CN1080471A - The autofrettage of seed coating liquid - Google Patents
The autofrettage of seed coating liquid Download PDFInfo
- Publication number
- CN1080471A CN1080471A CN 92106295 CN92106295A CN1080471A CN 1080471 A CN1080471 A CN 1080471A CN 92106295 CN92106295 CN 92106295 CN 92106295 A CN92106295 A CN 92106295A CN 1080471 A CN1080471 A CN 1080471A
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- China
- Prior art keywords
- seed
- liquid
- absorbent polymer
- super absorbent
- seed pelleting
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Abstract
A kind of manufacture method of seed pelleting liquid, be to use starch, acrylonitrile in the presence of initator, through graft copolymerization, neutralization, filtration, saponification and make the jelly that contains super absorbent polymer, the novel seed coating solution made from the trace element fertilizer that contains cerium, boron, copper, zinc, molybdenum, water, wherein Ce elements is to utilize the filtrate of the filtration in the super absorbent polymer process through steaming the waste liquid adding after removing ethanol and getting, with this seed coating liquid soybean, corn, peanut and other crops seed are carried out Cotton seeds, the highest volume increase can reach 9.5% to 39.0%.
Description
What the present invention relates to is the manufacturing technology of agricultural coating agent for seed, particularly can drought resisting contains the manufacturing technology of the coating agent for seed of the trace element fertilizer that promotes the crop root growth again.
During modern agriculture is produced, produce and guarantee high yield, need promptly select for use certain material that seed is wrapped up through dressing processing to seed at seeding time for it is enlarged.Present this dressing is seen from effect can be divided into two big classes: a class is that the small-sized seed dressing is made its big granulation, standardization, is beneficial to the large tracts of land mechanical planting; Simultaneously can also in seed coating medicine, add the required nutrient component of a certain amount of plant growth.What for example Czech patents (CS170694) was invented is mixed into the beet seed dressing with wood pulp, glass or asbestos fibre, filler auxiliary agent (perlite, bentonite) and binding agent (starch, carboxymethyl cellulose).Another kind of is to add agricultural chemicals in coating agent for seed; Required nutrient component in the time of also can adding plant growth is broadcast in the soil when seed, can resist disease, worm, grass, the plague of rats of harm seed, and promotes the crops seedling stage growth.Chinese patent (CN 86100095A) has been invented the series prescription of 16 coating agent for seed, all contains kind of composition surplus agricultural chemicals, trace element fertilizer, colloid dispersant, film forming agent, the bleeding agent etc. ten in these prescriptions.It is bactericide that another Chinese patent (CN 85107573A) proposes with the methyl orthophosphoric acid salt, is binding agent with vinyl acetate, polyvinyl alcohol or carboxymethyl cellulose, is the coating agent for seed of liquid-carrier with methyl alcohol; United States Patent (USP) (US 4272417) invention be to contain the coating agent for seed that bactericide, nutrient component, water-soluble or water-dispersed resin (as bonding agent), suspending agent etc. and water or polyalcohol mix.Though with starch and acrylonitrile etc. is that the prepared high polymer of raw material also can be used for soil water-retaining, seed dressing, but it is the solid superpolymer that obtains through graft copolymerization, neutralization, filtration, saponification, desalination, segregation, drying and other steps, when being used for seed dressing or being seed pelleting, need solid superpolymer water swelling, and the cerium filtrate that contains that is produced in preparation super absorbent polymer process has been used as the waste liquid jettisoning.As everyone knows, cerium is the needed rare earth microelement fertilizer of crops.
The purpose of this invention is to provide a kind of new technology of more simplifying than prior art with super absorbent polymer and trace element fertilizer manufacturing seed pelleting liquid, it utilize produce in the synthesizing super absorbent polymer process contain the source of cerium waste liquid as rare earth microelement fertilizer, and make novel seed pelleting liquid with other trace element fertilizers.
