CN108101647A - A kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer - Google Patents
A kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer Download PDFInfo
- Publication number
- CN108101647A CN108101647A CN201711485708.0A CN201711485708A CN108101647A CN 108101647 A CN108101647 A CN 108101647A CN 201711485708 A CN201711485708 A CN 201711485708A CN 108101647 A CN108101647 A CN 108101647A
- Authority
- CN
- China
- Prior art keywords
- parts
- humic acid
- acid potassium
- composite fertilizer
- potassium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
Landscapes
- 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 provides a kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer, includes the following steps：(1) in reaction pot, urea, formaldehyde, humic acid potassium are added in, controls solution ph, controls temperature and reaction time；Overflow is to second order reaction pot after hybrid reaction；It adds in phosphoric acid and adjusts ph, control temperature and material reaction time.(2) in fusion boiler, urea, borax are added in, controls temperature, then slurry is flow in level-one mixing kettle；(3) in level-one mixing kettle, toward slurry in add in potash fertilizer and/or filler material, control temperature, fusant overflow to two level mixing kettle；(4) monoammonium phosphate is added in two level mixing kettle and the reaction product of step (1) obtains melting mixing slurry；(5) melting mixing slurry obtains humic acid potassium ureaformaldehyde composite fertilizer by high tower granulator.The composite fertilizer that the humic acid potassium ureaformaldehyde composite fertilizer preparation method of the present invention obtains is preferable with preferable granule strength, fertilizer efficiency, and is easily achieved continuous production.
Description
Technical field
The invention belongs to composite heat transfer technical fields, are specifically a kind of preparation side of humic acid potassium ureaformaldehyde composite fertilizer
Method.
Background technology
China is fertilizer application big country, and a large amount of uses of chemical fertilizer bring a series of problems, threatens the sustainable of agricultural
Development.What the Ministry of Agriculture in 2015 put into effect《To the year two thousand twenty fertilizer application amount zero growth rate action scheme》Also show to us：It develops
It is a kind of efficient, the necessity of high usage fertilizer.
Slurry has a large amount of gases generations in process of production for the humic-acid kind composite fertilizer of high tower production, and particle is strong after granulating
Degree decline, this finished product is caused to break grain is more, and easy dusting increases hardened risk.Ureaformaldehyde, english abbreviation UF, nineteen fifty-five at first by
BASF is produced, and is the slow-release nitrogen fertilizer of first merchandized handling.Urea reacts generation 1 methylene, 2 urea at high temperature with formaldehyde
With 2 methylene urea, two kinds of colloids, it is added in the raw material of production composite fertilizer, the composite fertilizer produced can also play slow controlled release
Effect.
CN106748329A discloses special ureaformaldehyde stable fertilizer of a kind of rice and preparation method thereof, including following heavy
Measure the raw material of number：360-450 parts of urea, 200-360 parts of monoammonium phosphate, 150-360 parts of potassium chloride, 50-150 parts of formaldehyde are rotten
0.1-15 parts of phytic acid etc. can reduce nutrient loss, extend fertilizer releasing period.But the production process described in the patent application due to
Urea and formaldehyde reaction generation two kinds of colloids of 1 methylene, 2 urea and 2 methylene urea, while urea also can be anti-with monoammonium phosphate
Ammonium polyphosphate should be generated, urea occurs to cause to mix simultaneously with humic acid reaction generation humic acid urine complex compound, these three reactions
Conjunction slot slurry is very sticky, and continuous production is more difficult.
CN103254011A discloses a kind of high tower ureaformaldehyde sustained release fertilizer special for banana high tower ureaformaldehyde sustained release fertilizer special for banana
The urine of urea molten tank is divided into two parts by preparation method, and a part directly removes urine buffer slot, and a part goes ureaformaldehyde to buffer
Slot.Thinner and drop flux are added in ureaformaldehyde dashpot, then passes to ureaformaldehyde reaction pump；It is added in the entrance of ureaformaldehyde reaction pump
The formaldehyde vapour that formaldehyde mass fraction through rectifying column vaporization concentration is 60%-80%, adjustment urine and the molar ratio of formaldehyde vapour exist
Between 1.3-1.5, reaction product removes monoammonium phosphate mixing channel again；Enter potash fertilizer mixing channel in the urine of urine buffer slot, with
Potassium chloride and filler talcum powder from feeding post are sufficiently mixed；Mixing after ten minutes, flows into monoammonium phosphate mixing channel.It should
Preparation method preparation flow is complicated, and the especially condition of adjustment urine and the molar ratio of formaldehyde vapour between 1.3-1.5 is more severe
It carves.
