CN106892775A - A kind of starch-polyacrylate acid butyl ester is biomass carbon based slow-release fertilizer of carrier and preparation method thereof - Google Patents
A kind of starch-polyacrylate acid butyl ester is biomass carbon based slow-release fertilizer of carrier and preparation method thereof Download PDFInfo
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- CN106892775A CN106892775A CN201710093538.5A CN201710093538A CN106892775A CN 106892775 A CN106892775 A CN 106892775A CN 201710093538 A CN201710093538 A CN 201710093538A CN 106892775 A CN106892775 A CN 106892775A
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- biomass carbon
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- release fertilizer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/02—Acids; Metal salts or ammonium salts thereof, e.g. maleic acid or itaconic acid
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Soil Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses the biomass carbon based slow-release fertilizer that a kind of starch-polyacrylate acid butyl ester is carrier, and its preparation technology, it is characterised in that with rice straw, urea, kaolin, itaconic acid, acrylamide, ammonium ceric nitrate, attapulgite, N, N,Methylene-bisacrylamide, bentonite, humic acid, zeolite, bacillus, cornstarch, butyl acrylate, azodiisobutyronitrile etc. are raw material.The present invention with ammonium ceric nitrate as initiator, with N, N,Methylene-bisacrylamide is crosslinking agent, and itaconic acid is prepared for a kind of composite highly-absorbent resin with acrylic amide graft copolymerization, and water holding capacity is good；Bentonite can improve soil texture, improve water conservation drought resisting, the fertilizer conservation getting fat ability of soil；Water absorption rate, water retention property and the heat endurance of high hydroscopic resin are improve simultaneously；It is combined with humic acid, zeolite, bacillus and is prepared for soil conditioner, can be used to adjust soil acidity or alkalinity, buffering soil value, and then improve crop yield.
Description
Technical field
The present invention relates to fertilizer field, and in particular to a kind of starch-polyacrylic acid butyl ester delays for the biomass carbon base of carrier
Release fertilizer, and its preparation technology.
Background technology
China is agricultural production big country, and substantial amounts of agricultural crop straw is produced therefrom, and directly burning can cause serious ring
Border problem, such as soil erosion, desertification.And, biomass carbon solid is obtained through pyrolysis by agricultural crop straw under certain condition
Product, the biomass carbon being prepared into using crop straw refuse can be realized being widely applied in agriculture field.
Zhang Wei is in its master thesis《The preparation of rice straw charcoal slow-release fertilizer and performance study》In one text, with paddy rice
Stalk is raw material, and biomass carbon is prepared by continuous pyrolysis device, and biomass carbon base material is prepared by disc granulation.Paddy rice
Stalk, to constant weight, is crushed through 40 DEG C of drying, in input pyrolysis installation, is heated to 400-600 DEG C of pyrolysis, is cooled to room temperature, is obtained
Rice straw biomass carbon.Biomass carbon and urea are distinguished after size-reduced machine is crushed and crosses 40 mesh sieves, mix rearmounted with kaolin
In granulating disc, start granulating disc, rotary speed is adjusted to 30r/min, rotating disk inclination angle is 45o, treats that fertilizer is abundant
After mixing, with sprayer by distilled water（15-20%）Spray into mixing, the rear biomass carbon base urine that stop granulation, will prepare to be formed
Fertilizer takes out from granulating disc, is placed in electric drying oven with forced convection, for doing to constant weight at 40 DEG C, granulated carbon base is obtained
Slow release fertilizer.But there is water-absorbing-retaining scarce capacity.
The present invention with ammonium ceric nitrate as initiator, with N, N,- methylene-bisacrylamide is crosslinking agent, itaconic acid and propylene
Acid amide-grafted copolymerization is prepared for a kind of composite highly-absorbent resin, and with good water holding capacity, the addition of attapulgite is improved
The salt-resistance of high hydroscopic resin.Bentonite can improve the structure of soil, improve water conservation drought resisting, the fertilizer conservation getting fat ability of soil；Together
When, bentonitic addition also improves water absorption rate, water retention property and the heat endurance of high hydroscopic resin；By itself and humic acid, boiling
Stone, bacillus are compound to prepare a kind of soil conditioner, can be used to adjust soil acidity or alkalinity, buffering soil value, Jin Erti
High crop yield.
