CN1715257A - Dry powder type organic compound fertilizer pelletizing adhesive and its preparing method - Google Patents
Dry powder type organic compound fertilizer pelletizing adhesive and its preparing method Download PDFInfo
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- CN1715257A CN1715257A CN 200510084248 CN200510084248A CN1715257A CN 1715257 A CN1715257 A CN 1715257A CN 200510084248 CN200510084248 CN 200510084248 CN 200510084248 A CN200510084248 A CN 200510084248A CN 1715257 A CN1715257 A CN 1715257A
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Abstract
The present invention provides a dry powder type adhesive for pelletizing organic compound fertilizer and its preparation process. The adhesive has material comprising starch 100-200 weight portions, hydrogen peroxide solution 2-6 weight portions, strong alkali 6-12 weight portions, iron salt 1-3 weight portions, borax 4-10 weight portions, urea 2-6 weight portions and sodium silicate 4-6 weight portions. The preparation process includes the following steps: preparing materials; spraying strong alkali solution into starch and stirring; spraying hydrogen peroxide solution and iron salt solution to the mixture and adding borax to the mixture; spraying urea and sodium silicate to the mixture while stirring; reacting the mixture at 60-80 deg c in stove for 1.5-2.5 hr and stoving at 100-110 deg.c; crushing the mixture and 60-100 mesh sieving to obtain the dry powder type adhesive.
Description
Technical field
The present invention relates to a kind of dry powder type binding agent and preparation method thereof, particularly relate to a kind of dry powder type binding agent that is used for organic compound fertilizer pelletizing and preparation method thereof.
Background technology
Production of compound fertilizer is the important symbol of chemical fertilizer industry technical progress, also is one of requisite measure that realizes agricultural modernization.The greatest problem of producing mixed organic manure is granulation, has only granular fertilizer just to be beneficial to mechanized application, but if wants to cause the essential binding agent that adds of round shaped grain shape.The binding agent that in the past was used for organic compound fertilizer pelletizing mainly is that the superpolymer with inorganic clay mineral or organic synthesis is a raw material, and the former can't produce oxygen and divide content high granule type mixed organic manure because addition is big as adhesive for granulating, and returning charge rate height.Higher and the difficult degraded of latter's cost is easy in edatope residually, and plant growth is had a negative impact.Therefore, press for a kind of novel organic compound fertilizer pelletizing adhesive, to remedy the deficiency of above-mentioned binding agent.
Summary of the invention
The purpose of this invention is to provide a kind of dry powder type binding agent that is used for organic compound fertilizer pelletizing.
Dry powder type organic compound fertilizer pelletizing adhesive provided by the present invention, its raw material are the materials of following portions by weight ratio:
Starch (crossing 100 orders) 100-200
Hydrogen peroxide (30%) 2-6
Highly basic (purity 〉=96%) 6-12
Molysite (purity 〉=90%) 1-3
Borax (purity 〉=98%) 4-10
Urea (purity 〉=95%) 2-6
Water glass (purity 〉=98%) 4-6.
Preferred dry powder type organic compound fertilizer pelletizing adhesive, its raw material is the material of following portions by weight ratio:
Starch (crossing 100 orders) 120
Hydrogen peroxide (30%) 4
Highly basic (purity 〉=96%) 6
Molysite (purity 〉=90%) 1.5
Borax (purity 〉=98%) 6
Urea (purity 〉=95%) 3
Water glass (purity 〉=98%) 5.
Described highly basic can be any one or a few in the highly basic such as sodium hydroxide, potassium hydroxide, sodium oxide, potassium oxide and ammonium hydroxide; Described molysite can be any one or a few in ferrous sulfate, ferric sulfate, iron protochloride and the iron(ic) chloride.
Second purpose of the present invention provides a kind of preparation method of above-mentioned dry powder type organic compound fertilizer pelletizing adhesive.
Preparation method provided by the present invention may further comprise the steps:
1) gets the raw materials ready: get the starch that ratio of weight and number is 100-200: 2-6: 6-12: 1-3: 4-10: 2-6: 4-6 (crossing 100 orders), hydrogen peroxide (30%), highly basic (purity 〉=96%), molysite (purity 〉=90%), borax (purity 〉=98%), urea (purity 〉=95%) and water glass (purity 〉=98%).Except that borax, with the water-soluble wiring solution-forming of solid matter.
