CN109232097A - A kind of alginic acid synergistic carrier preparation method promoting urea conversion - Google Patents
A kind of alginic acid synergistic carrier preparation method promoting urea conversion Download PDFInfo
- Publication number
- CN109232097A CN109232097A CN201811328608.1A CN201811328608A CN109232097A CN 109232097 A CN109232097 A CN 109232097A CN 201811328608 A CN201811328608 A CN 201811328608A CN 109232097 A CN109232097 A CN 109232097A
- Authority
- CN
- China
- Prior art keywords
- alginic acid
- weight
- parts
- synergistic carrier
- urea
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- 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
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention relates to a kind of preparation method with the alginic acid synergistic carrier for promoting urea conversion, which includes the preparation of seaweed acid extractant, the preparation of alginic acid extracting solution and the preparation of alginic acid synergistic carrier.After alginic acid synergistic carrier is in conjunction with urea, the conversion rate of urea can be improved, residual urea rate averagely reduces by 30% or more compared with commercial urea, provides new approaches to improve the urea utilization rate of nitrogen fertilizer of low urease activity soil.Relatively control averagely improves 54.0% and 38.5% to the wheat root fresh weight and vigor of alginic acid synergistic carrier processing respectively, and 37.5% and 26.6% is respectively increased in maize root system fresh weight and vigor.
Description
[technical field]
The invention belongs to technical field of fertilizer production.More particularly it relates to a kind of seaweed for promoting urea conversion
Sour synergistic carrier preparation method.
[background technique]
Urea is the most important nitrogen fertilizers in China, but its need to be converted into ammonium nitrogen and nitrate nitrogen after just can be by crop
It is absorbed and utilized.Low fertility, strongly acidic soil urease activity be in extremely low level, urea is to ammonium nitrogen and nitrate nitrogen conversion rate
It is relatively slow, it is not able to satisfy demand of the plant growth critical period to nitrogen, due to urea nonpolarity, is easy to be moved to root with irrigation water
Layer other than or runoff, lead to nutrient loss and environmental risk.The research and development of urea synergistic carrier are concentrated on how to enhance urine at present
The slow release and stability of element.China's marine algae resource is abundant, using seaweed as primary raw material, how to prepare the sea for promoting urea conversion
Alginic acid synergistic carrier is particularly significant to the urea utilization rate of nitrogen fertilizer improved under specific condition, but basic research and product development equal ten
Divide lag.
CN102701866A discloses a kind of fermentation liquid seaweed extract material synergist and its production method and purposes, with natural sea
Algae is raw material, through microbial fermentation, then taken with alkali carries, the processes such as filters pressing produce seaweed extracted liquor, then to adding chela in liquid
State microelement is closed, fermentation alga liquid fertilizer synergist of the invention is obtained.CN104761413A discloses a kind of with ammonia volatilization
Alginic acid fertilizer synergist of inhibiting effect and preparation method thereof, based on kelp, strain, carbon source, nitrogen source, middle microelement etc.
Want raw material, the processes preparation such as fermented, extraction, compounding.CN107236766A discloses a kind of whole biologic enzymolysis method preparation seaweed
The method of plant growth regulator, it includes preparation before producing, pretreatment of raw material, level-one digests, enzymolysis liquid cleans, enzymolysis liquid is equal
Matter, secondary enzymolysis, post-processing, somatotropin isolates and purifies, fertilizer is matched eventually.They from slow down urea conversion or it is single
The angle development for regulating and controlling crop has no the alginic acid synergistic carrier product that can promote urea conversion and its patent application.
For technological deficiency of the existing technology, the present inventor is on the basis for summarizing the prior art, by a large amount of
Experimental study and analysis work, complete the present invention finally.
[summary of the invention]
[technical problems to be solved]
The object of the present invention is to provide the alginic acid synergistic carrier preparation methods that one kind can promote urea to convert.
[technical solution]
The present invention is achieved through the following technical solutions.
The present invention relates to a kind of alginic acid synergistic carrier preparation methods of promotion urea conversion.