The content of the invention
It is the biomass carbon base of carrier the present invention solves the technical problem of a kind of starch-polyacrylic acid butyl ester is provided
Slow release fertilizer and its preparation technology, the fertilizer prepared according to the technique have good sustained release performance, high-hydroscopicity high-moisture-retention,
And acid-base property that is environmentally friendly, pollution-free, not influenceing soil.
The technical problems to be solved by the invention are realized using following technical scheme：
Rice straw 33-45, urea 13-24, kaolin 7-12, itaconic acid 6-10, acrylamide 4-8, ammonium ceric nitrate 2-3 are recessed
Convex rod soil 3-6, N, N,- methylene-bisacrylamide 2-4, bentonite 6-11, humic acid 7-9, zeolite 5-10, bacillus 5-8,
Cornstarch 4-7, butyl acrylate 3-6, azodiisobutyronitrile 1-2, NaOH solution, distillation appropriate amount of water.
A kind of starch-polyacrylic acid butyl ester is the preparation method of the biomass carbon based slow-release fertilizer of carrier, it is characterised in that
Carry out according to the following steps：
A. rice straw is dried to constant weight through 40-60 DEG C, it is 5-10cm to carry out cutting process length with cutting machine, input connects
In continuous pyrolysis installation, 400-600 DEG C of heating charing 3-5h is warming up to, crosses 40-100 mesh sieves, be cooled to room temperature, rice straw is obtained
Biomass carbon；
B. in itaconic acid 1:2-5:20-30 adds NaOH solution, distilled water, stirs, and adds acrylamide, cerous nitrate
Ammonium, after stirring 10-30min, adds attapulgite, the ultrasound 1-2h at 30-40 DEG C to be passed through nitrogen, add N, N,- di-2-ethylhexylphosphine oxide
Acrylamide, lasting stirring, heating water bath, by gained sample in 70-80 DEG C of drying, grinds to 60-70 DEG C of reaction 3-5h,
It is stand-by；
C. bentonite is mixed with humic acid, 1:5-10 adds distilled water, stirs, and tune pH is 8-9, adds zeolite, gemma
Bacillus, sonic oscillation 3-5h, freeze-drying, grind at 25-45 DEG C, cross 100-200 mesh sieves, stand-by；
D. by cornstarch 1:10-15 is added in distilled water, and room temperature is cooled to after Heat Gelatinization, adds initiator azo two different
Butyronitrile, butyl acrylate, the polymerisation 2-3h under UV illumination, alcohol are washed 3-5 times, filtered, are dried to constant weight；
E. gained in biomass carbon, kaolin and b, c, d obtained by 40-100 mesh sieves, with a is crossed after the size-reduced machine of urea is crushed
It is placed in granulating disc after material mixing, rotary speed is adjusted to 30-40r/min, rotating disk inclination angle is 40-50o, treats that fertilizer fills
Divide after mixing, the distilled water of 10-20% is sprayed into mixing with sprayer, rear stopping granulation to be formed, taking-up is placed in electric heating air blast and does
In dry case, in 40-50 DEG C of drying to constant weight, a kind of biomass carbon based slow-release fertilizer is obtained.
Reaction mechanism of the invention is as follows：
（1）The present invention with ammonium ceric nitrate as initiator, with N, N,- methylene-bisacrylamide is crosslinking agent, itaconic acid and propylene
Acid amide-grafted copolymerization is prepared for a kind of composite highly-absorbent resin, and with good water holding capacity, the addition of attapulgite is improved
The salt-resistance of high hydroscopic resin.
（2）Bentonite can improve the structure of soil, improve water conservation drought resisting, the fertilizer conservation getting fat ability of soil；Meanwhile, bentonite
Addition also improve water absorption rate, water retention property and the heat endurance of high hydroscopic resin；By itself and humic acid, zeolite, gemma bar
Bacterium is compound to prepare a kind of soil conditioner, can be used to adjust soil acidity or alkalinity, buffering soil value, and then produce are made in raising
Amount.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment
A kind of starch-polyacrylic acid butyl ester is the biomass carbon based slow-release fertilizer of carrier, by the raw material of following weight parts (g)
It is obtained：
Rice straw 45, urea 24, kaolin 12, itaconic acid 10, acrylamide 8, ammonium ceric nitrate 3, attapulgite 6, N, N,- sub-
Bisacrylamide 4, bentonite 11, humic acid 9, zeolite 10, bacillus 8, cornstarch 7, butyl acrylate 6, azo
Bis-isobutyronitrile 2, NaOH solution, distillation appropriate amount of water.
A kind of starch-polyacrylic acid butyl ester is the preparation method of the biomass carbon based slow-release fertilizer of carrier, it is characterised in that
Carry out according to the following steps：
A. rice straw is dried to constant weight through 50-60 DEG C, it is 5-10cm to carry out cutting process length with cutting machine, input connects
In continuous pyrolysis installation, 550-600 DEG C of heating charing 3h is warming up to, crosses 100 mesh sieves, be cooled to room temperature, rice straw is obtained biological
Matter charcoal；
B. in itaconic acid 1:5:30 add NaOH solution, distilled water, stir, and add acrylamide, ammonium ceric nitrate, stir
After mixing 30min, attapulgite, the ultrasound 2h at 30-40 DEG C is added to be passed through nitrogen, add N, N,- methylene-bisacrylamide,
Lasting stirring, heating water bath, by gained sample in 70-80 DEG C of drying, grinds to 60-70 DEG C of reaction 3h, stand-by；
C. bentonite is mixed with humic acid, 1:10 add distilled water, stir, and tune pH is 8-9, adds zeolite, gemma bar
Bacterium, sonic oscillation 3h, freeze-drying, grind at 35-45 DEG C, cross 100 mesh sieves, stand-by；
D. by cornstarch 1:In 15 addition distilled water, room temperature is cooled to after Heat Gelatinization, adds the isobutyl of initiator azo two
Nitrile, butyl acrylate, the polymerisation 2h under UV illumination, alcohol are washed 3 times, filtered, are dried to constant weight；
E. gains in biomass carbon, kaolin and b, c, d obtained by 100 mesh sieves, with a are crossed after the size-reduced machine of urea is crushed
It is placed in granulating disc after material mixing, rotary speed is adjusted to 30-40r/min, rotating disk inclination angle is 40-50o, treats that fertilizer is abundant
After mixing, 15% distilled water is sprayed into mixing with sprayer, rear stopping granulation to be formed, taking-up is placed in electric drying oven with forced convection
In, in 40-50 DEG C of drying to constant weight, obtain a kind of biomass carbon based slow-release fertilizer.
A kind of starch-polyacrylic acid butyl ester prepared by above-described embodiment is the performance of the biomass carbon based slow-release fertilizer of carrier
Testing result is as follows：
Nitrogen in the fertilizer release rate behind in placing into the soil 1,5 and 30 days is respectively 12%, 29% and 64%；Water absorbent rate reaches
To 426g/g, after 10d, water retention is still >=50%.
Claims (2)
1. a kind of starch-polyacrylic acid butyl ester is the biomass carbon based slow-release fertilizer of carrier, it is characterised in that by following weight parts
Raw material be obtained：
Rice straw 33-45, urea 13-24, kaolin 7-12, itaconic acid 6-10, acrylamide 4-8, ammonium ceric nitrate 2-3 are recessed
Convex rod soil 3-6, N, N,- methylene-bisacrylamide 2-4, bentonite 6-11, humic acid 7-9, zeolite 5-10, bacillus 5-8,
Cornstarch 4-7, butyl acrylate 3-6, azodiisobutyronitrile 1-2, NaOH solution, distillation appropriate amount of water.