2) the strong base solution spray is added in the starch, uniform mixing, mixing process constantly stirs;
3) with hydrogen peroxide evenly spray be added to step 2) mixture in, iron salt solutions is also sprayed be added in the mixture then, borax is sneaked into stir again;
4) mixture of step 3) is stirred after, the mixed solution and sprayed of urea and water glass is added in the mixture, adition process constantly stirs;
5) mixture with the step 4) gained places 60-80 ℃ of baking oven to react 1.5-2.5h, is warming up to 100-110 ℃ of oven dry then;
6) after the mixture pulverizing with the step 5) gained, behind the 60-100 mesh sieve, obtain dry powder type organic compound fertilizer pelletizing adhesive excessively.
In above-mentioned preparation method, the preferred ratio of weight and number of starch, hydrogen peroxide, highly basic, molysite, borax, urea and water glass is 120: 4: 6: 1.5: 6: 3: 5.
Be sufficient reacting,, add in the mode of spraying again highly basic, molysite, urea and water glass first wiring solution-forming before interpolation.
Step 2) concentration of strong base solution is 35%-45% in, is preferably 40%, and its spray adds process and preferably is controlled in 2-3 minute and finishes; Described highly basic can be any one or a few in the highly basic such as sodium hydroxide, potassium hydroxide, sodium oxide, potassium oxide and ammonium hydroxide.
The concentration of molysite is 15%-25% in the step 3), is preferably 20%, and described molysite can be any one or a few in ferrous sulfate, ferric sulfate, iron protochloride and the iron(ic) chloride; Borax is sneaked into after crossing 60 mesh sieves or being made into the solution that concentration is 18%-23% again, and the concentration of described borax soln is preferably 20%.
The concentration of urea is 35%-45% in the step 4), is preferably 40%, and the concentration of sodium silicate solution is 25%-35%, is preferably 30%.
Temperature of reaction in the step 5) is preferably 80 ℃, and the reaction times is preferably 2.0h, and bake out temperature is preferably 105 ℃.
The diameter of sieve aperture is preferably 80 orders in the step 6).
The physico-chemical property of dry powder type organic compound fertilizer pelletizing adhesive of the present invention is:
1) color and luster and form: light yellow solid powder;
2) 20% viscosity in aqueous solution: 98.3mPas (rotational viscosimeter, 25 ℃);
3) pH value (binding agent: water=1: 10 (ratio of weight and number)): 9.4;
4) storage period: greater than 6 months;
5) the average anti-crushing power of mixed organic manure particle: greater than 13N;
6) organic compound fertilizer pelletizing returning charge rate: be lower than 4.65%;
7) the mixed organic manure particle diameter is the granule content of 1-6mm: greater than 90%.
8) the shared material's proportion of binding agent: 0.8%-1.5%
Above-mentioned percentage concentration is mass percentage concentration.
The present invention utilizes natural starch to be major ingredient, and the granulation matrix material that utilizes the chemical industry means that its mixed organic manure granulating of carrying out obtaining after the modification is produced can be widely used in pellet granulation and the extruder granulation.That organic compound fertilizer pelletizing adhesive of the present invention has is nontoxic, harmless, pollution-free, easily degraded and advantage such as soluble in water, be applicable to that production N, P, K effective content are more than 30%, the rounded grain mixed organic manure of organic content more than 50% also is applicable to the granulation of high density organic-inorganic compound mixed fertilizer (N, P, K available nutrient 〉=35%).It is few that this binding agent also has a consumption, biodegradable, the non-environmental-pollution risk is convenient to storage and transportation, and can be simplified granulating process, advantages such as balling-up is effective, the returning charge rate is low, both can improve the total nutrient content of fertilizer, and make fertilizer meet or exceed the standard of compound fertilizer, simultaneously that crop is essential nutritive element is through transforming the component of back as binding agent, can have additional nutrients the like this validity of element also can be simplified the production technique of compounded fertilizer of granulated; Binding agent of the present invention is a dry powder type; addition manner is flexible; when granulation, can it is water-soluble, use with spray pattern; also can adopt the mode of direct blending; promptly while and material are sneaked into together, go back sectional formula ground and add, and therefore are applicable to rotary drum granulator and granulating disc granulation or extruder grain; prilling process is simple, is applicable to suitability for industrialized production.
Embodiment
Method therefor is ordinary method if no special instructions among the following embodiment.
The preparation of 1,1 ton of dry powder type organic compound fertilizer pelletizing adhesive of embodiment
It is 100: 4: 6 that the organic compound fertilizer pelletizing adhesive of present embodiment includes the weight fraction ratio: 1: 4: 4: 5 starch, hydrogen peroxide, sodium hydroxide, ferrous sulfate, borax, urea and water glass.Concrete preparation process comprises the steps:
1, gets the raw materials ready
Take by weighing raw material by above-mentioned weight fraction ratio.Sodium hydroxide is mixed with 40% the aqueous solution; Borax is mixed with 20% the aqueous solution with hot water; After urea being mixed with 40% the aqueous solution, water glass is dissolved in, make mixing solutions behind the mixing; Ferrous sulfate is mixed with 20% the aqueous solution.
2, batch mixing
Load weighted starch is placed reactor, open agitator, with atomizer sodium hydroxide solution is evenly sprayed into, entire operation was finished in 2-3 minute; And then with quick even the spray on starch of hydrogen peroxide; Last successively the mixed solution of copperas solution, borax soln, urea and water glass is evenly joined in the reactor, above-mentioned all operations all carries out under whipped state.
3, oxidizing reaction and oven dry
The mixture that step 2 obtains is divided in the oven dry pallet, then pallet is placed 80 ℃ constant temperature air dry oven to react 2h (this process is not opened air blast), baking oven is transferred to 105 ℃ again, mixture oven dry (this process is opened the gas blower air blast).
4, pulverize
After the mixture that step 3 is obtained is pulverized with pulverizer, pack after crossing 80 mesh sieves, obtain dry powder type organic compound fertilizer pelletizing adhesive.
After testing, the physico-chemical property of prepared dry powder type organic compound fertilizer pelletizing adhesive is:
1) color and luster and form: light yellow solid powder;
2) 20% viscosity in aqueous solution: 98.6mPas (rotational viscosimeter, 25 ℃);
3) pH value (binding agent: water=1: 10 (ratio of weight and number)): 9.4;
4) storage period: greater than 6 months;
5) the average anti-crushing power of mixed organic manure particulate: greater than 14N (national standard is＞6N);
6) organic compound fertilizer pelletizing returning charge rate: less than 4%;
7) the mixed organic manure particle diameter is the granule content of 1-6mm: greater than 90%.
8) the shared material's proportion of binding agent: 0.8%-1.5%
The preparation of 2,1 ton of dry powder type organic compound fertilizer pelletizing adhesive of embodiment
It is 150: 5: 10 that the organic compound fertilizer pelletizing adhesive of present embodiment includes the weight fraction ratio: 1.5: 8: 6: 6 starch, hydrogen peroxide, sodium hydroxide, ferrous sulfate, borax, urea and water glass.Concrete preparation process comprises the steps:
1, gets the raw materials ready
Take by weighing raw material by above-mentioned weight fraction ratio.Sodium hydroxide is mixed with 40% the aqueous solution; Borax is mixed with 20% the aqueous solution with hot water; After urea being mixed with 40% the aqueous solution, water glass is dissolved in, make mixing solutions behind the mixing; Ferrous sulfate is mixed with 20% the aqueous solution.
2, batch mixing
Load weighted starch is placed reactor, open agitator, with atomizer sodium hydroxide solution is evenly sprayed into, entire operation was finished in 2-3 minute; And then with quick even the spray on starch of hydrogen peroxide; Last successively the mixed solution of copperas solution, borax soln, urea and water glass is evenly joined in the reactor, above-mentioned all operations all carries out under whipped state.
3, oxidizing reaction and oven dry
The mixture that step 2 obtains is divided in the oven dry pallet, then pallet is placed 80 ℃ constant temperature air dry oven to react 2h (this process is not opened air blast), baking oven is transferred to 105 ℃ again, mixture oven dry (this process is opened the gas blower air blast).
4, pulverize
After the mixture that step 3 is obtained is pulverized with pulverizer, pack after crossing 80 mesh sieves, obtain dry powder type organic compound fertilizer pelletizing adhesive.
After testing, the physico-chemical property of prepared dry powder type organic compound fertilizer pelletizing adhesive is:
1) color and luster and form: light yellow solid powder;
2) 20% viscosity in aqueous solution: 102.7mPas (rotational viscosimeter, 25 ℃);
3) pH value (binding agent: water=1: 10 (ratio of weight and number)): 9.8;
4) storage period: greater than June;
5) the average anti-crushing power of mixed organic manure particle: greater than 14N (national standard is＞6N);
6) organic compound fertilizer pelletizing returning charge rate: 4.1%;
7) the mixed organic manure particle diameter is the granule content of 1-6mm: greater than 90%.
8) the shared material's proportion of binding agent: 0.8%-1.5%
The preparation of 3,1 ton of dry powder type organic compound fertilizer pelletizing adhesive of embodiment
It is 200: 6: 12 that the organic compound fertilizer pelletizing adhesive of present embodiment includes the weight fraction ratio: 2: 8: 6: 4 starch, hydrogen peroxide, sodium hydroxide, ferrous sulfate, borax, urea and water glass.Concrete preparation process comprises the steps:
1, gets the raw materials ready
Take by weighing raw material by above-mentioned weight fraction ratio.Sodium hydroxide is mixed with 40% the aqueous solution; Borax is mixed with 20% the aqueous solution with hot water; After urea being mixed with 40% the aqueous solution, water glass is dissolved in, make mixing solutions behind the mixing; Ferrous sulfate is mixed with 20% the aqueous solution.
2, batch mixing
Load weighted starch is placed reactor, open agitator, with atomizer sodium hydroxide solution is evenly sprayed into, entire operation was finished in 2-3 minute; And then with quick even the spray on starch of hydrogen peroxide; Last successively the mixed solution of copperas solution, borax soln, urea and water glass is evenly joined in the reactor, above-mentioned all operations all carries out under whipped state.
3, oxidizing reaction and oven dry
The mixture that step 2 obtains is divided in the oven dry pallet, then pallet is placed 80 ℃ constant temperature air dry oven to react 2h (this process is not opened air blast), baking oven is transferred to 105 ℃ again, mixture oven dry (this process is opened the gas blower air blast).
4, pulverize
After the mixture that step 3 is obtained is pulverized with pulverizer, pack after crossing 60 mesh sieves, obtain dry powder type organic compound fertilizer pelletizing adhesive.
After testing, the physico-chemical property of prepared dry powder type organic compound fertilizer pelletizing adhesive is:
1) color and luster and form: light yellow solid powder;
2) 20% viscosity in aqueous solution: 112.8mPas (rotational viscosimeter, 25 ℃);
3) pH value (binding agent: water=1: 10 (ratio of weight and number)): 9.1;
4) storage period: greater than 6 months;
5) the average anti-crushing power of mixed organic manure particle: greater than 14N (national standard is＞6N);
6) organic compound fertilizer pelletizing returning charge rate: 3.1%;
7) the mixed organic manure particle diameter is the granule content of 1-6mm: greater than 90%.
Embodiment 4, granulation test
The dry powder type organic compound fertilizer pelletizing adhesive of the foregoing description preparation is carried out the granulation test with ordinary method, the result show when the binding agent consumption account for total inventory 1.38% the time, particle diameter accounts for 93.07% of total material greater than the granule content of 1mm in the mixed organic manure particle, and the granule content of particle diameter between 1-6mm accounts for greater than 95.0% of 1mm particle total amount.And particulate mean compressive strength intensity 〉=14N.
Claims (9)
1, a kind of dry powder type organic compound fertilizer pelletizing adhesive, its raw material are the materials of following portions by weight ratio:
Starch 100-200
Hydrogen peroxide 2-6
Highly basic 6-12
Molysite 1-3
Borax 4-10
Urea 2-6
Water glass 4-6.
2, dry powder type organic compound fertilizer pelletizing adhesive according to claim 1 is characterized in that: described dry powder type organic compound fertilizer pelletizing adhesive, its raw material are the materials of following portions by weight ratio:
Starch 120
Hydrogen peroxide 4
Highly basic 6
Molysite 1.5
Borax 6
Urea 3
Water glass 5.
3, dry powder type organic compound fertilizer pelletizing adhesive according to claim 1 and 2 is characterized in that: the mass percentage concentration of described hydrogen peroxide is 30%; Described highly basic is any one or a few in sodium hydroxide, potassium hydroxide, sodium oxide, potassium oxide and the ammonium hydroxide; Described molysite is any one or a few in ferrous sulfate, ferric sulfate, iron protochloride and the iron(ic) chloride.
