CN104222085A - A producing method of an efficient haloxyfop-methyl microemulsion - Google Patents
A producing method of an efficient haloxyfop-methyl microemulsion Download PDFInfo
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- CN104222085A CN104222085A CN201310230595.5A CN201310230595A CN104222085A CN 104222085 A CN104222085 A CN 104222085A CN 201310230595 A CN201310230595 A CN 201310230595A CN 104222085 A CN104222085 A CN 104222085A
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- haloxyfop
- methyl
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- toluene
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a producing method of an efficient haloxyfop-methyl microemulsion. A product of the method belongs to the field of herbicides. Efficient haloxyfop-methyl, toluene, ethanol, alkyl sodium sulfonate and water are adopted as raw materials and blended under specific conditions to obtain a finished product. The producing method has advantages of using of universal equipment, simple process, mild reaction conditions, no discharge of pollutants or waste and high product quality. The product is low in content of organic solvents, high in dispersibility in water, high in activity, high in utilization rate, high in permeability to target weeds, good in adhesive force, and stable in product diluents.
Description
Technical field
The invention belongs to weed killer herbicide field, particularly relate to a kind of production method of haloxyfop-r-methyl microemulsion.
Background technology
Haloxyfop-r-methyl has another name called haloxyfop-r-methyl, and molecular formula is C16H13ClF3NO4, haloxyfop-r-methyl
It is selective herbicide after a seedling, can be absorbed by the leaf of grassy weed very soon after cauline leaf process, conduct to whole plant, accumulate in plant meristematic tissue, weeds stop growing very soon after absorption medicament, tender tissue and eugonic organize first suppressed, suppress acetyl-CoA carboxylase in plant corpus, cause fatty acid biosynthesis block and kill weeds, within after dispenser 48 hours, can be observed the damage symptoms of weeds, first be that the meristematic regions such as bud and joint starts browning, then lobus cardiacus purpling gradually, turn yellow, until complete stool is withered, Lao Ye reveal any symptoms a little later, first purpling before withering, orange or red, generally 6-10 days is needed to weeds death from dispenser, at low dosage, under the comparatively large or drought condition of weeds, weeds sometimes can not be completely dead, but be subject to serious suppression by medicine plant growth, show as tip of a root blackout, overground part is short and small, ripening rate is extremely low, sprinkling falls into the medicament of soil easily by root absorption, also herbicide effect can be played.Haloxyfop-r-methyl is mainly used in the broad leaf crop fields such as soybean, cotton, peanut, rape and wild cabbage and prevents and kill off the grassy weeds such as amur foxtail, barnyard grass, lady's-grass, green foxtail, eleusine indica, wild oat, to broadleaved herb and nutgrass flatsedge invalid, to broad leaf crop safety.Product of the present invention take haloxyfop-r-methyl as major ingredient, made by series of process for auxiliary material with organic solvent, cosolvent, surfactant, water, this production method has series of advantages such as use common apparatus, technique is simple, reaction condition is gentle, pollution-free waste discharge, production cost are low, good product quality etc., product organic solvent content is low, good dispersion in water, active high, availability is high, strong to target body weeds permeability, adhesive force is good, and the dilution of product is stablized.
Summary of the invention
The problem that the present invention mainly solves is to provide a kind of production method of haloxyfop-r-methyl microemulsion, produce this product with haloxyfop-r-methyl, toluene, ethanol, sodium alkyl sulfonate, water for raw material, finished product is obtained by blending under given conditions, the advantage of this production method is: use common apparatus, technique is simple, reaction condition is gentle, pollution-free waste discharge, good product quality.The raw material weight proportioning of producing the use of this product is: haloxyfop-r-methyl 12-14%, toluene 10-12%, ethanol 14-16%, sodium alkyl sulfonate 6-8%, surplus are water.
The present invention can be achieved through the following technical solutions:
A production method for haloxyfop-r-methyl microemulsion, is characterized in that being made up of following steps:
(1) first added by the toluene of formula ratio in the first agitator tank, start under normal temperature to stir, the rotating speed of agitator is 30 turns-35 revs/min, adds the ethanol of formula ratio, haloxyfop-r-methyl while stirring successively, stirring reaction 1.0-1.2 hour.
(2) first added by the water of formula ratio in high-speed stirred tank, start under normal temperature to stir, the rotating speed of agitator is 50 turns-60 revs/min, adds the sodium alkyl sulfonate of formula ratio while stirring, is stirred to sodium alkyl sulfonate and all dissolves; The rotating speed heightening agitator in fast agitator tank is 210-220 rev/min, slowly the haloxyfop-r-methyl being dissolved in toluene and ethanol is added high-speed stirred tank, obtains finished product after stirring reaction 1.2-1.4 hour.
Further technical scheme of the present invention is:
The purity of described haloxyfop-r-methyl is 11%.
The stirring reaction time described in step (1) is 1.1 hours; The high-speed stirred reaction time described in step (2) is 1.3 hours.
Step (1), normal temperature described in step (2) are 5-35 DEG C.
The invention has the beneficial effects as follows: the production method providing a kind of haloxyfop-r-methyl microemulsion, the method tool has the following advantages: technique is simple, and environmental pollution is little, reaction time is short, and reaction condition is gentle, and product is strong to target body weeds permeability, adhesive force is good, and the effect of anti-weeding strengthens greatly.
Embodiment
The present invention is further described by following examples.
