CN113200779A - Calcium magnesium phosphate fertilizer disintegrating agent and application thereof - Google Patents
Calcium magnesium phosphate fertilizer disintegrating agent and application thereof Download PDFInfo
- Publication number
- CN113200779A CN113200779A CN202110439540.XA CN202110439540A CN113200779A CN 113200779 A CN113200779 A CN 113200779A CN 202110439540 A CN202110439540 A CN 202110439540A CN 113200779 A CN113200779 A CN 113200779A
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- Prior art keywords
- phosphate fertilizer
- disintegrating agent
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- magnesium phosphate
- calcium magnesium
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Classifications
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- 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
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
-
- 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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/10—Solid or semi-solid fertilisers, e.g. powders
- C05G5/12—Granules or flakes
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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 discloses a calcium magnesium phosphate fertilizer disintegrating agent and application thereof, which is characterized in that: the calcium magnesium phosphate fertilizer disintegrating agent consists of 1-10 parts of urea, 1-10 parts of amide, 1-10 parts of polyvinyl alcohol, 1-10 parts of penetrating agent, 1-20 parts of disintegrating agent and 40-90 parts of water, wherein the penetrating agent and the disintegrating agent are added into a binding material consisting of the urea, the amide, the polyvinyl alcohol and the water and are dissolved and mixed uniformly to form the disintegrating agent with both binding granulation effect and disintegrating effect. When the calcium magnesium phosphate fertilizer is produced by granulation, a disintegrating agent is added in a liquid phase manner in the granulation process, and the using amount of the disintegrating agent is 1-20% of the mass of the calcium magnesium phosphate fertilizer; the granules are dried to form round granular calcium magnesium phosphate fertilizer granules with certain strength, and the granules are quickly disintegrated in water with disintegration time less than or equal to 5 min.
Description
Technical Field
The invention relates to the technical field of agricultural science, in particular to a calcium magnesium phosphate fertilizer disintegrating agent and application thereof.
Background
The calcium magnesium phosphate fertilizer is a Ju soluble phosphate fertilizer, is rich in various nutrient elements, has the advantage of convenient use after being prepared into granules, can also be used as a mixed fertilizer raw material, and can be used for mechanical fertilization and seed fertilizer simultaneous sowing, but the circular granules have the function of slowing down the nutrient release of the calcium magnesium phosphate fertilizer, and are not beneficial to the absorption and utilization of crops. The disintegrant is added into the round granular calcium magnesium phosphate fertilizer, which is favorable for the disperse utilization of the nutrients of the granular calcium magnesium phosphate fertilizer.
The calcium magnesium phosphate fertilizer is a sand mould material, has no caking property, needs to be added with an adhesive material for granulation and balling, and the disintegrant needs to be quickly disintegrated when the particles are in contact with water, which is a contradiction. How to improve granulation balling-up property and have the disintegration function is an important problem of round particle calcium magnesium phosphate fertilizer products.
CN110237261A discloses a composite disintegrating agent and a preparation method thereof, the components of the composite disintegrating agent comprise microcrystalline cellulose, mannitol, xylitol, anhydrous calcium hydrophosphate and crospovidone, the components are mixed according to weight percentage, and the composite disintegrating agent is obtained by mixing, pulping and spray drying.
CN106220338A discloses a granulation disintegrating agent for producing round granular mineral fertilizer, which comprises 40-70% of bentonite, 25-55% of lignin and lignin derivatives, 2-3% of potassium chloride and 1-2% of calcium chloride. The bentonite is partially or completely replaced by attapulgite. The lignin derivatives are acetyl lignin, methyl lignin, halogenated lignin, sulfonated lignin and nitrated lignin which are respectively obtained after lignin acetylation, methylation, halogenation, sulfonation and nitration. The granulation disintegrating agent can simultaneously meet the two requirements of high strength and quick disintegration of the granular mineral fertilizer.