Technology provided by the invention is: starch and acrylonitrile connect the polymer that the skill copolymerization obtains, after saponification and the jelly that contains super absorbent polymer, do not need glue salt, segregation, drying and directly add the component of trace element fertilizer and be mixed with coating agent for seed.Its concrete way is: starch (wet basis) is added water mix, at 80～85 ℃ of following gelatinization 0.5～1.0h, the cooling back adds acrylonitrile, adding initator (salpeter solution of cerous ammonium nitrate) again impels and connects skill reaction and carry out, initator adds back control temperature of charge and is no more than 40 ℃ of reaction 100～150min down, then use NaOH solution neutralization reaction material, adding ethanol again stirs, filter, filter cake is＜60 ℃ of dryings, pulverize,, make the powdered graft copolymer all by 40 eye mesh screens.Filtrate is reclaimed ethanol through distillation, and residual liquid is used for the manufacturing of coating solution for containing cerium solution.Its proportion of raw materials was when graft copolymer was made:
Starch 100
Acrylonitrile 90～150
Initator 25～50
Ethanol 500～1000
Water 1000～1500
Graft copolymer is placed in the reactor, add NaOH solution, obtain containing the jelly of super absorbent polymer after the cooling in 80～100 ℃ of following saponification 3～4h.With this jelly aqueous dispersion, with HNO
3Solution neutralization adds above-mentioned filtrate then and removes the solution that contains cerium solution and contain zinc, boron, copper, molybdenum of ethanol and mix and disperse, and adds suitable quantity of water again and stirs and promptly obtain seed pelleting liquid.It is 200～400 that its dry absorbs deionized water quality multiple, contains cerium, boron, copper, zinc, molybdenum for from 0～400 * 10
-6This is a kind of novel seed coating solution, except Zn, Mo commonly used, Cu, B etc., uses rare-earth element-Ce as trace element fertilizer first in coating agent for seed in the trace element of adding.Application is the dry crop seed, and its application purpose is to have drought resistance function after planting, can promote the root growth in seedling stage simultaneously, thereby guaranteed the emergence rate height, and absorb moisture and nutriment in the soil better, and can promote the growth of crop growth phase, play the effect of topdressing.Handle seed with this coating solution peanut, corn, Soybean and Other Crops are all had tangible production-increasing function.
The characteristics that the present invention compared with prior art has are: (1) is existing to be that the technology of feedstock production super absorbent polymer is to obtain solids through connecing skill copolymerization, saponification, desalination, segregation, drying and other steps with starch and acrylonitrile.When being used for coating agent for seed again through water-solublely expand, operation such as mixing.After institute of the present invention adopting process is the graft copolymer saponification, do not need desalination, segregation, drying, directly use with moisture jelly state, thereby simplified the technology for preparing super absorbent polymer, conservation reduces cost.
(2) prior art reaction under ammonium ceric nitrate causes at starch and acrylonitrile when making graft copolymer, contains cerium solution and has abandoned as waste liquid after reclaiming ethanol.The present invention is reclaimed, and it is added in the coating solution and utilizes, and realizes changing waste into valuable.
(3) coating solution made of the present invention is to have added little fertilizer such as boron except common usefulness, zinc, copper, molybdenum, has also added cerium, with rare earth element for the first time as the little fertile composition in the seed pelleting liquid.This fertile slightly root growth in seedling stage that can promote crop better absorbs the moisture content and the nutriment of soil better, to improving output remarkable effect is arranged.
Example 1
High suction gathers and contains producing of thing jelly.
33g corn starch (wet basis) is put into the reactor that has agitator, add 500g water, mix into starch milk,, be cooled to 25 ℃ in 80～85 ℃ of following gelatinization 30min.Stir and slowly to add the 42g acrylonitrile down, after add the 9ml initator gradually (the initator preparation: the 11.4g ammonium ceric nitrate be dissolved in the HNO that 100ml concentration is 1mol/L
3In), the control reaction temperature is no more than 40 ℃.Behind the reaction 1.5h., adding the 3ml initator again, continue reaction 0.5h, is that to make PH be 6.5～7.0 for the NaOH neutralization reactant of 0.5mol/L with concentration.Add 95% ethanol 250ml, mixing filters, and filter cake is dry under＜60 ℃, and the starch-acrylonitrile graft copolymer that obtains is pulverized, and makes it all by 40 eye mesh screens.Must measure 66g.
The 10g graft copolymer is put into enamel tray, and adding concentration is the NaOH solution 250ml of 0.35mol/L, places in the steamer 90～100 ℃ of following saponification 4h. coolings, obtain containing super absorbent polymer jelly.
Example 2
Producing of coating solution.
