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146 results about "Dinitroaniline" patented technology
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Dinitroanilines are a class of chemical compounds with the chemical formula C₆H₅N₃O₄. They are derived from both aniline and dinitrobenzenes. There are six isomers: 2,3-dinitroaniline, 2,4-dinitroaniline, 2,5-dinitroaniline, 2,6-dinitroaniline, 3,4-dinitroaniline, and 3,5-dinitroaniline.
Compounded herbicide composition for rice field
The invention relates to a compounded herbicide composition for rice fields, which contains the following two effective components: component (A): pyribenzoxim; component (B): a herbicide which is one of the following compounds: triazines compounds, heterocyclic compounds, phenoxy compounds, amide compounds, diphoenyl ether compounds, sulfonylurea compounds, phenoxyalkanoic acid compounds, botanical compounds, organic phosphorus compounds, urea compounds, dinitroaniline compounds, benzamide compounds and carbamate compounds; and wherein, the weight ratio of the component (A) to the component (B) is 1-50: 1-50.
Owner:FMC CHINA INVESTMENT
Method for measuring pesticide residue of six kinds of dinitroaniline in tobacco and tobacco products
InactiveCN101393183AGood effectEasy to handleComponent separationNicotiana tabacumPretreatment method
The invention belongs to the technical field of physicochemical testing of residual pesticide in tobacco and a tobacco product and in particular to a method for mensurating the residual amounts of six classes of dinitraniline pesticides, The method is to extract residual pesticides in an accelerated solvent extraction instrument (ASE), and use a gas chromatograph (matched with electron capture detector (ECD) to directly mensurate the residual amounts of six classes of the dinitraniline pesticides in the tobacco and the tobacco product, namely, butralin, flumetralin, isopropalin, pendimethalin, benfluralin and trifluralin. The method overcomes the disadvantages of a sample treatment method in the prior art and optimizes a sample pretreatment method and the instrument detecting conditions aiming at a tobacco sample. Compared with the prior art, the method has the advantages of simple pretreatment process, reduction of the interference of pigment and other impurities in the tobacco, high automation degree of the whole operation, accurate operation, high sensitivity and good repeatability.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC
Dispersed dye mixture and application thereof
ActiveCN103113758AIncrease coverageGood compatibilityOrganic dyesDyeing processDisperse dyePhotochemistry
The invention relates to the technical field of dispersed dyes. In order to solve the problem that the dyes having a 2,4-dinitraniline structure are all poor in light fastness, the invention provides a dispersed dye mixture which is prepared by the step of mixing component A and component B, wherein the weight percentage of the component A is 10-92%. The 2,4-dinitraniline is used for synthesizing the dye so that the big problem which is always evaded in the industry is solved in a compounding and synergic way; as a result, a dye composition which is good in deep dyeing effect and excellent in light fastness can be obtained while the cost of the color matching dyes is greatly reduced.
Owner:HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
Methods and products to protect against root intrusion and plant and root growth
InactiveUS7012042B1Save significant expenditure of laborWide range of applicationsBiocideFilament/thread formingRoot growthMedicine
One aspect of the present invention is a sprayable composition for coating pipe for protecting it from one or more of root intrusion or root growth when the coated pipe is placed underground. Such sprayable formulation includes a 2,6-dinitroaniline herbicide; a polymer pellet impregnated with a 2,6-dinitroanililne herbicide-sorbed colloidal clay; and a film-forming polymer. Another aspect is pipe coated with the dried residue of a coating of a 2,6-dinitroaniline herbicide; a polymer pellet impregnated with a 2,6-dinitroaniline herbicide-sorbed colloidal clay; and a film-forming polymer, wherein the coated pipe is protected from one or more of root intrusion or root growth when the coated pipe is placed underground.
Owner:GROWGUARD
Excised mutagenesis tetraploid method of water melon and ploidy early stage certification technique
InactiveCN1631101AInduction frequency is highLow toxicityHorticulture methodsPlant tissue cultureFluorescenceColchicine
The invention provides an excised mutagenesis tetraploid method of water melon and ploidy early stage certification technique, wherein dinitro toluene herbicide (DNH) is employed to substitute the conventional colchicines as inducer, whose function is to suppress the Mitosis in the metaphase of cell division through the mechanism of interfering spindle, so as to double the tissue cell chromosome. The method has the advantages of increased inducement success rate and substantially shortened time required for inducement.
Owner:刘文革 +1
Preparation method of 5-aminobenzimidazole
InactiveCN102002002AThorough responseLess side effectsOrganic chemistryAsymmetric hydrogenationSide reaction
The invention discloses a preparation method of 5-aminobenzimidazole, which comprises the following steps: 1) synthesis of 2,4-dinitroaniline; 2) synthesis of 4-nitro-1,2-phenylenediamine; 3) synthesis of 5-nitro benzimidazolone; and 4) hydrogenation reduction of the 5-nitro benzimidazolone. The preparation method of the 5-nitro benzimidazolone is a catalytic hydrogenation reducing process which has completed reaction and less side reaction, does not have pollution on the environment, and the product generated by the method has high quality and high yield, and is suitable for industrialized production.
Owner:张家港市蓝迪森新材料科技有限公司
Synthetic technology for 2-chloro-4,6-dinitroaniline
ActiveCN105367428AReduce acid contentReduce sodium chloride contentOrganic compound preparationAmino compound preparationSodium chlorateWastewater
A synthetic technology for 2-chloro-4,6-dinitroaniline is disclosed. The technology comprises (1) dispersing 2,4-dinitroaniline in hydrochloric acid and a catalyst and stirring to form a slurry, wherein the mass fraction of hydrochloric acid is 1-8%; (2) introducing chlorine into the slurry obtained in the step (1) for chlorination reaction; (3) adding a sodium chlorate solution into the reaction solution in the step (2) and continuing performing chlorination reaction, wherein the mass fraction of the sodium chlorate solution is 20%-40%; and (4) filtering the reaction solution obtained in the step (3), washing the filter cake until the pH value is 6.0-7.0, returning the mother liquid to the step (1) as hydrochloric acid and the catalyst for cyclic utilization utile the sodium chloride in the mother liquid is saturated, and discharging the mother liquid into a wastewater processing system, wherein the molar ratio of 2,4-dinitroaniline, chlorine and sodium chlorate is 1:(0.2-0.8):(0.06-0.3). The technology is high in yield, the purity of the obtained product is high, cost is low, the cycling times of the mother liquid are more, the wastewater discharging amount is less, and the benifit of energy saving and emission reduction is substantial.
Owner:ZHEJIANG LONGSHENG GROUP +1
Production method of 2,4-dinitraniline
InactiveCN107382739AEffectively control the reaction rateControl reaction rateOrganic compound preparationAmino compound preparationThermal insulationAmmonium hydroxide
The invention discloses a production method of 2,4-dinitraniline. 2,4-dinitrochlorobenzene and ammonium hydroxide are taken as raw materials; the method comprises steps as follows: bottom water is added to a reaction kettle, heated to 50-70 DEG C, mixed with 2,4-dinitrochlorobenzene and then heated, ammonium hydroxide is dropwise added, the mixture is heated to 90-100 DEG C after addition, the pressure is controlled at 0.05-0.1 MPa, the thermal insulation reaction is performed for 1-3 hours, and 2,4-dinitraniline is obtained through centrifugal filtration. 2,4-dinitraniline is produced with a low-temperature and low-pressure method, the reaction conditions are mild, the production safety risk is low, a high-quality product is obtained through centrifugal filtration after the reaction ends, further purification and separation are not required, and the production cost is low.
Owner:浙江大井化工有限公司
Preparation method of 2,4-binitro-6-chloroaniline
ActiveCN104003888ANo generationThere is no security riskOrganic compound preparationAmino compound preparationChemical industryChlorine dioxide
The invention relates to the chemical industry field, in particular relates to a preparation method of 2,4-binitro-6-chloroaniline. The preparation method of the 2,4-binitro-6-chloroaniline is carried out under heat insulation condition by adopting a pipeline reactor, the process from contact of the materials to reaction is finished instantly without producing polychlorinated compounds and chlorine dioxide, the potential safety hazard is avoided, the product quality and yield are greatly improved, the HPLC (high performance liquid chromatography) purity is not less than 98%, and the 2,4-dinitraniline residue is not more than 1%; the final product does not come into contact with oxidized sodium chlorate and chlorine due to adoption of the pipeline continuous reaction, no oxidation product is produced in the system, the product quality is improved, and the infinite recycling of the master liquid can be realized; the mother liquid is filtered through a film to recycle sodium chloride, and the infinite recycling of the mother liquid is realized after the mother liquid adsorbs hydrogen chloride, and the sodium chlorate approaches to a theoretical consumption.
Owner:浙江汇翔新材料科技股份有限公司
Safened and efficacious weed control particle
A weed control particle is provided that includes a delivery granule having a surface and a core. A dicarboximide herbicide is adhered to the surface, mixed into the core of the granule, or both. A dinitroaniline herbicide is adhered to the surface, mixed into the core of the granule, or both. A process of weed control includes distributing such particles or two separate types of particles that each have one of the two types of herbicides to a plot around a desired plant. The weed control particles are distributed at a density such that said dicarboximide herbicide is present at between 20% and 80% of full rate for the dicarboximide herbicide and the dinitroaniline is present at between 20% and 70% of full rate for the dinitroaniline herbicide to provide weed control around the desired plant.
Owner:THE ANDERSONS
2,4-dinitraniline continuous ammonification production technology
ActiveCN104130138ATo achieve the purpose of emissionIncrease productivityOrganic compound preparationAmino compound preparationEconomic benefitsReaction temperature
The invention relates to a 2,4-dinitraniline continuous ammonification production technology, which is characterized in that 2, ,4-dinitraniline and ammoniacal liquor are taken as raw materials, the raw materials are reacted at temperature of 160-170 DEG C and pressure of 0.5-1.0 MPa, and then continuously added in an ammonification reactor; when the raw materials exceeds a discharge hatch, and are successively flowed to two auxiliary reactors, wherein the reaction temperature is controlled at 160-170 DEG C, and the reaction pressure is controlled at 0.5-1.0 MPa, reaction time of an ammonification reactor is 42 minutes, and reaction time of each auxiliary reactor is 15 minutes. The production technology has the advantages of high production efficiency, low energy consumption, environmental protection, economy, low labor intensity and safety, waste heat during an ammonification reaction process can be fully used, by-product ammonium chloride can be simultaneously recovered, no waste water is generated, and the production technology has the advantages of green production and good economic benefit.
Owner:LIANYUNGANG DIPU CHEM
Azo type disperse dye composition synthesis method
ActiveCN103709787AShade stabilityMild crystallization processMonoazo dyesDyeing processDispersion stabilityDisperse dye
The present invention relates to the technical field of disperse dyes, and provides an azo type disperse dye composition synthesis method so as to solve the problem of not ideal light fastness of the single color variety due to 2,4-dinitroaniline. The synthesis method comprises that: a diazo component 2,4-dinitroaniline of various components in the desired mixture concurrently reacts in the same diazotization device, various coupling components of the mixed dye are coupled in the same coupling device through a plurality of coupling manners according to the ratio requirement with the diazo during coupling, the obtained coupling solution can be subjected to a temperature increase crystal transformation treatment before entering a filter if necessary so as to make the crystal form of the obtained dye be stable, and pressure filtration is performed to directly obtain the dye mixture with the required ratio. According to the present invention, the light fastness problem is solved, the crystal transformation process is mild, and the high temperature dispersion stability, the low temperature dispersion stability and the chromatic light of the dye are stable.
Owner:ZHEJIANG JIHUA GROUP +1
Antileishmanial dinitroaniline sulfanomides with activity against parasite tubulin
Dinitroaniline compounds useful for the treatment of diseases caused by parasitic protozoa in subjects in need of such treatment. The compounds are particularly useful in the treatment of leishmaniasis. The compounds are preferably less cytotoxic to normal cells than oryzalin. Also provided are methods of treating subjects having diseases caused by parasitic protozoa, preferably humans. The method comprising administering a therapeutically effective amount of a dinitroaniline compound of the present invention to a subject in need of such treatment
Owner:THE OHIO STATES UNIV +1
Clean technology for continuously synthesizing 2,4-dinitro-6-chloroaniline
ActiveCN105461572AAvoid emissionsReduce dosageOrganic compound preparationAmino compound preparationHydrogen chlorideClean technology
Owner:ZHEJIANG LONGSHENG GROUP +1
GC-MS/MS (gas chromatography-tandem mass spectrometry) method for analyzing dinitroaniline pesticide residue in tobacco and tobacco product
ActiveCN103293266ASimple processing methodReduce maintenanceComponent separationPesticide residueSolid phase extraction
The invention relates to a GC-MS / MS (gas chromatography-tandem mass spectrometry) method for analyzing dinitroaniline pesticide residue in tobacco and a tobacco product, which is characterized by comprising the following steps: drenching a sample with water, and adding acetonitrile and an internal standard substance; performing vortex extraction and salting-out stratification, and performing secondary salting-out and liquid-liquid extraction with a sodium chloride water solution and n-hexane; and taking the n-hexane supernatant, and determining according to a GC-MS / MS method. The method provided by the invention simplifies the existing sample treatment method, provides a cleaner on-machine solution, and reduces the maintenance of instruments in the operating process. The sample pretreatment process of the method provided by the invention omits a purification step of substrate d-SPE (dispersive solid phase extraction); and instead, the acetonitrile extracting solution is taken, and liquid-liquid extraction and secondary salting-out are performed by using the n-hexane and the sodium chloride water solution, so that the polar coextraction substrate in the supernatant is greatly reduced. By using GC-MS / MS having high sensitivity and high interference rejection, the detection limit of a target substance can be greatly reduced, and the advantages of high sensitivity and favorable repetitiveness are achieved.
Owner:CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
Transparent polyimide material and preparation method thereof
ActiveCN104478788AHigh transparencyHigh glass transition temperatureOrganic chemistryCharge-transfer complexHeat resistance
The invention relates to a transparent polyimide material and a preparation method thereof. According to the preparation method, tetrafluorophthalic acid and 3,5-dinitraniline are taken as raw materials and are subjected to two-step reaction of acylation and hydrogenation to generate a diamine monomer, namely 2-(3,5-diaminodiphenyl)-4,5,6,7-(tetrafluoroisoindoline)-1,3-dione, and the diamine monomer is reacted with aromatic diamine and dianhydride to generate polyimide. By introducing fluorine atoms and strong electron withdrawing groups into the structure of diamine, the generation of charge transfer complexes (CTC) in molecules is inhibited, and the transparency of polyimide is remarkably improved; the glass-transition temperature of prepared polyimide is 300-368 DEG C, and the light transmissivity of a thin film with the thickness of 10-12 microns at 450nm is 90%-96%; the prepared transparent polyimide material has the advantages of high transparency and glass-transition temperature and good dissolubility and heat resistance and has wide application prospects in the related fields of flexible transparent substrates, panel display and the like.
Owner:JIANGSU SUNERA TECH CO LTD
Synthesis method of 2,4-binitro-6-bromaniline diazonium salt
The invention relates to a synthesis method of 2,4-binitro-6-bromaniline diazonium salt. The synthesis method is characterized in that 2,4-dinitroaniline is used as a raw material; 2,4-binitro-6-bromaniline sulfuric acid solution or suspending liquid is obtained by bromination reaction in an acidic medium; and then diazotization reagent is directly added for diazotization, so as to obtain the 2,4-binitro-6-bromaniline diazonium salt. The synthesis method has the advantages of simple process, low equipment requirement, less three wastes and low energy consumption, and is easy to be industrialized.
Owner:ZHEJIANG JIHUA GROUP
Methods and products to protect against root intrusion and plant and root growth
InactiveUS20060148651A1Prevent root intrusionGood physical propertiesBiocideDead animal preservationGrowth plantRoot growth
This invention provides repellent devices and methods for control of root intrusion and plant growth. One aspect of this invention is a geotextile in which 2,6-dinitroaniline is stored inside the individual filaments. The 2,6-dinitroaniline is stored in nanoclay or smectite clay reservoirs that control the rate of release of the 2,6-dinitroaniline. These reservoir particles are placed in the fibers during the melt spinning production of the fibers or by film-to-fiber processes. The particles are very thin and are oriented within the fibers during the spinning process. These clay reservoirs are superior to conventional carbon-based reservoirs, because the dispersed clay materials have a uniform, e.g., 1-nanometer, thickness that is needed to fit into individual filaments. Nonwoven, woven, or knitting processes are used to make the geotextile fabrics. The fibers of this invention prevent root intrusion into these fabrics.
Owner:GROWGUARD
Clean technology for continuously synthesizing 2,4-binitro-6-chloroaniline
InactiveCN104592042AAvoid emissionsNo emissionsOrganic compound preparationAmino compound preparationHydrogen chlorideClean technology
The invention discloses a clean technology for continuously synthesizing 2,4-binitro-6-chloroaniline. The clean technology comprises the following steps: continuously feeding 2,4-dinitraniline, hydrochloric acid and chlorine gas to a first-stage reaction kettle of a multi-stage tandem reaction kettle; carrying out chlorination reaction under stirring, feeding one part of materials in the previous stage of reaction kettle to the reaction kettle to circulate through a pump, and feeding one part to the next stage of reaction kettle to further carry out chlorination reaction; feeding the tail gas generated by the previous stage of reaction kettle to the next stage of reaction kettle to further carry out chlorination reaction, and feeding one part of the materials in the final stage of reaction kettle to the reaction kettle to circulate through a pump; after reaction is detected to be completed, continuously discharging and filtering one part of materials, wherein the obtained filter cake is a 2,4-binitro-6-chloroaniline product; feeding the filtered mother liquor to a mother liquor recovery tank; and blowing air into the mother liquor in the mother liquor recovery tank, reusing the blown hydrogen chloride tail gas, and pumping into a mother liquor storage tank when the air blown into the mother liquor reaches certain concentration, wherein the mother liquor in the mother liquor storage tank is used in cycle instead of hydrochloric acid.
Owner:ZHEJIANG LONGSHENG GROUP +1
Method for removing nitrosamine from dinitroaniline herbicides
InactiveCN102701989AReduce contentFulfil requirementsAmino compound purification/separationOrganic compound preparationPendimethalinSolvent
The invention discloses a method for removing nitrosamine from dinitroaniline herbicides. The method comprises the steps of: adding a solvent, haloid acid and a remover methylsulfonic acid in the production synthesis process of raw dinitroaniline herbicide or a raw dinitroaniline herbicide product, and carrying out nitrous removal reaction to convert byproduct nitrosamine into a target product, such as trifluralin, pendimethalin, Amex820, oryzalin, dinitramine, isopropalin, bulab-37 and fluchloralin, so that the nitrosamine content is not more than 1.0ppm and achieves the export standard.
Owner:山东华阳农药化工集团有限公司
Herbicide compositions for upland farming and control method
InactiveUS20090131258A1Improve weed control effectEnabling weed controlBiocideDead animal preservationCarbamateBULK ACTIVE INGREDIENT
The present Invention relates to a herbicide composition comprising, as active ingredients, at least one compound selected from the thienopyrimidine derivatives represented by the formula (I);wherein R1 represents a fluoroalkyl group having 1 or 2 carbon atoms, a fluoroalkoxy group having 1 or 2 carbon atoms or a fluoroalkylthio group having 1 or 2 carbon atoms, R2 represents a linear or branched alkyl group having 1 to 4 carbon atoms or a linear or branched fluoroalkyl group having 1 to 4 carbon atoms, and R3 and R4 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 3 carbon atoms; and one or two or more kinds of herbicides selected from a urea-based herbicide, a dinitroaniline-based herbicide, a phenoxypropionic acid-based herbicide, a cyclohexanedione-based herbicide, an imidazolinone-based herbicide, a sulfonylurea-based herbicide, a carbamate-based herbicide, a triazolinone-based herbicide, a triazolopyrimidine-based herbicide, fluoroxypyr or a derivative thereof, clopyralid or a derivative thereof, flufenacet, flurtamone and pinoxaden, and a method for using the same.
Owner:NIHON NOHYAKU CO LTD
Synergistic bactericidal composition containing fluazinam and carbendazim and application thereof
The invention discloses a synergistic compound bactericidal composition containing fluazinam and carbendazim, wherein the active ingredients of the composition mainly consist of the fluazinam and the carbendazim; and the mass ratio of the fluazinam to the carbendazim is 20:1-1:30. In the composition, the used carbendazim is benzimidazoles drug, the used fluazinam is 2, 6-dinitroaniline drug, and the fluazinam and the carbendazim are mixed to generate synergistic action. The composition disclosed by the invention has the advantages of reducing dosage and cost.
Owner:NANJING HUAZHOU PHARMA
Method for preparing pendimethalin by aminating dimethyl dinitroanisole
InactiveCN101700998AAvoid alkaline hydrolysisRaise the reaction temperatureOrganic compound preparationAmino compound preparationN-nitrosamineWastewater
The invention relates to a method for preparing pendimethalin by aminating dimethyl-dinitro anisole. The method comprises the following concrete steps of: firstly, mixing, heating and refluxing 3,4-dimethyl-2,6-dinitroanisole, catalyst and excessive 3-pentyl amine for carrying out aminating reaction to generate N-(1-ethyl propyl)-3,4-dimethyl-2,6-dinitraniline; and secondly, distilling and reclaiming the unreacted 3-pentyl amine, cooling residues, and dissolving the cooled residuces with absolute ethanol, filtering to remove the catalyst and other insoluble substances, then removing ethanol to obtain 98 percent pendimethalin raw drug with the yield over 92 percent. Compared with the traditional synthetic production process of the pendimethalin raw drug, the preparation method not only has high yield, favorable quality and less wastewater, but also more importantly puts an end to the generation of N-nitrosamine substances in the pendimethalin raw drug.
Owner:乐斯化学有限公司
Chlorination process of 2,4-dinitroaniline
ActiveCN110605069AReduce the difficulty of operationIncrease reaction rateOrganic chemistryOrganic compound preparationSodium chlorateSodium bisulfate
The invention discloses a chlorination process of 2,4-dinitroaniline, which comprises the following specific steps: adding lignosulfonate into 2,4-dinitroaniline, and putting the mixture into water tosuspend in water; adding hydrochloric acid into a stirring barrel, simultaneously adding 2,4-dinitroaniline suspension and sodium chlorate into the stirring barrel for a reaction to expel excessive chlorine, adding sodium bisulfate into reactants to decompose residual chlorine, and filtering the liquid, washing the reaction product to be neutral, and drying the reaction product to obtain the 2,4-dinitroaniline.
Owner:浙江汇翔新材料科技股份有限公司
Clean technology for continuously synthesizing 2,6-dichloro-p-nitroaniline
ActiveCN105461571AAvoid emissionsNo emissionsOrganic compound preparationAmino compound preparationP-NitroanilineHydrogen chloride
A clean technology for continuously synthesizing 2,6-dichloro-p-nitroaniline adopts multistage serially connected reaction kettles and comprises the following steps: continuously adding 2,4-dinitroaniline, hydrochloric acid and chlorine to a first stage reaction kettle, carrying out a chlorination reaction under stirring, allowing parts of a material in a previous reaction kettle to enter a self reaction kettle through a pump and to circulate, allowing parts of the material in the previous reaction kettle to enter a next reaction kettle, continuously carrying out the chlorination reaction, allowing tail gas generated in the previous reaction kettle to enter the next reaction kettle, continuously carrying out the chlorination reaction, allowing parts of a material in a final stage reaction kettle to enter the self reaction kettle through a pump and to circulate, continuously discharging and filtering parts of the final obtained material after a detection result shows the reaction is completed to obtain a filter cake which is a 2,6-dichloro-p-nitroaniline product, allowing a mother liquor obtained after filtration to enter a mother liquor recovery tank, blowing air to the mother liquor in the mother liquor recovery tank, reusing hydrogen chloride tail gas obtained after blowing, pumping the blown mother liquor with certain acidity into a mother liquor storage tank, and recycling the mother liquor in the mother liquor storage tank to substitute hydrochloric acid.
Owner:ZHEJIANG LONGSHENG GROUP +1
Herbicide composition for upland farming and control method
InactiveCN101048065AReduce controlImprove weed control effectBiocideDead animal preservationCarbamateFluroxypyr
Owner:NIHON NOHYAKU CO LTD
Bactericide composition containing chemical bactericides and biocontrol bacterium, preparation and application of bactericide composition or preparation
InactiveCN106035383AGood control effectDelay chemoresistanceBiocideDead animal preservationNicotiana tabacumCarboxylic acid
The invention discloses a bactericide composition containing chemical bactericides and a biocontrol bacterium, a preparation and application of the bactericide composition or the preparation, and belongs to the field of plant protection and pesticide science. The composition comprises the chemical bactericides and biocontrol bacterium powder in a mass ratio of (1-10) to (1-10), wherein the viable count of the bacterium powder is not lower than 10<6>cfu / g; the chemical bactericides are preferably selected from carboxylic acid amide bactericides, phenylamide bactericides, benzamide bactericides, dinitroaniline bactericides and dithiocarbamate bactericides; the biocontrol bacterium is preferably bacillus amyloliquefaciens ZY-9-13, with collection number of CGMCC No.6162. The bactericide composition has excellent control effects on tobacco root knot nematode and tobacco black shank, has obviously better control effects than the singly used chemical bactericides or biocontrol bacterium, can achieve the effect of delaying chemical drug resistance and is especially suitable for controlling tobacco black shank in the field.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC
Method for preparing 2, 4-dinitro-6-bromoaniline through two stages of oxybromination
ActiveCN104447357AAchieve concentrationHigh purityOrganic compound preparationAmino compound preparationBromineChloride
The invention relates to a method for preparing 2, 4-dinitro-6-bromoaniline through two stages of oxybromination. The method comprises the steps that (1) 2, 4-dinitraniline is added to hydrochloric acid with the concentration being 10-35wt%, then the 2, 4-dinitraniline and the hydrochloric acid are evenly stirred, bromine is dripped into the mixture, and a stirring reaction continues to be carried out for 10-60 min; (2) chlorine is supplied to a reaction system in the step (1), after chlorine supply is completed, a heat preservation reaction continues to be carried out for 10-50 min; (3) hydrogen peroxide is dripped into the reaction system in the step (2), and the heat preservation reaction continues to be carried out for 10-60 min again; (4) a prepared product from the step (3) is filtered, washed and dried, and therefore the 2, 4-dinitro-6-bromoaniline is obtained. According to the method, the generated by-product in the oxybromination process of chloride is hydrogen chloride, the generated by-product in the oxybromination process of the hydrogen peroxide is water, hydrochloric acid is formed, no other by-products except mother liquor is generated, and green industrial production is achieved.
Owner:昌邑新澳化工有限公司
Preparation of N-(1- ethyl propyl)-3,4-methyl toluidine
InactiveCN101302168AHigh reuse ratePromote generationOrganic compound preparationOrganic-compounds/hydrides/coordination-complexes catalystsO-XyleneDimethylaniline N-oxide
The invention provides a method for making N-(1-ethyl propyl)-3,4-dimethylaniline, belonging to the dinitroaniline class pesticide technical field. The method has the characteristics that o-xylene is used as a starting material, which is nitrified under a function of a catalyst to obtain 3,4-dimethyl nitrobenzene, and is hydrogenated, added and re-hydrogenated with 3-pentanone under the function of the catalyst, and then the N-(1-ethyl propyl)-3,4-dimethylaniline is obtained. The content of N-(1-ethyl propyl)-3,4-dimethylaniline is more than or equal to 98 percent; the operation procedure is simplified, and the row material is easy to obtain with low cost, thereby easily and industrially realizing.
Owner:QINGDAO HANSEN BIOLOGIC SCI
Synergistic weeding composition containing dicarfentrazone-ethyl and dinitraniline type compounds
ActiveCN105875618ALow costEasy to useBiocideDead animal preservationPendimethalinAlopecurus aequalis
The invention relates to the technical field of pesticides and particularly relates to synergistic weeding composition containing dicarfentrazone-ethyl and dinitraniline type compounds. The synergistic weeding composition comprises an active ingredient A and an active ingredient B which are effective for weed control, wherein the active ingredient A is a compound dicarfentrazone-ethyl, and the active ingredient B is one or more of dinitraniline type compounds, namely, pendimethalin, trifluralin and butralin. The synergistic weeding composition can be used for controlling broad leaved weeds such as descurainia sophia, shepherd's purse, lithospermum arvense and the like and grassy weeds such as alopecurus aequalis, lolium multiflorum, bromegrass and the like and has a remarkable control effect on resistant weeds.
Owner:TAIAN ACAD OF AGRI SCI
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