CN110859964A discloses the use of oxidized cyclodextrin in the preparation of disintegrant, and by controlling the degree of oxidation of cyclodextrin, the disintegration time of drug using the oxidized cyclodextrin as disintegrant can be controlled. Tests show that the disintegration time is reduced along with the increase of the oxidation degree of the cyclodextrin, and the cyclodextrin is not reduced to a certain degree and tends to be stable, so that the oxidized cyclodextrin meeting the requirement can be selected as a disintegrant according to the disintegration time required by a target drug, and the time for searching a proper disintegrant is shortened.
CN107129343A discloses a special disintegrating agent for compound fertilizer particles, which comprises the following components: 20-60% of talcum powder, 15-25% of gypsum powder, 0-15% of sodium chloride, 10-50% of PBTCA (2-phosphate-1, 2, 4-tricarboxylic acid butane), 5-15% of alpha-sodium alkenyl sulfonate, 10-40% of CMS-Na (sodium carboxymethyl starch) and 0-15% of sodium tripolyphosphate. The compound fertilizer has the advantages of wide raw material source, low cost, simple preparation, easy production, no three-waste pollution, capability of causing compound fertilizer particles to disintegrate within 2-5 minutes and remarkable effect.
CN1865287A discloses a preparation method of disintegrant sodium carboxymethyl starch, which takes starch as raw material, comprises the unit processes of crosslinking, etherification, refining, drying and the like, and is characterized in that: and the etherification is carried out after ethylene oxide or propylene oxide accounting for 1.2-4.5% of the weight of the starch is added. The product has 25 times of water absorption expansion and good fluidity when used as a disintegrating agent.
The disintegrating agent in the patents is unfavorable for the bonding granulation of the Ju soluble calcium magnesium phosphate fertilizer, and can not achieve the effects of promoting granulation and increasing disintegration speed.
Disclosure of Invention
The calcium magnesium phosphate fertilizer disintegrating agent is prepared by adding a penetrating agent and a disintegrating material into a binding material, so that the disintegrating agent with the binding granulation effect is formed, and the defect that the disintegrating agent has adverse effect on granulation is overcome. The disintegrating agent is added in a liquid phase mode in the granulation process of the calcium magnesium phosphate fertilizer to play a role of bonding into balls, the particles form particles with certain strength after being dried, the particles are quickly disintegrated after being placed in water, and the disintegration time is less than or equal to 5 min.
The technical scheme of the invention is as follows:
a calcium magnesium phosphate fertilizer disintegrating agent is characterized in that: 1-10 parts of urea, 1-10 parts of amide, 1-10 parts of polyvinyl alcohol, 1-10 parts of penetrating agent, 1-20 parts of disintegrating agent and 40-90 parts of water, wherein the penetrating agent and the disintegrating agent are added into a bonding material consisting of the urea, the amide, the polyvinyl alcohol and the water and are dissolved and mixed uniformly to form the disintegrating agent with bonding granulation function and disintegrating function.
The amide is one or a mixture of two of polyacrylamide and caprolactam.
The penetrant is one or a mixture of two or more of sulfated castor oil, sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium alkyl sulfate, secondary alkyl sodium sulfonate, secondary alkyl sodium sulfate, alpha-alkenyl sodium sulfonate, alkyl naphthalene sodium sulfonate, succinic acid alkyl ester sodium sulfonate, sodium aminosulfonate, fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene ether and polyether.
The disintegrating agent is one or a mixture of two or more of starch, gelatinized starch and dextrin.
The application of the calcium magnesium phosphate fertilizer disintegrating agent is characterized in that: when the calcium magnesium phosphate fertilizer is produced by granulation, a disintegrating agent is added in a liquid phase manner in the granulation process, and the using amount of the disintegrating agent is 1-20% of the mass of the calcium magnesium phosphate fertilizer; the granules are dried to form round granules of calcium magnesium phosphate fertilizer granules with certain strength, and the granules are quickly disintegrated after being put into water.
The disintegration time of the prepared round particle calcium magnesium phosphate fertilizer is less than or equal to 5 min.
