CN107298632A - A kind of humic acid composite material and preparation method thereof - Google Patents
A kind of humic acid composite material and preparation method thereof Download PDFInfo
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- CN107298632A CN107298632A CN201710671387.7A CN201710671387A CN107298632A CN 107298632 A CN107298632 A CN 107298632A CN 201710671387 A CN201710671387 A CN 201710671387A CN 107298632 A CN107298632 A CN 107298632A
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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
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The present invention relates to fertilizer field, and in particular to a kind of humic acid composite material and preparation method thereof, and a kind of humic acid composite material is made up of the raw material of following parts by weight：Urea, MAP, potassium chloride, ammonium humate, attapulgite, illite, borax, manganese sulfate, ammonium molybdate, preparation method, including by the borax of above-mentioned parts by weight, manganese sulfate, ammonium molybdate adds after crushing and mixing is stirred in mixer, adds appropriate distilled water and causes above-mentioned mixed dissolution；After add complexing agent, stirring reaction obtains component A；Ammonium humate and component A are mixed to obtain B component；Attapulgite and illite are crushed respectively with urea, potassium chloride, MAP with above-mentioned parts by weight are added simultaneously to be uniformly mixed in mixer, after granulation, dried in Rotary drying tower, finished product is through cooling, screening, metering packing, the present invention contains nutrient necessary to plant, improves fertilizer efficiency and chemical fertilizer utilization ratio, improved soil, improves crop quality.
Description
Technical field
The present invention relates to fertilizer field, and in particular to a kind of humic acid composite material and preparation method thereof.
Background technology
Using raw materials such as peat, lignite, using the different modes of production, produce containing a large amount of humic acid and plant growth,
Nitrogen, phosphorus, potassium and some micro- products required for development, are just humic acid fertilizer.Equivalent to a kind of organic and inorganic compound
Hefei.The kind of humic acid fertilizer has ammonium humate, ammonium nitro-humate, humic acid phosphorus, ammonium humate phosphorus, sodium humate, corruption
Grow sour potassium, high nitrogen ammonium humate etc..
Existing humic acid, so as to strengthen crops fertilizer sucting ability, promotes in improved soil, and composite fertilizer's utilization rate of fertilizer
Still there is improvement to improve space in terms of crop yield raising.
The content of the invention
To solve problem of the prior art, the invention provides a kind of humic acid composite material, fertilizer efficiency improves in the composite fertilizer
With chemical fertilizer utilization ratio, improved soil simultaneously there is provided a kind of preparation method of the humic acid composite material.
In order to achieve the above object, the present invention uses following technical scheme：A kind of humic acid composite material, by following weight
The raw material composition of part：Urea：25-35 parts, MAP：25-30 parts, potassium chloride：23-28 parts, ammonium humate：It is 8-12 parts, recessed
Convex rod soil：6-10 parts, illite：2-5 parts, borax：0.3-1.0 parts, manganese sulfate：0.5-1.5, ammonium molybdate：1-2 parts.
Described humic acid composite material, is made up of the raw material of following parts by weight：Urea：30 parts, MAP：27 parts,
Potassium chloride：25 parts, ammonium humate：10 parts, attapulgite：8 parts, illite：3 parts, borax：0.5 part, manganese sulfate：0.8, molybdic acid
Ammonium：1 part.
Above-mentioned humic acid composite material preparation method, including following preparation process：
1）By the borax of above-mentioned parts by weight, manganese sulfate, ammonium molybdate adds after crushing and mixing is stirred in mixer, adds appropriate distillation
Water causes said mixture to dissolve, and temperature control obtains mixed liquor at 50-60 DEG C；
2）By complexing agent（EDTA and citric acid are used as complexing agent）Mixed liquor is added, complexation temperature is controlled at 55-65 DEG C, and stirring is anti-
1h is answered to obtain component A；
3）Ammonium humate is milled to particle diameter less than 1um by grinding mill, mixes 0.5h to obtain B groups with component A afterwards
Point, when determining B component PH for 7-9；
4）The attapulgite and illite of above-mentioned parts by weight and urea are crushed to below 40 mesh respectively, the chlorine with above-mentioned parts by weight
Change potassium, MAP and add step 3 simultaneously）In mixer in be uniformly mixed, granulated by granulating disc（3-5mm）
Afterwards, dried in Rotary drying tower, finished product is through cooling, screening, metering packing.
