CN105646036A - Method for producing multi-element water-soluble fertilizer - Google Patents
Method for producing multi-element water-soluble fertilizer Download PDFInfo
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- CN105646036A CN105646036A CN201511026944.7A CN201511026944A CN105646036A CN 105646036 A CN105646036 A CN 105646036A CN 201511026944 A CN201511026944 A CN 201511026944A CN 105646036 A CN105646036 A CN 105646036A
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- water soluble
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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Abstract
The invention discloses a method for producing a multi-element water-soluble fertilizer. The method comprises the steps: (1) preparing raw materials required for production, including two or more of a nitrogen source, a phosphorus source, and a potassium source; (2) allowing the raw materials to be dissolved in a predetermined weight of water, allowing the raw material solution to reach a saturation state at a predetermined temperature, and filtering insolubles off to obtain a mother liquor; (3) heating the mother liquor, and adding the raw materials to the mother liquor so that the raw materials are fully dissolved; (4) cooling the solution prepared from step (3) to a predetermined temperature, and producing crystals in the system; (5) separating and drying the crystals to obtain a multi-element water-soluble fertilizer product. The water-soluble fertilizer product prepared by the method for producing the multi-element water-soluble fertilizer has homogeneous nutrients of crystals and difficulty in hardening of the crystals, and the method has the advantages of short technological process, simplicity and convenience in control, low cost and easy achievement of industrialization.
Description
Technical field
The present invention relates to field of fertilizer production, in particular to a kind of method producing multielement Water soluble fertilizer.
Background technology
Along with China's urbanization, scale of agricultural productionization advance, liquid manure one body technique uses in a large number. Powdery multielement Water soluble fertilizer advantage manifests gradually.
At present, the multielement water-soluble fertilizer mode of production is generally hybrid system: adopts various N P and K water-soluble fertilizer raw material, directly mixes by demand percentage, packaging. This kind of mode of production advantage is that the mixing of various nutrient raw material can be added by arbitrary proportion, and technique is simple, low processing cost. But between various raw material after mixing, there is follow-up reaction, very easily occur seriously hardening. In addition, various raw material granularity differs, and production, the easy layering of transporting procedures cause nutritional quality to decline. During production, workshop condition is poor. And, product appearance is not good.
The information being disclosed in this background section only is intended to increase the understanding of the general background to the present invention, and should not be regarded as admitting or imply that this information structure has been prior art that persons skilled in the art are known in any form.
Summary of the invention
It is an object of the invention to provide a kind of method producing multielement Water soluble fertilizer, thus part takes the shortcoming that the easy layering of existing Water soluble fertilizer causes nutritional quality to decline.
For achieving the above object, the present invention provides a kind of method producing multielement Water soluble fertilizer, comprises the following steps:
(1) prepare the raw material needed for production, comprise two or more in nitrogenous source, phosphorus source, potassium source;
By material dissolution in predetermined weight water, at a predetermined temperature, (2) material solution is reached capacity state, filters out insolubles, obtain mother liquor;
(3) mother liquor is heated, in mother liquor, add described raw material, raw material is fully dissolved;
(4) solution that described step (3) is obtained is cooled to preset temperature, in system, produces crystallization;
(5) crystal is separated, dry, obtain multielement Water soluble fertilizer product.
Preferably, in technique scheme, it may also be useful to the mother liquor that described step (2) obtains, the described step that circulates (3), to described step (5), capable of circulation prepares multielement Water soluble fertilizer product.
Preferably, in technique scheme, the raw material of described step (1) comprises middle micro element fertilizer and/or additive, and described additive comprises one or more in sequestrant, mineral acid, organic acid, methyl alcohol, ethanol, ethylene glycol, glycerol, formaldehyde, acetaldehyde.
Preferably, in technique scheme, described sequestrant comprises one or more in Amino Trimethylene Phosphonic Acid salt, ethylene diamine tetra methylene phosphonic acid salt, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt, diethylene triamine pentamethylene phosphonic salt, polyacrylate, the big acetate of quadrol two salicyl, tri-polyphosphate, Citrate trianion, gluconate, tartrate, diethylamide tetraacetate, polyaspartic acid salts, maleic acid-acrylic acid copolymer, diethylene triamine pentacetic acid (DTPA) salt; Described mineral acid comprises in phosphoric acid, sulfuric acid, nitric acid, hydrochloric acid, ureasulfuric acid, Ureaphil one or more; Described organic acid comprises one or more in gluconic acid, citric acid, lactic acid, oxysuccinic acid, tartrate, amino acid.
Preferably, in technique scheme, described nitrogenous source comprises in urea, ammonium sulfate, ammonium nitrate, calcium ammonium nitrate, nitrocalcite, ammonium nitrate phosphorus, nitric acid phosphorus one or more; Described phosphorus source comprises one or more in primary ammonium phosphate, Secondary ammonium phosphate, potassium primary phosphate, dipotassium hydrogen phosphate, primary magnesium phosphate, polyphosphoric acid magnesium, ammonium polyphosphate, Rapisol; Described potassium source comprises one or more in potassium sulfate, saltpetre, Repone K.
Preferably, in technique scheme, described nitrogenous source comprises one or more the slip in urea, ammonium sulfate, ammonium nitrate, calcium ammonium nitrate, nitrocalcite, ammonium nitrate phosphorus, nitric acid phosphorus or solution; Described phosphorus source comprises one or more the slip in primary ammonium phosphate, Secondary ammonium phosphate, potassium primary phosphate, dipotassium hydrogen phosphate, primary magnesium phosphate, polyphosphoric acid magnesium, ammonium polyphosphate, Rapisol or solution; Described potassium source comprises one or more the slip in potassium sulfate, saltpetre, Repone K or solution.
Preferably, in technique scheme, the preset temperature in described step (2) is-20-140 DEG C.
Preferably, in technique scheme, it is add water described step (4) in the solution that described step (3) is obtained, make moisture in solution reach the amount of predetermined weight water, and be cooled to preset temperature, in system, produces crystallization.
Preferably, in technique scheme, in described step (4) after crystallize out, add water and fertilizer in remaining mother liquor, make moisture in mother liquor reach the amount of predetermined weight water, mother liquor is reached capacity state, to enter next production cycle.
The present invention produces the principle of multielement Water soluble fertilizer method:
Under steady pressure, a temperature hierarchy, after the ionic system that multiple salt saturated solution is formed, intensification or cooling, then arrive design temperature, each salt steady dissolution. And when increase wherein one or more salt time, heat up or cool to design temperature, disengage this increase salt crystalloid or composite crystal, crystal weight, element are identical with increase salt veriety.
Compared with prior art, the present invention has following useful effect: the present invention produces the method for multielement Water soluble fertilizer, by the mixing between liquid, between solid, between solids liq, crystallisation process, various material solution or slip is particularly adopted directly to produce by the present invention, can the molten fertilizer of low cost production polywater. The Water soluble fertilizer product prepared, xln nutrient homogeneous, not easily hardens, and the method technical process is short, it is simple and convenient to manipulate, low cost, easily realize industrialization.
Embodiment
Below in conjunction with specific embodiment, the specific embodiment of the present invention is described in detail, it should be understood that protection scope of the present invention is not by the restriction of embodiment.
Embodiment 1
Produce a method for multielement Water soluble fertilizer, production formula 20.8-12.2-18.2 (N-P-K), adopt urea, primary ammonium phosphate, potassium sulfate, magnesium sulfate as raw material. Being equivalent to each raw material weight ratio is: 40 parts, urea, primary ammonium phosphate 20 parts, potassium sulfate 35 parts, 5 parts, magnesium sulfate.