4, the preparation method of the described dry powder type organic compound fertilizer pelletizing adhesive of a kind of claim 1 may further comprise the steps:
1) gets the raw materials ready: get starch, hydrogen peroxide, highly basic, molysite, borax, urea and water glass that ratio of weight and number is 100-200: 2-6: 6-12: 1-3: 4-10: 2-6: 4-6.Except that borax, with the water-soluble wiring solution-forming of solid matter;
2) the strong base solution spray is added in the starch, uniform mixing, mixing process constantly stirs;
3) with hydrogen peroxide evenly spray be added to step 2) mixture in, iron salt solutions is also sprayed be added in the mixture then, borax is sneaked into stir again;
4) mixture of step 3) is stirred after, the mixed solution and sprayed of urea and water glass is added in the mixture, adition process constantly stirs;
5) mixture with the step 4) gained places 60-80 ℃ of baking oven to react 1.5-2.5h, is warming up to 100-110 ℃ of oven dry then;
6) after the mixture pulverizing with the step 5) gained, behind the 60-100 mesh sieve, obtain dry powder type organic compound fertilizer pelletizing adhesive excessively.
5, preparation method according to claim 4 is characterized in that: the ratio of weight and number of described starch, hydrogen peroxide, highly basic, molysite, borax, urea and water glass is 120: 4: 6: 1.5: 6: 3: 5.
6, according to claim 4 or 5 described preparation methods, it is characterized in that: the concentration of strong base solution is 35%-45% described step 2), and it is 2-3 minute that spray adds the time; The concentration of hydrogen peroxide is 30% in the step 3), and the concentration of molysite is 15%-25%, and borax is sneaked into after crossing 60 mesh sieves or being made into the solution that concentration is 18%-23% again; The concentration of urea is 35%-45% in the step 4), and the concentration of sodium silicate solution is 25%-35%.
7, preparation method according to claim 6 is characterized in that: the concentration of strong base solution is 40% in the described step 1); Step 2) concentration of molysite is 20% in, and borax is crossed 60 mesh sieves or is made into concentration is to sneak into behind 20% the solution again; The concentration of urea is 40% in the step 3), and the concentration of sodium silicate solution is 30%.
8, according to claim 4 or 5 described preparation methods, it is characterized in that: described highly basic is any one or a few in sodium hydroxide, potassium hydroxide, sodium oxide, potassium oxide and the ammonium hydroxide; Molysite is any one or a few in ferrous sulfate, ferric sulfate, iron protochloride and the iron(ic) chloride;
9, according to claim 4 or 5 described preparation methods, it is characterized in that: the temperature of reaction in the described step 4) is 80 ℃, and the reaction times is 2.0h, and bake out temperature is 105 ℃; The diameter of sieve aperture is 80 orders in the step 5).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826893A (en) * | 2011-11-25 | 2012-12-19 | 中国科学院烟台海岸带研究所 | Organic-inorganic compound fertilizer binder and its preparation method |
| CN110218116A (en) * | 2019-06-18 | 2019-09-10 | 北京尧之龙科技发展有限公司 | A kind of granular compound fertilizer adhesive for granulating and preparation method thereof |
| CN115715546A (en) * | 2022-10-26 | 2023-02-28 | 山东中石药业有限公司 | Thifensulfuron methyl-containing weeding composition and production process thereof |
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| CN108349828A (en) | 2015-11-16 | 2018-07-31 | 沙特基础工业全球技术有限公司 | Coated granular fertilizer, its manufacturing method and application thereof |
| BR112018009872B1 (en) | 2015-11-16 | 2022-11-16 | Sabic Global Technologies B.V. | MANUFACTURING PROCESS OF A COATED FERTILIZER |
| CN109796278B (en) * | 2019-03-29 | 2022-07-01 | 四川轻化工大学 | Preparation method of binder suitable for low-concentration compound fertilizer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161317A (en) * | 1997-02-24 | 1997-10-08 | 郑州工业大学 | Method for prodn. of multi-nutrient slow releasing coated urea |
| CN1390812A (en) * | 2002-07-02 | 2003-01-15 | 张夫道 | Adhesive for granulating mixed organic fertilizer and its preparing process |
| CN1262524C (en) * | 2003-12-19 | 2006-07-05 | 哈尔滨工业大学环保科技股份有限公司 | Organic-inorganic complex fertilizer granulating agent |
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2005
- 2005-07-18 CN CNB2005100842481A patent/CN1298679C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826893A (en) * | 2011-11-25 | 2012-12-19 | 中国科学院烟台海岸带研究所 | Organic-inorganic compound fertilizer binder and its preparation method |
| CN110218116A (en) * | 2019-06-18 | 2019-09-10 | 北京尧之龙科技发展有限公司 | A kind of granular compound fertilizer adhesive for granulating and preparation method thereof |
| CN115715546A (en) * | 2022-10-26 | 2023-02-28 | 山东中石药业有限公司 | Thifensulfuron methyl-containing weeding composition and production process thereof |
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