Unlock instant, AI-driven research and patent intelligence for your innovation.

Glyphosate soluble effervescent tablet and preparation method thereof

An effervescent tablet and glyphosate technology, applied in botany equipment and methods, herbicides, algicides, biocides, etc., can solve problems such as long disintegration time, high packaging cost, and user injury. Achieve the effects of no dust flying, accurate single piece weight, and simple production process

Inactive Publication Date: 2013-12-11
FIVESTAR NANTONG CHEM
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, glyphosate preparations in my country are mainly water, powder and granules. Due to the low solubility of glyphosate and salt in water, water products generally have low content and have gradually withdrawn from the market; powder is due to its serious flying Drift property, serious injury is arranged to user; Granule is more advanced dosage form, but compared with disintegrating effervescent tablet of the present invention, there are defects such as long disintegration time, relatively difficult measurement, high packaging cost, while dissolvable effervescent tablet Due to its specific shape, accurate single tablet weight, no dust flying, easy to use, and the characteristics of foaming and boiling, rapid disintegration and rapid dissolution, it is a new type of environmentally friendly pesticide formulation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of glyphosate-soluble effervescent tablets with 10% glyphosate content.

[0019] (1) Preparation of 50% glyphosate masterbatch: 52.6kg of accurately measured 95% glyphosate technical product, 2kg of surfactant-sodium lignosulfonate, 6kg of sodium naphthalenesulfonic acid condensate, and inert filler ——Glucose 10kg, ammonium sulfate 28.5kg in a mixer, mix evenly, crush it to more than 150 mesh, collect the powder in another mixer, add 9kg of binder-10% PEG6000 aqueous solution and knead, The columnar wet granules are obtained by extrusion granulation, dried until the water content is less than 1%, and then sieved by a granulator vibrating sieve, and 30-60 mesh granules are taken for use.

[0020] (2) Tablet compression: Mix 50kg of the masterbatch accurately measured in the above (1), 48kg of potassium carbonate, and 2kg of flow aid—sodium sulfate in a mixer, and press it into a round shape in a tablet machine. The tablet has a diameter of 12mm and a thickne...

Embodiment 2

[0023] Preparation of glyphosate-soluble effervescent tablets with 68% glyphosate content.

[0024] (1) Preparation of 89.5% glyphosate masterbatch: 94.2kg of accurately measured 95% glyphosate technical product, surfactant—maleic acid-acrylic acid copolymer sodium salt 3kg, inert filler—ammonium sulfate 1.9 kg is mixed evenly in a mixer, crushed to more than 150 mesh, the powder is collected in another mixer, and 9 kg of binder-10% aqueous solution of water-soluble starch is added to knead, and obtained by extrusion granulation The columnar wet granules are dried until the water content is less than 1%, and then sieved by a granulator vibrating sieve, and 30-60 mesh granules are taken for use.

[0025] (2) Tablet compression: Mix 76kg of masterbatch accurately measured in (1) above, 22kg of sodium carbonate, 1kg of flow aid—magnesium stearate, and 1kg of white carbon black in a mixer. The machine is conventionally compressed into round tablets with a diameter of 24mm and a t...

Embodiment 3

[0028] Preparation of glyphosate-soluble effervescent tablets with 30% glyphosate content.

[0029] (1) Preparation of 32.6% glyphosate masterbatch: 34.3kg of accurately measured 95% glyphosate technical, 4kg of surfactant - alkylphenol ethoxylate, 33kg of inert filler - sucrose, sodium sulfate Mix 27.6kg in the mixer evenly, crush it to more than 150 mesh, collect the powder in another mixer, add 9kg of binder-12% aqueous solution of sodium carboxymethyl starch and knead it, and extrude Granulate to obtain columnar wet granules, dry until the water content is less than 1%, and then sieve through the vibrating sieve of the granulator, and take 30-60 mesh granules for use.

[0030] (2) Tablet compression: mix 92kg of the masterbatch accurately measured in the above (1), 17kg of sodium bicarbonate, 1kg of flow aid - talcum powder in a mixer, and press it into a circle in a tablet press Shaped tablet, 16mm in diameter, 6mm in thickness, and the weight of a single tablet is about...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a glyphosate soluble effervescent tablet which is mainly prepared by the following components of: glyphosate, a gas generating source, a surfactant, a filling material, a binding agent, a flow aid agent, an inert filler and the like. The invention further discloses a preparation method thereof. The preparation method comprises the following steps of: mixing and crushing the glyphosate, the filling material and the binding agent to be in above 150-mesh state, performing extruding, granulating, size stabilizing and screening, and further tabletting with the gas generating source and the flow aid agent so as to obtain the glyphosate soluble effervescent tablet. The glyphosate soluble effervescent tablet disclosed by the invention has the advantages of specific shape, accurate single-tablet weight, no flying of dust, as well as the properties of being boiling during foaming and fast in disintegration and dissolution, thereby being an environment-friendly new pesticide formulation. Furthermore, the production process is simple, the use is convenient, the glyphosate soluble effervescent tablets can be directly thrown and sprayed in paddy fields so as to automatically disintegrate and diffuse, and can also be put into a sprayer to be spayed and applied on crop targets after disintegration and diffusion.

Description

technical field [0001] The invention relates to a herbicide applied to farmland, in particular to a glyphosate-soluble effervescent tablet and a preparation method thereof. Background technique [0002] The basic principle of pesticide effervescent tablets is that the tablet contains acidic substances (acid source) and gas-generating substances (gas-generating substances, generally alkaline salts containing carbonate, such as ammonium bicarbonate, sodium carbonate, etc.), when After the tablet meets water, the acid source and the gas generating source undergo a neutralization reaction, releasing carbon dioxide, thereby achieving the effect of foaming and boiling, and rapid disintegration. The pesticide effervescent tablet can be directly sprinkled in the paddy field to disintegrate and spread by itself. , It can also be put into the sprayer to disintegrate and disperse and then sprayed on the crop target. [0003] At present, glyphosate preparations in my country are mainly...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/20A01N25/34A01P13/00
Inventor 张惠明
Owner FIVESTAR NANTONG CHEM