The calcium magnesium phosphate fertilizer disintegrating agent is prepared by adding penetrant and disintegrating material into binding material composed of urea, amide, polyvinyl alcohol, etc., so that the disintegrating agent with both binding granulation and disintegrating functions is formed. When the calcium magnesium phosphate fertilizer is produced by granulation, a disintegrating agent is added in a liquid phase manner in the granulation process to play a role of bonding into balls, the particles form particles with certain strength after being dried, the particles are quickly disintegrated after being placed into water, and the disintegration time is less than or equal to 5 min.
Detailed Description
The present invention will be further described with reference to examples. The raw materials of the invention are purchased directly.
Embodiment 1
1 part of urea, 9 parts of polyacrylamide and 5 parts of polyvinyl alcohol, the three substances are sequentially added into 70 parts of water, stirred and heated to 90 ℃, after being completely dissolved, 5 parts of sulfated castor oil are added, the heating and stirring are continued for 5min, then 5 parts of starch and dextrin are added respectively, after being completely dissolved, the temperature is reduced to 60 ℃, the heat preservation and the stirring are carried out for 30min, and the disintegrating agent can be obtained. During the process of granulating the powdery calcium magnesium phosphate fertilizer, a disintegrating agent accounting for 5 percent of the mass of the calcium magnesium phosphate fertilizer is added in a spraying mode, the particles gradually grow into balls, and the round granular calcium magnesium phosphate fertilizer which can be rapidly disintegrated can be obtained after drying, wherein the disintegration time is 10 s.
Example II
10 parts of urea, 2 parts of caprolactam and 10 parts of polyvinyl alcohol, the three substances are sequentially added into 68 parts of water, stirred and heated to 90 ℃, after the three substances are completely dissolved, 5 parts of sodium secondary alkyl sulfate is added, the heating and stirring are continued for 5min, then 5 parts of starch are added, after the three substances are completely dissolved, the temperature is reduced to 60 ℃, the heat preservation and the stirring are carried out for 30min, and the disintegrating agent can be obtained. During the process of granulating the powdery calcium magnesium phosphate fertilizer, a disintegrating agent accounting for 5 percent of the mass of the calcium magnesium phosphate fertilizer is added in a spraying mode, the particles gradually grow into balls, and the round granular calcium magnesium phosphate fertilizer which can be rapidly disintegrated can be obtained after drying, wherein the disintegration time is 30 s.
Example three
5 parts of urea, 2.5 parts of polyacrylamide, 2.5 parts of caprolactam and 2 parts of polyvinyl alcohol, the three substances are sequentially added into 73 parts of water, stirred and heated to 90 ℃, after being completely dissolved, 2.5 parts of sodium alkyl sulfosuccinate and 2.5 parts of sodium sulfamate are added, the mixture is continuously heated and stirred for 5min, then 10 parts of dextrin is added, after being completely dissolved, the mixture is cooled to 60 ℃, the temperature is kept and the mixture is stirred for 30min, and the disintegrating agent can be obtained. During the process of granulating the powdery calcium magnesium phosphate fertilizer, a disintegrating agent accounting for 15 percent of the mass of the calcium magnesium phosphate fertilizer is added in a spraying mode, the particles gradually grow into balls, and the round granular calcium magnesium phosphate fertilizer which can be rapidly disintegrated can be obtained after drying, wherein the disintegration time is 50 s.
Example four
10 parts of urea, 2 parts of polyacrylamide and 3 parts of polyvinyl alcohol, which are sequentially added into 60 parts of water, stirred and heated to 90 ℃, after the three substances are completely dissolved, 5 parts of polyether is added, the heating and stirring are continued for 5min, then 10 parts of starch and dextrin are added, after the three substances are completely dissolved, the temperature is reduced to 60 ℃, the heat preservation and the stirring are carried out for 30min, and the disintegrating agent can be obtained. During the process of granulating the powdery calcium magnesium phosphate fertilizer, a disintegrating agent accounting for 1 percent of the mass of the calcium magnesium phosphate fertilizer is added in a spraying mode, the particles gradually grow into balls, and the round granular calcium magnesium phosphate fertilizer which can be rapidly disintegrated can be obtained after drying, wherein the disintegration time is 50 s.
Example five
3 parts of urea, 10 parts of polyacrylamide and 1 part of polyvinyl alcohol, sequentially adding the three substances into 75 parts of water, stirring and heating to 90 ℃, adding 10 parts of fatty alcohol-polyoxyethylene ether after all the substances are dissolved, continuing heating and stirring for 5min, then adding 1 part of dextrin, cooling to 60 ℃ after all the substances are dissolved, preserving heat and stirring for 30min to obtain the disintegrating agent. During the process of granulating the powdery calcium magnesium phosphate fertilizer, a disintegrating agent accounting for 1 percent of the mass of the calcium magnesium phosphate fertilizer is added in a spraying mode, the particles gradually grow into balls, and the round granular calcium magnesium phosphate fertilizer which can be rapidly disintegrated can be obtained after drying, wherein the disintegration time is 100 s.
Example six
2 parts of urea, 1 part of polyacrylamide and 2 parts of polyvinyl alcohol, sequentially adding the three substances into 90 parts of water, stirring and heating to 90 ℃, adding 1 part of fatty alcohol-polyoxyethylene ether after the three substances are completely dissolved, continuously heating and stirring for 5min, then adding 4 parts of dextrin, cooling to 60 ℃ after the three substances are completely dissolved, preserving heat and stirring for 30min to obtain the disintegrating agent. During the process of granulating the powdery calcium magnesium phosphate fertilizer, a disintegrating agent accounting for 1 percent of the mass of the calcium magnesium phosphate fertilizer is added in a spraying mode, the particles gradually grow into balls, and the round granular calcium magnesium phosphate fertilizer which can be rapidly disintegrated can be obtained after drying, wherein the disintegration time is 120 s.
Example six
10 parts of urea, 10 parts of caprolactam and 10 parts of polyvinyl alcohol, the three substances are sequentially added into 40 parts of water, stirred and heated to 90 ℃, 10 parts of sodium alkyl sulfosuccinate are added after being completely dissolved, the mixture is continuously heated and stirred for 5min, then 10 parts of starch and dextrin are added respectively, the mixture is completely dissolved, and the mixture is cooled to 60 ℃ and is kept warm and stirred for 30min, thus obtaining the disintegrating agent. During the process of granulating the powdery calcium magnesium phosphate fertilizer, a disintegrating agent accounting for 1 percent of the mass of the calcium magnesium phosphate fertilizer is added in a spraying mode, the particles gradually grow into balls, and the round granular calcium magnesium phosphate fertilizer which can be rapidly disintegrated can be obtained after drying, wherein the disintegration time is 200 s.
Claims (6)
1. A calcium magnesium phosphate fertilizer disintegrating agent is characterized in that: 1-10 parts of urea, 1-10 parts of amide, 1-10 parts of polyvinyl alcohol, 1-10 parts of penetrating agent, 1-20 parts of disintegrating agent and 40-90 parts of water, wherein the penetrating agent and the disintegrating agent are added into a bonding material consisting of the urea, the amide, the polyvinyl alcohol and the water and are dissolved and mixed uniformly to form the disintegrating agent with bonding granulation function and disintegrating function.
2. The calcium-magnesia phosphate fertilizer disintegrant according to claim 1, which is characterized in that: the amide is one or a mixture of two of polyacrylamide and caprolactam.
3. The calcium-magnesia phosphate fertilizer disintegrant according to claim 1, which is characterized in that: the penetrant is one or a mixture of two or more of sulfated castor oil, sodium alkyl sulfonate, sodium alkyl benzene sulfonate, sodium alkyl sulfate, secondary alkyl sodium sulfonate, secondary alkyl sodium sulfate, alpha-alkenyl sodium sulfonate, alkyl naphthalene sodium sulfonate, succinic acid alkyl ester sodium sulfonate, sodium aminosulfonate, fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene ether and polyether.
4. The calcium-magnesia phosphate fertilizer disintegrant according to claim 1, which is characterized in that: the disintegrating agent is one or a mixture of two or more of starch, gelatinized starch and dextrin.