Therefore, compound fertilizer production with tower granulation granule strength how is improved, and can realize the reduction of slurry viscosity, is given birth to beneficial to continuity
Production is the key that the present invention.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of granule strength preferably and is easily achieved quantity-produced
The preparation method of humic acid potassium ureaformaldehyde composite fertilizer.
The present invention provides a kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer, includes the following steps：
(1) in reaction pot, urea, formaldehyde, water and humic acid potassium are added in, it in 6-8 temperature is 50-60 control solution ph
DEG C, when material reaction 0.5-2 is small after, add in phosphoric acid, adjust pH in 2-4, reaction 0.5-2 obtains spare material when small；
(2) in fusion boiler, urea is added in, for control temperature at 110-140 DEG C, the slurry then melted flow to level-one mixing
In pot；
(3) in level-one mixing kettle, toward the slurry of melting in add in potash fertilizer and/or filler material, controlled at 100-125
DEG C, mixed fusant overflow to two level mixing kettle；
(4) add in monoammonium phosphate in two level mixing kettle, the spare material that step (1) obtains, control 90-120 DEG C of temperature,
Obtain melting mixing slurry；
(5) melting mixing slurry is realized by high tower granulator and is granulated, and obtains humic acid potassium ureaformaldehyde composite fertilizer.
Preferably, in step (2), it is additionally added borax.
Preferably, EDTA complex compounds and antifoaming agent are additionally added in step (4).
Preferably, described urea 330-450 parts, 100-350 parts of monoammonium phosphate, 1-780 parts of potash fertilizer, humic acid potassium 10-50
Part, 1-300 parts of filler material, 1-5 parts of EDTA complex compounds, 1-5 parts of antifoaming agent, 2-10 parts of borax, 0.1-1 parts of phosphoric acid, the step
(1) weight ratio of the amount of urea in and amount of urea in step (2) is 1：30-50, preferably.
Preferably, described potash fertilizer 100-780 parts
Preferably, the EDTA complex compounds are EDTA-Zn, EDTA-Fe, EDTA-Cu, EDTA-Mg, EDTA-Mn and EDTA-
One or more of Ca.
Preferably, the formaldehyde is the formalin that mass concentration is 30%-45%.
Preferably, the phosphoric acid is the phosphoric acid solution that mass concentration is 70%-90%.
Preferably, the potassium content of the humic acid potassium is 10%-15%, and humic acid content is counted as 60-70% using butt.
Preferably, the urea nitrogen content is 45%-46.7%, grain size 0.85-2.80mm.
Preferably, the potash fertilizer is potassium chloride and/or potassium sulfate, and the filler material is colorant and/or Paris white.
Preferably, the preparation method of humic acid potassium ureaformaldehyde composite fertilizer, includes the following steps：
(1) in reaction pot, 10-30 parts of urea, 10-30 parts of formaldehyde are added in, then 10-30 parts of water add in 10-30 parts of corruption
POTASSIUM PHYTATE controls solution ph in 7-7.5；The lower steam indirectly heat of stirring is opened, control temperature is at 50-60 DEG C, during material reaction
Between for 0.5-2 it is small when；Overflow is to second order reaction pot after hybrid reaction；It adds in 0.1-1 parts of phosphoric acid and adjusts ph in 3-3.5, control temperature
Degree when the material reaction time is 0.5-2 small, obtains spare material at 50-60 DEG C.
(2) in fusion boiler, 360-430 parts of urea are added in, 2-10 parts of boraxs control temperature to be opened at 125 DEG C -135 DEG C
Stirring is lower to be melted with steam indirectly heat, after pot is full by expects pipe overflow into level-one mixing kettle；
(2) in level-one mixing kettle, toward the slurry of melting in add in 100-700 parts of potassium sulfate and/or potassium chloride, heating is stirred
It mixes, controlled at 100-125 DEG C, mixed fusant overflow to two level mixing kettle；
(3) 100-350 parts of monoammonium phosphate, 1-5 parts of EDTA-Zn, 1-5 parts of antifoaming agent, step are added in two level mixing kettle
(1) reaction product, heating stirring control 90-120 DEG C of temperature, obtain melting mixing slurry under stiring；
(4) mixed melting slurry is completed to be granulated by the dual-axis differential comminutor in high tower, is sent into cooling under material after tower
In machine, cooling air quantity is adjusted with frequency converter, controls 45 DEG C of drop temperature, is sieved, it is compound to obtain humic acid potassium ureaformaldehyde after coating
Fertilizer.
