CN1957702A - Insecticide of containing rotenone, and preparation method - Google Patents
Insecticide of containing rotenone, and preparation method Download PDFInfo
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- CN1957702A CN1957702A CN 200610125016 CN200610125016A CN1957702A CN 1957702 A CN1957702 A CN 1957702A CN 200610125016 CN200610125016 CN 200610125016 CN 200610125016 A CN200610125016 A CN 200610125016A CN 1957702 A CN1957702 A CN 1957702A
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- rotenone
- insecticide
- emulsifier
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Abstract
An insecticide containing retenone is prepared from the plant containing retenone through drying in the air, pulverizing, and supercritical CO2 extrating to obtain raw retenone oil, mixing it with emulsifier and assistant, and stirring.
Description
Technical field
The present invention relates to a vegetative insecticide, especially contain the insecticide of rotenone.
Background technology
In decades, for killing off plant pests, people produce and use chemical insecticide in a large number, bring huge pollution to ecotope, and public hazard incident constantly occurs.Seek efficient, low toxicity, the less-persistent pesticide new trend that becomes international.Rotenone becomes the first-selected plant pesticide that the United Nations determines as the extremely strong low toxicity and low residue plant insecticide of selectivity.
Rotenone has the broad spectrum insecticide effect, can prevent and treat 800 various pests, insect is played action of contace poison and stomach poison function, have selectivity, insect does not have seemingly-dead property, be difficult for developing immunity to drugs, noresidue to plant safety, is not hindered natural enemy, use the back that crops quality is had no adverse effects, and have the plant growth of promotion effect.
Rotenone can carry out compositely with arbitrary organophosphorous pesticide and lipid agricultural chemicals, can reduce the use content of organophosphorous pesticide, reduces the toxicity of organophosphorous pesticide, reduces pesticide resistance, plays synergistic effect, and therefore, rotenone is used often at mixed insecticide.Can also act on fishery, aquatic products industry, treatment fish, prawn disease, nuisanceless cleaning up the pond, its purposes is very extensive.
Can rotenone substitute the high malicious synthetic pesticide that uses at present as large botanical pesticide, crucial problem is how to solve that the rotenone content that extracts is low from contain the rotenoid plant, rotenone chemical property instability, shorten the time that rotenone causes insect death, makes it to become fast-acting insecticide.
Summary of the invention
The quick-acting insecticides that contain rotenone that the purpose of this invention is to provide a kind of rotenone content height, stable chemical performance.
Another object of the present invention provides a kind of method for producing insecticide that contains rotenone.
Technical scheme of the present invention is:
A kind of insecticide that contains rotenone is characterized in that it is by comprising that following raw materials in weight portion makes:
Rotenone 7.5-7.8 part, emulsifier 5-10 part, stabilizing agent 0.5-3 part.
A kind of insecticide that contains rotenone is characterized in that it is by comprising that following raw materials in weight portion makes:
Phoxim 17.3-18 part, rotenone 0.7-0.75 part, emulsifier 3-10 part.
A kind of insecticide that contains rotenone is characterized in that it is by comprising that following raw materials in weight portion makes:
Isocarbophos content 24.3-25.5 part, rotenone 0.7-0.75, emulsifier 2-8 part.
In above-mentioned each proportion of raw materials component, adopt organic solvent for supplying material.
The insecticide that contains rotenone of the present invention, the emulsifier that is adopted are 0204,1210, a kind of or wherein several combination among 1210-C, the 107-A, 202,205,207.
The insecticide that contains rotenone of the present invention, the organic solvent that is adopted are a kind of or wherein several combination in benzene, the mixed benzene,toluene,xylene.
The insecticide that contains rotenone of the present invention, the stabilizing agent that is adopted are a kind of or wherein several combinations in hydroquinones, 2002,264 age resistor.
Preparation process of the present invention comprises: extract, be mixed, can, packing.
Preparation process is: will contain rotenoid the plant drying, pulverize, carry out supercritical extract, obtain 25% rotenone crude oil; By proportioning crude oil, emulsifier, stabilizing agent, solvent are put into the preparation still, after fully stirring, obtain containing the insecticide emulsion list agent of rotenone; In proportion the agent of insecticide emulsion list, organophosphorous pesticide, emulsifier, the solvent that contain trifoliate jewelvine are put into the preparation still again, after fully stirring, obtain containing the insecticide of rotenone.Wherein,
Extraction: the extracting method that is exactly 25% rotenone crude oil, be to contain the root of rotenoid plant or leaf through the pulverizing of drying in the shade, put into supercritical extraction reactor, with the carbonic acid gas is fluid, benzene or dimethylbenzene are entrainer, the temperature of its extraction, pressure, flow, time, decide according to different extracts and extraction quantity, and keep the fully isolated extract in extraction back, after testing: the rotenone content mark answers 〉=25%.
Be mixed, also cry composite: be exactly to contain the insecticide list agent of rotenone and the compounding method of mixed agent, be ready to various raw material, after the following raw material of condition of stirring are all put into the preparation still by the part by weight of insecticide of containing rotenone prescription, continue to stir 30 minutes, stop to stir, eliminate the dead angle, stirred again 10 minutes, sampling inspection, every index is qualified, and the emulsion input that can will be mixed is left standstill in the jar, leaves standstill 6 hours.Get final product can, packing.
Can:, adopt can, spiral cover production line to carry out canned, spiral cover, and the can amount is tested qualified can the packing according to product specification.
Packing: pack, store, transport according to national standard.
Describedly contain the rotenoid plant and comprise Derris plant, reticulate millettia platymiscium and Africa mountain soya bean leaf.
Advantage of the present invention is: the rotenone crude oil that the present invention extracted, adopt supercritical extract, and product active constituent content height, cost be low, easily ensure the quality of products, and can be used for being mixed, and also can be used for concentrating, crystallization.What be mixed contains 7.5% rotenone insecticide, stable chemical performance, good disinsection effect, insect had tag, stomach toxicity and repellent action, insect to various crop such as vegetables, fruit tree, tealeaves, tobacco leaf, mulberry treies has good insecticidal effect, can be mixed with arbitrary organic phosphor, chrysanthemum fat, play synergistic effect.What be mixed contains 18% suffering. and the insecticide of rotenone is efficient, low toxicity, characteristics such as dosage is few, insecticidal spectrum is wide, degraded is fast, noresidue, can prevent and treat the insect of economic crops such as fruit tree, vegetables, tobacco leaf, tealeaves.What be mixed contains 25% water amine. and the insecticide of rotenone is the Insecticidal and acaricidal agent that combines chemical pesticide and plant pesticide advantage, have stomach toxicity, tag, ovicidal action, characteristics such as result of use is good, efficacy stability all have the better prevention effect to citrus leaf-miner, citrus and other scale insect of fruit tree, rice grass rice gall midge, paddy stem borer, rice fulgorid etc.
Embodiment
In order to understand essence of the present invention in more detail, now technology contents of the present invention is described with embodiment.
Embodiment
Contain the preparation of rotenone crude oil:
Get and be ground in the 80 purpose Africa mountain soya bean leaf dry powder adding extraction kettle, with the supercritical CO 2 is extractant, the benzene that adds 5% (quality) is entrainer, at pressure is that 25Mpa, temperature are to extract under 50 ℃ the condition, amount stream is 6: 1 for the mass ratio of CO2 and dry powder in the extraction system, the extraction time is 3h, the extract that from separator, separates, and rotenone content reaches 25%.
Contain the preparation of 7.5% rotenone insecticide:
By weight ratio, get 30.4 kilograms of the 25% rotenone crude oil that obtain of extraction, emulsifier 205 is got 4 kilograms, and 207 get 2 kilograms, and stabilizing agent 2002 is got 1 kilogram, 246 age resistor and got 0.5 kilogram, supplies material organic solvent dimethylbenzene and gets 62.1 kilograms.After all raw materials being put into the preparation still under condition of stirring, continuous stirring 30 minutes stops to stir, and eliminates the dead angle, stirred again 10 minutes, and sampling inspection, every index is qualified, can leave standstill, canned, packing.
Because the rotenone content of this insecticide is about 7.5%, so this product also claims 7.5% rotenone emulsifiable solution.
Contain the preparation of the insecticide mixture agent of rotenone:
By weight ratio, get 19.5 kilograms of the Phoxim original medicines of content 91.9%, the rotenone insecticide of content 7.5% is got 9.6 kilograms, and emulsifier 205 is got 3.5 kilograms, 207 and got 1.5 kilograms, supplies material organic solvent dimethylbenzene and gets 65.8 kilograms.After all raw materials being put into the preparation still under condition of stirring, continuous stirring 30 minutes stops to stir, and eliminates the dead angle, stirred again 10 minutes, and sampling inspection, every index is qualified, can leave standstill, can, packing.
Because the suffering of this insecticide. rotenone content is about 18%, so this product also claims 18% suffering. rotenone emulsifiable solution.