Embodiment 1:
In the first agitator tank first by account for total amount be 10% toluene add, start under normal temperature to stir, the rotating speed of agitator is 30 turns-35 revs/min, add successively while stirring account for total amount be 16% ethanol, account for the haloxyfop-r-methyl that total amount is 12%, stirring reaction 1.0-1.2 hour.In high-speed stirred tank first by account for total amount be 54% water add, start under normal temperature stir, the rotating speed of agitator is 50 turns-60 revs/min, adds while stirring and accounts for the sodium alkyl sulfonate that total amount is 8%, be stirred to sodium alkyl sulfonate and all dissolve; The rotating speed heightening agitator in fast agitator tank is 210-220 rev/min, slowly the haloxyfop-r-methyl being dissolved in toluene and ethanol is added high-speed stirred tank, obtains finished product after stirring reaction 1.2-1.4 hour.
Embodiment 2:
In the first agitator tank first by account for total amount be 11% toluene add, start under normal temperature to stir, the rotating speed of agitator is 30 turns-35 revs/min, add successively while stirring account for total amount be 15% ethanol, account for the haloxyfop-r-methyl that total amount is 13%, stirring reaction 1.0-1.2 hour.In high-speed stirred tank first by account for total amount be 54% water add, start under normal temperature stir, the rotating speed of agitator is 50 turns-60 revs/min, adds while stirring and accounts for the sodium alkyl sulfonate that total amount is 7%, be stirred to sodium alkyl sulfonate and all dissolve; The rotating speed heightening agitator in fast agitator tank is 210-220 rev/min, slowly the haloxyfop-r-methyl being dissolved in toluene and ethanol is added high-speed stirred tank, obtains finished product after stirring reaction 1.2-1.4 hour.
Embodiment 3:
In the first agitator tank first by account for total amount be 12% toluene add, start under normal temperature to stir, the rotating speed of agitator is 30 turns-35 revs/min, add successively while stirring account for total amount be 14% ethanol, account for the haloxyfop-r-methyl that total amount is 14%, stirring reaction 1.0-1.2 hour.In high-speed stirred tank first by account for total amount be 54% water add, start under normal temperature stir, the rotating speed of agitator is 50 turns-60 revs/min, adds while stirring and accounts for the sodium alkyl sulfonate that total amount is 6%, be stirred to sodium alkyl sulfonate and all dissolve; The rotating speed heightening agitator in fast agitator tank is 210-220 rev/min, slowly the haloxyfop-r-methyl being dissolved in toluene and ethanol is added high-speed stirred tank, obtains finished product after stirring reaction 1.2-1.4 hour.
Claims (4)
1. a production method for haloxyfop-r-methyl microemulsion, uses the weight proportion of raw material to be: comprise haloxyfop-r-methyl 12-14%, toluene 10-12%, ethanol 14-16%, sodium alkyl sulfonate 6-8%, surplus be water; It is characterized in that: the toluene of formula ratio first adds by step (1) in the first agitator tank, start under normal temperature to stir, the rotating speed of agitator is 30 turns-35 revs/min, adds the ethanol of formula ratio, haloxyfop-r-methyl while stirring successively, stirring reaction 1.0-1.2 hour; The water of formula ratio first adds by step (2) in high-speed stirred tank, starts to stir under normal temperature, and the rotating speed of agitator is 50 turns-60 revs/min, adds the sodium alkyl sulfonate of formula ratio while stirring, is stirred to sodium alkyl sulfonate and all dissolves; The rotating speed heightening agitator in fast agitator tank is 210-220 rev/min, slowly the haloxyfop-r-methyl being dissolved in toluene and ethanol is added high-speed stirred tank, obtains finished product after stirring reaction 1.2-1.4 hour.
2. the production method of a kind of haloxyfop-r-methyl microemulsion as claimed in claim 1, is characterized in that: the purity of described haloxyfop-r-methyl is 11%.
3. the production method of a kind of haloxyfop-r-methyl microemulsion as claimed in claim 1, is characterized in that: the stirring reaction time described in step (1) is 1.1 hours; The high-speed stirred reaction time described in step (2) is 1.3 hours.
4. the production method of a kind of haloxyfop-r-methyl microemulsion as claimed in claim 1, is characterized in that: step (1), normal temperature described in step (2) are 5-35 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310230595.5A CN104222085A (en) | 2013-06-10 | 2013-06-10 | A producing method of an efficient haloxyfop-methyl microemulsion |
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| CN201310230595.5A CN104222085A (en) | 2013-06-10 | 2013-06-10 | A producing method of an efficient haloxyfop-methyl microemulsion |
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| CN104222085A true CN104222085A (en) | 2014-12-24 |
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| CN201310230595.5A Pending CN104222085A (en) | 2013-06-10 | 2013-06-10 | A producing method of an efficient haloxyfop-methyl microemulsion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113303333A (en) * | 2021-06-11 | 2021-08-27 | 成都科宏达化学有限责任公司 | Microemulsion herbicide of diquat and haloxyfop-R-methyl and preparation method thereof |
| CN113748900A (en) * | 2021-09-16 | 2021-12-07 | 盐城工学院 | Method for cleaning reed and spartina alterniflora in suaeda salsa community on beach |
-
2013
- 2013-06-10 CN CN201310230595.5A patent/CN104222085A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113303333A (en) * | 2021-06-11 | 2021-08-27 | 成都科宏达化学有限责任公司 | Microemulsion herbicide of diquat and haloxyfop-R-methyl and preparation method thereof |
| CN113748900A (en) * | 2021-09-16 | 2021-12-07 | 盐城工学院 | Method for cleaning reed and spartina alterniflora in suaeda salsa community on beach |
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Application publication date: 20141224 |