Advantageous effect
The composite fertilizer that the humic acid potassium ureaformaldehyde composite fertilizer preparation method of the present invention obtains has preferable granule strength, fertilizer
Effect is preferable, and is easily achieved continuous production.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to specific embodiment, so that the skill of this field
Art personnel can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
The embodiment of the present invention provides a kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer, includes the following steps：
(1) in reaction pot, urea, formaldehyde, water and humic acid potassium are added in, it in 6-8 temperature is 50-60 control solution ph
DEG C, when material reaction 0.5-2 is small after, add in phosphoric acid, adjust pH in 2-4, reaction 0.5-2 obtains spare material when small；
(2) in fusion boiler, urea is added in, for control temperature at 110-140 DEG C, the slurry then melted flow to level-one mixing
In pot；
(3) in level-one mixing kettle, toward the slurry of melting in add in potash fertilizer and/or filler material, controlled at 100-125
DEG C, mixed fusant overflow to two level mixing kettle；It is physical mixed in level-one mixing kettle, viscosity can meet production requirement.
(4) add in monoammonium phosphate in two level mixing kettle, the spare material that step (1) obtains, control 90-120 DEG C of temperature,
Obtain melting mixing slurry；Step has been adequately mixed before, this step can reduce incorporation time, is avoided because when mixing
Between longer cause slurry viscosity higher.
(5) melting mixing slurry is realized by high tower granulator and is granulated, and obtains humic acid potassium ureaformaldehyde composite fertilizer.
In a preferred embodiment, in step (2), it is additionally added borax.Physiological action of the boron in plant is roughly divided into following
Several respects：Participate in metabolism and transport sugared in crop body；Inhibit the biosynthesis of phenolic compound and lignin；Pollen is promoted to sprout
The growth of hair and pollen tube；Promote the growth and development of seed and fruit；Influence cell division, differentiation, maturation；Participate in plant growth
The metabolism of plain parahormone；Promote intake of the plant to calcium.And step (2) adds in borax can also be further such that slurry viscosity drop
It is low.
In a preferred embodiment, EDTA complex compounds and antifoaming agent are additionally added in step (4).
In a preferred embodiment, urea 330-450 parts, 100-350 parts of monoammonium phosphate, 1-780 parts of potash fertilizer, humic acid potassium
10-50 parts, 1-300 parts of filler material, 1-5 parts of EDTA complex compounds, 1-5 parts of antifoaming agent, 2-10 parts of borax, 0.1-1 parts of phosphoric acid, step
(1) weight ratio of the amount of urea in and amount of urea in step (2) is 1：30-50, in a preferred embodiment.
In a preferred embodiment, EDTA complex compounds for EDTA-Zn, EDTA-Fe, EDTA-Cu, EDTA-Mg, EDTA-Mn and
One or more of EDTA-Ca.
In a preferred embodiment, formaldehyde is the formalin that mass concentration is 30%-45%.
In a preferred embodiment, phosphoric acid is the phosphoric acid solution that mass concentration is 70%-90%.
In a preferred embodiment, the potassium content of humic acid potassium is 10%-15%, and humic acid content is counted as 60- using butt
70%.
In a preferred embodiment, urea nitrogen content 45%-46.7%, grain size 0.85-2.80mm.
In a preferred embodiment, potash fertilizer is potassium chloride and/or potassium sulfate, and filler material is colorant and/or Paris white.
In a preferred embodiment, the preparation method of humic acid potassium ureaformaldehyde composite fertilizer, includes the following steps：
(1) in reaction pot, 10-30 parts of urea, 10-30 parts of formaldehyde are added in, then 10-30 parts of water add in 10-30 parts of corruption
POTASSIUM PHYTATE controls solution ph in 7-7.5；The lower steam indirectly heat of stirring is opened, control temperature is at 50-60 DEG C, during material reaction
Between for 0.5-2 it is small when；Overflow is to second order reaction pot after hybrid reaction；It adds in 0.1-1 parts of phosphoric acid and adjusts ph in 3-3.5, control temperature
Degree when the material reaction time is 0.5-2 small, obtains spare material at 50-60 DEG C.