2. a kind of starch-polyacrylic acid butyl ester according to claim 1 is the system of the biomass carbon based slow-release fertilizer of carrier
Preparation Method, it is characterised in that carry out according to the following steps：
A. rice straw is dried to constant weight through 40-60 DEG C, it is 5-10cm to carry out cutting process length with cutting machine, input connects
In continuous pyrolysis installation, 400-600 DEG C of heating charing 3-5h is warming up to, crosses 40-100 mesh sieves, be cooled to room temperature, rice straw is obtained
Biomass carbon；
B. in itaconic acid 1:2-5:20-30 adds NaOH solution, distilled water, stirs, and adds acrylamide, cerous nitrate
Ammonium, after stirring 10-30min, adds attapulgite, the ultrasound 1-2h at 30-40 DEG C to be passed through nitrogen, add N, N,- di-2-ethylhexylphosphine oxide
Acrylamide, lasting stirring, heating water bath, by gained sample in 70-80 DEG C of drying, grinds to 60-70 DEG C of reaction 3-5h,
It is stand-by；
C. bentonite is mixed with humic acid, 1:5-10 adds distilled water, stirs, and tune pH is 8-9, adds zeolite, gemma
Bacillus, sonic oscillation 3-5h, freeze-drying, grind at 25-45 DEG C, cross 100-200 mesh sieves, stand-by；
D. by cornstarch 1:10-15 is added in distilled water, and room temperature is cooled to after Heat Gelatinization, adds initiator azo two different
Butyronitrile, butyl acrylate, the polymerisation 2-3h under UV illumination, alcohol are washed 3-5 times, filtered, are dried to constant weight；
E. gained in biomass carbon, kaolin and b, c, d obtained by 40-100 mesh sieves, with a is crossed after the size-reduced machine of urea is crushed
It is placed in granulating disc after material mixing, rotary speed is adjusted to 30-40r/min, rotating disk inclination angle is 40-50o, treats that fertilizer fills
Divide after mixing, the distilled water of 10-20% is sprayed into mixing with sprayer, rear stopping granulation to be formed, taking-up is placed in electric heating air blast and does
In dry case, in 40-50 DEG C of drying to constant weight, a kind of biomass carbon based slow-release fertilizer is obtained.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093538.5A CN106892775A (en) | 2017-02-21 | 2017-02-21 | A kind of starch-polyacrylate acid butyl ester is biomass carbon based slow-release fertilizer of carrier and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093538.5A CN106892775A (en) | 2017-02-21 | 2017-02-21 | A kind of starch-polyacrylate acid butyl ester is biomass carbon based slow-release fertilizer of carrier and preparation method thereof |
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| CN106892775A true CN106892775A (en) | 2017-06-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641727A (en) * | 2018-04-25 | 2018-10-12 | 常州市蓝勖化工有限公司 | A kind of preparation method of soil conditioner |
| CN109776730A (en) * | 2019-03-15 | 2019-05-21 | 贵州大学 | A kind of environmentally friendly water-loss reducer of soil and preparation method with slow-release function |
| CN111234833A (en) * | 2020-01-17 | 2020-06-05 | 华中农业大学 | Saline-alkali soil water-retention granules and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601832A (en) * | 2013-11-05 | 2014-02-26 | 内蒙古民族大学 | Carbon-based water absorbent and preparation method thereof |
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2017
- 2017-02-21 CN CN201710093538.5A patent/CN106892775A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601832A (en) * | 2013-11-05 | 2014-02-26 | 内蒙古民族大学 | Carbon-based water absorbent and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 楚晖娟等: "淀粉基非包膜缓释尿素肥料的制备与释放特性", 《化学与生物工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108641727A (en) * | 2018-04-25 | 2018-10-12 | 常州市蓝勖化工有限公司 | A kind of preparation method of soil conditioner |
| CN109776730A (en) * | 2019-03-15 | 2019-05-21 | 贵州大学 | A kind of environmentally friendly water-loss reducer of soil and preparation method with slow-release function |
| CN111234833A (en) * | 2020-01-17 | 2020-06-05 | 华中农业大学 | Saline-alkali soil water-retention granules and preparation method thereof |
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Application publication date: 20170627 |
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