CN106631578A - Humic acid composite fertilizer and preparation method thereof - Google Patents

Humic acid composite fertilizer and preparation method thereof Download PDF

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Publication number
CN106631578A
CN106631578A CN201611122690.3A CN201611122690A CN106631578A CN 106631578 A CN106631578 A CN 106631578A CN 201611122690 A CN201611122690 A CN 201611122690A CN 106631578 A CN106631578 A CN 106631578A
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China
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urea
humic acid
parts
phosphate
fertilizer
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Inventor
石朋飞
穆光远
陈彬
阚学飞
张敏
黄春艳
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Shenzhen Batian Ecotypic Engineering Co Ltd
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Shenzhen Batian Ecotypic Engineering Co Ltd
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Priority to CN201611122690.3A priority Critical patent/CN106631578A/en
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    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B7/00Fertilisers based essentially on alkali or ammonium orthophosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/90Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Soil Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)

Abstract

The invention relates to a humic acid composite fertilizer, which is prepared from 20 to 30 parts of humic acid, 10 to 20 parts of urea phosphate, 15 to 25 parts of ammonium polyphosphate, 5 to 15 parts of magnesium ammonium phosphate, 0.1 to 3 parts of trace elements, 15 to 25 parts of urea, 3 to 10 parts of monoammonium phosphate and 18 to 30 parts of potassium chloride. A preparation method of the humic acid composite fertilizer comprises the following steps of synthesizing the phosphoric acid and the urea for preparing the urea phosphate; then, synthesizing the prepared urea phosphate and the urea to prepare the ammonium polyphosphate; then, fusing the urea according to the weight parts of the ingredients; after the addition of the potassium chloride, adding the ammonium polyphosphate, urea phosphate and trace elements into a mixed groove to stir; then, adding the monoammonium phosphate and magnesium oxide; performing stirring; finally, adding the humic acid; uniformly mixing the materials for granulation. The prepared humic acid composite fertilizer has the advantages that the nutrients can be gradually released according to the soil condition; the requirements of the crops at different growth stages can be met; the soil structure can be effectively improved; the effects of nitrogen control, phosphorus stabilization and potassium retaining can be achievedt; the crop resistance can be improved; the crop quality is improved; the yield is increased.

Description

Humic acid complex fertilizer and preparation method thereof
Technical field
The invention belongs to technical field of fertilizers, more particularly to a kind of have quick-acting and long-acting humic acid complex fertilizer and preparation concurrently Method.
Background technology
At present, the long-term single administration inorganic chemical fertilizer in some soils of China, humus cannot be supplemented, soil granular knot Structure is destroyed, and so as to cause soil compaction, acidifying or salinization of soil, the utilization rate of domestic fertilizer is natively high, and above-mentioned is asked Topic will result directly in utilization rate of fertilizer further to be reduced, and particularly quick-acting phosphate fertilizer are easy to be fixed in being manured into soil, and general seven Invalid phosphorus is largely converted into it, another some water-soluble phosphorus is with water leaching loss.Urea can be in urase and nitrification in being manured into soil Fast decoupled in the presence of enzyme, nitrogen volatilization causes soil fertility not enough to directly affect plant growth.
On the other hand, though traditional inorganic fertilizer nutrient content is very high, fertilizer efficiency is rapid, ageing very short, it is impossible to meets and makees Thing needs fertilizer to require in whole growth cycle.If disposable heavy dressing, nutrient is not probably absorbed by crops with regard to volatilization, leaching loss Or by soil fixing, burn seedlings phenomenon even occurs in crops seedling stage, and then occur in crop alimentary growth and Later growth Nutrient supply is not enough;If a small amount of fertilising, plant growth can be caused slow, extend and receive fruiting period, affect fruit quality, reduce producing Amount.Current fertilizer structure and fertilization mode be not scientific to cause fertilizer nutrient release and crop nutrition content demand not in tune, fertilizer Material utilization rate is low, and unemployed fertilizer is cured by the soil to be affected the physicochemical property of soil or flow into water body with rainwater to cause ring Border is polluted, and these all have a strong impact on the sustainable development of agricultural and the foundation of the ecological agriculture.