(2) in fusion boiler, 360-430 parts of urea, 2-10 parts of boraxs are added in, control temperature is opened at 128 DEG C -135 DEG C
Stirring is lower to be melted with steam indirectly heat, after pot is full by expects pipe overflow into level-one mixing kettle；
(3) in level-one mixing kettle, toward the slurry of melting in add in 100-700 parts of potassium sulfate and/or potassium chloride, heating is stirred
It mixes, controlled at 100-125 DEG C, mixed fusant overflow to two level mixing kettle；
(4) 100-350 parts of monoammonium phosphate, 1-5 parts of EDTA-Zn, 1-5 parts of antifoaming agent, step are added in two level mixing kettle
(1) reaction product, heating stirring control 90-120 DEG C of temperature, obtain melting mixing slurry under stiring；
(4) mixed melting slurry is completed to be granulated by the dual-axis differential comminutor in high tower, is sent into cooling under material after tower
In machine, cooling air quantity is adjusted with frequency converter, controls 45 DEG C of drop temperature, is sieved, it is compound to obtain humic acid potassium ureaformaldehyde after coating
Fertilizer.
Embodiment 1
The high tower humic acid potassium ureaformaldehyde composite fertilizer of the present embodiment mainly includes following parts by weight material：Urea: phosphoric acid one
Ammonium: potassium sulfate: humic acid potassium：Formaldehyde：Borax：EDTA-Zn：Phosphoric acid：Antifoaming agent=335：330：310：10：10：2：1.9：:
0.1：1.
High tower humic acid potassium ureaformaldehyde composite fertilizer of the present embodiment and preparation method thereof, comprises the following steps：
(1) in reaction pot, add in 10 parts of urea (urea nitrogen content 46.2%, grain size 0.85-2.80mm), 10 parts
Formaldehyde (formaldehyde is the formalin that mass concentration is 37%), 5 parts of water add in 10 parts of humic acid potassiums and control solution ph in 7-7.5；
The lower steam indirectly heat of stirring is opened, control temperature is at 50-60 DEG C, when the material reaction time about 1 is small；Overflow after hybrid reaction
To second order reaction pot；It adds in 0.1 part of phosphoric acid (85% phosphoric acid solution) and adjusts ph in 3-3.5, control temperature is at 50-60 DEG C, object
When expecting that the reaction time about 1 is small；Material is spare.
(2) in fusion boiler, 335 parts of urea (urea nitrogen content 46%, grain size 0.85-2.80mm), 2 parts of boron are added in
Sand, control temperature are opened and melted under stirring with steam indirectly heat at 132 DEG C, pass through expects pipe nature overflow to level-one after pot is full
In mixing kettle；
(3) in level-one mixing kettle, toward the slurry of melting in add in 310 parts of potassium sulfate (potassium content of potassium sulfate be
52%), heating stirring, controlled at 115 DEG C, mixed fusant nature overflow to two level mixing kettle；
(4) 330 parts of monoammonium phosphate is added in two level mixing kettle, and (nitrogen content of monoammonium phosphate is 10%, phosphorus pentoxide
Content is 50%) 1.9 parts of EDTA-Zn, and 1 part of the reaction product of step (1), antifoaming agent, heating stirring, control is warm under stiring
105 DEG C of degree, obtains melting mixing slurry；
(5) mixed melting slurry is completed to be granulated by the dual-axis differential comminutor in high tower, is sent into cooling under material after tower
In machine.Cooling air quantity is adjusted with frequency converter, controls 45 DEG C of drop temperature.It sieves, high tower humic acid potassium ureaformaldehyde is obtained after coating and is answered
Hefei.
Embodiment 2
The high tower humic acid potassium ureaformaldehyde composite fertilizer of the present embodiment mainly includes following parts by weight material：Urea: phosphoric acid one
Ammonium: potassium sulfate: humic acid potassium：Formaldehyde：Borax：EDTA-Zn：Phosphoric acid：Antifoaming agent 355：300：310：10：20：2：1.9：0.1：
1。
High tower humic acid potassium ureaformaldehyde composite fertilizer of the present embodiment and preparation method thereof, comprises the following steps：
(1) in reaction pot, add in 20 parts of urea (urea nitrogen content 46.2%, grain size 0.85-2.80mm), 20 parts
Formaldehyde (formaldehyde is the formalin that mass concentration is 37%), 10 parts of water add in 10 parts of humic acid potassiums and control solution ph in 7-
7.5；The lower steam indirectly heat of stirring is opened, control temperature is at 50-60 DEG C, when the material reaction time about 1 is small；After hybrid reaction
Overflow is to second order reaction pot；It adds in 0.1 part of phosphoric acid (85% phosphoric acid solution) and adjusts ph in 3-3.5, control temperature is in 50-60
DEG C, when the material reaction time about 1 is small；Material is spare.
(2) in fusion boiler, 335 parts of urea (urea nitrogen content 46%, grain size 0.85-2.80mm), 2 parts of boron are added in
Sand, control temperature are opened and melted under stirring with steam indirectly heat at 132 DEG C, pass through expects pipe nature overflow to level-one after pot is full
In mixing kettle；
(3) in level-one mixing kettle, toward the slurry of melting in add in 310 parts of potassium sulfate (potassium content of potassium sulfate be
52%), heating stirring, controlled at 115 DEG C, mixed fusant nature overflow to two level mixing kettle；
(4) 300 parts of monoammonium phosphate is added in two level mixing kettle, and (nitrogen content of monoammonium phosphate is 10%, phosphorus pentoxide
Content be 50%), 1.9 parts of EDTA-Zn, 1 part of antifoaming agent, the reaction product of step (1), heating stirring, under stiring control temperature
105 DEG C of degree, obtains melting mixing slurry；
(5) mixed melting slurry is completed to be granulated by the dual-axis differential comminutor in high tower, is sent into cooling under material after tower
In machine.Cooling air quantity is adjusted with frequency converter, controls 45 DEG C of drop temperature.It sieves, high tower humic acid potassium ureaformaldehyde is obtained after coating and is answered
Hefei.
Comparative example 1
Compared with Example 1, in comparative example 1, borax is changed into ammonium nitrate phosphorus, remaining composition and ratio and preparation method and implementation
Example 1 is identical.
Comparative example 2
Compared with Example 1, in comparative example 2, amount of urea is adjusted to 670 parts, is added without monoammonium phosphate, remaining composition is matched somebody with somebody
When preparation method is same as Example 1.
Comparative example 3
Compared with Example 1, in comparative example 3, humic acid potassium is added without, remaining composition and ratio and preparation method and embodiment
1 is identical.
Effect example
1. fertilizer is tested
The high tower humic acid potassium urea first that embodiment 1, embodiment 2 and comparative example 1, comparative example 2, comparative example 3 are prepared
Formaldehyde compound fertilizer carries out nitrogen, P elements (in terms of phosphorus pentoxide), the content detection of potassium element (in terms of potassium oxide), Yi Jifei
Expect mean compressive strength test.Concrete outcome is as shown in table 1.
Table 1
2. manuring field trial
Varieties：No. 1 peanut of seaflower.
Test site：Guangdong Nansha experimental plot.
Experimental method：Experiment sets 6 processing altogether, and embodiment 1 is processing 1, and embodiment 2 is processing 2, and comparative example 1 is processing
3, comparative example 2 is processing 4, and comparative example 3 is processing 5, and blank control is processing 6.Each 20 square metres of processing area, field is random
Arrangement, in triplicate.9000 piers of planting density/mu, covering with ground sheeting, other field management are the same as general crop field.In peanut cultivation,
The high tower humic acid potassium ureaformaldehyde composite fertilizer obtained using corresponding embodiment and comparative example is applied as base manure, and blank control is place
Reason 6 does not apply chemical fertilizer.After harvesting peanut, peanut character and yield result are analyzed.Concrete outcome is as shown in table 2.
Table 2
| Processing | 1 | 2 | 3 | 4 | 5 | 6 |
| Stem height (cm) | 45.1 | 44.7 | 43.8 | 43.5 | 43.1 | 35.2 |
| Side shoot grows (cm) | 47.1 | 46.8 | 43.1 | 39.5 | 38.5 | 31.1 |
| Single plant fruit number (a) | 20.4 | 19.7 | 16.1 | 15.4 | 15.8 | 11.2 |
It can be obtained by the data of Tables 1 and 2, the high tower humic acid potassium ureaformaldehyde that embodiment 1 and embodiment 2 are prepared
Composite fertilizer have higher nitrogen, phosphorus potassium content, to crop provide nutritive value it is preferable, crop growing state is preferable, single plant fruit number compared with
It is more.
In comparative example 1, borax is changed into ammonium nitrate phosphorus in preparation process, compared with the scheme using borax, slurry viscosity
It is more more viscous, the nitrogen, phosphorus, potassium content of fertilizer are obtained without too apparent difference, but the growing way of crop and fruit number are all opposite
It is less.Although illustrating that ammonium nitrate phosphorus can reduce the viscosity of slurry in production process, remaining composition is multiple with the present invention program
It is not fine to the effect of crop with obtained fertilizer.
In comparative example 2, amount of urea is adjusted to 670 parts, is added without monoammonium phosphate, although the dosage of urea improves,
It is also relatively bad to the effect of crop.Because while amount of urea adds, but because formaldehyde dosage is less, urea and first
The ureaformaldehyde of aldehyde generation is limited.And monoammonium phosphate is added without, monoammonium phosphate and ureagenetic ammonium polyphosphate is just not present, centainly
In degree, slow release effect is relatively poor, therefore, no to the action time of crop so long.
In comparative example 3, humic acid potassium is added without, it is also relatively bad to the effect of crop.There is no the effect of humic acid, do not have yet
There is humic acid that can urinate complex compound with ureagenetic humic acid, to a certain extent, slow release effect is relatively poor, therefore, to making
The action time of object is without so long.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright description is made directly or indirectly is used in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer, which is characterized in that include the following steps：
(1) in reaction pot, urea, formaldehyde, water and humic acid potassium are added in, it in 6-8 temperature is 50-60 DEG C control solution ph,
After when material reaction 0.5-2 is small, phosphoric acid is added in, pH is adjusted and obtains spare material when small in 2-4, reaction 0.5-2；
(2) in fusion boiler, urea is added in, for control temperature at 110-140 DEG C, the slurry then melted flow to level-one mixing kettle
In；
(3) in level-one mixing kettle, toward the slurry of melting in add in potash fertilizer and/or filler material, controlled at 100-125 DEG C,
Mixed fusant overflow is to two level mixing kettle；
(4) add in monoammonium phosphate in two level mixing kettle, the spare material that step (1) obtains, control 90-120 DEG C of temperature, obtain
Melting mixing slurry；
(5) melting mixing slurry is realized by high tower granulator and is granulated, and obtains humic acid potassium ureaformaldehyde composite fertilizer.
2. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as described in claim 1, which is characterized in that in step (2), also
Add in borax.
3. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as claimed in claim 2, which is characterized in that in step (4) also
Add in EDTA complex compounds and antifoaming agent.
4. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as claimed in claim 3, which is characterized in that the urea 330-
450 parts, 100-350 parts of monoammonium phosphate, 1-780 parts of potash fertilizer, 10-50 parts of humic acid potassium, 1-300 parts of filler material, EDTA complex compounds
1-5 parts, 1-5 parts of antifoaming agent, 2-10 parts of borax, 0.1-1 parts of phosphoric acid, the amount of urea in the step (1) and urine in step (2)
The weight ratio of plain dosage is 1：30-50, it is preferable that described potash fertilizer 100-780 parts.
5. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as claimed in claim 3, which is characterized in that the EDTA complexings
Object is one or more of EDTA-Zn, EDTA-Fe, EDTA-Cu, EDTA-Mg, EDTA-Mn and EDTA-Ca.
6. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as described in claim 1, which is characterized in that the formaldehyde is matter
Measure the formalin that concentration is 30%-45%.
7. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as described in claim 1, which is characterized in that the humic acid potassium
Potassium content for 10%-15%, humic acid content is counted as 60-70% using butt.
8. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as described in claim 1, which is characterized in that the urea is nitrogenous
It measures as 45%-46.7%, grain size 0.85-2.80mm.
9. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as described in claim 1, which is characterized in that the potash fertilizer is chlorine
Change potassium and/or potassium sulfate, the filler material is colorant and/or Paris white.
10. the preparation method of humic acid potassium ureaformaldehyde composite fertilizer as described in claim 1, which is characterized in that including walking as follows
Suddenly：
(1) in reaction pot, 10-30 parts of urea, 10-30 parts of formaldehyde are added in, then 10-30 parts of water add in 10-30 parts of humic acids
Potassium controls solution ph in 7-7.5；The lower steam indirectly heat of stirring is opened, at 50-60 DEG C, the material reaction time is control temperature
When 0.5-2 is small；Overflow is to second order reaction pot after hybrid reaction；It adds in 0.1-1 parts of phosphoric acid and adjusts ph in 3-3.5, control temperature exists
50-60 DEG C, when the material reaction time is 0.5-2 small, obtain spare material.
(2) in fusion boiler, 360-430 parts of urea are added in, 2-10 parts of boraxs control temperature to open stirring at 128 DEG C -135 DEG C
It is lower to be melted with steam indirectly heat, after pot is full by expects pipe overflow into level-one mixing kettle；
(3) in level-one mixing kettle, toward the slurry of melting in add in 100-700 parts of potassium sulfate and/or potassium chloride, heating stirring,
Controlled at 110 DEG C -120 DEG C, mixed fusant overflow to two level mixing kettle；
(4) in two level mixing kettle add in 100-350 parts of monoammonium phosphate, 1-5 parts of EDTA-Zn, step (1) obtain spare material,
1-5 parts of antifoaming agent, heating stirring control 100 DEG C -115 DEG C of temperature, obtain melting mixing slurry under stiring；
(5) mixed melting slurry is completed to be granulated by the dual-axis differential comminutor in high tower, is sent under material after tower in cooler,
Cooling air quantity is adjusted with frequency converter, controls 45 DEG C of drop temperature, is sieved, humic acid potassium ureaformaldehyde composite fertilizer is obtained after coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485708.0A CN108101647A (en) | 2017-12-29 | 2017-12-29 | A kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485708.0A CN108101647A (en) | 2017-12-29 | 2017-12-29 | A kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108101647A true CN108101647A (en) | 2018-06-01 |
Family
ID=62215018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711485708.0A Pending CN108101647A (en) | 2017-12-29 | 2017-12-29 | A kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108101647A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138212A (en) * | 2019-12-27 | 2020-05-12 | 安徽辉隆集团五禾生态肥业有限公司 | Preparation method of compound fertilizer with biological slow release function |
| CN112645764A (en) * | 2020-12-31 | 2021-04-13 | 广东拉多美化肥有限公司 | Fertilizer for improving alkaline soil and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417174A (en) * | 2002-12-11 | 2003-05-14 | 南化集团研究院 | Direct urea solution spraying and pelletizing process of producing composite fertilizer |
| CN1491924A (en) * | 2002-10-25 | 2004-04-28 | 中国科学院沈阳应用生态研究所 | Humic acid long-acting compound fertilizer and its preparing method |
| CN102424616A (en) * | 2011-09-09 | 2012-04-25 | 广东拉多美化肥有限公司 | Full water-soluble urea-based composite fertilizer and preparation method thereof |
| CN103980070A (en) * | 2014-05-10 | 2014-08-13 | 青岛乡润生物科技有限公司 | Synergistic-type special slow release fertilizer for peanut |
| CN104311365A (en) * | 2014-10-16 | 2015-01-28 | 山东普金肥料有限公司 | Humic acid composite fertilizer prepared by process of three-level complexing and high tower and production method thereof |
| CN103254011B (en) * | 2013-05-23 | 2015-02-11 | 史丹利化肥股份有限公司 | High-tower urea-formaldehyde slow-release fertilizer special for bananas and preparation method thereof |
| CN106083409A (en) * | 2016-08-22 | 2016-11-09 | 史丹利化肥当阳有限公司 | One grows cotton special bio slow release compound fertilizer and high tower fused melt granulated production method thereof |
| CN107417370A (en) * | 2017-06-21 | 2017-12-01 | 河北中仁化肥有限公司 | A kind of high tower fulvic acid ureaformaldehyde composite fertilizer preparation technology |
-
2017
- 2017-12-29 CN CN201711485708.0A patent/CN108101647A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491924A (en) * | 2002-10-25 | 2004-04-28 | 中国科学院沈阳应用生态研究所 | Humic acid long-acting compound fertilizer and its preparing method |
| CN1417174A (en) * | 2002-12-11 | 2003-05-14 | 南化集团研究院 | Direct urea solution spraying and pelletizing process of producing composite fertilizer |
| CN102424616A (en) * | 2011-09-09 | 2012-04-25 | 广东拉多美化肥有限公司 | Full water-soluble urea-based composite fertilizer and preparation method thereof |
| CN103254011B (en) * | 2013-05-23 | 2015-02-11 | 史丹利化肥股份有限公司 | High-tower urea-formaldehyde slow-release fertilizer special for bananas and preparation method thereof |
| CN103980070A (en) * | 2014-05-10 | 2014-08-13 | 青岛乡润生物科技有限公司 | Synergistic-type special slow release fertilizer for peanut |
| CN104311365A (en) * | 2014-10-16 | 2015-01-28 | 山东普金肥料有限公司 | Humic acid composite fertilizer prepared by process of three-level complexing and high tower and production method thereof |
| CN106083409A (en) * | 2016-08-22 | 2016-11-09 | 史丹利化肥当阳有限公司 | One grows cotton special bio slow release compound fertilizer and high tower fused melt granulated production method thereof |
| CN107417370A (en) * | 2017-06-21 | 2017-12-01 | 河北中仁化肥有限公司 | A kind of high tower fulvic acid ureaformaldehyde composite fertilizer preparation technology |
Non-Patent Citations (3)
| Title |
|---|
| 刘耀武: "《中药鉴定技术》", 31 January 2017, 中国医药科技出版社 * |
| 庄春等: "氮缓释型直播稻拌种肥配方筛选实验", 《江苏农业科学》 * |
| 涂仕华: "《常用肥料使用手册》", 31 January 2014, 四川科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138212A (en) * | 2019-12-27 | 2020-05-12 | 安徽辉隆集团五禾生态肥业有限公司 | Preparation method of compound fertilizer with biological slow release function |
| CN112645764A (en) * | 2020-12-31 | 2021-04-13 | 广东拉多美化肥有限公司 | Fertilizer for improving alkaline soil and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101318858B (en) | Clear liquid complex fertilizer special for high concentration drip irrigation and method of preparing the same | |
| CN100586903C (en) | Slow release long-acting organic inorganic complex blending fertilizer | |
| CN104496705A (en) | Fulvic acid potassium-containing total-nutrient fertilizer for special purpose of potatoes and production method thereof | |
| CN104230433A (en) | Total-nutrient water-soluble humic-acid-containing fertilizer produced by tower-type melt granulation and production method of total-nutrient water-soluble humic-acid-containing fertilizer | |
| CN105837358A (en) | Water-soluble fertilizer with plant growth regulating function and production method thereof | |
| CN103804092A (en) | Special fertilizer for sugarcane and preparation method of fertilizer | |
| CN106748329A (en) | A kind of special ureaformaldehyde stable fertilizer of paddy rice and preparation method thereof | |
| CN102491856A (en) | Special slow release fertilizer for corn zinc power and preparation method thereof | |
| CN106977278A (en) | Potassium polyphosphate sugarcane slow-release fertilizer and its production method | |
| CN108059537A (en) | A kind of coated compound fertilizer | |
| CN104496706A (en) | Ammonium-aldehyde dually-controlled compound fertilizer and preparation method thereof | |
| CN107162848A (en) | A kind of beach saline land wheat dedicated functionality organic-inorganic controlled-release Blending Fertilizer | |
| CN105693334A (en) | Potassium nitrate co-production tower-type melt micrograin water-soluble fertilizer and preparing method thereof | |
| CN105884513A (en) | Special fertilizer for single-seed precision sowing of peanuts and preparation method of special fertilizer | |
| CN108101647A (en) | A kind of preparation method of humic acid potassium ureaformaldehyde composite fertilizer | |
| CN110698305A (en) | Fulvic acid compound fertilizer suitable for corn planting in northeast region and preparation method thereof | |
| CN108164353A (en) | A kind of humic acid potassium ureaformaldehyde composite fertilizer and preparation method thereof | |
| CN104761342A (en) | Sorghum special-purpose slow release fertilizer containing trace element and preparation method thereof | |
| CN101550343B (en) | Chemical conditioner for improving red soil dry land | |
| CN110759777A (en) | Special liquid compound fertilizer suitable for lateral deep application of rice and preparation method thereof | |
| CN104262060B (en) | Malting barley drip irrigation special fertilizer and preparation thereof and application process | |
| CN106995325A (en) | A kind of special fertilizer for Chinese goosebeery and preparation method thereof | |
| CN105315052A (en) | Special organic and inorganic compound fertilizer for wax gourd | |
| CN111848244A (en) | Fulvic acid type special fertilizer for industrial hemp | |
| CN110028345A (en) | A kind of dedicated solid water-soluble fertilizer of the coptis and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |