CN1258978C - Expanded granule carrier composition for adsorbing agricultural chemicals and its preparation and uses - Google Patents
Expanded granule carrier composition for adsorbing agricultural chemicals and its preparation and uses Download PDFInfo
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- CN1258978C CN1258978C CN 200310112076 CN200310112076A CN1258978C CN 1258978 C CN1258978 C CN 1258978C CN 200310112076 CN200310112076 CN 200310112076 CN 200310112076 A CN200310112076 A CN 200310112076A CN 1258978 C CN1258978 C CN 1258978C
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Abstract
The present invention relates to an expanded particulate carrier composition for adsorbing agricultural chemicals, which comprises 10 to 35% of starch, 10 to 35% of fiber and 30 to 65% of clay, wherein the weight of the composition is considered as the standard, and the composition is composed of expanded particles. A method for preparing the composition comprises the steps that the fiber and the clay are pulverized at first, and then, the starch, fiber powers and clay powders are uniformly mixed according to the proportion; the mixture is pressed into expanded particles at the temperature of about 60 to 120 DEG C and under the pressure of 3 to 30 KG/CM<2>, and then, the particles are dried and cooled to the environment temperature. The carrier composition can be effectively used as agricultural chemicals and particulate compositions for sterilization, weed control and corrosion prevention.
Description
The present invention relates to a kind of swelling granular carrier compositions and preparation and purposes of adsorbing agricultural chemicals.
At present; the particulate carrier materials of the adsorptive liquid agricultural chemicals that insecticide factory produces is the granule carrier material that filters out after sand grains outer surface parcel one deck chemisorbed layer or building common brick are pulverized; be used for the adsorptive liquid agricultural chemicals; granular agrochemical concentration is reduced; become scattered about the farmland when peasant uses, agricultural chemicals is not easy to distribute in empty G﹠W, kills off the insect pests and slowly discharge agricultural chemicals in the farmland; improve drug effect, help health and environmental protection.But still exist than great, adsorption capacity is poor, is generally below 10%, and particulate carrier materials non-degradable in the farmland influences soil property and is harmful to environmental protection, is difficult to the shortcoming of the release time of control agricultural chemicals.
The purpose of this invention is to provide a kind of stable, the swelling granular carrier compositions of high adsorption capacity and degradable absorption agricultural chemicals.
Have now found that starch, fiber powder and mud soil compound powder or starch and mud soil compound powder or starch and fiber compound powder or fiber and mud soil compound powder or starch or fiber powder or mud soil powder.Can be used as the carrier of agricultural chemicals, disinfectant, weed killer herbicide and the preservative of liquid, gas, thereby both can make the swelling granular carrier compositions of stable, high adsorption capacity, degradable, uniform particles and (particle also can be in different size) attractive in appearance, improvement soil property, environmental adsorptive liquid agricultural chemicals, disinfectant, weed killer herbicide and preservative etc.
According to the present invention, comprise starch and fiber and mud soil among the swelling granular carrier compositions of above-mentioned absorption agricultural chemicals.Starch is potato powder or ground rice or flour, and containing weight ratio is 10～35%, and preferred version is 20～30%.Fiber is rice bar powder or straw powder or milled powders of cornstalk or rice husk powder or corn core powder or wheat husk powder etc., and containing weight ratio is 10～35%, and preferred version is 15～25%.Mud soil is mud soil powder, and containing weight ratio is 30～60%, and preferred version is 45～55%.
The present invention also proposes the preparation method of above-mentioned carrier compositions, earlier with fiber, and mud soil raw material pulverizing, then with starch, the fiber powder, it is two evenly mixed by described proportioning for mud soil powder or above-mentioned three, at about 60～120 ℃, pressure 3～30K/CM
2Under be squeezed into swelling granular, again 80～200 ℃ down dry, be cooled to environmental temperature.Particle size is 20 millimeters of Φ 0.5～Φ, is generally 2 millimeters of Φ 1～Φ.
The composition that the present invention proposes need can be applicable to the every field of adsorptive liquid, gas composition.These compositions are particularly suited for being used for the adsorptive liquid agricultural chemicals, and disinfectant, weed killer herbicide and preservative are made agricultural chemicals, disinfection, weeding, anticorrosion particle.
Can be well-known in the starch technical field as the starch and the manufacture method thereof of component in the carrier compositions of the present invention.Preferred starch is potato powder and red dog flour, and is more cheap.
For component fibre powder and the manufacture method thereof in the carrier compositions of the present invention, rice bar or straw or corn straw or corn core or husk or wheat husk etc. can be pulverized with cracker, preferred fiber powder is rice husk powder or wheat husk powder or rice bar powder or paper pulp.
Is well-known for soil powder of the mud in the carrier compositions of the present invention and manufacture method thereof in mud soil powder technical field, and preferred mud soil powder is a mountain mud powder.