The step of preparation method, is as follows:
A, prepared by seaweed acid extractant
2~5 parts by weight dimethylformamides and 1~3 parts by weight sodium potassium tartrate tetrahydrate are added to 100~200 parts by weight temperature
For in 60~70 DEG C of water, stirring and dissolving is cooling, the seaweed acid extractant is obtained；
B, prepared by alginic acid extracting solution
100 parts by weight seawood meals are added to 800~1500 parts by weight in the seaweed acid extractant that step A is obtained, so
Its temperature is gradually increased to 70~90 DEG C under stiring afterwards, and keeps 6~12h at this temperature, is then cooled to room temperature, from
Heart separation, sediment discard, and obtain the alginic acid extracting solution；
C, prepared by alginic acid synergistic carrier
It is that the nitric acid that 10% peroxophosphoric acid is by weight 5% with concentration by weight is mixed according to weight ratio 1:1 by concentration
It closes uniformly, obtains a kind of nitration mixture；The nitration mixture is added slowly in the alginic acid extracting solution that step B is obtained, by its extracting solution
PH value is adjusted to 1~3, is then heated to 60~80 DEG C of temperature, under stiring, slowly into 1000 parts by weight alginic acid extracting solutions
5 parts by weight benzoyl peroxides are added, then carry out reaction 120min, it is oligomeric to add 10 parts by weight uronic acids, 10 parts by weight
Sugar and 10 parts by weight sugar alcohols, continue to be stirred to react 60min, add 10~20 parts by weight of polyoxyethylene ethers and 2~5 parts by weight are adjacent
Phthalic acid alkylamide, it is cooling, its pH value is adjusted to 7.5~9.0 using potassium pyrophosphate aqueous solution, obtains the promotion
The alginic acid synergistic carrier of urea conversion.
A preferred embodiment of the invention will stir under conditions of 60~240rpm of revolving speed in step
It dissolves obtained solution and is cooled to 40 DEG C of temperature or less.
According to another preferred method of implementation of the present invention, in step, dimethylformamide, sodium potassium tartrate tetrahydrate and water
Weight ratio be 2.6~4.2:1.2~2.8:120~180.
According to another preferred method of implementation of the present invention, in stepb, the seaweed is brown alga, bulk kelp or bubble leaf
The granularity of algae, the seawood meal is less than 2mm.
According to another preferred method of implementation of the present invention, in stepb, under conditions of 1000~5000rpm of revolving speed
It is centrifugated 5~40min.
According to another preferred method of implementation of the present invention, in step C, the uronic acid is glucuronic acid or half
Lactobionic acid.
According to another preferred method of implementation of the present invention, in step C, the oligosaccharide is malto-oligosaccharide or big
Beans oligosaccharide.
According to another preferred method of implementation of the present invention, in step C, the sugar alcohol is D-sorbite, maltose
Alcohol or xylitol.
According to another preferred method of implementation of the present invention, in step C, polyoxyethylene ether and phthalic acid alkane is added
Its solution is cooled to 15~30 DEG C of temperature after base amide.
According to another preferred method of implementation of the present invention, in step C, the concentration of the potassium pyrophosphate aqueous solution is
1~5mol/L.
The present invention is described in more detail below.
The present invention relates to a kind of preparation methods with the alginic acid synergistic carrier for promoting urea conversion.
The step of preparation method, is as follows:
A, the preparation of seaweed acid extractant
2~5 parts by weight dimethylformamides and 1~3 parts by weight sodium potassium tartrate tetrahydrate are added to 100~200 parts by weight temperature
For in 60~70 DEG C of water, stirring and dissolving is cooling, the seaweed acid extractant is obtained.
In the present invention, dimethylformamide is a kind of organic base, it can be acid with carboxyl, phenolic hydroxyl group in alginic acid etc.
Group reacts and generates water soluble algae acid, and so as to extract alginic acid from seaweed raw material, and it also can increase
Methyl, methoxy functional mass contg in seaweed extracted liquor.The dimethylformamide that the present invention uses is to sell currently on the market
Product, such as the product sold by Nanjing Ke Zheng Chemical Co., Ltd. with trade name n,N-Dimethylformamide (DMF).
In the present invention, when other raw material dosages are in the range, if the dosage of dimethylformamide is lower than 2 weights
When measuring part, then alginic acid recovery rate can be reduced；If the dosage of dimethylformamide is higher than 5 parts by weight, seaweed will lead to
Liquid bubble is excessive in sour extraction process, and tiny impurity is mixed in alginic acid liquid, the alginic acid purity liquid decline of extraction；
Therefore, it is suitable, preferably 2.6~4.2 parts by weight that the dosage of dimethylformamide, which is 2~5 parts by weight,.
In the present invention, on the one hand sodium potassium tartrate tetrahydrate can dissolve and extract alginic acid, on the other hand can enrich the carboxylic of alginic acid
Base and hydroxy functional group.The sodium potassium tartrate tetrahydrate that the present invention uses is current market sales of product, such as the auspicious brilliant biology in Hangzhou
The product that Science and Technology Ltd. is sold with trade name sodium potassium tartrate tetrahydrate.
In the present invention, when other raw material dosages are in the range, if sodium potassium tartrate tetrahydrate dosage is lower than 1 weight
Part, then alginic acid recovery rate can be reduced, the effect of its functional group is limited to enriching；If sodium potassium tartrate tetrahydrate dosage is higher than 3 parts by weight,
Then can be excessive because of sodium ion, influence seaweed acid vectors application effect.Therefore, it is to close that the dosage of sodium potassium tartrate tetrahydrate, which is 1~3 parts by weight,
Suitable, preferably 1.2~2.8 parts by weight.