Add 1000g water in the blender, will add wherein with the prepared jelly of 10g graft copolymer in the example 1, dispersed with stirring 5h is the HNO of 0.5mol/L with concentration
3Being neutralized to PH is 6.5～7.0, add successively preparation 10g graft copolymer filter filtrate after boiling off ethanol gained contain cerium solution; 2%Na
2B
4O
710H
2O solution 100g; 1%CuSO
45H
2O solution 20g, mending at last and adding water to total amount is 2000g, stirs 30min.Seed pelleting liquid quality index is:
Solid content is less than 0.5%
Dry absorbs deionized water quality multiple 300～400
Cerium (Ce) content 25 * 10
Boron (B) content 110 * 10
Copper (Cu) content 25 * 10
Example 3
Producing of coating solution.
In blender, add 1000g water, the prepared jelly of 10g graft copolymer, 0.25gZnO, dispersed with stirring 6h.Order add the filtrate of preparation 10g graft copolymer when filtering after boiling off ethanol gained contain cerium solution; 2%Na
2B
4O
710H
2O solution 100g; 1%CuSO
45H
2O solution 20g; 2%Na
2MoO
42H
2O solution 50g, mending and adding water to gross mass is 2000g, continues to mix 30min.Product quality indicator is:
Solid content is not less than 0.5%
Dry absorbs deionized water quality multiple 200～300
Cerium (Ce) content 25 * 10
Boron (B) content 110 * 10
Copper (Cu) content 25 * 10
Zinc (Zn) content 110 * 10
Molybdenum (Mo) content 200 * 10
Example 4
Producing of coating solution.
Add raw material and operating procedure with example 3, just the product gross mass that makes at last is 1000g.The output and quality index except that dry absorb deionized water quality multiple and example 3 identical, the equal ratio 3 of other every indexs is twice.
Coating solution uses and the increasing crop yield situation.Coating solution that use-case 2 makes and crop seed carry out Cotton seeds with the ratio of 1: 5 quality.Continuous 4 years sub-districts and Demonstration Application test, corn is the highest to increase production 14.6%, and soybean is the highest increases production 39.0%, and peanut is the highest to increase production 9.5%.
Claims (3)
1, a kind of manufacture method of seed pelleting liquid, feature of the present invention be starch and acrylonitrile in the presence of initator through graft copolymerization, neutralization, filtration, saponification step and the jelly of making that contains super absorbent polymer, with the seed pelleting liquid that trace element, water mix, it is 200-400 that its dry absorbs first ionized water quality multiple.
2, the manufacture method of seed pelleting liquid as claimed in claim 1, feature of the present invention are that described trace element fertilizer is the compound that contains cerium, boron, copper, zinc, molybdenum element, and above-mentioned constituent content is from 0～400 * 10 in the seed pelleting liquid
-6
3, as the manufacture method of claim 1 or 2 described seed pelleting liquid, feature of the present invention is the Ce elements in the described trace element fertilizer, is to utilize filtrate when filtering in the preparation super absorbent polymer process through steaming waste liquid after removing ethanol and add and getting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106295 CN1080471A (en) | 1992-07-02 | 1992-07-02 | The autofrettage of seed coating liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106295 CN1080471A (en) | 1992-07-02 | 1992-07-02 | The autofrettage of seed coating liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1080471A true CN1080471A (en) | 1994-01-12 |
Family
ID=4941985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92106295 Pending CN1080471A (en) | 1992-07-02 | 1992-07-02 | The autofrettage of seed coating liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1080471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105027747A (en) * | 2015-09-21 | 2015-11-11 | 山西省农业科学院谷子研究所 | Pelletized millet seeds and preparation method thereof |
| CN107441117A (en) * | 2016-05-30 | 2017-12-08 | 上海诺成药业股份有限公司 | A kind of Muhivitamin Formula With Minerals calcium preparation and preparation method thereof |
-
1992
- 1992-07-02 CN CN 92106295 patent/CN1080471A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105027747A (en) * | 2015-09-21 | 2015-11-11 | 山西省农业科学院谷子研究所 | Pelletized millet seeds and preparation method thereof |
| CN107441117A (en) * | 2016-05-30 | 2017-12-08 | 上海诺成药业股份有限公司 | A kind of Muhivitamin Formula With Minerals calcium preparation and preparation method thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |