CN101438705A - Technique for preparing biological pesticide chamaejasmine aqueous emulsion - Google Patents
Technique for preparing biological pesticide chamaejasmine aqueous emulsion Download PDFInfo
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- CN101438705A CN101438705A CNA2007101151278A CN200710115127A CN101438705A CN 101438705 A CN101438705 A CN 101438705A CN A2007101151278 A CNA2007101151278 A CN A2007101151278A CN 200710115127 A CN200710115127 A CN 200710115127A CN 101438705 A CN101438705 A CN 101438705A
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- chamaejasmine
- aqueous emulsion
- biological pesticide
- fatty acid
- solvent
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Abstract
The invention relates to a preparation process for a biological pesticide chamaejasmine aqueous emulsion. The preparation process takes roots and stalks of Stellera chamaejasme as the raw material and takes one or the mixture of ethanol, methanol, propanol, propylene glycol, normal butyl alcohol, acetone and isopropyl ketone as a solvent to prepare the biological pesticide chamaejasmine aqueous emulsion by extracting, filtering, concentration with pressure reduction and grinding process, and the content of the new chamaejasmine A, i.e., the active component of the Stellera chamaejasme in the finished product, ranges from 1.1 percent to 5 percent. The prepared product has the advantages of high efficiency, low toxicity, no residual, easily obtained raw material, low cost and simple process.
Description
One, technical field:
The invention belongs to the agricultural chemicals preparation field, specifically is a kind of preparation technology of biological pesticide chamaejasmine aqueous emulsion.
Two, background technology:
Produce " pesticide hazards " owing to chemical pesticide has caused serious environmental to pollute, and destroyed the natural equilibrium of the ecosystem, therefore, biopesticide has become the choice drug of prevention and elimination of disease and pests.In China, more existing plant pesticides are formally registered as nicotine, fennel punt-pole element, Tea Saponin, kuh-seng etc., and wherein a part enters the industrialization trial production stage.But present biopesticide insecticidal effect is still very undesirable, and insecticidal spectrum is relative narrower also.
Three, summary of the invention:
The objective of the invention is to overcome the defective of prior art, for the public provides a kind of preparation technology of biological pesticide chamaejasmine aqueous emulsion, product is efficient, low toxicity, noresidue, raw materials used being easy to get, and with low cost, technology is simple.
The objective of the invention is to realize by following proposal.
Technical scheme of the present invention is: with Chinese Stellera Root (Stellera Chamajasme L.) plant roots, stem is raw material, with a kind of in ethanol, methyl alcohol, the n-butanol is solvent, produces biological pesticide chamaejasmine aqueous emulsion through extraction, filtration, concentrating under reduced pressure, grinding technics; Wherein, the content of the active ingredient new stellerin A of winter daphne chamaejasmine (Neochamaejovsmin A) is 1.1-5% in the finished product.
In the such scheme, Chinese Stellera Root extract plant root, stem are pulverized, extracted 2-8 hour down at 60-85 ℃ with the solvent of 6-20 times of weight of material quantity, filter, filtrate is evaporated to 50%-85% under 600-700mmHg, through grind biological pesticide chamaejasmine aqueous emulsion.
In the such scheme, nonionic can also be added in the concentrate or/and a kind of or its compound, amphoteric surfactant, quaternary surfactant, the amino acid surfactant in the anionic surfactant, its addition is the 1-15% of concentrate gross weight, wherein the ratio of compound is an anion surfactant: the weight ratio 1:0.15-7.5 of non-ionic surface active agent, stirred then 1-2 hour, grind biological pesticide chamaejasmine aqueous emulsion.
In the such scheme, surfactant is the HLB value at the non-ionic surface active agent of 9-16 or/and anion surfactant; Non-ionic surface active agent is a C12-C18 saturated alkoxides APEO, C12-C18 alkylphenol polyoxyethylene, anhydrous sorbitol APEO, fatty acid polyethylene glycol ester, fatty acid alkyl alcohol amide; Anion surfactant is alkylbenzenesulfonate, alkylsulfonate, sulfosuccinic acid C6-C12 alkyl fat, C12-C18 saturated alkyl aliphatic alcohol sulfate, petroleum sulfonate.
The present invention has following characteristics:
1, products obtained therefrom have efficiently, broad spectrum activity, can effectively prevent eliminating aphis, snout moth's larva, mole cricket, locust, mythimna separata, cabbage caterpillar, cotton bollworm etc., the deinsectization effect is more than 98%.
2, products obtained therefrom is applied widely, is applicable to paddy rice, wheat, corn, soybean, cotton, fruit tree, tealeaves, vegetables, tobacco, flowers etc.
3, raw materials used is natural plants, and biological degradation is fast, non agricultural chemical residuum, and to the person poultry harmless, good to environment compatibility, production process is pollution-free, and technology is simple, and is with low cost.
As seen from last, technology of the present invention has overcome the defective of prior art, and a kind of efficient, wide spectrum, noresidue, raw material are easy to get, with low cost, the simple biological pesticide chamaejasmine aqueous emulsion preparation technology of technology for the public provides.
Four, concrete real-time mode:
Be embodiments of the invention below, the present invention is not limited only to described embodiment.