The present invention contains nutrient necessary to plant, improves fertilizer efficiency and article is made in chemical fertilizer utilization ratio, improved soil, improvement
Matter, enhancing development, raising are degeneration-resistant（Drought resisting, cold-resistant, salt resistance alkali, preventing from heavy metal pollution）Performance etc., is finally reached raising production
Amount, the purpose of protecting agriculture ecological environment, the adhesive of composite fertilizer is made of attapulgite, soil conditioner is made with illite, is filled
Divide high characteristics of beneficiating ingredient content using both, make use of the characteristic functions of attapulgite, can handle by factory's three-waste pollution
Soil, be used for a long time, qualified plantation good farmland can be restored to, illite powder is introduced into compound fertilizer production technology, solve native
Earth structure problem, improves permeability, strengthens fertilizer efficiency persistence, and the physicochemical character of improved soil, all the year round administration can make fertile soil,
Particularly barrenly with secondary soybean field for many years, effect is more notable, strengthens the absorption of nutrient, using A to the preparation side of B component
Method can fully complete complex reaction, and the rear ammonium humate that adds causes ammonium humate mix with component A, control mixing time with
Both mixing well are realized during pH value, fertilizer efficiency is retained, finally by the way of illite and attapulgite mixing
Using both respective advantages, the optimization of fertilizer efficiency is realized.
Embodiment
The present invention is described in further details below by embodiment, embodiment is only used for illustrating the present invention, does not limit
The scope of the present invention processed.
Embodiment 1：A kind of humic acid composite material, is made up of the raw material of following parts by weight：Urea：25 parts, MAP：
25 parts, potassium chloride：23 parts, ammonium humate：8 parts, attapulgite：6 parts, illite：2 parts, borax：0.3 part, manganese sulfate：0.5,
Ammonium molybdate：1 part.Above-mentioned humic acid composite material preparation method, including following preparation process：1）By the boron of above-mentioned parts by weight
Sand, manganese sulfate, ammonium molybdate adds after crushing and mixing is stirred in mixer, adds appropriate distilled water and said mixture is dissolved,
Temperature control obtains mixed liquor at 50 DEG C；2）By complexing agent（EDTA and citric acid are used as complexing agent）Add mixed liquor, complexing temperature
Degree control is 55, and stirring reaction 1h obtains component A；3）Ammonium humate is milled to particle diameter less than 1um by grinding mill, afterwards and A
Component mixes 0.5h so as to obtain B component, when measure B component PH is 7；4）By the attapulgite of above-mentioned parts by weight and Erie
Stone is crushed to below 40 mesh respectively with urea, and the potassium chloride, MAP with above-mentioned parts by weight add step 3 simultaneously）In stir
Mix in machine and be uniformly mixed, granulated by granulating disc（3mm）Afterwards, dried in Rotary drying tower, finished product is through cooling, sieve
Point, metering packing.Complex reaction can fully be completed using A to B component compound method, the rear ammonium humate that adds causes
Ammonium humate is mixed with component A, and both mixing well are realized during control mixing time and pH value, and fertilizer efficiency retains
It is good, finally realize the optimization of fertilizer efficiency using both respective advantages by the way of illite and attapulgite mixing.
Embodiment 2：A kind of humic acid composite material, is made up of the raw material of following parts by weight：Urea：30 parts, MAP：
27 parts, potassium chloride：25 parts, ammonium humate：10 parts, attapulgite：8 parts, illite：3 parts, borax：0.5 part, manganese sulfate：0.8,
Ammonium molybdate：1 part.Above-mentioned humic acid composite material preparation method, including following preparation process：1）By the boron of above-mentioned parts by weight
Sand, manganese sulfate, ammonium molybdate adds after crushing and mixing is stirred in mixer, adds appropriate distilled water and said mixture is dissolved,
Temperature control obtains mixed liquor at 55 DEG C；2）By complexing agent（EDTA and citric acid are used as complexing agent）Add mixed liquor, complexing temperature
Degree control is at 60 DEG C, and stirring reaction 1h obtains component A；3）Ammonium humate is milled to particle diameter less than 1um by grinding mill, afterwards with
Component A mixes 0.5h so as to obtain B component, when measure B component PH is 8；4）By the attapulgite of above-mentioned parts by weight and she
Sharp stone is crushed to below 40 mesh respectively with urea, and the potassium chloride, MAP with above-mentioned parts by weight add step 3 simultaneously）In
It is uniformly mixed, is granulated by granulating disc in mixer（4mm）Afterwards, in Rotary drying tower dry, finished product through cooling,
Screening, metering packing.Complex reaction can fully be completed using A to B component compound method, the rear ammonium humate that adds makes
Obtain ammonium humate to mix with component A, realize that both mix well during control mixing time and pH value, fertilizer efficiency retains
It is good, finally realize the optimization of fertilizer efficiency using both respective advantages by the way of illite and attapulgite mixing.
Embodiment 3：A kind of humic acid composite material, is made up of the raw material of following parts by weight：Urea：35 parts, MAP：
30 parts, potassium chloride：28 parts, ammonium humate：12 parts, attapulgite：10 parts, illite：5 parts, borax：1.0 parts, manganese sulfate：
1.5, ammonium molybdate：2 parts.Above-mentioned humic acid composite material preparation method, including following preparation process：1）By above-mentioned parts by weight
Borax, manganese sulfate, ammonium molybdate adds after crushing and mixing is stirred in mixer, adds appropriate distilled water and causes said mixture molten
Solution, temperature control obtains mixed liquor at 60 DEG C；2）By complexing agent（EDTA and citric acid are used as complexing agent）Add mixed liquor, network
Temperature control is closed at 65 DEG C, stirring reaction 1h obtains component A；3）Ammonium humate is milled to particle diameter less than 1um by grinding mill,
0.5h is mixed with component A so as to obtain B component, when measure B component PH is 9 afterwards；4）By the attapulgite of above-mentioned parts by weight
It is crushed to respectively below 40 mesh with illite and urea, the potassium chloride, MAP with above-mentioned parts by weight add step 3 simultaneously）
In mixer in be uniformly mixed, granulated by granulating disc（5mm）Afterwards, dried in Rotary drying tower, finished product warp
Cooling, screening, metering packing.Complex reaction can fully be completed using A to B component compound method, it is rear to add rotten plant
Sour ammonium causes ammonium humate to be mixed with component A, and both mixing well, fertilizer are realized during control mixing time and pH value
Effect is retained, and finally realizes the optimal of fertilizer efficiency using both respective advantages by the way of illite and attapulgite mixing
Change.
The porous crystal structure of attapulgite and illite powder, can be with the physical property of improved soil, particularly increase pair
The transparent performance of moisture, its water-retaining property can be increased to sandy soil, and its water penetration can be increased to the viscous hardened soil of weight.Concave convex rod
The ion exchange of powder, can exchange soil alkali exchange capacity, improve the pH value of soil, reduce soil aciditiy, improvement acid
Property soil, the ion exchange of attapulgite can discharge up to 23 metal ion species, supplement soil various trace elements,
Attapulgite is set to turn into the micro- mineral fertilizer of ionic.The ion exchange of attapulgite, can exchange various metals
Ion, particularly heavy metal ion, thus can be handled with attapulgite by the soil of factory's three-waste pollution.
Mainly the technical indicator of attapulgite should meet following condition：
Physical property：
PH value：Concave-convex clay rod is in alkalescence, and pH value is 8-9.
Fineness：200 mesh.
Cation exchange capacity（CEC）：30~50 grams/100 grams.The commutative Ca ions of Concave-convex clay rod be 15 ~ 25mmol/
100g, commutative Mg ions are 5 ~ 15mmol/100g.
Outward appearance and physicochemical property：Canescence, tasteless, nontoxic, corrosion-free effect.
Index of performance：Natural moisture content≤15% of 200 mesh sieve margins≤5%
Absorbance ratio-derivative method：The Absorbance ratio-derivative method of Concave-convex clay rod, be 24g/100g ±.
Colloid index：Generally 40 ~ 50ml/15g.
Expansion capacity：Generally 4 ~ 6ml/g
Specific surface area：Usually 125-210m2/g（BET method）.
Chemical composition meets following table requirement：
Main chemical compositions（%）:
| Composition | SiO2 | Ti | AL2O3 | Cr | Fe2O3 | MgO | CaO | Na2O | K2O | P2O5 | Other |
| Content | 44.59 | 0.38 | 13.77 | 35 | 6.61 | 5.08 | 4.77 | 1.07 | 3.49 | 0.20 | 15.46 |
Micronutrient levels（PPM）：
| Composition | Cu | Pb | Zn | Co | Ni | Sr | Lr | Mo | Ba | Bi | Other |
| Content | 64 | 5 | 101 | 5 | 41 | 284 | 13.37 | 0.68 | 453 | 0.16 |
Illitic appearance white, canescence, impure more gray or black, earthy, property are crisp, frangible, quality is fine and smooth,
Smooth, hardness is small, is long placed in water and does not expand, and loosely has research of chaotic phenomenon.Both at home and abroad it is generally acknowledged that the illitic origin cause of formation has three major types:
Sedimentary origin, the hydrothermal alteration origin cause of formation and be weathered into because.Sedimentogenic mineral deposit, it is general larger, generally investigate the more than one hundred million tons of reserves, ore deposit
Body is stable, with Henan Shu Shankuang（Table mountain Xincheng District, Baofeng, Lushan intersection）To represent, the several larger illites in the world
Ore deposit belongs to this type.Potassium content is higher in illite, therefore can make agricultural fertilizer and soil conditioner.Illite clay is passed through
Physics and chemical method processing are crossed, potassium calcium, potassium-nitrogen fertilizer, potassium nitrogen is can be made into and mixes fertilizer and potassium chloride etc..Chemical composition is because containing it
Its impurity is changed greatly, except SiO2、Al2O3Content height difference is larger outer, and K2O and Na2O relatively stablizes, general K2O 6%-
9%, Na2O are between 0.5% -1.5%.
The present invention is continuously supplied to the various nutrients needed for plant growth within the time of infertility of crop, after
Phase is difficult de- fertilizer, promotes root system development, protects strong sprout, accelerates plant metabolism, promotes organic matter accumulation, improves the battalion of crop
The situation of supporting, water conservation drought resisting improves ground temperature, strengthens stress resistance of plant, mitigates the microbiologic population in disease pest harm, increase soil.
Contrast test is carried out using the compound fertilizer of the present invention and the Common compound fertilizer of in the market, dose is identical, other
Planting conditions are identical, and result of the test shows：The present invention increases production 10-16% to wheat per mu yield compared with Common compound fertilizer, and the present invention is more common
Composite fertilizer increases production 13-17% to mu Yield of Soybean.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (3)
1. a kind of humic acid composite material, it is characterised in that：It is made up of the raw material of following parts by weight：Urea：25-35 parts, phosphoric acid
One ammonium：25-30 parts, potassium chloride：23-28 parts, ammonium humate：8-12 parts, attapulgite：6-10 parts, illite：2-5 parts, boron
Sand：0.3-1.0 parts, manganese sulfate：0.5-1.5, ammonium molybdate：1-2 parts.
2. humic acid composite material according to claim 1, it is characterised in that：It is made up of the raw material of following parts by weight：Urine
Element：30 parts, MAP：27 parts, potassium chloride：25 parts, ammonium humate：10 parts, attapulgite：8 parts, illite：3 parts, borax：
0.5 part, manganese sulfate：0.8, ammonium molybdate：1 part.
3. a kind of humic acid composite material preparation method according to claim 1 or 2, it is characterised in that：Including following system
Standby step：
1）By the borax of above-mentioned parts by weight, manganese sulfate, ammonium molybdate adds after crushing and mixing is stirred in mixer, adds appropriate distillation
Water causes said mixture to dissolve, and temperature control obtains mixed liquor at 50-60 DEG C；
2）By complexing agent（EDTA and citric acid are used as complexing agent）Mixed liquor is added, complexation temperature is controlled at 55-65 DEG C, and stirring is anti-
1h is answered to obtain component A；
3）Ammonium humate is milled to particle diameter less than 1um by grinding mill, mixes 0.5h to obtain B groups with component A afterwards
Point, when determining B component PH for 7-9；
4）The attapulgite and illite of above-mentioned parts by weight and urea are crushed to below 40 mesh respectively, the chlorine with above-mentioned parts by weight
Change potassium, MAP and add step 3 simultaneously）In mixer in be uniformly mixed, granulated by granulating disc（3-5mm）
Afterwards, dried in Rotary drying tower, finished product is through cooling, screening, metering packing.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824457A (en) * | 2019-03-21 | 2019-05-31 | 湖南中农生态肥业有限公司 | A kind of novel humic acid fertilizer and its application |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299794A (en) * | 2000-11-14 | 2001-06-20 | 沈阳绿谷生态肥料有限公司 | Controllable efficient organic and inorganic composite fertilizer |
| CN1483710A (en) * | 2003-07-18 | 2004-03-24 | 曹玉珩 | Rareearth humic acid complete compound fertilizer, its preparation method and use |
| CN1990432A (en) * | 2005-12-28 | 2007-07-04 | 郭宗恒 | Processing method for humic acidic ammonium complex blending fertilizer |
| CN102108032A (en) * | 2009-12-25 | 2011-06-29 | 中国科学院沈阳应用生态研究所 | Special fertilizer for production of soybean and preparation method and application method thereof |
| CN102358711A (en) * | 2011-09-30 | 2012-02-22 | 瓮福（集团）有限责任公司 | Soybean special fertilizer and preparation method thereof |
| CN102417420A (en) * | 2011-09-12 | 2012-04-18 | 竹溪县宝田生物制品有限公司 | Biological organic multielement quick-acting fertilizer |
| CN103204729A (en) * | 2012-01-17 | 2013-07-17 | 山东新沭化化肥有限公司 | Composite fertilizer comprising chitin, humic acid, and middle and trace elements |
| CN105712794A (en) * | 2016-04-28 | 2016-06-29 | 天津芦阳化肥股份有限公司 | Special organic-inorganic blue-green alga compound fertilizer for soybeans and preparation method thereof |
| CN106316662A (en) * | 2015-06-16 | 2017-01-11 | 孙建和 | Rare earth humic acid complete compound fertilizer and preparation method thereof |
-
2017
- 2017-08-08 CN CN201710671387.7A patent/CN107298632A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299794A (en) * | 2000-11-14 | 2001-06-20 | 沈阳绿谷生态肥料有限公司 | Controllable efficient organic and inorganic composite fertilizer |
| CN1483710A (en) * | 2003-07-18 | 2004-03-24 | 曹玉珩 | Rareearth humic acid complete compound fertilizer, its preparation method and use |
| CN1990432A (en) * | 2005-12-28 | 2007-07-04 | 郭宗恒 | Processing method for humic acidic ammonium complex blending fertilizer |
| CN102108032A (en) * | 2009-12-25 | 2011-06-29 | 中国科学院沈阳应用生态研究所 | Special fertilizer for production of soybean and preparation method and application method thereof |
| CN102417420A (en) * | 2011-09-12 | 2012-04-18 | 竹溪县宝田生物制品有限公司 | Biological organic multielement quick-acting fertilizer |
| CN102358711A (en) * | 2011-09-30 | 2012-02-22 | 瓮福（集团）有限责任公司 | Soybean special fertilizer and preparation method thereof |
| CN103204729A (en) * | 2012-01-17 | 2013-07-17 | 山东新沭化化肥有限公司 | Composite fertilizer comprising chitin, humic acid, and middle and trace elements |
| CN106316662A (en) * | 2015-06-16 | 2017-01-11 | 孙建和 | Rare earth humic acid complete compound fertilizer and preparation method thereof |
| CN105712794A (en) * | 2016-04-28 | 2016-06-29 | 天津芦阳化肥股份有限公司 | Special organic-inorganic blue-green alga compound fertilizer for soybeans and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824457A (en) * | 2019-03-21 | 2019-05-31 | 湖南中农生态肥业有限公司 | A kind of novel humic acid fertilizer and its application |
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Application publication date: 20171027 |