Preferably, the weight ratio of dimethylformamide, sodium potassium tartrate tetrahydrate and water be 2.6~4.2:1.2~2.8:120~
180。
According to the present invention, stirring and dissolving is obtained under conditions of 60~240rpm of revolving speed by raw materials such as dimethylformamides
Solution is cooled to 40 DEG C of temperature or less.
B, prepared by alginic acid extracting solution
100 parts by weight seawood meals are added to 800~1500 parts by weight in the seaweed acid extractant that step A is obtained, so
Its temperature is gradually increased to 70~90 DEG C under stiring afterwards, and keeps 6~12h at this temperature, is then cooled to room temperature, from
Heart separation, sediment discard, and obtain the alginic acid extracting solution.
According to the present invention, the seaweed is brown alga, bulk kelp or yellow tang, and the seaweed that the present invention uses all is existing market
The product of upper sale, such as the brown alga that the present invention uses is the brown alga sold by the friendly company of Yantai Long Island three with trade name kelp；
The bulk kelp that the present invention uses is the bulk kelp sold by Shaanxi Si Nuote Bioisystech Co., Ltd with trade name bulk kelp original powder.
According to the present invention, brown alga, bulk kelp or yellow tang are crushed using existing conventional crushing plant, it is small collects granularity
Alginic acid extracting solution is prepared as raw material in the seawood meal of 2mm.
In the present invention, when seaweed powder raw material is 100 parts by weight, if the extractant dosage is lower than 800 parts by weight,
It will lead to that liquid is thick to be difficult to carry out subsequent centrifugal treating；If the extractant dosage is higher than 1500 parts by weight, will lead to
The alginic acid liquid water content of extraction influences the application in urea.Therefore, the extractant dosage is 800~1500 parts by weight
It is appropriate.
In this step, seaweed powder raw material and seaweed acid extractant are mixed in the case where revolving speed is the stirring of 100~200rpm
The temperature for closing object is gradually increased to 70~90 DEG C, and keeps 6~12h at this temperature.Its extraction time is more than that the range is
It is worthless.If extraction time is shorter than 6h, alginic acid is extracted not exclusively, and alginic acid is caused to lose；If extraction time is super
12h is crossed, then causes the energy consumption for extracting alginic acid to increase, increased costs.Therefore, it is feasible that alginic acid extraction time, which is 6~12h,
's.
According to the present invention, the extract being cooled to room temperature using centrifuge under conditions of 1000~5000rpm of revolving speed from
The heart separates 5~40min.The centrifuge is the product sold on existing market, such as by ShangHai City centrifugal Machine Institute
Co., Ltd separates the product of sleeping spiral shell sedimentation centrifuge sale with trade name two-phase.
C, the preparation of alginic acid synergistic carrier
It is that the nitric acid that 10% peroxophosphoric acid is by weight 5% with concentration by weight is mixed according to weight ratio 1:1 by concentration
It closes uniformly, obtains a kind of nitration mixture；The nitration mixture is added slowly in the alginic acid extracting solution that step B is obtained, by its extracting solution
PH value is adjusted to 1~3, is then heated to 60~80 DEG C of temperature, under stiring, slowly into 1000 parts by weight alginic acid extracting solutions
5 parts by weight benzoyl peroxides are added, then carry out reaction 120min, it is oligomeric to add 10 parts by weight uronic acids, 10 parts by weight
Sugar and 10 parts by weight sugar alcohols, continue to be stirred to react 60min, add 10~20 parts by weight of polyoxyethylene ethers and 2~5 parts by weight are adjacent
Phthalic acid alkylamide, it is cooling, its pH value is adjusted to 7.5~9.0 using potassium pyrophosphate aqueous solution, obtains the promotion
The alginic acid synergistic carrier of urea conversion.
In the present invention, peroxophosphoric acid had not only been adjusted the pH of alginic acid liquid, but can with the metals such as calcium, magnesium in alginic acid from
Son chelating.Nitric acid can access nitro in alginic acid aromatic ring, to improve the dissolubility of alginic acid.
Benzoyl peroxide is a kind of organic oxidizing agent, and the stability of oxidation process can be improved in it.The mistake that the present invention uses
Benzoyl Oxide is current market sales of product, such as Guangzhou Sanming City Chemical Co., Ltd. with trade name benzoyl peroxide first
The product of acyl sale.
The uronic acid that the present invention uses is glucuronic acid or galacturonic acid, and the oligosaccharide that the present invention uses is that malt is low
Glycan or soyabean oligosaccharides, the sugar alcohol that the present invention uses are D-sorbite, maltitol or xylitol, their major function is
The content of alginic acid aldehyde radical and more small molecule carbon source is improved, soil urease liveness is improved.They are product available on the market,
Such as Beijing Kai Senlai Science and Technology Ltd. sold with trade name D-Glucose aldehydic acid product, to lead bioengineering limited for Shanghai hat
Product that company is sold with trade name D- galacturonic acid, hundred garden Long Chuan biotech inc of Shandong are with trade name wheat
The product that the product of bud oligosaccharide sale, Yucheng City Heng Yi Biotechnology Co., Ltd are sold with trade name D-sorbite.
In the present invention, polyoxyethylene ether has both resin and nonionic surfactant performance, can not only be used for stationary phase into
One step slows down movement of the urea in the soil liquid, and as bleeding agent, promotes the combination of alginic acid and urea.Phthalic acid
Alkylamide is nonionic surfactant, it can enhance the osmotic effect of polyoxyethylene ether and to improve synergistic carrier steady
It is qualitative.They are product available on the market, such as by Jiangsu Hai'an Petrochemical Plant with trade name polyoxyethylene ether cream
Agent OP-7 sale product, by Guangzhou Zong Yu Chemical Industry Science Co., Ltd with trade name suspension stabilizer TAB-2 O-phthalic
The product of alkanol amides sale.
In the present invention, when O-phthalic alkanol amides dosage is 2~5 parts by weight, if polyoxyethylene ether dosage is low
In 10 parts by weight, then dispersion and permeance property are unobvious；If polyoxyethylene ether dosage is higher than 20 parts by weight, synergistic carrier is viscous
Spend height；Therefore, it is appropriate that polyoxyethylene ether dosage, which is 10~20 parts by weight,.
Similarly, when polyoxyethylene ether dosage is 10~20 parts by weight, if O-phthalic alkanol amides dosage is lower than 2
Parts by weight are not then significant to the osmotic effect for strengthening polyoxyethylene ether；If O-phthalic alkanol amides dosage is higher than 5 weight
Part, then influence the dispersion performance of polyoxyethylene ether；Therefore, it is appropriate that O-phthalic alkanol amides dosage, which is 2~5 parts by weight,
's.
According to the present invention, be added after polyoxyethylene ether and O-phthalic alkanol amides by its solution be cooled to temperature 15~
30℃。
In the present invention, potassium pyrophosphate can will add polyoxyethylene ether and adjust with the solution after O-phthalic alkanol amides
To alkalescent, and the water solubility of calcium and magnesium ion can be improved.If by its pH value adjust less than 7.5, alginic acid synergistic carrier it is dense
Degree and mobility reduce；It is greater than 9 if its pH value is adjusted, the alkalinity of the alginic acid synergistic carrier is higher, is not suitable for urinating
It is added in element.According to the present invention, the concentration of the potassium pyrophosphate aqueous solution is 1~5mol/L.
The present invention, which prepares alginic acid synergistic carrier, to produce high nitrogen in conjunction with urea production process or granular urea product
The new urea product of fertile utilization rate.
The application method of alginic acid synergistic carrier of the present invention is as follows:
First method: in urea production process, the alginic acid synergy of 5~50 parts by weight the method for the present invention preparation is carried
Body is added in 1000 parts by weight of urea molten liquids, sprays to obtain the granular urea of synergistic carrier containing alginic acid through high tower.
Second method: 5~50 parts by weight step C alginic acid synergistic carrier prepared is added to the heating of 1000 parts by weight
Into 40~75 DEG C of temperature of granular ureas, 2min is quickly stirred, mixes, is dried at 100 DEG C of temperature, obtains increasing containing alginic acid
Imitate the granular urea of carrier.
[beneficial effect]
The beneficial effects of the present invention are: the 1, present invention is from another angle, it is the urea alginic acid under specific condition
Synergistic carrier research and development provide new thinking.
2, after alginic acid synergistic carrier is in conjunction with urea, the conversion rate of urea can be improved, residual urea rate is than commercially available urine
Element reduces by 22% or more.
3, promote crop root growth, improve root activity, from the angle raising utilization rate of fertilizer for promoting Nutrient Absorption.This
Relatively control averagely improves 54.0% and 38.5% to the wheat root fresh weight and vigor of invention alginic acid synergistic carrier processing respectively, jade
37.5% and 26.6% is respectively increased in rice root system fresh weight and vigor.
[specific embodiment]
It will be better understood that the present invention by following embodiments.
One, embodiment is prepared
Embodiment 1: the alginic acid synergistic carrier preparation that the present invention promotes urea to convert
The implementation steps of the embodiment are as follows:
A, prepared by seaweed acid extractant
2 parts by weight dimethylformamides and 1 parts by weight sodium potassium tartrate tetrahydrate are added to the water that 100 parts by weight temperature are 60 DEG C
In, stirring and dissolving under the conditions of revolving speed 120rpm is then cooled to 40 DEG C of temperature hereinafter, obtaining the seaweed acid extractant；
B, prepared by alginic acid extracting solution
Bulk kelp original powder by 100 parts by weight granularities less than 2mm is added to 800 parts by weight and mentions in the alginic acid that step A is obtained
It takes in agent, its temperature is then gradually increased to 70 DEG C under stiring, and keep 12h at this temperature, is then cooled to room temperature,
It is centrifugated 40min under conditions of revolving speed 1000rpm, sediment discards, and obtains the alginic acid extracting solution；
C, prepared by alginic acid synergistic carrier
It is that the nitric acid that 10% peroxophosphoric acid is by weight 5% with concentration by weight is mixed according to weight ratio 1:1 by concentration
It closes uniformly, obtains a kind of nitration mixture；The nitration mixture is added slowly in the alginic acid extracting solution that step B is obtained, by its extracting solution
PH value is adjusted to 1.0, is then heated to temperature 60 C, under stiring, is slowly added to 5 into 1000 parts by weight alginic acid extracting solutions
Parts by weight benzoyl peroxide then carries out reaction 120min, and it is low to add 10 parts by weight glucuronic acids, 10 parts by weight malt
Glycan and 10 parts by weight D-sorbites, continue to be stirred to react 60min, add 10 parts by weight of polyoxyethylene ethers and 2 parts by weight are adjacent
Its pH value, is adjusted to by phthalic acid alkylamide using the potassium pyrophosphate aqueous solution that concentration is 3mol/L by 15 DEG C of cooling temperature
7.5, obtain the alginic acid synergistic carrier for promoting urea conversion.
Embodiment 2: the alginic acid synergistic carrier preparation that the present invention promotes urea to convert
The implementation steps of the embodiment are as follows:
A, prepared by seaweed acid extractant
5 parts by weight dimethylformamides and 3 parts by weight sodium potassium tartrate tetrahydrates are added to the water that 200 parts by weight temperature are 70 DEG C
In, stirring and dissolving under the conditions of revolving speed 60rpm is then cooled to 40 DEG C of temperature hereinafter, obtaining the seaweed acid extractant；
B, prepared by alginic acid extracting solution
Kelp brown alga powder raw material by 100 parts by weight granularities less than 2mm is added to 1000 parts by weight in the sea that step A is obtained
In alginic acid extractant, its temperature is then gradually increased to 90 DEG C under stiring, and keep 6h at this temperature, be then cooled to
Room temperature is centrifugated 30min under conditions of revolving speed 2000rpm, and sediment discards, and obtains the alginic acid extracting solution；
C, prepared by alginic acid synergistic carrier
It is that the nitric acid that 10% peroxophosphoric acid is by weight 5% with concentration by weight is mixed according to weight ratio 1:1 by concentration
It closes uniformly, obtains a kind of nitration mixture；The nitration mixture is added slowly in the alginic acid extracting solution that step B is obtained, by its extracting solution
PH value is adjusted to 3.0, is then heated to 80 DEG C of temperature, under stiring, is slowly added to 5 into 1000 parts by weight alginic acid extracting solutions
Parts by weight benzoyl peroxide then carries out reaction 120min, and it is low to add 10 parts by weight galacturonic acids, 10 parts by weight of soybean
Glycan and 10 parts by weight maltitols, continue to be stirred to react 60min, add 20 parts by weight of polyoxyethylene ethers and 5 parts by weight are adjacent
Its pH value, is adjusted to by phthalic acid alkylamide using the potassium pyrophosphate aqueous solution that concentration is 1mol/L by 20 DEG C of cooling temperature
9.0, obtain the alginic acid synergistic carrier for promoting urea conversion.
Embodiment 3: the alginic acid synergistic carrier preparation that the present invention promotes urea to convert
The implementation steps of the embodiment are as follows:
A, prepared by seaweed acid extractant
3 parts by weight dimethylformamides and 2 parts by weight sodium potassium tartrate tetrahydrates are added to the water that 160 parts by weight temperature are 65 DEG C
In, stirring and dissolving under the conditions of revolving speed 180rpm is then cooled to 40 DEG C of temperature hereinafter, obtaining the seaweed acid extractant；
B, prepared by alginic acid extracting solution
Yellow tang powder raw material by 100 parts by weight granularities less than 2mm is added to the seaweed that 1500 parts by weight are obtained in step A
In acid extractant, its temperature is then gradually increased to 76 DEG C under stiring, and keep 9h at this temperature, is then cooled to room
Temperature is centrifugated 5min under conditions of revolving speed 5000rpm, and sediment discards, and obtains the alginic acid extracting solution；
C, prepared by alginic acid synergistic carrier
It is that the nitric acid that 10% peroxophosphoric acid is by weight 5% with concentration by weight is mixed according to weight ratio 1:1 by concentration
It closes uniformly, obtains a kind of nitration mixture；The nitration mixture is added slowly in the alginic acid extracting solution that step B is obtained, by its extracting solution
PH value is adjusted to 2.0, is then heated to 74 DEG C of temperature, under stiring, is slowly added to 5 into 1000 parts by weight alginic acid extracting solutions
Parts by weight benzoyl peroxide then carries out reaction 120min, and it is low to add 10 parts by weight glucuronic acids, 10 parts by weight of soybean
Glycan and 10 parts by weight xylitols, continue to be stirred to react 60min, add 15 parts by weight of polyoxyethylene ethers and 3 parts by weight neighbour's benzene
Its pH value, is adjusted to by diformazan alkanol amides using the potassium pyrophosphate aqueous solution that concentration is 5mol/L by 25 DEG C of cooling temperature
8.0, obtain the alginic acid synergistic carrier for promoting urea conversion.