5. The use of a calcium-magnesia phosphate fertilizer disintegrant as claimed in any one of claims 1 to 4, wherein: when the calcium magnesium phosphate fertilizer is produced by granulation, a disintegrating agent is added in a liquid phase manner in the granulation process, and the using amount of the disintegrating agent is 1-20% of the mass of the calcium magnesium phosphate fertilizer; the granules are dried to form round granules of calcium magnesium phosphate fertilizer granules with certain strength, and the granules are quickly disintegrated after being put into water.
6. The use of a calcium magnesium phosphate fertilizer disintegrant according to claim 5, wherein: the disintegration time of the prepared round particle calcium magnesium phosphate fertilizer is less than or equal to 5 min.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110439540.XA CN113200779A (en) | 2021-04-23 | 2021-04-23 | Calcium magnesium phosphate fertilizer disintegrating agent and application thereof |
| PCT/CN2021/119221 WO2022222354A1 (en) | 2021-04-23 | 2021-09-18 | Calcium magnesium phosphate fertilizer disintegrating agent and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110439540.XA CN113200779A (en) | 2021-04-23 | 2021-04-23 | Calcium magnesium phosphate fertilizer disintegrating agent and application thereof |
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| Publication Number | Publication Date |
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| CN113200779A true CN113200779A (en) | 2021-08-03 |
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| CN202110439540.XA Withdrawn CN113200779A (en) | 2021-04-23 | 2021-04-23 | Calcium magnesium phosphate fertilizer disintegrating agent and application thereof |
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| Country | Link |
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| CN (1) | CN113200779A (en) |
| WO (1) | WO2022222354A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113717004A (en) * | 2021-09-23 | 2021-11-30 | 湖北富邦科技股份有限公司 | Drying-free production method of silicate-containing sandy fertilizer |
| WO2022222354A1 (en) * | 2021-04-23 | 2022-10-27 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer disintegrating agent and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475420A (en) * | 2009-01-23 | 2009-07-08 | 深圳市朗钛生物科技有限公司 | Fertilizer water-dispersion granule and preparation thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104140314A (en) * | 2013-05-10 | 2014-11-12 | 安世杰 | Water-dispersible expanded hollow granule containing single element fertilizer, and preparation technology thereof |
| CN104177196A (en) * | 2014-07-07 | 2014-12-03 | 广西三晶化工科技有限公司 | Compound pesticide fertilizer |
| AU2016207759B2 (en) * | 2015-01-13 | 2019-05-16 | Agresearch Limited | Agricultural composition |
| CN106220338B (en) * | 2016-07-22 | 2019-11-12 | 天津水泥工业设计研究院有限公司 | It is a kind of for producing the granulation disintegrating agent of rounded grain mineral fertilizer |
| CN110803959A (en) * | 2019-11-29 | 2020-02-18 | 烟台市烟农富邦肥料科技有限公司 | Special granulating agent for producing round granular calcium magnesium phosphate fertilizer and application thereof |
| CN113200779A (en) * | 2021-04-23 | 2021-08-03 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer disintegrating agent and application thereof |
-
2021
- 2021-04-23 CN CN202110439540.XA patent/CN113200779A/en not_active Withdrawn
- 2021-09-18 WO PCT/CN2021/119221 patent/WO2022222354A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475420A (en) * | 2009-01-23 | 2009-07-08 | 深圳市朗钛生物科技有限公司 | Fertilizer water-dispersion granule and preparation thereof |
Non-Patent Citations (1)
| Title |
|---|
| 江善襄: "《磷酸、磷肥和复混肥料》", 31 March 1999, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022222354A1 (en) * | 2021-04-23 | 2022-10-27 | 湖北富邦科技股份有限公司 | Calcium magnesium phosphate fertilizer disintegrating agent and application thereof |
| CN113717004A (en) * | 2021-09-23 | 2021-11-30 | 湖北富邦科技股份有限公司 | Drying-free production method of silicate-containing sandy fertilizer |
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| Publication number | Publication date |
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| WO2022222354A1 (en) | 2022-10-27 |
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Application publication date: 20210803 |