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A kind of emodin methyl ether suspension concentrate and its preparation method and application

A technology of emodin methyl ether and suspending agent, which is applied in the field of agricultural production, can solve the problems of difficulty in production of liquid preparations, insoluble in water, etc., and achieves the effects of remarkable medicinal effect, easy decomposition and high extraction cost

Inactive Publication Date: 2017-08-11
BEIJING KINGBO BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Any pesticide must be made into preparations, and emodin methyl ether can only be dissolved in organic solvents such as benzene, chloroform and toluene, and hardly soluble in water, methanol and ethanol, which brings certain difficulties to the production of liquid preparations

Method used

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  • A kind of emodin methyl ether suspension concentrate and its preparation method and application
  • A kind of emodin methyl ether suspension concentrate and its preparation method and application
  • A kind of emodin methyl ether suspension concentrate and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1: the preparation of 0.5% emodin methyl ether suspension concentrate

[0034] (following materials all will reach dehydration constant weight) the percentage of each component content is as follows:

[0035] The original medicine of emodin methyl ether is 5.9%, and the original powder is a mixture of emodin methyl ether, chrysophanol, rhein and other extracts, wherein the mass content of emodin methyl ether is 8.5%. Sodium lignosulfonate 5%, glycerin 5%, xanthan gum 0.2%, potassium sorbate 0.5%, silicone defoamer 0.4%, water 83%. 1000 grams in total.

[0036] Make:

[0037] 1. Weigh 730g of water, then add 50g of sodium lignosulfonate, fully dissolve, add 59g of emodin methyl ether technical, then add 50g of glycerin, 5g of potassium sorbate, 4g of defoamer, and mix well.

[0038] 2. Slowly add 2g of xanthan gum powder into 100g of water while stirring to make 2% xanthan gum mother liquor, and then add it to the mixture obtained in the previous step. The ...

Embodiment 2

[0039] Embodiment 2: the preparation of 1% emodin methyl ether suspension concentrate

[0040] The original powder of emodin methyl ether is 11.8%. The original powder is a mixture of emodin methyl ether, chrysophanol, rhein and other extracts, wherein the mass content of emodin methyl ether is 8.5%. Sodium lignosulfonate 6%, glycerin 5%, xanthan gum 0.2%, potassium sorbate 0.5%, defoamer 0.4%, water 76.1%. 1000 grams in total.

[0041] Make:

[0042]1. Weigh 661g of water, then add 60g of sodium lignosulfonate, fully dissolve, add 118g of emodin methyl ether technical, then add 50g of glycerin, 5g of potassium sorbate, 4g of defoamer, and mix well.

[0043] Slowly add 2.2g xanthan gum powder into 100g water while stirring to make 2% xanthan gum mother liquor, then add it to the above mixture, a total of 1000g, the volume ratio of glass beads to the mixture is 0.6:1, and then use vertical sand The mill starts to grind, and the grinding speed is 2000 rpm. After 6 hours, it i...

Embodiment 3

[0044] Embodiment 3: the preparation of 0.8% emodin methyl ether suspension concentrate

[0045] The original powder of emodin methyl ether is 9.4%. The original powder is a mixture of emodin methyl ether, chrysophanol, rhein and other extracts, wherein the mass content of emodin methyl ether is 8.5%. Sodium lignosulfonate 6%, glycerin 5%, xanthan gum 0.2%, potassium sorbate 0.5%, defoamer 0.4%, water 78.5%. 1000 grams in total.

[0046] Preparation method is the same as embodiment 2.

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Abstract

The invention belongs to the field of agriculture production, and provides a physcion suspension. The physcion suspension comprises, by mass, 0.5-4% of physcion, 0.2-3% of a thickener, 0.5-1.0% of an antiseptic, 5.4-21.6% of an auxiliary material, 5-10% of a dispersant, 5% of an antifreeze agent, 0.4-1.0% of an antifoaming agent and 83-54.5% of water. The invention also provides a preparation method and an application of the physcion suspension. The physcion suspension adopts water as a dispersion medium, so no inflammability or phytotoxicity problems due to organic solvents exist; and assistants select materials with environmental compatibility, for example, sodium ligninsulfonate and xanthan gum are easy-degradation and low-toxicity products. The production and use process of the suspension has no dust harms, and is safe to operators and users.

Description

technical field [0001] The invention belongs to the field of agricultural production, and in particular relates to a biocide containing organic oxygen and its preparation and application. Background technique [0002] Emodin methyl ether is the active ingredient extracted from Polygonaceae Polygonum cuspidatum and rhubarb. Because it comes from natural substances, it is a real pollution-free plant-derived biopesticide, which is necessary for green agriculture and organic agriculture. It has low residue, high efficiency and Low toxicity product. Emodin methyl ether technical extraction and some preparations have obtained the organic certification of international standards. Studies have shown that this substance has good activity against plant pathogenic fungi such as cucumber powdery mildew, rice blast, cucumber gray mold, and wheat powdery mildew. It is reported that emodin methyl ether can effectively prevent cucumber powdery mildew, rice blast fungus, rice sheath blight,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/04A01N35/06A01P3/00
Inventor 石伶俐徐向荣陈爱端王俊杰倪汉文魏凤彪
Owner BEIJING KINGBO BIOTECH
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