CN106631284A - Preparation method of citrate-soluble potassium inorganic compound fertilizer - Google Patents
Preparation method of citrate-soluble potassium inorganic compound fertilizer Download PDFInfo
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- CN106631284A CN106631284A CN201710004811.2A CN201710004811A CN106631284A CN 106631284 A CN106631284 A CN 106631284A CN 201710004811 A CN201710004811 A CN 201710004811A CN 106631284 A CN106631284 A CN 106631284A
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- Prior art keywords
- potassium
- nitric acid
- preparation
- citric
- nitrogen
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
Abstract
The invention discloses a preparation method of a citrate-soluble potassium inorganic compound fertilizer, and relates to the field of fertilizer production. The method comprises the following steps: grinding and sieving potassium-bearing rocks to obtain potassium-bearing rock powder; placing ground potassium-bearing rock powder and nitric acid in a container and continuously stirring to make the potassium-bearing rock powder and nitric acid fully reacted; slowing adding ammonia water to the reacted solution to carry out a neutralization reaction, adjusting the pH value of the solution; drying and naturally cooling a nitrogen-potassium two-element complex obtained after the neutralization reaction; grinding and sieving the dried and cooled nitrogen-potassium two-element complex; fully mixing the ground nitrogen-potassium two-element complex with phosphorus nitrate to obtain the citrate-soluble potassium inorganic compound fertilizer. The composite material prepared in the invention is simple and easily obtained in raw materials, green and environment-friendly, and further simple in preparation method; in addition, the prepared citrate-soluble potassium inorganic compound fertilizer can be directly absorbed and utilized by plants.
Description
Technical field
The present invention relates to field of fertilizer production, more particularly relates to a kind of preparation method of citric-soluble potassium inorganic composite mixed fertilizer.
Background technology
Potassium element is one of three kinds of basic nutrition elements necessary to plant growth, and potassium ion is also in plant each tissue
Most abundant inorganic cation.Potassium is different from nitrogen, P elements, and potassium element is not involved in the organizational composition in plant body, but in enzyme
Activation, protein synthesis, matter transportation and the aspect such as degeneration-resistant play an important role, while potassium element may also act on plant
The transport and the conversion of energy of assimilation products in vivo, and also play an important role in terms of high crop yield and high-quality is maintained.Cause
This Rational Application potash fertilizer can not only improve crop yield, while the quality of crops can also be lifted.
China is much local, usually occurs not potassium application, or the inclined nitrogen phosphorus fertilizer that applies fertilizer in agricultural production, causes agricultural land soil
In various nutrients it is unbalance.Application of potash fertilizer can not cause crop yield to reduce in agricultural production, quality decline, and rationally apply
Entering potash fertilizer can lift utilization rate of the crops to nitrogen phosphorus fertilizer, while effectively improving the yield of crops, and lift farming
Protein, chlorophyll, reduced sugar and ascorbic content in thing, reduce the content of nitrate in crops.During fertilising
While Reasonable potassium application can effectively improve the utilization rate of nitrogen phosphorus fertilizer, can also balance China's agricultural production for a long time and not apply
Potash fertilizer or Shaoshi potash fertilizer cause the present situation of potassium element serious loss in soil.
During but potash fertilizer is directly manured into soil, potassium element can not directly be absorbed by plant, and need that potash fertilizer exists
Long-term mineral conversion is carried out in soil, and conventional citric-soluble potassium is alkalescence, and with when applying, easily solidification phosphorus is first with nitrogen phosphorus fertilizer
Element, reduces the effect of fertilizer.China is a large agricultural country for possessing 1,800,000,000 mu of agriculture plantations, is also main in the world disappearing
Take the country of potash fertilizer, it is extremely urgent that the absorbable potash fertilizer of preparation makes China's agricultural production.
The content of the invention
The present invention provides a kind of preparation method of citric-soluble potassium inorganic composite mixed fertilizer, solves citric-soluble potassium and is manured into soil middle nothing
The problem that method is directly absorbed by plant.
Specifically, the present invention in citric-soluble potassium inorganic composite mixed fertilizer preparation method, comprise the following steps：
Step 1：Raw material prepares, and potassium bearing rock is pulverized and sieved, and obtains potassium bearing rock powder；
Step 2：The potassium bearing rock powder of crushing and nitric acid are placed in container to continuously stir and make potassium bearing rock powder and nitre
Sour fully reaction, wherein, stir speed (S.S.) is 30rpm/min, and the reaction time is the solid-liquid ratio of 5-7h, potassium bearing rock powder and nitric acid
For 1g:2L；
Step 3：Ammoniacal liquor is slowly added in the reacted solution obtained in step 2 and is neutralized reaction, adjust solution
PH value is 6.5-7.5；
Step 4：The nitrogen-potassium binary obtained after neutralization reaction in step 3 element compound is dried and natural cooling；
Step 5：Nitrogen-potassium binary element compound after Drying and cooling is pulverized and sieved；
Step 6：Nitrogen-potassium binary element compound after crushing to be sufficiently mixed obtain citric-soluble potassium inorganic multiple with nitric acid phosphorus
Complex fertilizer, wherein, nitrogen-potassium binary element compound is 1 with the mass ratio of nitric acid phosphorus:1.
Preferably, in step 1, potassium content is 12-18.7% in the potassium bearing rock, and potassium bearing rock crosses 200 mesh after crushing
Sieve.
Preferably, in step 2, the concentration of nitric acid is 4mol/L.
Preferably, in step 3, the concentration of ammoniacal liquor is 17mol/L.
Preferably, in step 4, drying temperature is 105 DEG C, and drying time is 4-6h.
Preferably, in step 5, nitrogen-potassium binary element compound crushed 80 mesh sieves.
Preferably, N content is 26.5%, P in nitric acid phosphorus2O5Content be 11.5%.
In the present invention, preparation method is simple, it is easy to a large amount of to prepare, and obtained citric-soluble potassium inorganic composite mixed fertilizer can be planted
Thing is directly absorbed, and can in time supplement the potassium element required for this season crop, be not required to potash fertilizer carry out in soil it is long-term
Mineral is converted；Obtained citric-soluble potassium inorganic composite mixed fertilizer is neutral fertilizer, will not solidify the P elements in fertilizer, enhances fertilising
Effect；The content of the content of N P and K and total nutrient meets national complex fertilizer in obtained citric-soluble potassium inorganic composite mixed fertilizer
Standard.
Specific embodiment
Below in conjunction with embodiments of the invention, technical scheme is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the enforcement in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of protection of the invention.
Embodiment 1
The preparation method of the citric-soluble potassium inorganic composite mixed fertilizer that the embodiment of the present invention 1 is provided, comprises the following steps：
Step 1：Raw material prepares, and the potassium bearing rock that potassium content is 12% was crushed into 200 mesh sieves, obtains potassium bearing rock powder
End；
Step 2：The potassium bearing rock powder of crushing and nitric acid are placed in container to continuously stir and make potassium bearing rock powder and nitre
Sour fully reaction, wherein, stir speed (S.S.) is 30rpm/min, and the reaction time is 5h, and potassium bearing rock powder is with the solid-liquid ratio of nitric acid
1g:2L；
Step 3：The ammoniacal liquor that concentration is 17mol/L is slowly added in the reacted solution obtained in step 2 to be carried out
And reaction, it is 6.5 to adjust solution ph, when adjusting solution ph, is first adjusted using the ammoniacal liquor of 17mol/L, when pH value connects
When nearly 6.5, it is finely adjusted using the ammoniacal liquor of 0.1mol/L；
Step 4：The nitrogen-potassium binary obtained after neutralization reaction in step 3 element compound is dried and natural cooling, drying temperature
Spend for 105 DEG C, drying time is 4h；
Step 5：Nitrogen-potassium binary element compound after Drying and cooling was crushed into 80 mesh sieves；
Step 6：Nitrogen-potassium binary element compound after crushing to be sufficiently mixed obtain citric-soluble potassium inorganic multiple with nitric acid phosphorus
Complex fertilizer, wherein, nitrogen-potassium binary element compound is 1 with the mass ratio of nitric acid phosphorus:1, N content is 26.5%, P in nitric acid phosphorus2O5Contain
Measure as 11.5%.
The citric-soluble potassium inorganic composite mixed fertilizer for obtaining is measured, as a result as shown in table 1；
The citric-soluble potassium inorganic composite mixed fertilizer of table 1 is measured result
Made after citric-soluble potassium composite fertilizer with potassium breeze using nitric acid and nitrophosphate fertilizer, through determining, nitrogen, potassium total nutrient contain
Measure as 17.78%, wherein N content be 6.12%, K contents be 11.66%.With nitrophosphate fertilizer 1：The nutrient measured after 1 mixing
Value does not change substantially, measures N element, P element, the content of K element and is respectively 15.6%, 5.5%, 5.2%.By determining
Value analysis, the K element in P element and binary compound fertilizer containing nitrogen and potassium in nitrophosphate fertilizer is not fixed in a large number, and still falling within can
With the available nutrient that can be directly absorbed by plant.So can be direct with nitrophosphate fertilizer using nitric acid dissolving citric-soluble potassium
Mixing is applied.
Embodiment 2
The preparation method of the citric-soluble potassium inorganic composite mixed fertilizer that the embodiment of the present invention 2 is provided, comprises the following steps：
Step 1：Raw material prepares, and the potassium bearing rock that potassium content is 15% was crushed into 200 mesh sieves, obtains potassium bearing rock powder
End；
Step 2：The potassium bearing rock powder of crushing and nitric acid are placed in container to continuously stir and make potassium bearing rock powder and nitre
Sour fully reaction, wherein, stir speed (S.S.) is 30rpm/min, and the reaction time is 6h, and potassium bearing rock powder is with the solid-liquid ratio of nitric acid
1g:2L；
Step 3：The ammoniacal liquor that concentration is 17mol/L is slowly added in the reacted solution obtained in step 2 to be carried out
And reaction, it is 7 to adjust solution ph, when adjusting solution ph, is first adjusted using the ammoniacal liquor of 17mol/L, when pH value close 7
When, it is finely adjusted using the ammoniacal liquor of 0.1mol/L；
Step 4：The nitrogen-potassium binary obtained after neutralization reaction in step 3 element compound is dried and natural cooling, drying temperature
Spend for 105 DEG C, drying time is 5h；
Step 5：Nitrogen-potassium binary element compound after Drying and cooling was crushed into 80 mesh sieves；
Step 6：Nitrogen-potassium binary element compound after crushing to be sufficiently mixed obtain citric-soluble potassium inorganic multiple with nitric acid phosphorus
Complex fertilizer, wherein, nitrogen-potassium binary element compound is 1 with the mass ratio of nitric acid phosphorus:1, N content is 26.5%, P in nitric acid phosphorus2O5Contain
Measure as 11.5%.
Jing is determined, N, P in the citric-soluble potassium inorganic composite mixed fertilizer for obtaining2O5And K2The mass ratio of O is 14.5:5.5:5, it is total to support
Point content is the 25% of Chemical Mixed Fertilizer quality, meets the requirement of GB 15063-2001.
Embodiment 3
The preparation method of the citric-soluble potassium inorganic composite mixed fertilizer that the embodiment of the present invention 3 is provided, comprises the following steps：
Step 1：Raw material prepares, and the potassium bearing rock that potassium content is 18.7% was crushed into 200 mesh sieves, obtains potassium bearing rock powder
End；
Step 2：The potassium bearing rock powder of crushing and nitric acid are placed in container to continuously stir and make potassium bearing rock powder and nitre
Sour fully reaction, wherein, stir speed (S.S.) is 30rpm/min, and the reaction time is 7h, and potassium bearing rock powder is with the solid-liquid ratio of nitric acid
1g:2L；
Step 3：The ammoniacal liquor that concentration is 17mol/L is slowly added in the reacted solution obtained in step 2 to be carried out
And reaction, it is 7.5 to adjust solution ph, when adjusting solution ph, is first adjusted using the ammoniacal liquor of 17mol/L, when pH value connects
When nearly 7.5, it is finely adjusted using the ammoniacal liquor of 0.1mol/L；
Step 4：The nitrogen-potassium binary obtained after neutralization reaction in step 3 element compound is dried and natural cooling, drying temperature
Spend for 105 DEG C, drying time is 6h；
Step 5：Nitrogen-potassium binary element compound after Drying and cooling was crushed into 80 mesh sieves；
Step 6：Nitrogen-potassium binary element compound after crushing to be sufficiently mixed obtain citric-soluble potassium inorganic multiple with nitric acid phosphorus
Complex fertilizer, wherein, nitrogen-potassium binary element compound is 1 with the mass ratio of nitric acid phosphorus:1, N content is 26.5%, P in nitric acid phosphorus2O5Contain
Measure as 11.5%.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (7)
1. a kind of preparation method of citric-soluble potassium inorganic composite mixed fertilizer, it is characterised in that comprise the following steps：
Step 1：Raw material prepares, and potassium bearing rock is pulverized and sieved, and obtains potassium bearing rock powder；
Step 2：The potassium bearing rock powder of crushing and nitric acid are placed in container to continuously stir makes potassium bearing rock powder fill with nitric acid
Divide reaction, wherein, stir speed (S.S.) is 30rpm/min, and the reaction time is 5-7h, and potassium bearing rock powder is with the solid-liquid ratio of nitric acid
1g:2L；
Step 3：Ammoniacal liquor is slowly added in the reacted solution obtained in step 2 and is neutralized reaction, adjust solution ph
For 6.5-7.5；
Step 4：The nitrogen-potassium binary obtained after neutralization reaction in step 3 element compound is dried and natural cooling；
Step 5：Nitrogen-potassium binary element compound after Drying and cooling is pulverized and sieved；
Step 6：Nitrogen-potassium binary element compound after crushing is sufficiently mixed with nitric acid phosphorus and obtain citric-soluble potassium inorganic composite mixed fertilizer,
Wherein, nitrogen-potassium binary element compound and the mass ratio of nitric acid phosphorus are 1:1.
2. the preparation method of citric-soluble potassium inorganic composite mixed fertilizer according to claim 1, it is characterised in that described in step 1
Potassium content is 12-18.7% in potassium bearing rock, and potassium bearing rock crosses 200 mesh sieves after crushing.
3. the preparation method of citric-soluble potassium inorganic composite mixed fertilizer according to claim 1, it is characterised in that in step 2, nitric acid
Concentration be 4mol/L.
4. the preparation method of citric-soluble potassium inorganic composite mixed fertilizer according to claim 1, it is characterised in that in step 3, ammoniacal liquor
Concentration be 17mol/L.
5. the preparation method of citric-soluble potassium inorganic composite mixed fertilizer according to claim 1, it is characterised in that in step 4, drying
Temperature is 105 DEG C, and drying time is 4-6h.
6. the preparation method of citric-soluble potassium inorganic composite mixed fertilizer according to claim 1, it is characterised in that in step 5, nitrogen potassium
Was Used compound crushed 80 mesh sieves.
7. the preparation method of citric-soluble potassium inorganic composite mixed fertilizer according to claim 1, it is characterised in that in the nitric acid phosphorus
N content is 26.5%, P2O5Content be 11.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710004811.2A CN106631284A (en) | 2017-01-04 | 2017-01-04 | Preparation method of citrate-soluble potassium inorganic compound fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710004811.2A CN106631284A (en) | 2017-01-04 | 2017-01-04 | Preparation method of citrate-soluble potassium inorganic compound fertilizer |
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ID=58843769
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11247944B2 (en) | 2019-04-12 | 2022-02-15 | Jeffrey Hanson Robbins | Potassium citrate mixture formed from a dry fertilizer and methods thereof |
| US11254619B2 (en) | 2019-04-12 | 2022-02-22 | Jeffrey Hanson Robbins | Dry composition including effervescent agents, biostimulant, and plant nutrient |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850624A (en) * | 2006-05-18 | 2006-10-25 | 武汉工程大学 | Method for decomposing potash feldspar ore by low temperature wet process |
| CN100999423A (en) * | 2006-12-31 | 2007-07-18 | 合肥工业大学 | Method of preparing nitrogen phosphorus potassium complex fertilizer using potash feldspar |
| CN102432367A (en) * | 2011-09-21 | 2012-05-02 | 安徽华岳矿物材料有限公司 | Method for preparing mineral potash fertilizer with potassium feldspar |
| CN102775219A (en) * | 2012-08-21 | 2012-11-14 | 中国科学院青海盐湖研究所 | Method for preparing nitrogen-phosphorus-potassium compound fertilizer from biotite |
| CN103570410A (en) * | 2012-07-22 | 2014-02-12 | 郑州大学 | Method for one-step-method preparation of nitrogen-phosphorus-potassium composite fertilizer by using potash feldspar |
| CN105732154A (en) * | 2016-01-11 | 2016-07-06 | 武汉工程大学 | Method for preparing potassium fertilizer from potassium feldspar |
-
2017
- 2017-01-04 CN CN201710004811.2A patent/CN106631284A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1850624A (en) * | 2006-05-18 | 2006-10-25 | 武汉工程大学 | Method for decomposing potash feldspar ore by low temperature wet process |
| CN100999423A (en) * | 2006-12-31 | 2007-07-18 | 合肥工业大学 | Method of preparing nitrogen phosphorus potassium complex fertilizer using potash feldspar |
| CN102432367A (en) * | 2011-09-21 | 2012-05-02 | 安徽华岳矿物材料有限公司 | Method for preparing mineral potash fertilizer with potassium feldspar |
| CN103570410A (en) * | 2012-07-22 | 2014-02-12 | 郑州大学 | Method for one-step-method preparation of nitrogen-phosphorus-potassium composite fertilizer by using potash feldspar |
| CN102775219A (en) * | 2012-08-21 | 2012-11-14 | 中国科学院青海盐湖研究所 | Method for preparing nitrogen-phosphorus-potassium compound fertilizer from biotite |
| CN105732154A (en) * | 2016-01-11 | 2016-07-06 | 武汉工程大学 | Method for preparing potassium fertilizer from potassium feldspar |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11247944B2 (en) | 2019-04-12 | 2022-02-15 | Jeffrey Hanson Robbins | Potassium citrate mixture formed from a dry fertilizer and methods thereof |
| US11254619B2 (en) | 2019-04-12 | 2022-02-22 | Jeffrey Hanson Robbins | Dry composition including effervescent agents, biostimulant, and plant nutrient |
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