Embodiment one
Chinese Stellera Root plant roots, stem 500g are crushed to 60 orders, and loss on drying 10% (moisture) was extracted 2 hours down at 78 ℃ with ethanol 3000g, filter, filtered fluid is evaporated to 85% under 600-700mmHg, is ground to below 2 μ, make biological pesticide chamaejasmine aqueous emulsion with colloid mill.
Embodiment two
Chinese Stellera Root plant roots, stem 500g are crushed to 50 orders, loss on drying 6% (moisture), extracted 8 hours down at 60 ℃ with methyl alcohol 10000g, filter, filtered fluid is evaporated to 50% under 600-700mmHg, adds fatty acid alkyl alcohol amide 50g, continue to stir 2 hours, be ground to below 2 μ with colloid mill, make biological pesticide chamaejasmine aqueous emulsion.
Embodiment three
Chinese Stellera Root plant roots, stem 500g are crushed to 30 orders, loss on drying 12% (moisture), extracted 4 hours down at 78 ℃ with ethanol 3100g, filter, filtered fluid is evaporated to 70% under 600-700mmHg, adds alkyl benzene sulphonate sodium salt 22g, polyoxyethylene octadecanol 3.3g, continue to stir 1 hour, be ground to below 2 μ with colloid mill, make biological pesticide chamaejasmine aqueous emulsion.
Claims (2)
1, a kind of preparation technology of biological pesticide chamaejasmine aqueous emulsion, it is characterized in that with Chinese Stellera Root plant roots, stem be raw material, with a kind of in ethanol, methyl alcohol, the n-butanol is solvent, produces biological pesticide chamaejasmine aqueous emulsion through extraction, filtration, concentrating under reduced pressure, grinding technics; Wherein, the content of the active ingredient new stellerin A of winter daphne chamaejasmine is 1.1-5% in the finished product; With Chinese Stellera Root extract plant root, stem is pulverized, solvent with material quantity 6-20 times weight extracted 2-8 hour down at 60-85 ℃, filter, filtrate is evaporated to 50%-85% under 600-700mmHg, add fatty acid alkyl alcohol amide or anionic surfactant or nonionic and anionic surfactant compound in the concentrate, its addition is the 1-15% of concentrate gross weight, the ratio of compound is an anion surfactant: the weight ratio 1:0.15-7.5 of non-ionic surface active agent, stirred then 1-2 hour, grind biological pesticide chamaejasmine aqueous emulsion.
2, the preparation technology of a kind of biological pesticide chamaejasmine aqueous emulsion according to claim 1, it is characterized in that non-ionic surface active agent is a C12-C18 saturated alkoxides APEO, the C12-C18 alkylphenol polyoxyethylene, the anhydrous sorbitol APEO, fatty acid polyethylene glycol ester, fatty acid alkyl alcohol amide; Anion surfactant is alkylbenzenesulfonate, alkylsulfonate, sulfosuccinic acid C6-C12 alkyl fat, C12-C18 saturated alkyl aliphatic alcohol sulfate, petroleum sulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101151278A CN101438705A (en) | 2007-11-23 | 2007-11-23 | Technique for preparing biological pesticide chamaejasmine aqueous emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101151278A CN101438705A (en) | 2007-11-23 | 2007-11-23 | Technique for preparing biological pesticide chamaejasmine aqueous emulsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101438705A true CN101438705A (en) | 2009-05-27 |
Family
ID=40723427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101151278A Withdrawn CN101438705A (en) | 2007-11-23 | 2007-11-23 | Technique for preparing biological pesticide chamaejasmine aqueous emulsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101438705A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103598265A (en) * | 2013-11-11 | 2014-02-26 | 丹阳市清云农业发展有限公司 | Insect-expelling and disinsection composition for organic rice and preparation method thereof |
| CN103766410A (en) * | 2012-10-26 | 2014-05-07 | 中国科学院兰州化学物理研究所 | Plant-source nematicide for preventing and curing ditylenchus destructor of angelica sinensis, and application of nematicide |
| CN106508983A (en) * | 2016-10-21 | 2017-03-22 | 赖丰光 | Pesticide fertilizer capable of preventing crop armyworms |
| CN107114414A (en) * | 2017-05-25 | 2017-09-01 | 中国科学院西北高原生物研究所 | The application of the anti-Wolfberry Aphid of The Leaves And Stems of Stellera Chamaejasme extract |
-
2007
- 2007-11-23 CN CNA2007101151278A patent/CN101438705A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103766410A (en) * | 2012-10-26 | 2014-05-07 | 中国科学院兰州化学物理研究所 | Plant-source nematicide for preventing and curing ditylenchus destructor of angelica sinensis, and application of nematicide |
| CN103766410B (en) * | 2012-10-26 | 2016-04-13 | 中国科学院兰州化学物理研究所 | A kind of plant resource nematocide and uses thereof preventing and treating Radix Angelicae Sinensis fiber crops stomatosis |
| CN103598265A (en) * | 2013-11-11 | 2014-02-26 | 丹阳市清云农业发展有限公司 | Insect-expelling and disinsection composition for organic rice and preparation method thereof |
| CN106508983A (en) * | 2016-10-21 | 2017-03-22 | 赖丰光 | Pesticide fertilizer capable of preventing crop armyworms |
| CN107114414A (en) * | 2017-05-25 | 2017-09-01 | 中国科学院西北高原生物研究所 | The application of the anti-Wolfberry Aphid of The Leaves And Stems of Stellera Chamaejasme extract |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |