Flusilazole water dispersible granule and preparation process thereof

The invention provides a flusilazole water dispersible granule which contains 5% to 40% of flusilazole, 0% to 5% of solvent, 5% to 20% of surface active agent, 10% to 20% of absorbant, inert fillers and the like. A preparation process of the flusilazole water dispersible granule comprises the steps of: dissolving crude drugs of flusilazole by using the solvent and the surface active agent under heating and stirring conditions to form a uniform organic liquid phase; then, absorbing the organic liquid phase into a solid wet material by using the absorbant; mixing solid dry materials such as inert fillers and the like into the solid wet material; and after pinching in a pinching machine, extruding, granulating, drying and sieving to obtain the water dispersible granule. The water dispersible granule has high content of effective components and better water dispersity and suspension, is capable of sufficiently playing the medical effect of the flusilazole, is safe and convenient in storage, ...

Sodium polyoxyethylene fatty alcohol ether (9) octyl sulfosuccinate and its preparing process

Insecticide compsn. and its method of application

The present invention discloses a composite insecticide for preventing and eliminating the pests with piercing-sucking mouth part of the lepidopterous pests with high effect.

Glyphosate amide herbicide

A glyphosate-amide herbicide contains glyphosates herbicidal compounds and amides herbicidal compounds. It can kill the both pre-emergence and post-emergence weeds.

Standing grain, broard-leaved tree weeds herbicide

Method for continuously synthesizing phosphorous acid

The invention relates to a method for continuously synthesizing phosphorous acid, comprising the following steps of: fully filling phosphorous acid water solution in a first stage reactor, and then adding phosphorus trichloride and water for reaction at the same time; controlling the temperature to be 10-90 DEG C, and simultaneously leading the reaction material to overflow into a second stage reactor from the first stage reactor for heat preservation reaction; and controlling the temperature to be 10-90 DEG C, and then leading the finished product phosphorous acid water solution to overflow into a finished product storage tank from the second stage reactor. The method has the characteristics of simple technique, stable product quality, good yield, high safety performance, low production cost and the like.

Method for continuously synthesizing phosphorous acid

The invention relates to a method for continuously synthesizing phosphorous acid, comprising the following steps of: fully filling phosphorous acid water solution in a first stage reactor, and then adding phosphorus trichloride and water for reaction at the same time; controlling the temperature to be 10-90 DEG C, and simultaneously leading the reaction material to overflow into a second stage reactor from the first stage reactor for heat preservation reaction; and controlling the temperature to be 10-90 DEG C, and then leading the finished product phosphorous acid water solution to overflow into a finished product storage tank from the second stage reactor. The method has the characteristics of simple technique, stable product quality, good yield, high safety performance, low production cost and the like.

Nitro-methylenes systemic insecticide composition and its use method

A novel nitromethylene composition as systemic insecticide is disclosed. It can be made into solution, emulsifiable concentrate, wettable powder, suspension, granule, effervescent tablet, etc.

Standing grain, broard-leaved tree weeds herbicide

A herbicide for grass and broadleaf weed contains quinoxaline (quizalofop), trifluorocarboxyoxoether (acifluorfen), emulsifier and solvent and features high effect to stem and leaf and no influence to wheat.

Ethylene glycol bi-sulpho succinic acid bi(2-methyl amyl) artesunate and production method thereof

The invention discloses an ethylene glycol bi-sulpho succinic acid bi(2-methyl amyl) artesunate and a production method thereof. The product is prepared by reacting maleic anhydride with 2-methyl-1-amyl alcohol to form a monoesterfication product, reacting the monoesterfication output with sodium sulfite to form a sulphonated product, and then reacting the sulphonated product with ethylene glycol. The product has good performance and is simple to synthesize.

Sodium lauryl polyoxyethylene (7) octyl sulfosuccinate and its preparing process

Method for synthesizing high-solubility copolymer resin of chloroethylene and acrylonitrile

The invention relates to a method for preparing a high-solubility copolymer of chloroethylene and acrylonitrile, which comprises the step that in a copolymerization and synthesis process of the chloroethylene and the acrylonitrile, lauryl sodium sulfate and 2-acrylamido-2-methylpropane sulfonic acid (AMPS) are used as a reaction emulsification system. The solubility of the prepared copolymer of the chloroethylene and the acrylonitrile in an organic solvent DMF reaches more than 20 percent.

Process for cleaning and recovering methanal in mother liquor of glyphosate

The invention relates to a process for recovering diluted glyphosate mother liquor which contains methanal and is generated in the process of oxidizing and synthesizing glyphosate by N, N-phosphinylidyne methyl iminodiacetic acid (N-phosphonomethyliminodiacetic acid for short). The methanal in the mother liquor is evaporated out by methods of distillation, gas stripping, and the like, and an evaporated product is a low-concentration methanal aqueous solution. The diluted methanal is rectified to obtain a methanal concentrated solution, and the concentrated methanal aqueous solution is recovered and used for a condensation working procedure of glyphosate production. The process not only solves the problems of overproof methanal content in the production of a glyphosate aqueous solution agent and environmental pollution after use and can reduce the production cost of the glyphosate.

Ethylene glycol bis-sulpho succinic acid bis(4-methyl-2-amyl) ester sodium and production method thereof

The invention discloses a production method of ethylene glycol bis-sulpho succinic acid bis(4-methyl-2-amyl) ester sodium, which comprises the following steps of: reacting maleic anhydride with 4-methyl-2-amyl alcohol to generate a single esterification product, reacting the single esterification product with sodium sulfite to generate a sulfonation product, and reacting the sulfonation product with ethylene glycol to generate the ethylene glycol bis-sulpho succinic acid bis(4-methyl-2-amyl) ester sodium. The product has high property and is simply synthesized.

Biological control of weeds using the metabolites of alternaria alternata

This invention teaches a method of controlling weeds using the metabolites tenuazonic acid, iso-tenuazonic acid and their salts isolated from the cultures of Alternaria alternata (Fr.) Keissler. Spraying of any of these compounds at a concentration of 5 to 800 µg/g can cause main broad leaf, grassy and sedge weeds to hurt, wilt, and dry to death. Tenuazonic acid, iso-tenuazonic acid, and their salts exhibit herbicidal activity with broad spectrum, quick killing, and high efficiency. The addition of adjuvants improves the herbicidal activity of these compounds.