Step one, first employing 40 parts, urea, primary ammonium phosphate 20 parts, potassium sulfate 35 parts, 5 parts, magnesium sulfate are dissolved in 100 parts of water beakers and form saturated solution, and preset temperature 30 degree, filters out insolubles, forms mother liquor;
Step 2, above-mentioned mother liquor is heated to 60 degree;
Step 3, by demand formula rate, 40 parts, urea, primary ammonium phosphate 20 parts, potassium sulfate 35 parts, 5 parts, magnesium sulfate, the mother liquor after temperature raises adds above-mentioned demand raw material 10 parts, all raw materials is fully dissolved, forms solution;
Step 4, the solution described step (4) obtained, cool to 30 degree, produces crystallization in system;
Step 5, by above-mentioned crystal separation, dry, obtain crystal multielement water-soluble fertilizer 10 parts of products of demand formula 20.8-12.2-18.2.
Embodiment 2
Production formula 17.0-12.2-18.2 (N-P-K), adopts ammonium nitrate, primary ammonium phosphate, potassium sulfate, ammonium sulfate as raw material. Being equivalent to each raw material weight ratio is: the primary ammonium phosphate of 40 parts, ammonium nitrate, water content 50% 40 parts, potassium sulfate 35 parts, 5 parts, ammonium sulfate.
Step one, first employing 40 parts, ammonium nitrate, the primary ammonium phosphate 40 parts of water content 50%, potassium sulfate 35 parts, 5 parts, ammonium sulfate, be dissolved in 100 parts of water beakers and form saturated solution, and preset temperature 20 degree, filters out insolubles, forms mother liquor;
Step 2, above-mentioned mother liquor is heated to 80 degree;
Step 3, by demand formula rate, 40 parts, ammonium nitrate, water content 50% primary ammonium phosphate 40 parts, potassium sulfate 35 parts, 5 parts, ammonium sulfate, the mother liquor after temperature raises adds above-mentioned demand raw material 12 parts, all raw materials is fully dissolved, forms pyrosol;
Step 4, by above-mentioned pyrosol, because heating evaporation falls 2 parts of moisture, 2 parts of water need to be supplemented, water content be stablized, is 100 parts, then cools to 20 degree, in system, produce crystallization;
Step 5, by above-mentioned crystal separation, dry, obtain crystal multielement water-soluble fertilizer 10 parts of products of demand formula 17.0-12.2-18.2.
The aforementioned description to the concrete exemplary of the present invention is to illustrate and the object of illustration. These descriptions not want to be defined as the present invention disclosed precise forms, and obviously, according to above-mentioned instruction, it is possible to carry out much changing and change. The object exemplary embodiment selected and describe is to explain the certain principles of the present invention and practical application thereof, so that the technician of this area can realize and utilize the various different exemplary of the present invention and various different selection and change. The scope of the present invention is intended to be limited by claim book and equivalents thereof.
Claims (9)
1. produce the method for multielement Water soluble fertilizer for one kind, it is characterised in that, comprise the following steps:
(1) prepare the raw material needed for production, comprise two or more in nitrogenous source, phosphorus source, potassium source;
By material dissolution in predetermined weight water, at a predetermined temperature, (2) material solution is reached capacity state, filters out insolubles, obtain mother liquor;
(3) mother liquor is heated, in mother liquor, add described raw material, raw material is fully dissolved;
(4) solution that described step (3) is obtained is cooled to preset temperature, in system, produces crystallization;
(5) crystal is separated, dry, obtain multielement Water soluble fertilizer product.
2. the method for production multielement Water soluble fertilizer according to claim 1, it is characterized in that, the mother liquor using described step (2) to obtain, the described step that circulates (3), to described step (5), capable of circulation prepares multielement Water soluble fertilizer product.
3. the method for production multielement Water soluble fertilizer according to claim 1, it is characterized in that, the raw material of described step (1) comprises middle micro element fertilizer and/or additive, and described additive comprises one or more in sequestrant, mineral acid, organic acid, methyl alcohol, ethanol, ethylene glycol, glycerol, formaldehyde, acetaldehyde.
4. the method for production multielement Water soluble fertilizer according to claim 3, it is characterized in that, described sequestrant comprises one or more in Amino Trimethylene Phosphonic Acid salt, ethylene diamine tetra methylene phosphonic acid salt, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid salt, diethylene triamine pentamethylene phosphonic salt, polyacrylate, the big acetate of quadrol two salicyl, tri-polyphosphate, Citrate trianion, gluconate, tartrate, diethylamide tetraacetate, polyaspartic acid salts, maleic acid-acrylic acid copolymer, diethylene triamine pentacetic acid (DTPA) salt; Described mineral acid comprises one or more in phosphoric acid, sulfuric acid, nitric acid, hydrochloric acid, ureasulfuric acid, Ureaphil; Described organic acid comprises one or more in gluconic acid, citric acid, lactic acid, oxysuccinic acid, tartrate, amino acid.
5. the method for production multielement Water soluble fertilizer according to claim 1, it is characterised in that, described nitrogenous source comprises in urea, ammonium sulfate, ammonium nitrate, calcium ammonium nitrate, nitrocalcite, ammonium nitrate phosphorus, nitric acid phosphorus one or more; Described phosphorus source comprises one or more in primary ammonium phosphate, Secondary ammonium phosphate, potassium primary phosphate, dipotassium hydrogen phosphate, primary magnesium phosphate, polyphosphoric acid magnesium, ammonium polyphosphate, Rapisol; Described potassium source comprises one or more in potassium sulfate, saltpetre, Repone K.
6. produce the method for multielement Water soluble fertilizer according to claim 1 or 5, it is characterised in that, described nitrogenous source comprises one or more the slip in urea, ammonium sulfate, ammonium nitrate, calcium ammonium nitrate, nitrocalcite, ammonium nitrate phosphorus, nitric acid phosphorus or solution; Described phosphorus source comprises one or more the slip in primary ammonium phosphate, Secondary ammonium phosphate, potassium primary phosphate, dipotassium hydrogen phosphate, primary magnesium phosphate, polyphosphoric acid magnesium, ammonium polyphosphate, Rapisol or solution; Described potassium source comprises one or more the slip in potassium sulfate, saltpetre, Repone K or solution.
7. the method for production multielement Water soluble fertilizer according to claim 1, it is characterised in that, the preset temperature in described step (2) is-20-140 DEG C.
8. the method for production multielement Water soluble fertilizer according to claim 1, it is characterized in that, by described step (4) it is, add water in the solution that described step (3) is obtained, moisture in solution is made to reach the amount of predetermined weight water, and it is cooled to preset temperature, produce crystallization in system.
9. the method for production multielement Water soluble fertilizer according to claim 1, it is characterized in that, in described step (4) after crystallize out, add water and fertilizer in remaining mother liquor, moisture in mother liquor is made to reach the amount of predetermined weight water, mother liquor is reached capacity state, to enter next production cycle.
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| CN201511026944.7A CN105646036A (en) | 2015-12-31 | 2015-12-31 | Method for producing multi-element water-soluble fertilizer |
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| CN201511026944.7A CN105646036A (en) | 2015-12-31 | 2015-12-31 | Method for producing multi-element water-soluble fertilizer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187381A (en) * | 2016-07-14 | 2016-12-07 | 赖亚从 | A kind of Fructus Cucumidis sativi compound foliar fertilizer special |
| CN106478188A (en) * | 2016-11-02 | 2017-03-08 | 王兵 | A kind of preparation method of the compound fertilizer rich in n-p-k element |
| CN106631578A (en) * | 2016-12-08 | 2017-05-10 | 深圳市芭田生态工程股份有限公司 | Humic acid composite fertilizer and preparation method thereof |
| CN107445723A (en) * | 2017-09-21 | 2017-12-08 | 阿米巴南京生物技术有限责任公司 | A kind of preparation method of the compound water-soluble fertilizer of multielement |
| CN107963929A (en) * | 2017-12-05 | 2018-04-27 | 上海永通化工有限公司 | A kind of plant nutrient crystalline solid and preparation method thereof |
| CN108503488A (en) * | 2018-05-04 | 2018-09-07 | 山东粮源生物有机肥有限公司 | A kind of efficient liquid bio-organic fertilizer and preparation method thereof using edible fungi residues production |
| CN109422549A (en) * | 2017-08-29 | 2019-03-05 | 贵州芭田生态工程有限公司 | Calcium ammonium nitrate particle preparation system and preparation method |
| CN110723991A (en) * | 2019-12-04 | 2020-01-24 | 新疆丰泰化工科技有限公司 | Crystal zinc sulfate magnesium fertilizer and production method thereof |
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| JP2000119082A (en) * | 1998-10-14 | 2000-04-25 | Denki Kagaku Kogyo Kk | Inorganic composition for fertilizer and soil conditioner |
| CN102633551A (en) * | 2012-04-23 | 2012-08-15 | 马光明 | Method for producing water soluble fertilizer with major element by using agriculture fertilizer |
| CN102701824A (en) * | 2012-06-12 | 2012-10-03 | 中化化肥有限公司重庆磷复肥工程技术研究中心 | Production method for macro-element water-soluble fertilizer |
| CN104710242A (en) * | 2015-03-23 | 2015-06-17 | 随州丰瑞生物科技有限公司 | Production technique for producing paste water-soluble fertilizer by energy-saving liquid-phase process and product thereof |
| CN105110892A (en) * | 2015-07-31 | 2015-12-02 | 深圳市芭田生态工程股份有限公司 | Macroelement water soluble fertilizer and preparation method therefor |
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2015
- 2015-12-31 CN CN201511026944.7A patent/CN105646036A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000119082A (en) * | 1998-10-14 | 2000-04-25 | Denki Kagaku Kogyo Kk | Inorganic composition for fertilizer and soil conditioner |
| CN102633551A (en) * | 2012-04-23 | 2012-08-15 | 马光明 | Method for producing water soluble fertilizer with major element by using agriculture fertilizer |
| CN102701824A (en) * | 2012-06-12 | 2012-10-03 | 中化化肥有限公司重庆磷复肥工程技术研究中心 | Production method for macro-element water-soluble fertilizer |
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| CN105110892A (en) * | 2015-07-31 | 2015-12-02 | 深圳市芭田生态工程股份有限公司 | Macroelement water soluble fertilizer and preparation method therefor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106187381A (en) * | 2016-07-14 | 2016-12-07 | 赖亚从 | A kind of Fructus Cucumidis sativi compound foliar fertilizer special |
| CN106478188A (en) * | 2016-11-02 | 2017-03-08 | 王兵 | A kind of preparation method of the compound fertilizer rich in n-p-k element |
| CN106631578A (en) * | 2016-12-08 | 2017-05-10 | 深圳市芭田生态工程股份有限公司 | Humic acid composite fertilizer and preparation method thereof |
| CN109422549A (en) * | 2017-08-29 | 2019-03-05 | 贵州芭田生态工程有限公司 | Calcium ammonium nitrate particle preparation system and preparation method |
| CN107445723A (en) * | 2017-09-21 | 2017-12-08 | 阿米巴南京生物技术有限责任公司 | A kind of preparation method of the compound water-soluble fertilizer of multielement |
| CN107963929A (en) * | 2017-12-05 | 2018-04-27 | 上海永通化工有限公司 | A kind of plant nutrient crystalline solid and preparation method thereof |
| CN108503488A (en) * | 2018-05-04 | 2018-09-07 | 山东粮源生物有机肥有限公司 | A kind of efficient liquid bio-organic fertilizer and preparation method thereof using edible fungi residues production |
| CN110723991A (en) * | 2019-12-04 | 2020-01-24 | 新疆丰泰化工科技有限公司 | Crystal zinc sulfate magnesium fertilizer and production method thereof |
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Application publication date: 20160608 |