Cyhalofop-butyl ester effervescent tablets and preparation method thereof

A technology for cyhalofop-butyl and effervescent tablets, which is applied in the field of cyhalofop-butyl effervescent tablet and its preparation, can solve the problem that there is no relevant report on the research of cyhalofop-propanol effervescent tablet and the like, and achieves the beneficial effect of Environmental protection, no dust flying, easy to use effect

Inactive Publication Date: 2012-06-13
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, some varieties of effervescent tablet herbicides have entered the market in Japan, Europe and the United States, and prelimi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Cyhalofop-ethyl technical 1%

[0023] Citric acid 3%

[0024] Malic acid 2%

[0025] Sodium Carbonate 5%

[0026] K powder 1%

[0027] Sucrose 3%

[0028] Talc 15%

[0029] Diatomaceous earth 70%

[0030] According to the above formula, first mix cyhalofop-ester technical, wetting and dispersing agent (K powder), solid acid (citric acid, malic acid), carbonate (sodium carbonate), flow regulator (talc powder), filler (silicon algae) in proportion to be fully and evenly mixed; use a low-temperature ultrafine pulverizer to pulverize the above mixture to 0.3~5μm, add a binder (sucrose) made into a paste with water, stir evenly, and then use a tablet machine to tablet; dry, Whole grains, tested, sealed and packaged to obtain 1% cyhalofop-ethyl effervescent tablet.

Embodiment 2

[0032] Cyhalofop-ethyl technical 15%

[0033] Succinic Acid 10%

[0034] Sodium bicarbonate 6%

[0035] Triammonium bicarbonate 4%

[0036] Sodium lignosulfonate 3%

[0037] Sucrose Fatty Acid Ester 5%

[0038] Carboxypropyl Cellulose 5%

[0039] Titanium dioxide 10%

[0040] Bentonite 42%

[0041] According to the above formula, first mix cyhalofop-ethyl technical material, wetting and dispersing agent (sodium lignosulfonate, sucrose fatty acid ester), solid acid (succinic acid), carbonate (sodium bicarbonate, triammonium bicarbonate), The flow regulator (titanium dioxide) and the filler (bentonite) are fully and uniformly mixed in proportion; the above mixture is pulverized to 0.3~5μm by a low-temperature ultrafine pulverizer, and the binder (carboxypropyl cellulose) made into a paste with water is added, After stirring evenly, use a tablet machine to tablet; after drying, sizing, testing, sealing and packaging, the 15% cyhalofop-ethyl effervescent tablet is obtained....

Embodiment 3

[0043] Cyhalofop-ethyl technical 12%

[0044] Tartaric acid 30%

[0045] Trisodium bicarbonate 12%

[0046] Sodium alkylnaphthalene sulfonate 15%

[0047] Polyvinyl alcohol 12%

[0048] Sodium Benzoate 6%

[0049] Wheat starch 6%

[0050] Mica 7%

[0051] According to the above formula, first mix cyhalofop-ester technical, wetting and dispersing agent (sodium alkylnaphthalene sulfonate), solid acid (tartaric acid), carbonate (trisodium bicarbonate), flow regulator (sodium benzoate, wheat starch ), the filler (mica) is fully and uniformly mixed according to the proportion; the above mixture is crushed to 0.3~5μm by a low-temperature ultrafine pulverizer, and the binder (polyvinyl alcohol) that is made into a paste with water is added, and the tableting mechanism is used after stirring evenly Tablets; dried, granulated, tested, sealed and packaged to obtain 12% cyhalofop-ethyl effervescent tablets.

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PUM

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Abstract

The invention discloses a cyhalofop-butyl ester effervescent tablets and a preparation method thereof. The cyhalofop-butyl ester effervescent tablets comprises the following components in percentage by mass: 1-40 percent of cyhalofop-butyl raw drug, 5-30 percent of solid acid, 5-30 percent of carbonate, 1-15 percent of wetting dispersant agent, 0-15 percent of flowing adjuster, 3-15 percent of binding agent and the balance of fillers for compensating to 100 percent. The preparation method comprises the following steps of: sufficiently and uniformly mixing all the materials according to proportions, crushing the mixed material to 0.3-5mu m with a low-temperature ultra-micro crusher, adding water and mixing to form a paste binding agent, tableting with a tableting machine, drying, granulating, detecting, and carrying out sealed package to obtain the finished tablets. The cyhalofop-butyl ester effervescent tablets are convenient to use and can be used for effectively preventing multiple weeds in grass family, sedge family, broad leaf family and the like of rice.

Description

technical field [0001] The invention relates to a herbicide, in particular to a cyhalofop-ethyl effervescent tablet for controlling rice weeds and a preparation method thereof. Background technique [0002] Rice is one of the three major food crops in the world. It is of great significance to control weeds in rice fields, promote the sustainable development of rice, achieve agricultural efficiency, and increase farmers' production. At present, most of the herbicides suitable for paddy fields are bensulfuron-methyl, pretilachlor, butachlor and other emulsifiable concentrates, wettable powders, suspension concentrates and other herbicides. Generally, they need to be diluted with water or formulated into poisonous soil before spraying. Or spreading, the operation is cumbersome and labor-intensive, and it is easy to cause damage to the crops or the health of the applicator due to inaccurate dosage or application, and pollute the environment. Therefore, there is an urgent need fo...

Claims

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Application Information

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IPC IPC(8): A01N39/04A01N25/34A01P13/00
Inventor 钱坤郭艳珍何林王祥尊彭邈樊钰虎厉阗
Owner SOUTHWEST UNIVERSITY
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