CN107082653A - A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer - Google Patents
A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer Download PDFInfo
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- CN107082653A CN107082653A CN201710341944.9A CN201710341944A CN107082653A CN 107082653 A CN107082653 A CN 107082653A CN 201710341944 A CN201710341944 A CN 201710341944A CN 107082653 A CN107082653 A CN 107082653A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
- C05G5/23—Solutions
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Abstract
The invention belongs to fertilizer preparing technical field, specially a kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer.This method is 1 by using mass ratio：After 1.0~2.5 calcium and magnesium mud and salpeter solution mixing, 1~5h being reacted in atmospheric conditions, reaction system pH is adjusted to neutrality, then filtered, filtrate is rich in Ca2+、Mg2+Settled solution, i.e. high concentration moderate-element Liquid Fertilizer.The materials such as urea, potassium nitrate, amino acid, humic acid, plant growth regulation and various trace elements can be added in moderate-element Liquid Fertilizer produced by the present invention again in addition, to improve soil texture and provide the various nutritional ingredients that crops need.Present invention process is simple, energy consumption is low, small investment, added value of product high, provides a kind of cheap raw material source rich and easy to get while being produced for Liquid Fertilizer, is utilized, turned waste into wealth with the comprehensive high-efficiency for reaching resource.
Description
Technical field
It is specially that one kind is that raw material prepares moderate-element liquid using calcium and magnesium mud the invention belongs to fertilizer preparing technical field
The method of fertilizer.
Background technology
China turns into world's salt, alkali (NaCl, NaSO now4, NaOH and Na2CO3Deng) big producer, the product such as salt, alkali
Very important effect is played in national economy.Such production using the inorganic salt solution such as bittern or glass gall as raw material, but
Contain Ca in bittern and glass gall2+、Mg2+Deng impurity, it is necessary to remove Ca by purification technique2+、Mg2+, purify in the salt slurry produced
Except containing Mg (OH)2And CaCO3Outside, also containing micro Fe (OH)3、Al(OH)3、SiO2、NaCl、NaSO4And BaSO4Etc. miscellaneous
Matter, if arbitrarily stacking and jettisoning, can cause severe contamination to environment.Waste residue produced by bittern purifying two-stage reaction is referred to as
For calcium and magnesium mud, also known as salt slurry.At present, salt slurry has been applied to multiple fields, and its comprehensive utilization mainly has following several ways：
(1) producing building gypsum
Calcium method removes SO4 2+Obtained salt slurry is changed into semi-hydrated gypsum, semi-hydrated gypsum warp through air-dried, low temperature calcination, dehydration
The plaster of Paris of air-setting gel rubber material is made in levigate sieve.
(2) producing building coating
When manufacturing building coating, salt Water warfare needs to increase on former Process ba- sis salt solution except iron and secondary filter, first uses
Barium chloride removes sulfate, and then processing obtains calcium and magnesium mud, and the calcium and magnesium mud and titanium dioxide, lithopone etc., which do filler, can prepare respectively
Plant coating.
(3) producing building insulating brick
Using materials such as salt slurry, flyash and curing agent, the technique such as agitated, injection forming, drying, can be made into it is civilian and
Industrial building insulating brick.
(4) cement processed
Mix, grind, sieve with lime stone after calcium and magnesium mud is dried, can be added to as filler in cement.
(5) Sulphuric acid magnesium, barium sulfate, magnesia and calcium chloride
Using different process, each composition in salt slurry is separated, magnesium sulfate, barium sulfate, magnesia and chlorine is respectively obtained
Change the materials such as calcium, available for filler and insulation material of multiple fields etc..
(6) salt slurry re-injection
Salt slurry is dissolved in water into suspension, the waste and old salt well depths for adopting halogen device is recycled into by high-pressure pump.
(7) additive processed
DWSW solution additive, additive for sulfur capture and additive for fire coal etc. can be made in salt slurry.
Although salt slurry has a variety of different processing modes and extensive purposes, it is mostly used on construction material,
Manufacturing process high energy consumption, added value of product is low.When being used for manufacture high value added product, complex process, cost is high, economic value
Small, salt slurry utilization rate is low.