Another contains the preparation of the insecticide emulsion mixed agent of rotenone:
By weight ratio, get 63 kilograms of content 40% cream of isocarbophos, 7.5% rotenone emulsifiable solution is got 9.6 kilograms, emulsifier 107A gets 2 kilograms, dimethylbenzene is got 25.4 kilograms, under condition of stirring, put into the preparation still after, continuous stirring 30 minutes, stop to stir, eliminate the dead angle, stirred sampling inspection again 10 minutes, every index is qualified, can leave standstill, can, packing.
Because the water amine of this worm agent of stopping. the content of rotenone is about 25%, so this product also claims 25% water amine. rotenone emulsifiable solution.
In the above-described embodiments, the organic solvent of supplying material is got other benzene, the effect of mixing benzene, toluene is the same.In like manner, emulsifier and stabilizing agent also are like this.
In above embodiment, the weight portion of percentage medicine all will be through converting, for example: 30.4 kilograms of 25% rotenone oil be scaled 25% * 30.4=7.6 kilogram rotenone oil, and 91.9% 19.5 kilograms of Phoxim original medicines be scaled 91.9% * 19.5=17.9 kilogram Phoxim original medicine, all in ratio range.
Claims (8)
1, a kind of insecticide that contains rotenone is characterized in that it is by comprising that following raw materials in weight portion makes:
Rotenone 7.5-7.8 part, emulsifier 5-10 part, stabilizing agent 0.5-3 part.
2, a kind of insecticide that contains rotenone is characterized in that it is by comprising that following raw materials in weight portion makes:
Phoxim 17.3-18 part, rotenone 0.7-0.75 part, emulsifier 3-10 part.
3, a kind of insecticide that contains rotenone is characterized in that it is by comprising that following raw materials in weight portion makes:
Isocarbophos content 24.3-25.5 part, rotenone 0.7-0.75 part, emulsifier 2-8 part.
4, according to claim 1 or 2 or 3 described insecticides, it is characterized in that:
Described emulsifier can be 0204,1210, a kind of or wherein several combination among 1210-C, the 107-A, 202,205,207.
5, insecticide according to claim 1 is characterized in that:
Stabilizing agent can be a kind of or wherein several combination in hydroquinones, 2002,246 age resistor.
6, according to claim 1 or 2 or 3 described insecticides, it is characterized in that:
In described each proportion of raw materials component, adopt organic solvent for supplying material, this organic solvent can be a kind of or wherein several combination in benzene, the mixed benzene,toluene,xylene.
7, a kind of according to claim 1 or 2 or 3 described insecticide preparation methods, it is characterized in that:
Root, stem or the leaf that will contain the rotenoid plant dry in the shade, pulverize, adopt the method for supercritical extract, the gained powder is put in the supercritical extraction reactor, with the carbonic acid gas is fluid, benzene or dimethylbenzene are entrainer, the temperature of its extraction, pressure, flow, time, decide according to different extracts and extraction quantity, and keep fully isolating 25% rotenone crude oil after the extraction; In proportion crude oil, emulsifier, stabilizing agent, solvent, put into the preparation still, after fully stirring, obtain containing the insecticide emulsion list agent of rotenone, through can, pack and be finished product; In proportion the agent of insecticide emulsion list, organophosphorous pesticide, emulsifier, the solvent that contain trifoliate jewelvine are put into the preparation still again, after fully stirring, obtain containing the insecticide emulsion mixed agent of rotenone, be finished product through can, packing.
8, insecticide preparation method according to claim 7 is characterized in that:
Described supercritical extract is a fluid with the carbonic acid gas, and benzene or dimethylbenzene are entrainer, and the temperature of its extraction, pressure, flow, time are to decide according to different extracts and extraction quantity, is fully extracting crude oil rotenone content 〉=25% that separate the back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610125016 CN1957702A (en) | 2006-11-07 | 2006-11-07 | Insecticide of containing rotenone, and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610125016 CN1957702A (en) | 2006-11-07 | 2006-11-07 | Insecticide of containing rotenone, and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1957702A true CN1957702A (en) | 2007-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610125016 Withdrawn CN1957702A (en) | 2006-11-07 | 2006-11-07 | Insecticide of containing rotenone, and preparation method |
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| CN (1) | CN1957702A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805333A (en) * | 2010-04-16 | 2010-08-18 | 湖南大学 | Cyclorotenoid, preparation method and application thereof |
-
2006
- 2006-11-07 CN CN 200610125016 patent/CN1957702A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805333A (en) * | 2010-04-16 | 2010-08-18 | 湖南大学 | Cyclorotenoid, preparation method and application thereof |
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