To meet plant time of infertility nutrient demand, utilization rate of fertilizer is improved, this area scientific research personnel is constantly researching and developing Various fertilizer, the patent document CN201110088665.9 as disclosed in Patent Office of the People's Republic of China, there is provided a kind of rapid long-acting humic acid Multicomponent fertilizer, the fertilizer long-acting part waste residue after iron, ardealite, dolomite are selected by urea, ammonium sulfate, humic acid, pyrite cinder Powder etc. is constituted, and quick-acting parts include urea, humic acid, potassium chloride, borax etc., prepare remix packaging respectively.Above-mentioned multicomponent fertilizer In, constituted using various ingredients, and described pyrite cinder selects after iron Fe in waste residue2O3Raw material sources are had by content >=30% Certain restriction and requirement, undoubtedly increased the cost of product, and effect is undesirable after administration.CN201410027632.7 is disclosed It is a kind of with quick-acting and sustained release effect organic and inorganic fertilizers, the invention is to first pass through disk or cylinder prepares master batch, in master batch Upper spraying xanthans and sulphur suspension, then finally spray alkanamine class acetate in master batch fertilizer surface spraying fertilizer slurry again Anticaking agent, air-dries and packed after cooling.In said method, master batch fertilizer components are more, send out containing bacteria residue powder and feces of livestock and poultry mixing Ferment material, raw material sources high cost, complicated process of preparation, outer layer fertilizer slurry need in three times be sprayed at the master batch fertilizer for having coated film On;Spraying every time need to be through spraying cooling and two equipment of Drying high temperature drying, and finished product metaplasia produces long flow path, high cost, effect Rate is low.CN201510966067.5 disclose it is a kind of prepare the quick-acting and long-acting new type compound fertilizer for combining by raw material of ore, The fertilizer is pre-processed, in phosphoric acid pyroreaction, water extraction, ammoniacal liquor with potassium feldspar, rock phosphate in powder, medical stone as raw material through ore With and post processing etc. the stage synthesis.Raw material sources are had certain restriction and requirement by said method, and need to be to various separate sources Ore pre-processed, technological process is long, and preparation process is complicated, and invalid components are more in product, and fertilizer efficiency is poor, also preparation process The subsequent treatment problem of middle byproduct.
Therefore, it is necessary to solve drawbacks described above.
The content of the invention
The purpose of the present invention is intended to overcome that fertilizer efficiency in prior art is short, nutrient is easy to run off, soil compaction the problems such as, it is first First have quick-acting and long-acting humic acid composite materials concurrently there is provided a kind of.
The humic acid complex fertilizer that the present invention is provided, including the raw material of following weight parts:
Humic acid 20-30 parts, urea phosphate 10-20 parts, APP 15-25 parts, ammonium magnesium phosphate 5-15 parts, trace element 0.1-3 parts, urea 15-25 parts, MAP 3-10 parts, potassium chloride 18-30 parts.
Alternatively, the urea phosphate is with urea and phosphoric acid as Material synthesis.
Alternatively, the APP is with the urea phosphate and urea as Material synthesis.
Alternatively, described ammonium magnesium phosphate is generated by magnesia and MAP reaction.
Alternatively, the trace element is the one kind or many in magnesia, white vitriol, ferrous sulfate heptahydrate or borax Kind.
Humic acid complex fertilizer of the present invention has the following technical effect that:
(1) in instant component configuration, with humic acid and azophoska as primary raw material, addition part trace element makes Humic acid is combined with inorganic nutrients, increases can soil aggregate, improve soil permeability, increase soil fertility, repair and Improve crop rhizosphere environment, upgrading synergy is played a part of to crop, crop anti-adversity is improved, increase crop yield and quality.
(2) in instant component configuration, generated with slow release effect by the ammonium phosphate reaction in magnesia and system Ammonium magnesium phosphate, can both adjust product pH, and fertilizer efficiency can be extended again, make the present invention have quick-acting and long-acting features concurrently.
(3) in instant component configuration, urea phosphate is synthesized using urea and phosphoric acid, protects nitrogen ability by force, can either be made rapidly For crop, while also ensuring that the application effect of product, and the effect of fertilizer cycle can also be extended.
(4) in instant component configuration, urea phosphate and urea are adopted for Material synthesis APP, nitrogenous, phosphorus concentration is high, Can slowly hydrolyze in soil so as to release mutually coordinate with plant growth demand, thus improve fertilizer nutrient utilization with Long-acting performance.
(5) in instant component configuration, the trace element of its addition can meet the various demands of crop, phosphoric acid urea With APP chelating, the use of the chelating agent invalid to crop is saved, can both improve utilization rate of fertilizer and getting fat effect, again may be used Cost of material is reduced, utilization rate of fertilizer is improve.
Humic acid composite material prepared by the present invention, each component synergy, can be according to crop nutrition content demand and root of the crop Border environment sustained release nutrient, effectively reduces nitrogen volatilization and soil to phosphorus fixation, can improve crop anti-adversity, and article is made in improvement Matter, increases yield, is especially suitable for field crop and industrial crops are applied.
Present invention also offers the preparation method of above-mentioned humic acid complex fertilizer, comprises the steps:
S1 purchases humic acid, phosphoric acid, urea, magnesia, MAP, potassium chloride and trace element materials, wherein urea Prepared and got the raw materials ready respectively by urea phosphate synthesis, APP synthesis and humic acid complex fertilizer;
S2 prepares urea phosphate:
Phosphoric acid is put into the first reactor equipped with first part of urea, stirring reaction for a period of time, wherein described The mol ratio of a urea and the phosphoric acid is 1:0.90-1.10;
S3 prepares APP:
Urea phosphate prepared by S2 steps puts into cold after mixing for a period of time in the second reactor with second part of urea But, wherein the urea phosphate is 2.0-3.0 with the mol ratio of second part of urea:1;
S3 prepares compound fertilizer:
By the 3rd part of urea melting, potassium chloride is added, fully stir evenly and be transferred in mixing channel, then temperature control will cool down APP, urea phosphate and trace element add in mixing channel stirring reaction for a period of time, then by MAP and magnesia In addition mixing channel, be stirred for reaction a period of time, be eventually adding humic acid, mix, granulate, i.e., prepared humic acid content >= 20%, inorganic nutrients content >=35%, micronutrient levels >=1%, the humic acid composite material of total content of magnesium >=1%.
Alternatively, in step S2, first part of urea and the phosphoric acid are in first reactor in normal pressure Or mix under vacuum condition.
Alternatively, in step S2, the phosphoric acid and first urea are in the first reaction kettle for reaction temperature For 80 DEG C -100 DEG C, the reaction time is 20min-40min, and rotating speed is 200-300r/min during stirring.
Alternatively, in step S3, the urea phosphate and second part of urea are in second reactor in height Carry out under the conditions of temperature, reaction time 2h-3h, 200 DEG C -300 DEG C of reaction temperature, the APP degree of polymerization of preparation is 6- 10。
Alternatively, in step S4, when the 3rd part of urea melting and the potassium chloride are transferred in mixing channel, control Temperature processed is 100-110 DEG C;The APP, the urea phosphate and the trace element add stirring reaction in mixing channel Time is 5-15min, and the time of stirring reaction is 5-15min in the MAP and magnesia addition mixing channel.
In the above-mentioned preparation technology of the present invention, urea phosphate is synthesized by urea with phosphoric acid, preparation process is simple, is saved dereaction and is produced Thing crystallization, dry run, reduce equipment investment and energy consumption, and cost can be greatly reduced;APP is by urea phosphate and urea Synthesis, preparation process can at ambient pressure be carried out, is passed through without the need for ammonia, safe operation, reduce the environment in fertilizer preparation process Pollution, and cost of material is low.The present invention makes full use of the response characteristic between each component when preparing, be conducive to filling for each raw material Divide, uniformly disperse, the effect after finished product is applied has been effectively ensured.
Description of the drawings
Fig. 1 is preparation technology FB(flow block) of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and It is not used in the restriction present invention.
The invention provides a kind of humic acid complex fertilizer, including the raw material of following weight parts:
Humic acid 20-30 parts, urea phosphate 10-20 parts, APP 15-25 parts, ammonium magnesium phosphate 5-15 parts;Trace element 0.1-3 parts, urea 15-25 parts, MAP 3-10 parts, potassium chloride 18-30 parts.
In said components, humic acid have faintly acid, water imbibition, colloidality, adsorptivity, ion exchangeable, complexing and The features such as physiologically active, the physicochemical character in soil can be changed, promote the formation of soil agreegate, adjust P in soil H value, be mitigated Or harm of the alkalescence to soil and plant is eliminated, and soil exchange capacity is improved, it is that good soil is created in plant root growth development Earth condition.Humic acid can promote the activity of enzyme, increase photosynthesis, accelerate the Primary product of various metabolism from cauline leaf or root to fruit The operating of real and seed, makes fruit plentiful, abundant, obtains high yield, high level.The carbon ammonium that humic acid can make reduces the loss of ammonium nitrogen, suppression Antidiuresis enzyme activity move, reduce urea volatilization, improve nitrogenous fertilizer utilization rate, increase Potassium release amount, humic acid can with slightly solubility Trace element form complex compound or chelant thing, integrate trace element, be conducive to root system and Foliage Absorption trace element.
In said components, the urea phosphate be with urea and phosphoric acid as Material synthesis, wherein described urea nitrogen content is high, Easy to use suitable for various soil and plant, the destruction to soil is little, itself and phosphoric acid synthesis urea phosphate, bury i.e. from Solution, protects nitrogen ability by force, can either improve plant morning, the application effect of mid-term, moreover it is possible to extend the effect of fertilizer cycle.
In said components, the APP is the low polymerization degree with urea phosphate and urea described above as Material synthesis High concentration is nitrogenous, phosphatic manure.APP after synthesis contains nitrogen, the two kinds of elements of phosphorus needed for crop growth, and phosphorus content is high Up to 30%~32%, nitrogenous 14%~22%.Its heat endurance and chemical stability are good, and water-soluble and moisture absorption is little, dispersion Property is good, and toxicity is low.Low-polymerization-dammonium ammonium polyphosphate nitrogen and phosphorus content height, pH near neutrals, salt-out temperature are low, good water solubility, in soil In slowly hydrolyse to after orthophosphates, just can be absorbed by plants, and hydrolysis rate increases with the increase of temperature and time so as to Release is mutually coordinated with plant growth demand, thus improves fertilizer nutrient utilization, and make fertilizer effective element have for a long time it Effect, while also have chelation to some metal ions, also can with trace element synergy and be conducive to root system and Foliage Absorption trace element.
In said components, the existing nitrate nitrogen of the MAP has ammonium nitrogen again, and existing water-soluble phosphorus has Chinese holly Soluble phosphorus, contains again There are two kinds of nutrient contents of nitrogen phosphorus, it is adaptable to various crops and soil.
In said components, potassium chloride is used as potash fertilizer, and fertilizer efficiency is fast, can dissolve quickly after being manured into soil, and dissociates immediately, makes office Potassium ion and chlorine ion concentration in portion's soil liquid is significantly improved, and forms concentration gradient, and potassium ion and chlorion start outwards Diffusion, a portion potassium ion is directly absorbed by crop, and cation of the another part on soil colloid is replaced Act on and adsorbed by soil colloid;Chlorion can promote photosynthesis of plant and fiber to be formed.Potassium chloride and fertilizer or phosphate fertilizer Compounding application, can prevent soil acidification, moreover it is possible to promote the validation of phosphorus.
In said components, the trace element is the one kind in magnesia, white vitriol, ferrous sulfate heptahydrate or borax Or it is various.Wherein described magnesia is used as the replenishers of magnesium, and the oil content of plant is greatly improved when working with sulphur simultaneously.And And, magnesia may also participate in the present invention in the synthesis of ammonium magnesium phosphate and conversion process.The white vitriol is used to supplement Crop zinc is micro, strengthens the photosynthesis and respiration of crop, promotes absorption of the crop to nutrients such as N P and Ks.It is described Ferrous sulfate heptahydrate is used to adjust soil acidity or alkalinity, adjusts chloroplast protein, promotes chlorophyll formation, acts as in biological nitrogen fixation With.The borax can be used as nursing one's health the disintegrant of fertiliser granulates, can also change phytohormone activity, promote nutrient growth and reproduction Growth, strengthens control of the cell membrane to moisture, so as to strengthen the cold-resistant and resistance against diseases of plant.Boron and zinc combined adjustable crop Nutrient balance, improve crop environmental ecology relation, improve crop yield and quality.Boron can participate in carbon water in leaf photosynthesis The synthesis of compound, favourable its is conveyed to root;It also helps the synthesis of protein, improves the fixed nitrogen of legume rhizobium Activity, increases amount of nitrogen fixation;Boron can also promote the operating of auxin, improve the resistance of plant.
In said components, the ammonium magnesium phosphate is that above-mentioned raw materials react generation with fusing urea in mixed process.Phosphorus Sour ammonium magnesium contains nitrogen, phosphorus composition, and water is slightly soluble in soil wet environment in water, and its nutrient release rate is slow, and fertilizer efficiency is long, utilizes Height, and do not absorb heavy metal and organic matter substantially in precipitation process, it is a kind of very safe slow-release fertilizer raw material.
Rapid long-acting humic acid composite material of the present invention can meet crop different according to soil regime progressively Releasing nutrient The demand of growth phase;The humic acid of addition can effective improved soil structure, increase soil activation crumb structure, in addition, rotten plant Acid has to urase and nitrification enzyme inhibition, can improve the utilization rate of urea, can reduce soil to phosphorus fixation, can be with Activation slightly solubility potassium, with control nitrogen, steady phosphorus, the effect for protecting potassium.Fertilizer prepared by the present invention can improve crop quality, improve crop Resistance, increases yield, is adapted to field crop and industrial crops are applied.
Referring to Fig. 1, present invention also offers the preparation method of above-mentioned humic acid complex fertilizer, comprises the steps:
S1 purchases humic acid, phosphoric acid, urea, magnesia, MAP, potassium chloride and trace element materials, due to phosphoric acid Urea is that, with urea and phosphoric acid as Material synthesis, APP is the last preparation with the urea phosphate and urea as Material synthesis Also urea raw material is contained, therefore urea need to be prepared by urea phosphate synthesis, APP synthesis and humic acid complex fertilizer and press respectively first Part urea, second part of urea, the 3rd part of urea prepare;
S2 prepares urea phosphate:
The phosphoric acid of 75%-85% is injected to and is had been loaded with the first reactor 1 of first part of urea.In first reactor 1 With vacuum plant and agitating device, the mol ratio of first part of urea and phosphoric acid is 1:0.90-1.10, in normal pressure or vacuum condition Lower mixing, forms phosphoric acid urea solution.Reaction temperature during preparation is 80 DEG C -100 DEG C, and the reaction time is 20min-40min, Rotating speed is 200-300r/min during stirring.After the completion of reaction, phosphoric acid urea solution is deposited in urea phosphate storagetank 4.
In this step, industrial phosphoric acid concentration be 80%-85% can synthesis under normal pressure, industrial phosphoric acid concentration be 75%-80% when Carry out under vacuum, the vacuum arranged in the first reactor 1 is less than 0.6Mpa, is reacted under vacuum, has Beneficial to the generation of reaction, and can during the course of the reaction by moisture evaporation.
S3 prepares APP:
Phosphoric acid urea solution prepared by S2 steps puts into the second reactor 2, under the high temperature conditions again with second part of urea Mix, wherein the mol ratio of urea phosphate and second part of urea is 2.0-3.0:1.It is anti-in the second reactor 2 during preparation 2h-3h between seasonable, 200 DEG C -300 DEG C of reaction temperature, the APP degree of polymerization of preparation is 6-10.After the completion of reaction, input is poly- 100-120 DEG C is cooled in ammonium phosphate cooling tower 3.
S4 prepares compound fertilizer:
3rd part of urea is put into melting device 5, potassium chloride is added, after the 3rd part of urea is melted completely, is transferred to mixed Groove 6 is closed, temperature 100-110 DEG C is controlled, then the APP for having cooled down, urea phosphate and trace element is added in mixing channel 6 Stirring reaction 5-15min, then MAP and magnesia are added in mixing channel 6, it is stirred for reacting 5-15min, it is eventually adding Humic acid, puts into comminutor 7 and granulates after mixing, i.e., obtained humic acid composite material humic acid content >=20%, inorganic nutrients Content >=35%, micronutrient levels >=1%, total content of magnesium >=1%.
In the above-mentioned preparation technology of the present invention, with urea and phosphoric acid as raw material, synthesize urea phosphate;Closed with urea with urea phosphate again Into APP, finally humic acid, magnesia, urea phosphate, APP, potassium chloride etc. are mixed with fusing urea, be prepared into Humic acid composite material containing urea phosphate, APP and ammonium magnesium phosphate.Whole preparation process is simple, eliminates reaction Product crystallization, dry run, reduce equipment investment and energy consumption, and cost can be greatly reduced.Prepare compared to existing polyphosphoric acid The mode of aminating reaction is carried out under HTHP with gaseous ammonia, APP preparation process of the present invention is carried out at ambient pressure, without ammonia Gas is passed through, safe operation, environmental protection, and cost of material is low.Meanwhile, the present invention makes full use of mutually melting between each component when preparing Characteristic is closed, respectively hybrid reaction, is conducive to abundant, the uniform dispersion of each raw material, the effect after finished product is applied has been effectively ensured.
The present invention is further described with reference to embodiment.
Embodiment one:
First, the preparation of urea phosphate:
Mol ratio according to urea and phosphoric acid is 1:1,85% phosphoric acid is added to and is pre-loaded with the first of first part of urea Mix in reactor, keep normal pressure, agitating device rotating speed 300r/min, 85 DEG C of reaction temperature, reaction time 30min.Instead After the completion of answering, phosphoric acid urea solution is deposited in urea phosphate storagetank.
2nd, the preparation of APP:
Mol ratio according to urea and urea phosphate is 1:2, second part of urea and phosphoric acid urea solution are put into the second reactor In, 90min is reacted under conditions of temperature is for 220 DEG C, the APP degree of polymerization of preparation is 8.After the completion of reaction, by polyphosphoric acid 110 DEG C are cooled in ammonium input APP cooling tower.
3rd, the preparation of compound fertilizer:
3rd part of urea 22kg is melted, potassium chloride 18kg is added, mixing channel is transferred to, 110 DEG C of temperature is controlled, will be aforementioned The APP 20kg and urea phosphate 15kg of preparation, and micro- white vitriol 3.6kg, ferrous sulfate heptahydrate 2.4kg, Stirring reaction 10min in mixing channel is added, then 10min will be reacted in MAP 5kg and magnesia 6kg addition mixing channels, most Humic acid 23kg is added afterwards, mixed, granulated, obtain final product and have quick-acting and long-acting humic acid composite materials concurrently.
In the above-mentioned compound fertilizer for preparing, humic acid 20%, inorganic nutrients 41%, trace element 1%, total content of magnesium 3.2%.
Embodiment two:
First, the preparation of urea phosphate:
Mol ratio according to urea and phosphoric acid is 1:0.95,75% phosphoric acid is added to and is pre-loaded with the of first part of urea In one reactor, vacuum 0.5Mpa in control reactor, agitating device rotating speed 250r/min, 90 DEG C of reaction temperature, during reaction Between 35min.
2nd, the preparation of APP:
Mol ratio according to urea and urea phosphate is 1:2.2, second part of urea and phosphoric acid urea solution are mixed in into second anti- In answering kettle, 100min is reacted under the conditions of temperature is for 260 DEG C, the APP degree of polymerization of preparation is 8.After the completion of reaction, will be poly- 100 DEG C are cooled in ammonium phosphate input APP cooling tower.
3rd, the preparation of compound fertilizer:
3rd part of urea 25kg is melted, potassium chloride 30kg is added, mixing channel is transferred to, 105 DEG C of temperature is controlled, will be aforementioned The APP 21kg and urea phosphate 18kg of preparation and micro- white vitriol 4.5kg, ferrous sulfate heptahydrate 3.6kg and Borax 2.5kg adds stirring reaction 10min in mixing channel, then MAP 7kg and magnesia 7kg is added into reaction in mixing channel 10min, is eventually adding humic acid 30kg, mixes, granulates, and obtains final product and has quick-acting and long-acting humic acid composite materials concurrently.
In the above-mentioned compound fertilizer for preparing, humic acid 20%, inorganic nutrients 38%, trace element 1%, total content of magnesium 2.8%..
In sum, the part of the above embodiment of the present invention and the shown only present pre-ferred embodiments of accompanying drawing, can not The present invention is limited to this, under conditions of without departing from marrow of the present invention, any modification that those skilled in the art are made, equivalent are replaced Change and improve, all belong to protection scope of the present invention.

Claims (10)

1. a kind of humic acid complex fertilizer, it is characterised in that including the raw material of following weight parts:
Humic acid 20-30 parts, urea phosphate 10-20 parts, APP 15-25 parts, ammonium magnesium phosphate 5-15 parts, micro- 0.1-3 Part, urea 15-25 parts, MAP 3-10 parts, potassium chloride 18-30 parts.
2. humic acid complex fertilizer as claimed in claim 1, it is characterised in that the urea phosphate is with urea and phosphoric acid as raw material Synthesis.
3. humic acid complex fertilizer as claimed in claim 2, it is characterised in that the APP is with the urea phosphate and urine Element is Material synthesis.
4. humic acid complex fertilizer as claimed in claim 1, it is characterised in that described ammonium magnesium phosphate is by magnesia and phosphoric acid The reaction of one ammonium is generated.
5. the humic acid complex fertilizer as described in any one of claim 1-4, it is characterised in that the trace element is magnesia, One or more in white vitriol, ferrous sulfate heptahydrate or borax.
6. the preparation method of the humic acid complex fertilizer as described in any one of claim 1-5, it is characterised in that including following steps Suddenly:
S1 purchases humic acid, phosphoric acid, urea, magnesia, MAP, potassium chloride and trace element materials, and wherein urea presses phosphorus Sour urea synthesis, APP synthesis and humic acid complex fertilizer are prepared and got the raw materials ready respectively;
S2 prepares urea phosphate:
Phosphoric acid is put into the first reactor equipped with first part of urea, stirring reaction for a period of time, wherein described first part The mol ratio of urea and the phosphoric acid is 1:0.90-1.10;
S3 prepares APP:
Urea phosphate and second part of urea prepared by S2 steps putting into after mix in the second reactor a period of time and cooling down, its Described in the mol ratio of urea phosphate and second part of urea be 2.0-3.0:1;
S4 prepares compound fertilizer:By the 3rd part of urea melting, potassium chloride is added, is fully stirred evenly, be transferred in mixing channel, temperature control, Then the APP for having cooled down, urea phosphate and trace element are added into mixing channel stirring reaction for a period of time, then by phosphoric acid One ammonium and magnesia are added in mixing channel, are stirred for reaction a period of time, are eventually adding humic acid, mixed, are granulated, that is, corruption is obtained Phytic acid content >=20%, inorganic nutrients content >=35%, micronutrient levels >=1%, the humic acid of total content of magnesium >=1% is combined Fertilizer.
7. the preparation method of humic acid complex fertilizer as claimed in claim 6, it is characterised in that in step S2, described A urea and the phosphoric acid are mixed in first reactor under normal pressure or vacuum condition.
8. the preparation method of humic acid complex fertilizer as claimed in claim 6, it is characterised in that in step S2, the phosphorus Sour and described first urea is 80 DEG C -100 DEG C in the first reaction kettle for reaction temperature, and the reaction time is 20min-40min, Rotating speed is 200-300r/min during stirring.
9. the preparation method of humic acid complex fertilizer as claimed in claim 6, it is characterised in that in step S3, the phosphorus Sour urea and second part of urea are carried out under the high temperature conditions in second reactor, reaction time 2h-3h, reaction temperature 200 DEG C -300 DEG C, the APP degree of polymerization of preparation is 6-10.
10. the preparation method of humic acid complex fertilizer as claimed in claim 6, it is characterised in that in step S4, described When three parts of urea meltings and the potassium chloride are transferred in mixing channel, temperature is controlled for 100-110 DEG C;The APP, institute State urea phosphate and the trace element to add the time of stirring reaction in mixing channel be 5-15min, the MAP and described It is 5-15min that magnesia adds the time of stirring reaction in mixing channel.
CN201611122690.3A 2016-12-08 2016-12-08 Humic acid composite fertilizer and preparation method thereof Pending CN106631578A (en)

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Cited By (11)

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CN108117460A (en) * 2018-01-31 2018-06-05 河南博联农业研究院有限公司 A kind of water soluble fertilizer for synergy of losing weight and preparation method thereof
CN108164353A (en) * 2017-12-29 2018-06-15 广东拉多美化肥有限公司 A kind of humic acid potassium ureaformaldehyde composite fertilizer and preparation method thereof
CN108164359A (en) * 2017-12-29 2018-06-15 广东拉多美化肥有限公司 A kind of humic acid Si composite fertilizer and preparation method thereof
CN108424287A (en) * 2018-05-31 2018-08-21 陕西华盛农资有限公司 A kind of ammonium sulfate nitrogenous fertilizer and preparation method thereof
CN108456122A (en) * 2018-04-02 2018-08-28 金正大生态工程集团股份有限公司 One cultivates peanut Special slow release fertilizer and its manufacturing method
CN109134135A (en) * 2018-07-03 2019-01-04 南宁市英德肥业有限责任公司 Application of the magnesia in the adjustment of molasses humic acid type compound fertilizer's pH value
CN111205134A (en) * 2020-01-16 2020-05-29 三峡大学 Preparation method of modified poly-humic acid ammonium phosphate
CN112592242A (en) * 2020-12-22 2021-04-02 张培升 Polymeric phosphorus-oligomerization long-acting fertilizer and production process thereof
CN113354471A (en) * 2021-06-24 2021-09-07 湖北宜施壮农业科技有限公司 Compound fertilizer for flying application and preparation method thereof
CN114605190A (en) * 2022-03-02 2022-06-10 山东农业大学 Method for preparing high-strength polyphosphate granular compound fertilizer by in-situ curing of urea formaldehyde
CN116731414A (en) * 2023-04-13 2023-09-12 上海滩泰科技有限公司 Flame-retardant polymer material

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CN105272477A (en) * 2015-11-17 2016-01-27 深圳市芭田生态工程股份有限公司 Water-soluble ammonium polyphosphate NPK compound fertilizer and preparation method thereof
CN105646036A (en) * 2015-12-31 2016-06-08 王丰登 Method for producing multi-element water-soluble fertilizer
CN105712803A (en) * 2015-12-29 2016-06-29 湖北新洋丰肥业股份有限公司 Triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid and preparation method of triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid

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CN104311236A (en) * 2014-09-28 2015-01-28 成都新柯力化工科技有限公司 Water soluble fertilizer additive as well as preparation method and application thereof
CN105272477A (en) * 2015-11-17 2016-01-27 深圳市芭田生态工程股份有限公司 Water-soluble ammonium polyphosphate NPK compound fertilizer and preparation method thereof
CN105712803A (en) * 2015-12-29 2016-06-29 湖北新洋丰肥业股份有限公司 Triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid and preparation method of triple-nitrogen urea phosphate water-soluble fertilizer containing humic acid
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108164353A (en) * 2017-12-29 2018-06-15 广东拉多美化肥有限公司 A kind of humic acid potassium ureaformaldehyde composite fertilizer and preparation method thereof
CN108164359A (en) * 2017-12-29 2018-06-15 广东拉多美化肥有限公司 A kind of humic acid Si composite fertilizer and preparation method thereof
CN108117460A (en) * 2018-01-31 2018-06-05 河南博联农业研究院有限公司 A kind of water soluble fertilizer for synergy of losing weight and preparation method thereof
CN108456122A (en) * 2018-04-02 2018-08-28 金正大生态工程集团股份有限公司 One cultivates peanut Special slow release fertilizer and its manufacturing method
CN108424287A (en) * 2018-05-31 2018-08-21 陕西华盛农资有限公司 A kind of ammonium sulfate nitrogenous fertilizer and preparation method thereof
CN109134135A (en) * 2018-07-03 2019-01-04 南宁市英德肥业有限责任公司 Application of the magnesia in the adjustment of molasses humic acid type compound fertilizer's pH value
CN111205134A (en) * 2020-01-16 2020-05-29 三峡大学 Preparation method of modified poly-humic acid ammonium phosphate
CN112592242A (en) * 2020-12-22 2021-04-02 张培升 Polymeric phosphorus-oligomerization long-acting fertilizer and production process thereof
CN113354471A (en) * 2021-06-24 2021-09-07 湖北宜施壮农业科技有限公司 Compound fertilizer for flying application and preparation method thereof
CN114605190A (en) * 2022-03-02 2022-06-10 山东农业大学 Method for preparing high-strength polyphosphate granular compound fertilizer by in-situ curing of urea formaldehyde
CN116731414A (en) * 2023-04-13 2023-09-12 上海滩泰科技有限公司 Flame-retardant polymer material

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Application publication date: 20170510