Embodiment 4: the alginic acid synergistic carrier preparation that the present invention promotes urea to convert
The implementation steps of the embodiment are as follows:
A, prepared by seaweed acid extractant
4 parts by weight dimethylformamides and 2.5 parts by weight sodium potassium tartrate tetrahydrates are added to the water that 120 parts by weight temperature are 62 DEG C
In, stirring and dissolving under the conditions of revolving speed 240rpm is then cooled to 40 DEG C of temperature hereinafter, obtaining the seaweed acid extractant；
B, prepared by alginic acid extracting solution
Wild kelp brown alga powder raw material by 100 parts by weight granularities less than 2mm is added to 1200 parts by weight and obtains in step A
Seaweed acid extractant in, its temperature is then gradually increased to 82 DEG C under stiring, and keep 8h at this temperature, it is then cold
But to room temperature, it is centrifugated 15min under conditions of revolving speed 4000rpm, sediment discards, and obtains the alginic acid and extracts
Liquid；
C, prepared by alginic acid synergistic carrier
It is that the nitric acid that 10% peroxophosphoric acid is by weight 5% with concentration by weight is mixed according to weight ratio 1:1 by concentration
It closes uniformly, obtains a kind of nitration mixture；The nitration mixture is added slowly in the alginic acid extracting solution that step B is obtained, by its extracting solution
PH value is adjusted to 1.5, is then heated to 66 DEG C of temperature, under stiring, is slowly added to 5 into 1000 parts by weight alginic acid extracting solutions
Parts by weight benzoyl peroxide then carries out reaction 120min, and it is low to add 10 parts by weight galacturonic acids, 10 parts by weight malt
Glycan and 10 parts by weight D-sorbites, continue to be stirred to react 60min, add 18 parts by weight of polyoxyethylene ethers and 4 parts by weight are adjacent
Its pH value, is adjusted to by phthalic acid alkylamide using the potassium pyrophosphate aqueous solution that concentration is 2mol/L by 30 DEG C of cooling temperature
8.5, obtain the alginic acid synergistic carrier for promoting urea conversion.
Two, test example
Test example 1: the influence that alginic acid synergistic carrier of the present invention converts urea
Sample preparation: alginic acid synergistic carrier prepared by embodiment 1, embodiment 2 and embodiment 4 is according to it and urea
Weight ratio 3:100 is added separately in granular urea, after cooling, respectively obtains alginic acid urea A, alginic acid urea B and seaweed
Uraturia element C.Meanwhile commercial urea U (Group Plc of Rising, nitrogen content 46%) is handled in the same way, it obtains
The sample arrived is control sample.
Test procedure: the commercial urea and alginic acid urea A, B, C for weighing the urea containing 1.0g respectively are added in culture bottle
100mL sterile water dissolves, and is separately added into 0.2g urase (vigor~1U) in culture bottle, and after shaking up, being placed in temperature is 37 ± 2 DEG C
It cultivates in no light incubator 12 hours, during this period, was shaken up every 2 hours primary.After culture, using HG/T4135-
Remaining urea amount in diacetyl monoxime colorimetric method for determining solution as defined in 2010.
Residual urea rate is calculated according to following formula:
Residual urea rate=(the remaining urea amount of 1-) × 100, unit %.
The results are shown in Table 1 for the testing inspection.
Table 1: alginic acid urea of the present invention is compared with the residual urea rate of commercial urea
| Type | Residual urea rate, % | It is reduced than commercial urea, % |
| Commercial urea U | 31.7% | - |
| Alginic acid urea A | 25.3% | 20.2 |
| Alginic acid urea B | 20.1% | 36.6 |
| Alginic acid urea C | 23.2% | 26.8 |
The test result that table 1 is listed shows that alginic acid synergistic carrier prepared by the present invention can significantly promote the decomposition of urea
And conversion, the residual urea rate of alginic acid urea A, B, C reduce by 20.2%, 36.6% and 26.8% than commercial urea respectively.
Test example 2: influence of the alginic acid synergistic carrier of the present invention to wheat and Maize Roots and vigor
Test specimen:
The alginic acid synergistic carrier prepared using embodiment 1, embodiment 2 and embodiment 4, alginic acid synergistic carrier of the present invention
Additive amount in Huo Gelan nutrient solution is 0.2g/L, is denoted as A, B, C respectively.
Test method:
The quartz sand of processing is attached in 500mL Pei Yang Portland (drainage hole is arranged at bottom), Ju Li Portland is along 2~3cm.By processing
Crop is colonized in Pei Yang Portland, and each processing is repeated 6 times.Every 1 nutrient solution of pouring in 4 days, each 100mL, to keep certain
Humidity and nutrient density.
Testing inspection:
The 21st day sampling and measuring root system fresh weight after crop emergence, using " plant physiology experiment guidance " (south China science and engineering
University press, 2015) routine colorimetric method measurement TTC vigor.
The results are shown in Table 2 for the testing inspection.
Table 2: influence of the alginic acid synergistic carrier of the present invention to crop root growth and vigor
The absorbability of crop root is an important factor for determining utilization rate of fertilizer.The knot listed by table 2
Fruit is it is found that the wheat root fresh weight and vigor of alginic acid synergistic carrier A, B, C of the present invention processing relatively compare put down respectively
54.0% and 38.5% is improved, 37.5% and 26.6% is respectively increased in maize root system fresh weight and vigor.
It can be seen that can promote the decomposition of urea after alginic acid synergistic carrier prepared by the present invention is in conjunction with urea and turn
Change, provides new approaches to improve the urea utilization rate of nitrogen fertilizer of low urease activity soil.And the energy that crop absorbs nutrient can be improved
Power further increases utilization rate of fertilizer.
Claims (10)
1. a kind of alginic acid synergistic carrier preparation method for promoting urea conversion, it is characterised in that the step of the preparation method such as
Under:
A, prepared by seaweed acid extractant
It is 60 that 2~5 parts by weight dimethylformamides and 1~3 parts by weight sodium potassium tartrate tetrahydrate, which are added to 100~200 parts by weight temperature,
In~70 DEG C of water, stirring and dissolving is cooling, obtains the seaweed acid extractant；
B, prepared by alginic acid extracting solution
100 parts by weight seawood meals are added to 800~1500 parts by weight in the seaweed acid extractant that step A is obtained, are then existed
Its temperature is gradually increased to 70~90 DEG C under stirring, and keeps 6~12h at this temperature, is then cooled to room temperature, centrifugation point
From sediment discards, and obtains the alginic acid extracting solution
C, prepared by alginic acid synergistic carrier
Concentration is mixed with the nitric acid that concentration is by weight 5% according to weight ratio 1:1 for 10% peroxophosphoric acid by weight
It is even, obtain a kind of nitration mixture；The nitration mixture is added slowly in the alginic acid extracting solution that step B is obtained, by the pH value of its extracting solution
It is adjusted to 1~3, is then heated to 60~80 DEG C of temperature, under stiring, is slowly added into 1000 parts by weight alginic acid extracting solutions
5 parts by weight benzoyl peroxides, then carry out reaction 120min, add 10 parts by weight uronic acids, 10 parts by weight oligosaccharide and
10 parts by weight sugar alcohols, continue to be stirred to react 60min, add 10~20 parts by weight of polyoxyethylene ethers and 2~5 parts by weight neighbour benzene two
Formic acid alkylamide, it is cooling, its pH value is adjusted to 7.5~9.0 using potassium pyrophosphate aqueous solution, obtains the promotion urea
The alginic acid synergistic carrier of conversion.
2. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in step, will be in revolving speed
The solution that stirring and dissolving obtains under conditions of 60~240rpm is cooled to 40 DEG C of temperature or less.
3. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in step, dimethyl methyl
The weight ratio of amide, sodium potassium tartrate tetrahydrate and water is 2.6~4.2:1.2~2.8:120~180.
4. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in stepb, the sea
Algae is brown alga, bulk kelp or yellow tang, and the granularity of the seawood meal is less than 2mm.
5. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in stepb, in revolving speed
5~40min is centrifugated under conditions of 1000~5000rpm.
6. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in stepb, the sugar
Aldehydic acid is glucuronic acid or galacturonic acid.
7. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in step C, described is low
Glycan is malto-oligosaccharide or soyabean oligosaccharides.
8. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in step C, the sugar
Alcohol is D-sorbite, maltitol or xylitol.
9. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in step C, polyoxy is added
Its solution is cooled to 15~30 DEG C of temperature after vinethene and O-phthalic alkanol amides.
10. alginic acid synergistic carrier preparation method according to claim 1, it is characterised in that in step C, the coke
The concentration of aqueous potassium phosphate solution is 1~5mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328608.1A CN109232097A (en) | 2018-11-09 | 2018-11-09 | A kind of alginic acid synergistic carrier preparation method promoting urea conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811328608.1A CN109232097A (en) | 2018-11-09 | 2018-11-09 | A kind of alginic acid synergistic carrier preparation method promoting urea conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109232097A true CN109232097A (en) | 2019-01-18 |
Family
ID=65077537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811328608.1A Withdrawn CN109232097A (en) | 2018-11-09 | 2018-11-09 | A kind of alginic acid synergistic carrier preparation method promoting urea conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109232097A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515945A (en) * | 2011-12-06 | 2012-06-27 | 中国农业科学院农业资源与农业区划研究所 | Algae-enhanced urea, production method thereof, and purpose thereof |
| CN102701866A (en) * | 2012-06-27 | 2012-10-03 | 中国农业科学院农业资源与农业区划研究所 | Fermented alga liquid fertilizer synergist and production method and application thereof |
| CN104478597A (en) * | 2014-12-16 | 2015-04-01 | 五洲丰农业科技有限公司 | Process for producing ureaformaldehyde slow release fertilizer with co-production of alginic acid liquid fertilizer |
| CN105481510A (en) * | 2015-12-24 | 2016-04-13 | 上海艳紫化工科技有限公司 | Method for organically planting pecans |
-
2018
- 2018-11-09 CN CN201811328608.1A patent/CN109232097A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515945A (en) * | 2011-12-06 | 2012-06-27 | 中国农业科学院农业资源与农业区划研究所 | Algae-enhanced urea, production method thereof, and purpose thereof |
| CN102701866A (en) * | 2012-06-27 | 2012-10-03 | 中国农业科学院农业资源与农业区划研究所 | Fermented alga liquid fertilizer synergist and production method and application thereof |
| CN104478597A (en) * | 2014-12-16 | 2015-04-01 | 五洲丰农业科技有限公司 | Process for producing ureaformaldehyde slow release fertilizer with co-production of alginic acid liquid fertilizer |
| CN105481510A (en) * | 2015-12-24 | 2016-04-13 | 上海艳紫化工科技有限公司 | Method for organically planting pecans |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105110830A (en) | Method for aerobically composting kitchen waste | |
| CN102550808A (en) | Astragalus membranaceus as silage additive and application thereof in silage preparation | |
| CN105685490B (en) | Stevia rebaudiana waste residue fermentation product compound detoxified cottonseed kernel feed and preparation method thereof | |
| CN106554976B (en) | Method for producing microalgae grease by using monoraphidium | |
| CN106636234B (en) | Method for producing microbial oil by combining flora and oil-producing microorganisms | |
| CN104313079B (en) | Preparation method of monensin premix | |
| CN106367359B (en) | A kind of aspergillus niger and its application in citric acid is prepared in fermentation acorn | |
| CN110759754B (en) | Harmless treatment and resource utilization method of glucosamine fermentation bacterium residues | |
| CN109438139A (en) | A kind of preparation method with the alginic acid synergistic carrier for slowing down urea conversion | |
| CN111437224A (en) | Method for extracting antioxidant component from cannabis sativa leaves by using microorganisms and application of antioxidant component | |
| CN109232097A (en) | A kind of alginic acid synergistic carrier preparation method promoting urea conversion | |
| CN101914586A (en) | Method for preparing and purifying DON toxin | |
| CN109336683A (en) | A kind of alginic acid synergistic carrier preparation method of the urea suitable for acid soil | |
| CN114468143B (en) | Biological organic selenium earthworm selenium and preparation method thereof | |
| CN115849966A (en) | Preparation method of nano-selenium nutrient | |
| AU2020100430A4 (en) | Method for preparing synergistic carrier with alginic acid for slowing urea conversion | |
| CN113502306B (en) | Method for producing sclareolide by catalyzing sclareol | |
| CN112125383B (en) | Method for preparing biological flocculant by using glutinous rice processing wastewater | |
| CN109320378A (en) | A kind of preparation method for the Humic acid synergistic carrier promoting urea conversion | |
| CN108148763A (en) | A kind of method that the very thin Euglena yield of shake flask fermentation is improved by feeding method | |
| CN109384586A (en) | A kind of alginic acid synergistic carrier preparation method of the urea suitable for corn top dressing | |
| CN109400349A (en) | A kind of preparation method of the Humic acid synergistic carrier of the urea suitable for rice top dressing | |
| CN114292763A (en) | Saccharomyces cerevisiae capable of highly producing gamma-aminobutyric acid and soluble beta-glucan and application thereof | |
| CN109400348A (en) | A kind of alginic acid synergistic carrier preparation method of the urea suitable for winter wheat top dressing | |
| CN109265255A (en) | A kind of alginic acid synergistic carrier preparation method of the urea suitable for rice top dressing |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190118 |
|
| WW01 | Invention patent application withdrawn after publication |