The swelling granular composition stable of absorption agricultural chemicals proposed by the invention, and many small pores are arranged, the swelling granular size is evenly.Though can add other component in the present composition, preferred composition of the present invention is only by starch, and it two forms fiber and mud soil or three.If add other component, then the component of these interpolations only comprises on a small quantity in preferred compositions, for example Wei Liang rare earth or binding agent.
Agricultural chemicals leaves time of losing efficacy behind the carrier compositions by the performance decision of agricultural chemicals own, generally at 10 days with interior inefficacy.
After adopting such scheme, owing to adopt the proportioning of starch, fiber powder, mud soil powder to change the adsorptivity of swelling granular composition and the time of release agricultural chemicals, general controlled adsorption capacity is 1-20%, and the time that controlled discharges agricultural chemicals is 1 to 90 day, is generally 10 days.Have high adsorption capacity, adsorption capacity and agricultural chemicals controlled release time, proportion is little, uniform particles, attractive in appearance, degradability is good, and the improvement soil property increases fertility, helps advantages such as environmental protection.
The following stated embodiment describes the present invention in detail.In these embodiments, unless otherwise indicated, all umbers and percentage are all by weight.
Embodiment 1
With 20 parts of tapioca starch, 15 parts of secondary stocks, 65 parts of mountain mud powder stir mixed in agitator, at 80 ℃, pressure 10KG/CM
2In extruder, be squeezed into swelling granular down, 100 ℃ of oven dry down, be cooled to environmental temperature then.
Products obtained therefrom is expanded the material that many spileholes are arranged.
Embodiment 2
It is mixed that 25 parts of red dog flours, 20 parts of rice husk powders, 55 parts of mountain mud powder are stirred in agitator, at 100 ℃, pressure 20KG/CM
2In extruder, be squeezed into swelling granular down, under 120 ℃, dry, be cooled to environmental temperature then.
Products obtained therefrom is that the swelling granular of spilehole is perhaps arranged.
Embodiment 3
With 30 parts of potato parts, 25 parts of wheat husk powder, 45 parts of mountain mud powder stir mixed in agitator, at 120 ℃, pressure 30KG/CM
2In extruder, be squeezed into swelling granular down, under 150 ℃, dry, be cooled to environmental temperature then.
Products obtained therefrom is the swelling granular that many spileholes are arranged.
Claims (6)
1, a kind of swelling granular carrier compositions that adsorbs agricultural chemicals comprises starch, fiber, mud soil, is standard with the composition weight, and content of starch is 10-35%, and fiber content is 10～35%, and mud soil content is 30～65%, and it is a swelling granular.
2, composition according to claim 1, wherein starch is potato powder or ground rice or flour.
3, composition according to claim 1, wherein fiber is rice bar powder or straw powder or paper pulp or rice husk powder or wheat husk powder.
4, composition according to claim 1, wherein to contain weight ratio be 20～30% to component starch, and it is 15～25% that fiber contains weight ratio, and it is 45～55% that mud soil contains weight ratio.
5, the described method for compositions of arbitrary claim among the preparation claim 1-4, elder generation pulverizes fiber, mud soil, then starch, fiber powder, mud soil powder is evenly mixed by described proportioning, at 60～120 ℃, pressure 3～30KG/CM
2Under be squeezed into swelling granular, dry again, be cooled to environmental temperature.
6, the purposes of each the described composition among the claim 1-4 is characterized in that composition is used for adsorptive liquid and/or gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310112076 CN1258978C (en) | 2003-11-05 | 2003-11-05 | Expanded granule carrier composition for adsorbing agricultural chemicals and its preparation and uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310112076 CN1258978C (en) | 2003-11-05 | 2003-11-05 | Expanded granule carrier composition for adsorbing agricultural chemicals and its preparation and uses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1541527A CN1541527A (en) | 2004-11-03 |
| CN1258978C true CN1258978C (en) | 2006-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310112076 Expired - Fee Related CN1258978C (en) | 2003-11-05 | 2003-11-05 | Expanded granule carrier composition for adsorbing agricultural chemicals and its preparation and uses |
Country Status (1)
| Country | Link |
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| CN (1) | CN1258978C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103804088B (en) * | 2014-02-14 | 2015-09-16 | 中国林业科学研究院亚热带林业研究所 | A kind of pesticide slow-release lagging material of containing chlopyrifos |
| CN104054702B (en) * | 2014-07-03 | 2016-01-20 | 泰安市泰山现代农业科技有限公司 | A kind of farm chemical carrier and application thereof |
| CN115362777A (en) * | 2022-08-31 | 2022-11-22 | 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） | System and method for removing saline and alkaline by soil irrigation infiltration method |
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2003
- 2003-11-05 CN CN 200310112076 patent/CN1258978C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1541527A (en) | 2004-11-03 |
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Granted publication date: 20060614 Termination date: 20091207 |