Liquid fertilizer is a kind of typical high concentration fertilizer, and its outward appearance is in fluid state, complete with nutrient content height, nutrition
Face, water-soluble high, dissolution velocity is fast, impurity is few, fertilizer efficiency is fast, absorptivity is high, easy to use, multifunction the features such as.Liquid Fertilizer
The simple production process of material, to the less demanding of raw material, without process, therefore the liquid such as being dried, granulating, dry and sieve
The investment of body fertilizer factory is only equivalent to the 50% of same size solid fertilizer factory.Liquid fertilizer in process of production, no powder
Dirt and smog, reduce pollution of the production to environment, reduce the cost of investment of cleaning equipment.Liquid fertilizer is with solution or outstanding
The state of supernatant liquid is present, the organic materials of the very convenient easy moisture absorption of addition, such as amino acid, fulvic acid, marine algae extract, chelating
Trace element, auxiliary agent of state etc..Agricultural chemicals, plant growth regulator, rare earth etc. can also be added, is good a carrier, phase
Used after mutual compatibility, it is easy to development functionality fertilizer, it is time saving and energy saving.And formula is easily adjusted, nutrient is uniformly single, and quality is steady
It is fixed, it is easy to precision fertilizing.
Moderate-element Liquid Fertilizer mainly contains Ca2+、Mg2+, Ca2+Source be usually calcium nitrate, calcium carbonate, calcium hydroxide and
Calcium oxide, Mg2+Source is usually magnesium nitrate, magnesium carbonate, magnesium sulfate and magnesia, if using calcium nitrate or magnesium nitrate as raw material,
Although dissolution of raw material degree is big, it can be prepared into the Liquid Fertilizer of high concentration, raw material and contain mass crystallization water, active constituent content
It is low, cause cost of material high, product economy value is small.If with calcium carbonate, calcium hydroxide, calcium oxide, magnesium carbonate, magnesium sulfate and
The materials such as magnesia are raw material, and because above-mentioned substance solubility is smaller, the usual concentration of the Liquid Fertilizer being prepared into is low, even if being prepared into
The high suspended Liquid Fertilizer of concentration, but suspended liquid system easily produces precipitated and separated, it is necessary to add the auxiliary agents such as dispersant in order to avoid being layered,
This measure can increase production cost again.So, raw material is selected to the wide variety of bottlenecks of moderate-element Liquid Fertilizer.
The content of the invention
The technical problems to be solved by the invention are that there is provided one kind according to existing various calcium and magnesium salt slurry Land use systems not enough
It is the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud.This method technique is simple, energy consumption is low, small investment, product are attached
Value added height, a kind of cheap raw material source rich and easy to get is provided while being produced for Liquid Fertilizer, to reach the comprehensive high-efficiency profit of resource
With turning waste into wealth.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer, and it comprises the following steps：
(1) the calcium and magnesium mud and concentration of metering are mixed for 30~98wt% nitric acid under atmospheric agitation, calcium and magnesium mud and nitric acid
Mass ratio be 1：1.0~2.5,1~5h is reacted, is obtained containing Ca2+、Mg2+Turbid solution；Reaction terminates rear mixed system
It is aobvious neutral or acid, to make the reaction of calcium and magnesium mud complete, increase operation rate, the aobvious acid of mixed system at the end of the preferred reaction of the step
Property.
Reactor band cooling device used in calcium and magnesium mud and nitric acid hybrid reaction, absorbing reaction liberated heat keeps anti-
Temperature is answered to be not higher than 60 DEG C, in case temperature is too high to cause nitric acid effusion loss.
(2) pH value of solution that detection (1) is prepared, if the aobvious acidity of solution, is adjusted with alkaline matter to neutrality；It must hang
Turbid solution.Described alkaline matter can be alkali, basic anhydride, NH3, one kind in the material such as organic amine and acylate or
Several, the step is preferably neutralized with ammoniacal liquor.
(3) suspension solution made from step (2) is sent into filter with delivery pump to be filtered, obtains settled solution, i.e.,
To contain Ca2+、Mg2+Moderate-element Liquid Fertilizer.Contain Ca in the moderate-element Liquid Fertilizer2+、Mg2+One or two, and total amount
Not less than 100g/L.
Calcium and magnesium mud moisture is no more than 50wt%, if moisture too high levels in calcium and magnesium mud, the Liquid Fertilizer concentration of preparation
The Ca of national requirements is not just reached2+、Mg2+Content >=100g/L standard.
The technique also includes step (4), according to the nutrient demand of user's soil regime and different crops, in dosage bunker
The urea of metering, potassium nitrate, amino acid, humic acid, plant growth regulation and various micro- are added into moderate-element Liquid Fertilizer
One or more in the materials such as secondary element, be prepared into can pour, drip irrigation and spray functional liquid fertilizer, be customer volume body
The many nutrient liquid fertilizer of various high concentration and high efficiencies are customized to, finished product storage tank storage is then pumped into conveying.
Nitric acid is slightly excessive in the reaction, if nitric acid addition is few, and the reaction of calcium and magnesium mud is incomplete, and reaction residues are more；Such as
Fruit nitric acid is excessively too many, and post processing needs the amount for adding ammoniacal liquor also accordingly to increase, and generates ammonium nitrate.If necessary to supplement nitrogen member
Element, ammonium nitrate solution, urea or urine nitre solution can be directly added thereto.
The positive effect of the present invention is embodied in：
(1), the calcium and magnesium mud of by-product in bittern and glass gall subtractive process is converted into the moderate-element of high added value by this method
Liquid Fertilizer, shortens the stacking cycle that above-mentioned industry is given up solid, reduces useless solid stacking place, reduces useless solid handling
With.
(2), produced for Liquid Fertilizer and provide cheap raw material source rich and easy to get, significantly reduced Liquid Fertilizer and be produced into
This, is truly realized comprehensive utilization of resources, turns waste into wealth.
(3), this method technique is simple, energy consumption is low, small investment, added value of product high.
Brief description of the drawings
It in the present invention using calcium and magnesium mud is the process chart that raw material prepares moderate-element Liquid Fertilizer that Fig. 1, which is,.
Embodiment
The method in the present invention is described in detail with reference to specific embodiment.
Embodiment 1
A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer, is comprised the following steps that：
(1) moisture content 17.6wt% calcium and magnesium mud 5000kg is first added in reactor, stirring is lower to use measuring pump to reactor
Interior addition 10000kg concentration is 40wt% nitric acid, controls flow, and 2.5h is added and finished, and reacting kettle jacketing leads to cooling water temperature,
It is 30 DEG C to keep reaction temperature, terminates after reaction 4h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
(2) pH of suspension=1.26 obtained in testing procedure (1), the ammoniacal liquor for adding 1+1 under stirring into suspension is adjusted
Save pH=6.75；The ammoniacal liquor mixes for the concentrated ammonia liquor and the water of 1 volume of 1 volume.
Its reaction equation is as follows：
NH3+HNO3===NH4NO3
(3) it will be adjusted with delivery pump and deliver to filter to neutral suspension and filtered, and obtained 13570kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.
(4) the moderate-element Liquid Fertilizer feeding finished product storage tank of preparation is stored by finished product delivery pump.Measure the Liquid Fertilizer ratio
Weight is 1.32g/ml, wherein Ca2+Content >=120g/L, Mg2+Content >=20g/L, nitrate nitrogen content >=110g/L.
Embodiment 2
(1) moisture content 17.6wt% calcium and magnesium mud 5000kg is first added in reactor, stirring is lower to use measuring pump to reactor
Interior addition 8000kg concentration is 40wt% nitric acid, controls flow, and 2.5h is added and finished, and reacting kettle jacketing leads to cooling water temperature,
It is 30 DEG C to keep reaction temperature, terminates after reaction 4h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
(2) pH of suspension=7.02 obtained in testing procedure (1), close to neutrality, it is not necessary to adjust pH；
(3) it will be adjusted with delivery pump and deliver to filter to neutral suspension and filtered, and obtained 10620kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.Filter residue weight is 1620kg, not reaction completely.
(4) the moderate-element Liquid Fertilizer feeding finished product storage tank of preparation is stored by finished product delivery pump.Measure the Liquid Fertilizer ratio
Weight is 1.30g/ml, wherein Ca2+Content >=120g/L, Mg2+Content >=20g/L, nitrate nitrogen content >=110g/L.
Embodiment 3
(1) moisture content 17.6wt% calcium and magnesium mud 5000kg is first added in reactor, stirring is lower to use measuring pump to reactor
Interior addition 14000kg concentration is 40wt% nitric acid, controls flow, and 2.5h is added and finished, and reacting kettle jacketing leads to cooling water temperature,
It is 30 DEG C to keep reaction temperature, terminates after reaction 4h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
(2) pH of suspension=- 4.30 obtained in testing procedure (1), the ammoniacal liquor for adding 1+1 under stirring into suspension is adjusted
Save pH=6.84.
Its reaction equation is as follows：
NH3+HNO3===NH4NO3
(3) it will be adjusted with delivery pump and deliver to filter to neutral suspension and filtered, and obtained 17670kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.
(4) the moderate-element Liquid Fertilizer feeding finished product storage tank of preparation is stored by finished product delivery pump.Measure the Liquid Fertilizer ratio
Weight is 1.24g/ml, wherein Ca2+Content >=110g/L, Mg2+Content >=15g/L, nitrate nitrogen content >=100g/L.In the operation
Nitric acid amount is very few, and part calcium and magnesium unreacted, cause Ca in Liquid Fertilizer in calcium and magnesium mud2+、Mg2+Content is reduced.
Embodiment 4
(1) moisture content 17.6wt% calcium and magnesium mud 5000kg is first added in reactor, stirring is lower to use measuring pump to reactor
Interior addition 10000kg concentration is 40wt% nitric acid, controls flow, and 0.5h is added and finished, and reacting kettle jacketing leads to cooling water temperature,
It is 70 DEG C to keep reaction temperature, terminates after reaction 2h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
(2) pH of suspension=4.30 obtained in testing procedure (1), the ammoniacal liquor for adding 1+1 under stirring into suspension is adjusted
Save pH=6.95.
Its reaction equation is as follows：
NH3+HNO3===NH4NO3
(3) it will be adjusted with delivery pump and deliver to filter to neutral suspension and filtered, and obtained 13380kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.
(4) the moderate-element Liquid Fertilizer feeding finished product storage tank of preparation is stored by finished product delivery pump.Measure the Liquid Fertilizer ratio
Weight is 1.30g/ml, wherein Ca2+Content >=120g/L, Mg2+Content >=20g/L, nitrate nitrogen content >=100g/L, due to reaction
Temperature is too high, nitric acid volatilization loss, causes nitrate nitrogen content in Liquid Fertilizer to reduce.
Embodiment 5
A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer, is comprised the following steps that：
(1) moisture content 17.6wt% calcium and magnesium mud 5000kg is first added in reactor, stirring is lower to use measuring pump to reactor
Interior addition 7000kg concentration is 65wt% nitric acid, controls flow, and 2h is added and finished, and reacting kettle jacketing leads to cooling water temperature, is protected
Reaction temperature is held for 40 DEG C, terminates after reaction 4h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
(2) pH of suspension=- 0.34 obtained in testing procedure (1), the ammoniacal liquor for adding 1+1 under stirring into suspension is adjusted
Save pH=6.92.
Its reaction equation is as follows：
NH3+HNO3===NH4NO3
(3) it will be adjusted with delivery pump and deliver to filter to neutral suspension and filtered, and obtained 10530kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.
(4) addition 50kg fulvic acids and 1000kg urinate in the moderate-element Liquid Fertilizer obtained in dosage bunker to step (3)
Element, is made the rapid long-acting Liquid Fertilizer with improved soil structure, promotion crops physiological metabolism, is pumped into by finished product conveying
Product storage tank is stored.The Liquid Fertilizer proportion is measured for 1.58g/ml, wherein Ca2+Content >=150g/L, Mg2+Content >=30g/L, nitre
State nitrogen content >=140g/L, acyl state nitrogen content >=60g/L.
Embodiment 6
A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer, is comprised the following steps that：
(1) moisture content 17.6wt% calcium and magnesium mud 5000kg is first added in reactor, stirring is lower to use measuring pump to reactor
Interior addition 7000kg concentration is 68wt% nitric acid, controls flow, and 1h is added and finished, and reacting kettle jacketing leads to cooling water temperature, is protected
Reaction temperature is held for 60 DEG C, terminates after reaction 2h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
(2) pH of suspension=5.57 obtained in testing procedure (1), the ammoniacal liquor for adding 1+1 under stirring into suspension is adjusted
Save pH=6.90.
Its reaction equation is as follows：
NH3+HNO3===NH4NO3
(3) it will be adjusted with delivery pump and deliver to filter to neutral suspension and filtered, and obtained 10380kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.
(4) 50kg potassium humates are added in the moderate-element Liquid Fertilizer obtained in dosage bunker to step (3), being made has
Improved soil structure, the quick-acting Liquid Fertilizers for promoting crops physiological metabolism, finished product storage tank storage is pumped into by finished product conveying.Measure
The Liquid Fertilizer proportion is 1.50g/ml, wherein Ca2+Content >=150g/L, Mg2+Content >=30g/L, nitrate nitrogen content >=130g/
L。
Embodiment 7：
A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer, is comprised the following steps that：
(1) moisture content 20wt% calcium and magnesium mud 5000kg, magnesium hydroxide 560kg is first added in reactor, is used tricks under stirring
Amount pump adds the nitric acid that 9000kg concentration is 55wt% into reactor, and 1.5h is added and finished, and reacting kettle jacketing leads to cooling water drop
Temperature, it is 45 DEG C to keep reaction temperature, terminates after reaction 3h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
(2) pH of suspension=0.56 obtained in testing procedure (1), 1+1 ammoniacal liquor regulation pH=is added into suspension
6.87；
Its reaction equation is as follows：
NH3+HNO3===NH4NO3
(3) it will be adjusted with delivery pump and deliver to filter to neutral suspension and filtered, and obtained 13260kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.
(4) 130kg boric acid, 150kg sulfuric acid are added in the moderate-element Liquid Fertilizer obtained in dosage bunker to step (3)
Zinc, 30kg cupric sulfate pentahydrates, 70kg manganese sulfate monohydrates and 15kg ammonium molybdates, are made the Liquid Fertilizer containing various trace elements, by into
Product conveying is pumped into finished product storage tank storage.The Liquid Fertilizer proportion is measured for 1.46g/ml, wherein Ca2+Content >=120g/L, Mg2+
Content >=50g/L, nitrate nitrogen content >=120g/L.
Embodiment 8：
A kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer, is comprised the following steps that：
(1) moisture content 15wt% calcium and magnesium mud 5000kg, calcium hydroxide 700kg is first added in reactor, is used tricks under stirring
Amount pump adds the nitric acid that 9000kg concentration is 68% into reactor, and 2.5h is added and finished, and reacting kettle jacketing leads to cooling water temperature,
It is 35 DEG C to keep reaction temperature, terminates after reaction 5h, obtains the suspension of muddiness；
Its reaction equation is as follows：
Mg(OH)2+2HNO3===Mg (NO3)2+2H2O
CaCO3+2HNO3===Ca (NO3)2+2H2O+CO2↑
Ca(OH)2+2HNO3===Ca (NO3)2+2H2O
(2) pH of suspension=0.21 obtained in testing procedure (1), 30wt% KOH solution is added into suspension, is adjusted
Save pH=7.00；
Its reaction equation is as follows：
KOH+HNO3===KNO3+H2O
(3) it will be adjusted with delivery pump and be delivered to filter to neutral suspension and filtered, and obtained 14830kg clarifications and filter
Liquid, as moderate-element Liquid Fertilizer.
(4) 20kg gibberellin and 20kg Yin are added in the moderate-element Liquid Fertilizer obtained in dosage bunker into step (3)
Indolylbutyric acid, is made the Liquid Fertilizer containing plant modifying agent, and finished product storage tank storage is pumped into by finished product conveying.Measure the Liquid Fertilizer ratio
Weight is 1.62g/ml, wherein Ca2+Content >=180g/L, Mg2+Content >=30g/L, nitrate nitrogen content >=150g/L.
Obviously, above-described embodiment is only intended to clearly illustrate the content example, and not to embodiment
Restriction.For those of ordinary skill in the field, other not similar shapes can also be made on the basis of the above description
The change or variation of formula, there is no necessity and possibility to exhaust all the enbodiments, and thus extend out it is obvious
Among change or variation are still in the protection domain of the invention.
Claims (8)
1. a kind of utilization calcium and magnesium mud is the method that raw material prepares moderate-element Liquid Fertilizer, it is characterised in that comprised the following steps：
（1）The calcium and magnesium mud and concentration after metering are mixed for 30~98wt% nitric acid under atmospheric agitation, the matter of calcium and magnesium mud and nitric acid
Amount is than being 1：1.0~2.5,1~5h is reacted, is obtained containing Ca2+、Mg2+Turbid solution；
（2）Detecting step（1）The pH value of solution prepared, if the aobvious acidity of solution, is adjusted to neutrality with alkaline matter, obtain suspended
Solution；
（3）With reaction solution delivery pump by step（2）The suspension solution prepared is filtered, and is obtained settled solution, is as contained
There is Ca2+、Mg2+Moderate-element Liquid Fertilizer.
2. it is according to claim 1 the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud, it is characterised in that：Should
Technique also includes step（4）, according to the nutrient demand of user's soil regime and different crops, add into moderate-element Liquid Fertilizer
Plus metering urea, potassium nitrate, amino acid, humic acid, plant growth regulation and trace element in any one or a few
Mixture, various high concentration and high efficiencies many nutrient liquids fertilizer is made, finished product storage tank storage is delivered to delivery pump.
3. it is according to claim 1 the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud, it is characterised in that：Step
Suddenly（1）In calcium and magnesium mud moisture be no more than 50wt%.
4. it is according to claim 1 the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud, it is characterised in that：Step
Suddenly（1）The reactor of middle calcium and magnesium mud and nitric acid mixing carries cooling device, and absorbing reaction liberated heat keeps reaction temperature not
Higher than 60 DEG C.
5. it is according to claim 1 the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud, it is characterised in that：Step
Suddenly（2）In used alkaline matter be alkali, basic anhydride, NH3, in organic amine and acylate any one or a few
Mixture.
6. it is according to claim 5 the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud, it is characterised in that：
Step（2）In used alkaline matter be ammoniacal liquor.
7. it is according to claim 1 the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud, it is characterised in that：Step
Suddenly（3）Contain Ca in middle moderate-element Liquid Fertilizer2+And Mg2+Any one or two kinds, and total content is not less than 100g/L.
8. it is according to claim 2 the method that raw material prepares moderate-element Liquid Fertilizer using calcium and magnesium mud, it is characterised in that：System
It is standby into many nutrient liquids fertilizer of high concentration and high efficiency pass through pour, drip irrigation and the method that sprays are applied.
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| CN109850898A (en) * | 2019-02-20 | 2019-06-07 | 胡芳 | A kind of chlor-alkali industry salt slurry resource technology |
| CN111170782A (en) * | 2020-01-21 | 2020-05-19 | 广西田东曙光科技有限公司 | Preparation method of selenium-rich liquid fertilizer |
| CN112125725A (en) * | 2020-09-07 | 2020-12-25 | 山东聊城鲁西硝基复肥有限公司 | System and method for producing secondary element water-soluble fertilizer by using sewage treatment filter residues and application |
| CN114436552A (en) * | 2022-03-04 | 2022-05-06 | 北京润鸣环境科技有限公司 | Method for chemically conditioning chloride-containing salt mud |
| CN115594528A (en) * | 2022-08-26 | 2023-01-13 | 关祥瑞（Cn） | Method and equipment for preparing composite amino acid calcium magnesium chelating solution by using ammonia-soda alkaline residue |
| CN115594862A (en) * | 2022-08-26 | 2023-01-13 | 关祥瑞（Cn） | Method and equipment for preparing humic acid calcium magnesium chelating liquid by using ammonia-soda alkaline residue |
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| CN109850898A (en) * | 2019-02-20 | 2019-06-07 | 胡芳 | A kind of chlor-alkali industry salt slurry resource technology |
| CN111170782A (en) * | 2020-01-21 | 2020-05-19 | 广西田东曙光科技有限公司 | Preparation method of selenium-rich liquid fertilizer |
| CN112125725A (en) * | 2020-09-07 | 2020-12-25 | 山东聊城鲁西硝基复肥有限公司 | System and method for producing secondary element water-soluble fertilizer by using sewage treatment filter residues and application |
| CN114436552A (en) * | 2022-03-04 | 2022-05-06 | 北京润鸣环境科技有限公司 | Method for chemically conditioning chloride-containing salt mud |
| CN114436552B (en) * | 2022-03-04 | 2022-10-11 | 北京润鸣环境科技有限公司 | Method for chemically conditioning chloride-containing salt mud |
| CN115594528A (en) * | 2022-08-26 | 2023-01-13 | 关祥瑞（Cn） | Method and equipment for preparing composite amino acid calcium magnesium chelating solution by using ammonia-soda alkaline residue |
| CN115594862A (en) * | 2022-08-26 | 2023-01-13 | 关祥瑞（Cn） | Method and equipment for preparing humic acid calcium magnesium chelating liquid by using ammonia-soda alkaline residue |
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