CN113173819A - Potash fertilizer with strong water retention property - Google Patents
Potash fertilizer with strong water retention property Download PDFInfo
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- CN113173819A CN113173819A CN202110464678.5A CN202110464678A CN113173819A CN 113173819 A CN113173819 A CN 113173819A CN 202110464678 A CN202110464678 A CN 202110464678A CN 113173819 A CN113173819 A CN 113173819A
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- potash fertilizer
- water
- water retention
- fertilizer
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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
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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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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/02—Fertilisers containing other nitrates containing sodium or potassium nitrate
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/02—Manufacture from potassium chloride or sulfate or double or mixed salts thereof
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a potash fertilizer with strong water retention property, which is formed by combining a water retention agent, a binder and a potash fertilizer, and is characterized in that the potash fertilizer comprises the following components in percentage by weight: 1 to 20 percent of water-retaining agent, 0.1 to 5 percent of adhesive and 75 to 98.9 percent of potash fertilizer, and the preparation method comprises the following steps: after the water-retaining agent and the potash fertilizer are uniformly mixed, the mixture is granulated in a granulation roller, the binder is dissolved in water and then is sprayed in a mist shape to enable the powder mixed with the water-retaining agent and the potash fertilizer to be particles, and then the particles are dried, screened and packaged. The invention has the following advantages: the potash fertilizer with strong water retention performance can be produced in a large scale, can be reserved according to the needs of customers, can supplement water for crops in water-deficient areas, and provides a large amount of water resources for crops with large water demand.
Description
Technical Field
The invention relates to the technical field of novel fertilizers, in particular to a preparation method and application of a high-water-absorptivity potassium fertilizer.
Background
The rapid development of Chinese agriculture makes the improvement of world focus, the rapid growth in agriculture, the demand of Chinese agriculture for fertilizer is more and more diversified, the fertilizer used by different crops in different places or different crops is different, and the diversified fertilizer is a necessary trend along with the agricultural progress of China. Under the drive, the multifunctional fertilizer can ensure the needs of crops in different places, and the transformation completely accords with the development trend of environmental friendliness in China. In some drought and rainless places, the fertilizer with strong water retention property can store water in the rainy days and be absorbed by crops in the drought days, and the water retention type fertilizer can help the crops to grow well.
The water retention effect of the water retention type fertilizer disclosed in patent CN 109111308A and patent CN 108911844 a is not good, mainly by silica gel and calcium bentonite for water retention, but the water absorption performance of silica gel and calcium bentonite is not strong, and the usage amount of the fertilizer as medium trace element fertilizer is not very large, and the water retention capacity of the fertilizer is small for land and crops.
The water-retaining fertilizer described in patent CN107721599A mainly retains water of acrylamide, has strong moisture absorption performance, and when acrylamide is added into the fertilizer, the moisture absorption of the fertilizer is serious, if the moisture absorption is slight, the fertilizer is agglomerated, and when the moisture absorption is serious, the fertilizer is pulverized or even melted, so that the loss of enterprises is caused.
In patent CN106146156A, the operation method of the water-retaining fertilizer is complicated, the cost is too high for large-scale production and is not practical, the proportioning requirement is strict, and the water-retaining capacity of the produced hydrophilic material is limited.
The water-retaining fertilizer has great local significance for severe regional water shortage, can not only bring enough nutrients for crops in water shortage regions, but also supplement water for the water-deficient crops, has positive effects on soil hardening and crop absorption, and can ensure the supply of nutrients and water for the crops.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the potash fertilizer with strong water retention performance and the preparation method thereof.
In order to achieve the above-mentioned purpose, the following technical scheme is adopted,
the potash fertilizer with strong water retention performance is formed by combining a water retention agent, a binder and a potash fertilizer, and is characterized in that the potash fertilizer comprises the following components in percentage by weight: 1 to 20 percent of water-retaining agent, 0.1 to 5 percent of adhesive and 75 to 98.9 percent of potash fertilizer, and the preparation method comprises the following steps: after the water-retaining agent and the potash fertilizer are uniformly mixed, the mixture is granulated in a granulation roller, the binder is dissolved in water and then is sprayed in a mist shape to enable the powder mixed with the water-retaining agent and the potash fertilizer to be particles, and then the particles are dried, screened and packaged.
The water-retaining agent is one or a mixture of more than two of super absorbent resin, super magnesium carbonate and modified kaolin.
The binder is one or a mixture of more than two of urea, polyvinyl alcohol, polyacrylamide and modified starch.
The potash fertilizer is one or a mixture of more than two of potassium sulfate, potassium chloride, potassium carbonate, monopotassium phosphate and potassium nitrate.
The mass concentration of the aqueous solution of the binder is 1-20%.
The potash fertilizer with strong water retention property has the following advantages:
1. the product has stronger water retention performance for general water retention type fertilizers, and the modified super absorbent resin, super magnesium carbonate or modified kaolin has 50-100 times of water absorption capacity;
2. the fertilizer has the advantages that the fertilizer has large-batch production capacity, is more suitable for large-area fertilization of farmers, is more convenient and simpler to use, cannot cause the phenomenon that powdery dust rises and wastes fertilizer, and cannot cause mechanical jamming like extruding irregular fertilizer;
3. as a high-quality fertilizer, the product can provide enough nutrients for crops and can also provide corresponding moisture for the growth of the crops.
Detailed Description
The invention is further described in connection with the examples in which the starting materials are purchased directly, each in weight percent.
Example 1
(1) Respectively putting super magnesium carbonate and potassium sulfate into two bins, and putting the materials by controlling a weighing scale, wherein the super magnesium carbonate is Uppsa salt, the surface area of 1 g reaches 800 square meters, 5% of the super magnesium carbonate and 94.5% of the potassium sulfate are put into a ball mill for mixing and grinding for 30 min;
(2) conveying the mixed materials into a granulation roller through a belt, preparing urea solution with the mass concentration of 10% from 0.5% of urea, and spraying the urea solution onto the surface of the potassium sulfate fertilizer through a spray head to form potassium sulfate into particles;
(3) and (4) feeding the granulated potassium sulfate into a drying roller for drying, and screening and packaging after the fertilizer is dried.
100g of fertilizer is dried at 104 ℃, buried in one kilogram of soil for two hours, and the soil is dried at 180 ℃ for 2 hours and then added with 300ml of water.
As can be seen from the above table, the potassium sulfate with water retention performance prepared in example 1 of the present invention has water retention performance as high as 23.1 times that of common potassium sulfate.
Example 2
(1) Respectively putting super magnesium carbonate and potassium chloride into two bins, and putting the materials by controlling a weighing scale, wherein the super magnesium carbonate is Uppsa salt, the surface area of 1 g reaches 800 square meters, and the super magnesium carbonate and the potassium chloride reach 98.9 percent, and putting the super magnesium carbonate and the potassium chloride into a ball mill for mixing and grinding for 30 min;
(2) conveying the mixed materials into a granulation roller through a belt, preparing 0.1% modified starch into a modified starch solution with the mass concentration of 5%, and spraying the modified starch solution onto the surface of a potassium chloride fertilizer through a spray head to form potassium chloride into particles;
(3) and (4) sending the granulated potassium chloride into a drying roller for drying, and screening and packaging after the fertilizer is dried.
100g of fertilizer is dried at 104 ℃, buried in one kilogram of soil for two hours, and the soil is dried at 180 ℃ for 2 hours and then added with 300ml of water.
From the above table, it can be seen that the water retention property of potassium chloride prepared in example 2 of the present invention is as high as 18.9 times that of common potassium chloride.
Example 3
(1) Respectively putting the modified kaolin and the potassium chloride into two bins, putting the materials by controlling the weighing, wherein the modified kaolin and the potassium chloride are 8 percent and 90 percent, putting the materials into a ball mill according to the proportion of 0.8:9.2, and mixing and grinding for 20 min;
(2) conveying the mixed materials into a granulation roller through a belt, preparing polyvinyl alcohol solution with the mass concentration of 1% by using 2% of polyvinyl alcohol, and spraying the polyvinyl alcohol solution onto the surface of the potassium chloride fertilizer through a spray head to form potassium chloride into granules;
(3) and (4) sending the granulated potassium chloride into a drying roller for drying, and screening and packaging after the fertilizer is dried.
100g of fertilizer is dried at 104 ℃, buried in one kilogram of soil for two hours, and the soil is dried at 180 ℃ for 2 hours and then added with 300ml of water.
From the above table, it can be seen that the water retention property of potassium chloride prepared in example 3 of the present invention is as high as 3.9 times that of common potassium chloride.
Example 4
(1) Respectively putting the super absorbent resin and the potassium sulfate into two bins, and putting the materials by controlling the weighing, wherein the super absorbent resin accounts for 3 percent, and the potassium sulfate accounts for 92 percent, putting the materials into a ball mill, and mixing and grinding the materials for 10 min;
(2) conveying the mixed materials into a granulation roller through a belt, preparing urea solution with the mass concentration of 20% from 5% urea, and spraying the urea solution onto the surface of the potassium sulfate fertilizer through a spray head to form potassium sulfate into particles;
(3) and (4) feeding the granulated potassium sulfate into a drying roller for drying, and screening and packaging after the fertilizer is dried.
100g of fertilizer is dried at 104 ℃, buried in one kilogram of soil for two hours, and the soil is dried at 180 ℃ for 2 hours and then added with 300ml of water.
As can be seen from the above table, the potassium sulfate with water retention performance prepared in example 4 of the present invention has a water retention performance as high as 9.6 times that of common potassium sulfate.
Example 5
(1) Respectively putting the super absorbent resin and the potassium dihydrogen phosphate into two bins, and putting the materials by controlling the weighing scale, wherein the super absorbent resin accounts for 20 percent, and the potassium dihydrogen phosphate accounts for 75 percent, putting the materials into a ball mill, and mixing and grinding the materials for 30 min;
(2) conveying the mixed materials into a granulation roller through a belt, preparing 5% polyacrylamide into a polyacrylamide solution with the mass concentration of 10%, and spraying the polyacrylamide solution onto the surface of the potassium dihydrogen phosphate fertilizer through a spray head to form potassium dihydrogen phosphate into particles;
(3) and (3) feeding the granulated potassium dihydrogen phosphate into a drying roller for drying, and screening and packaging after the fertilizer is dried.
100g of fertilizer is dried at 104 ℃, buried in one kilogram of soil for two hours, and the soil is dried at 180 ℃ for 2 hours and then added with 300ml of water.
From the above table, it can be seen that the potassium dihydrogen phosphate with water retention performance prepared in example 5 of the present invention has water retention performance as high as 13 times that of common potassium dihydrogen phosphate.
Claims (5)
1. The potash fertilizer with strong water retention performance is formed by combining a water retention agent, a binder and a potash fertilizer, and is characterized in that the potash fertilizer comprises the following components in percentage by weight: 1 to 20 percent of water-retaining agent, 0.1 to 5 percent of adhesive and 75 to 98.9 percent of potash fertilizer, and the preparation method comprises the following steps: after the water-retaining agent and the potash fertilizer are uniformly mixed, the mixture is granulated in a granulation roller, the binder is dissolved in water and then is sprayed in a mist shape to enable the powder mixed with the water-retaining agent and the potash fertilizer to be particles, and then the particles are dried, screened and packaged.
2. The potash fertilizer with strong water retention property as claimed in claim 1, wherein: the water-retaining agent is one or a mixture of more than two of super absorbent resin, super magnesium carbonate and modified kaolin.
3. The potash fertilizer with strong water retention property as claimed in claim 1, wherein: the binder is one or a mixture of more than two of urea, polyvinyl alcohol, polyacrylamide and modified starch.
4. The potash fertilizer with strong water retention property as claimed in claim 1, wherein: the potash fertilizer is one or a mixture of more than two of potassium sulfate, potassium chloride, potassium carbonate, monopotassium phosphate and potassium nitrate.
5. The potash fertilizer with strong water retention property as claimed in claim 1, wherein: the mass concentration of the aqueous solution of the binder is 1-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464678.5A CN113173819A (en) | 2021-04-23 | 2021-04-23 | Potash fertilizer with strong water retention property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464678.5A CN113173819A (en) | 2021-04-23 | 2021-04-23 | Potash fertilizer with strong water retention property |
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| Publication Number | Publication Date |
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| CN113173819A true CN113173819A (en) | 2021-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110464678.5A Withdrawn CN113173819A (en) | 2021-04-23 | 2021-04-23 | Potash fertilizer with strong water retention property |
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| Country | Link |
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| CN (1) | CN113173819A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043686A (en) * | 2022-06-06 | 2022-09-13 | 青海国润农业科技有限公司 | Regular round granular potash fertilizer granulation auxiliary agent and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361090A (en) * | 2000-12-29 | 2002-07-31 | 广东工业大学 | Drought-resisting water-maintaining multifunctional compoiste fertilizer and its production process |
| CN101462910A (en) * | 2007-12-17 | 2009-06-24 | 吕国华 | Composite humectant |
| CN104710213A (en) * | 2014-12-31 | 2015-06-17 | 北方华锦化学工业集团有限公司 | Rounded grain potash fertilizer production method |
| CN104761387A (en) * | 2015-04-13 | 2015-07-08 | 中国热带农业科学院橡胶研究所 | Water-retaining and slowly-release compound fertilizer and preparation method thereof |
| CN106083378A (en) * | 2016-06-22 | 2016-11-09 | 沈阳农业大学 | A kind of fertilizers improving Soil structure and preparation method thereof |
| CN106278609A (en) * | 2016-08-15 | 2017-01-04 | 湖北富邦科技股份有限公司 | A kind of low concentration Multi-functional circular granular potash fertilizer and preparation method |
| CN108929148A (en) * | 2017-05-27 | 2018-12-04 | 山东红日化工股份有限公司 | A kind of drought-resistant water-preserving fertilizer and preparation method thereof |
| CN110734337A (en) * | 2019-11-27 | 2020-01-31 | 湖北富邦科技股份有限公司 | high-water-absorption medium-trace element mixing agent and application thereof |
-
2021
- 2021-04-23 CN CN202110464678.5A patent/CN113173819A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361090A (en) * | 2000-12-29 | 2002-07-31 | 广东工业大学 | Drought-resisting water-maintaining multifunctional compoiste fertilizer and its production process |
| CN101462910A (en) * | 2007-12-17 | 2009-06-24 | 吕国华 | Composite humectant |
| CN104710213A (en) * | 2014-12-31 | 2015-06-17 | 北方华锦化学工业集团有限公司 | Rounded grain potash fertilizer production method |
| CN104761387A (en) * | 2015-04-13 | 2015-07-08 | 中国热带农业科学院橡胶研究所 | Water-retaining and slowly-release compound fertilizer and preparation method thereof |
| CN106083378A (en) * | 2016-06-22 | 2016-11-09 | 沈阳农业大学 | A kind of fertilizers improving Soil structure and preparation method thereof |
| CN106278609A (en) * | 2016-08-15 | 2017-01-04 | 湖北富邦科技股份有限公司 | A kind of low concentration Multi-functional circular granular potash fertilizer and preparation method |
| CN108929148A (en) * | 2017-05-27 | 2018-12-04 | 山东红日化工股份有限公司 | A kind of drought-resistant water-preserving fertilizer and preparation method thereof |
| CN110734337A (en) * | 2019-11-27 | 2020-01-31 | 湖北富邦科技股份有限公司 | high-water-absorption medium-trace element mixing agent and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115043686A (en) * | 2022-06-06 | 2022-09-13 | 青海国润农业科技有限公司 | Regular round granular potash fertilizer granulation auxiliary agent and preparation method thereof |
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Application publication date: 20210727 |
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