of fertilizer special for peanuts and preparation method thereof |
| CN110981583A (en) * | 2020-01-02 | 2020-04-10 | 四川金象赛瑞化工股份有限公司 | Nitro-compound fertilizer and preparation method thereof |
| CN113214023A (en) * | 2021-02-04 | 2021-08-06 | 深圳德钾盐贸易有限公司 | High-magnesium nitrogen potassium compound fertilizer, preparation method thereof and mineral source long-acting magnesium nitrogen potassium compound fertilizer |
| CN113277912A (en) * | 2021-05-28 | 2021-08-20 | 河北冀衡赛瑞化工有限公司 | Production method of high-granulation nitro-sulfur-based nitrogen fertilizer |
| CN113277912B (en) * | 2021-05-28 | 2023-02-17 | 河北冀衡赛瑞化工有限公司 | Production method of high-granulation nitro-sulfur-based nitrogen fertilizer |
| CN113956107A (en) * | 2021-12-14 | 2022-01-21 | 新洋丰农业科技股份有限公司 | Preparation method of anti-caking high-tower full-water-soluble nitro compound fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102875216B (en) | 2013-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102875216B (en) | Control method for preventing caking and chalking of high-tower nitro-sulfenyl compound fertilizer | |
| CN100410213C (en) | Complex fertilizer production method without drying process | |
| US5653782A (en) | Process for the manufacture of sulfur-containing fertilizers | |
| CA2808200C (en) | Sulphur-based fertilizer composition with low rock phosphate content | |
| CN102633553B (en) | Method for producing high-tower ammonium phosphate compound fertilizer | |
| CZ20004926A3 (en) | Process for preparing granules of compound fertilizers | |
| CN101165012B (en) | High tower slow release composite fertilizer containing ureaformaldehyde and producing method thereof | |
| CN104803736A (en) | Technological method for steam-free compound fertilizer production | |
| CN1891678A (en) | Method for producing NPK compound-mixed fertilizer using ammonia nitrate as raw material | |
| EA025226B1 (en) | Method for production of granular compound fertilizers | |
| CN104609919B (en) | A kind of method of low cost manufacture a great number of elements water-soluble fertilizer | |
| EP1230197B1 (en) | A process for manufacturing compound fertilizer granules | |
| CN104529564A (en) | Quick-acting granular magnesium sulfate fertilizer and preparation method thereof | |
| CN1130323C (en) | process for preparing high-concentration granular composite N-K fertilizer | |
| CN104387156B (en) | A kind of improvement technique producing spheric granules nitrogen-phosphorus-potassium compound fertilizer based on Nitro Phosphate Unit | |
| CN103588543B (en) | Production method for multi-nutrient urea sulfuric acid sulfur-based composite fertilizer | |
| CN101857476A (en) | Method for preparing compound fertilizer by adopting low-temperature fertilizer slurry pelleting | |
| CN101486610A (en) | Compound fertilizer production method without drying process | |
| CN101195551A (en) | Method for improving balling ratio of complex fertilizer product | |
| CN100484905C (en) | Method for preparing composite fertilizer by smelting solid material | |
| CN100383091C (en) | Granulating Method in tower type for producing complex fertilizer of nitrogen, phosphor and potass | |
| CN106278439A (en) | A kind of production method of urea-base compound fertilizer | |
| CN102070358B (en) | Method for preparing round and granular potassic fertilizer by utilizing post precipitation salt of phosphoric acid | |
| CN1446781A (en) | Modified explosion protection ammonium nitrate containing phosphor or phosphor and potassium | |
| CN108002910A (en) | Reduce the method and fertilizer of compound fertilizer from caking and dusting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |