59 results about "Diquat" patented technology

Disclosed herein is a hair care shampoo composition having reduced squeakiness effect comprising: (A) at least one conditioning terpolymer obtained from polymerizing: (i) about 20 wt. % to 99.9 wt. % of at least one cationic or pseudo-cationic monomer selected from the group consisting of acrylamidopropyl trimethylammonium chloride (APTAC), diallyl dimethyl ammonium chloride (DADMAC); Acryloyloxyethyltrimethylammonium chloride (AETAC); Methacrylamidopropyltrimethylammonium chloride (MAPTAC); Dimethylaminoethyl methacrylate (DMAEMA or MADAME); Methyloyloxy ethyl trimethyl ammonium chloride (METAC); Dimethylaminopropyl-methacrylamideN-(3-chloro-2-hydroxypropyl)-trimethyl-ammonium chloride (DIQUAT chloride); (ii) about 0.1 wt. % to 30 wt. % of at least one anionic monomer selected from the group consisting of (a) acrylic acid (AA), (b) acrylamidomethylpropyl sulfonate (AMPS), and / or (c) sodium methyl allyl sulfonate (SMAS); and (iii) about 0.1 wt. % to 20.0 wt. % of at least one monomer comprising at least one functionalized or unfunctionalized acryloyl moiety and at least one lactam moiety; and (B) about 0.1 wt. % to 50.0 wt. % of at least one cosmetically acceptable excipient.

The invention relates to a broad spectrum type diquat compound synergist and a preparation method thereof. The broad spectrum type diquat compound synergist is prepared by synthesizing a pyrrolidone compound, a surfactant, a wetting agent, a dispersing agent, a penetrating agent, a pH regulator and a defoaming agent. A series of products on a general market can be replaced by the broad spectrum type diquat compound synergist; the universality of the synergist and the convenience of use in charging can be greatly expanded; a prepared diquat aqueous solution product is stable in quality, the weeding effect is obviously improved, the lasting time of the efficacy is long, the application amount of a herbicide can be effectively reduced, the pollution to the environment is reduced, and resources are saved.

The invention relates to the field of crop herbicides, and in particular relates to a compound synergistic herbicide and a preparation technology thereof. The compound synergistic herbicide comprises active components and auxiliary materials in a pesticide preparation, wherein the active components comprise a glyphosate type compound and diquat; the weight ratio of the glyphosate type compound to diquat ranges from 1.5:1 to 25:1. The herbicide is water aqua which comprises the following components in percentage by weight: 25-50 percent of ammonium glyphosate, 1-20 percent of diquat, 3-15 percent of a surfactant, 0-0.1 percent of a vomitive, 0.1-1 percent of alert pigment, 3-10 percent of a synergist and the balance being a solvent. By compounding of the herbicide, the prevention and treatment spectrum can be expanded, the weeding speed is increased, and the prevention effect is enhanced; furthermore, the drug resistance is delayed, and the existing drug resistance is treated.

The invention belongs to the technical field of pesticide preparation synthesis, and specifically relates to a diquat synthesizing and refining technology. According to the diquat synthesizing and refining technology provided by the invention, a diquat aqueous solution is prepared by the steps such as desolvation, synthesis, layering, filtering, regulation of pH value, extraction and distillation.

The present invention discloses a diquat synthesis novel process, which prepares a diquat water agent mainly through the steps of coupling, alkaline hydrolysis, extraction, cyclization, extraction, and decoloration. The whole process of the invention is simple in process, high in reaction yield, low in production cost and environment-friendly.

The invention belongs to the technical field of herbicide, and provides a thickening diquat aqueous solution formula, a preparing method and a using method. The thickening diquat aqueous solution is prepared from 50 parts of diquat mother liquor, 20 parts of thickening surface active agent, 10 parts of organic silicone emulsion, 8 parts of propylene glycol methyl ether acetate and 12 parts of water. The thickening surface active agent is prepared from, by weight, 5 parts of ammonium chloride, 25 parts of coconut oil monoethanolamide, 30 parts of lauric acid amido propyl glycine betaine, 10 parts of polyvinylpyrrolidone and 30 parts of water, the organic silicone emulsion is prepared from, by weight, 22 parts of hydroxyl silicone oil, 18 parts of polyether polyamine block silicone oil, 4 parts of XL-40-, 3 parts of XL-70-, 1 part of defoamer, 2 parts of acetic acid and 50 parts of water. According to the thickening diquat aqueous solution formula replaces original paraquat, the compounded formula can strengthen dwell time of agent liquor in the surface of plants, effective component loss is reduced, and the agent effect is improved.

The invention belongs to the technical field of pesticides and discloses a compounded aqueous agent containing glyphosate, aquacide and bispyribac-sodium. The compounded aqueous agent is prepared with the glyphosate, the aquacide and the bispyribac-sodium as main active components according to the mass ratio of 0.1-80:0.1-60:0.1-40. The total mass percentage content of the glyphosate, the aquacide and the bispyribac-sodium in the aqueous agent is 1-80%. The aqueous agent also includes 0.1-20% of a surfactant, 0-10% of an anti-freezing agent, 0.1-0.5% of a defoaming agent and the balanced water. In the compounded aqueous agent, the action mechanism of the three active components are different so that the three active components, after being compounded, can delay the drug resistance, are enlarged in weeding spectrum and are improved in weeding effect. The compounded aqueous agent is quick in effects, is long in lasting period, is not liable to cause drug resistance, is complete in weeding and is low in residue. The compounded aqueous agent can achieve an excellent preventing and treating effect just by one applying time so that the compounded aqueous agent is reduced in applying times and applying cost.

The invention relates to a method for determining the quantity of diquat or paraquat residual in food. The method comprises the steps of pretreating a sample: firstly extracting the diquat or the paraquat in the food sample by using a methanol aqueous solution; purifying the extract by using C18 and PSA (Primary Secondary Amine) dispersive solid-phase extraction agents; and finally by combining ahigh performance liquid chromatography with a quadrupole time-of-flight mass spectrometry, realizing qualitative and quantitative determination of the diquat or the paraquat residual in the food through the accurate mass number of compound ions. The method disclosed by the invention has the beneficial effects that the matrix interference in the detection of the diquat or the paraquat residual in the food is effectively reduced; the recovery rate of the diquat or the paraquat can be up to 80.8%-97.3%; the relative standard deviation is 3.5%-7.8%; the limit of quantification is 10mug / kg; the method has the advantages of being simple and convenient to operate, fast, accurate, high in sensitivity and good in repeatability; and the method is a supplement and an improvement on a conventional QuEChERS method.

The invention discloses a composition for rice withering acceleration. The composition comprises diquat and a growth regulator; the diquat and the growth regulator are prepared according to a weight ratio of (1:1) to (10:1). According to the composition for rice withering acceleration, the diquat and the growth regulator are blended, therefore not only is the problem that production reduction after withering acceleration is caused by the diquat solved but also the problem of rice dewatering caused by withering acceleration can be solved; airing labor cost is reduced, and economic benefit is effectively increased.

A preparation method of a graphene quantum dot fluorescent probe for paraquat detection comprises the following steps: firstly, soaking oriental cherry leaves in absolute ethyl alcohol, stirring, centrifuging, taking supernatant, performing rotary evaporation to obtain chlorophyll, dispersing the chlorophyll in water, heating in a microwave oven, and finally dispersing the chlorophyll in ethyl alcohol to obtain the graphene quantum dot fluorescent probe with a red emission spectrum band. The maximum emission wavelength of the graphene quantum dot fluorescent probe is 630 nm, the maximum absorption peak position of a visible region of paraquat free radicals is also at the 630 nm position, the energy levels of a fluorescent probe donor and a paraquat free radical acceptor are overlapped, fluorescence resonance energy transfer occurs, and probe fluorescence quenching is caused. The probe is poor in effect when being used for comparing and detecting aquacide, cypermethrin, chlorpyrifos and glyphosate isopropylamino, however, the detection limit is 10<-9> mol.L<-1> when being used for high-selectivity recognition and high-sensitivity detection of paraquat free radicals. The preparation method is simple and easy to implement, high in selectivity, high in sensitivity and low in detection limit.

The invention relates to multifunctional compound fertilizer with a sterilizing function. The multifunctional compound fertilizer comprises boron mud, calcium nitrate, lutein ester, cattle manure, vermicompost, duck manure, bean curd swill, sodium bentonite, beta-sitosterol, glyphosine, licorzinc, mepiquat chloride, activated bentonite, potassium molybdate, nano silicon oxide, phosphoric acid, zinc oxide powder, cobalt chloride powder, polyvinyl fluoride, dipotassium hydrogen phosphate, chloral hydrate, bensulfuron methyl, prallethrin, diquat, Derris fordii Oliv., sodium polyacrylate, 3-hydroxy butyraldehyde, potassium fluozirconate, selenomethionine and hydroxymethyl cellulose. The multifunctional compound fertilizer has the advantages that the fertilizer is simple in preparation process, excellent in soil repairing ability, good in insecticide performance and capable of providing nutrients for crops and trees, the survival rate of the planted crops and trees is increased greatly, and use effect of the fertilizer is improved.

The invention provides an adhesive diquat dibromide synergist and a preparation method thereof, belongs to the technical field of pesticides, and aims at providing an adhesive diquat dibromide synergist with low foam, good mobility, safety and no pollution and the preparation method thereof. The adhesive diquat dibromide synergist is prepared from the following components in parts by weight: 10-40parts of polypropylene compound, 10-40 parts of surfactant, 0.1-20 parts of a wetting agent, 0.1-20 parts of dispersant, 0.1-20 parts of a penetrating agent, 0.1-10 parts of a pH value regulator and0.1-10 parts of a defoaming agent. The preparation method comprises the following steps: uniformly mixing the polypropylene compound and the surfactant; uniformly mixing the dispersant, the wetting agent and the penetrating agent with the mixture; adding the pH value regulator, and adding the defoaming agent. The adhesive diquat dibromide synergist has good mobility, is easy for production charging, and has low foam. The diquat dibromide pesticide prepared by adopting the synergist is safe to use, and does not have environmental pollution.

The invention discloses a low-foam thickening synergistic aid for diquat dichloride. The low-foam thickening synergistic aid comprises the following components in percentage by weight: 1-20% of hexadecyl trimethyl ammonium chloride, 1-20% of diquat dichloride, 1-20% of diquat chloride, 1-20% of diquat chloride, 1-20% of diquat chloride and the balance of water. 1-30% of alkyl glycoside; 1 to 30% of cocamidopropyl betaine; 1 to 30% of cocamidopropyl dimethyl tertiary amine; 1-20% of ethanol; 0.05 to 0.2 percent of a defoaming agent; and the balance of water. The low-foam thickening synergistic aid for the aquacide dichloride aqueous solution can increase the viscosity of the aquacide dichloride aqueous solution, improve the effect and effectively reduce the foam of the aqueous solution.

The invention discloses a compound synergetic defoliation ripening agent and application thereof. An effective ingredient of the defoliation ripening agent is prepared by compounding thidiazuron, diquat and methionine. The compound synergetic defoliation ripening agent has the advantages that besides good defoliation and maturity, the content of leafy chip in cotton is reduced and the quality andthe efficiency of mechanized cotton mining operation are improved; in addition, the yield of the cotton is improved and the pesticide use cost is reduced; the compound synergetic defoliation ripeningagent has no adverse effects on the quality of cotton fibers.

The invention belongs to the technical field of pesticides and relates to a soluble concentrate containing diquat dichloride and a preparation method of the soluble concentrate. The soluble concentrate is prepared from the following components in percentage by mass: 0.5 to 45 percent of the diquat dichloride, 5 to 20 percent of surfactant and safe auxiliary components such as an emetic (triazole pyrimidone), warning coloration (brilliant blue) and a bitter agent (pyridine) and the balance of water. The soluble concentrate containing diquat dichloride, disclosed by the invention, has the advantages of high concentration of diquat dichloride, better viscosity, capabilities of obviously improving the adhesion and wetting permeability of liquid medicine and improving herbicidal activity and high safety to users and environment.

The invention provides a diquat Raman enhanced spectroscopy for fruits and vegetables and a reagent formula thereof. The method is characterized in that the Raman spectrum signal of diquat is enhanced by adopting a silver colloid aqueous solution A as a surface enhancing reagent and an aqueous solution B containing a certain concentration of Cl- as an auxiliary reagent, and a diquat test is carried out with the characteristic Raman spectrum signal near the wave number 1593cm<-1>. Fruits and vegetables are uniformly mixed, centrifuged and directly tested by using deionized water as an extraction reagent. The method can be used for qualitatively detecting and initially screening the diquat in a food sample and quantitatively detecting the diquat in the food sample by adopting an external standard method according to the linear relationship between the Raman spectrum signal strength of diquat and content thereof, is simple, convenient and quick to operate, is low in cost for reagents and consumable materials, and is easy to popularize and generalize.

Disclosed are a supermolecular kit and a method for quick detection of diquat. The supermolecular kit comprises a reagent 1 and a reagent 2, wherein the reagent 1 is a solution prepared from safranine T and carboxymethyl-beta-cyclodextrin, and the reagent 2 is a solution prepared from methylene blue and carboxymethyl-beta-cyclodextrin. The supermolecular kit is capable of detecting the diquat qualitatively through color matching by naked eyes and solves the problems about time and cost.

The invention relates to a pesticide for grape plantation. The pesticide is composed of the following ingredients (by weight): 24-28 parts of ammonium sulfate, 22-26 parts of polygonum hydropiper, 22-26 parts of potassium molybdate, 20-24 parts of sodium selenate, 22-26 parts of amino acid chelated copper, 22-26 parts of boric acid powder, 20-24 parts of diethofencarb, 22-26 parts of diquat, 22-26 parts of chlorpyrifos, and 20-24 parts of thiamethoxam. The product of the invention has a simple preparation technological method, has good insecticidal performance, and is beneficial to supply nutrient elements essential to grapes. Survival rate of planted grapes is greatly raised, and using effect is improved.

The invention discloses a diquat dichloride synthesis method and device. The method comprises the following steps: loading a catalyst into a fixed bed reactor, activating for 4 to 6 hours under the conditions that the temperature is 300 to 550 DEG C and the nitrogen flow rate is 50 to 150 ml / min, and then cooling to the reaction temperature; adding dichloroethane and 2, 2-dipyridyl into a mixer for mixing; pumping a mixed solution in the mixer into a vaporizing chamber at a certain speed through a centrifugal pump to be vaporized, then entering a condensing pipe to be condensed through the fixed bed reactor, enabling water to continuously enter the condensing pipe to extract diquat dichloride, then enabling an extracting solution and raffinate to enter a standing kettle together to be separated, enabling an upper-layer aqueous solution to enter a concentrating kettle to be concentrated, enabling the lower-layer dichloroethane phase to enter a film evaporator to recover dichloroethane and dipyridyl, and preparing the concentrated mixed liquor into diquat mother liquor or diquat mother drug according to requirements. By adopting the continuous production method, the production efficiency is greatly improved, the process is simple, the solvent is convenient to recycle, and the requirement of the reaction on equipment is not high.

A diquat suspension and a preparation method thereof, characterized in that it contains 1-95% of diquat, 1-5% of a thickener, 1-2% of an antifreeze, 1-10% of an emulsifier, and antiseptic Agent 1-2%, water 1-80%. First, pour water, emulsifier, and diquat into a stirring tank according to a certain percentage by weight, stir well, then transfer to a sand mill, cut, sand, and finally add thickener, antifreeze, anti-corrosion After fully stirring, a uniform diquat suspension can be obtained. The diquat suspension of the present invention can be used for pre-emergence treatment, and can also be used for spraying stems and leaves. Suitable for crops such as corn, soybeans, beans, cucumbers, onions, peppers, strawberries, lettuce, eggplant, turnips, and also for lawn and ornamental plants. It is mainly used to control annual grass weeds and some broad-leaved weeds, such as foxtail, crabgrass, brocade, purslane, chickweed, dodder and so on.

The invention discloses a method and device for synthesizing aquacide dichloride. The method comprises the following steps: 1, pumping a mixed solution of dichloroethane, a catalyst, nitrobenzene and 2,2-dipyridyl into a slurry bed reactor through a first centrifugal pump; 2, conducting reacting at a certain temperature and a certain pressure, pumping the reacted materials into a filter through a second centrifugal pump, and regenerating the catalyst in a regenerator; and 3, enabling reaction liquid to enter a centrifugal extractor for extraction separation, wherein a water phase is aquacide, enabling an organic phase to enter an organic phase storage tank, then pumping the organic phase into a mixing kettle through a third centrifugal pump, mixing the organic phase with the catalyst, and allowing the formed mixture to enter the slurry bed reactor through a fourth centrifugal pump for a continuous reaction. According to the invention, pyridine and dichloroethane are used as raw materials, and a continuous production method is adopted, so production efficiency is greatly improved, a process is simple, a solvent is convenient to recycle, the requirements of the reaction on equipment is not high, a process for directly synthesizing the aquacide dichloride from pyridine and dichloroethane is realized, and pollution harmful to the environment is not generated.

The invention discloses a use of origanum vulgare oil in preparation of diquat toxicity-resistant drugs. A drug effect experiment shows that through oral administration, origanum vulgare can substantially improve intestinal tract antioxidant enzyme activity, reduce MDA content, reduce the amount of escherichia coli in chime, improve the amount of lactobacilli, inhibit high expression of an intestinal mucosa inflammatory factor, improve expression of tightly connected Occludin, reduce excess damage caused by diquat to intestinal mucosal cells and effectively protect an intestinal tract mechanical barrier. The invention provides an oral emulsion for resisting diquat-caused toxic reaction. The oral emulsion comprises 0.01-10% of origanum vulgare oil, 5-20% of an emulsifier, 0.1-10% of a physical stabilizer, 0.1-10% of a co-emulsifier, 0.01-1% of a thickening agent and the balance water. The oral emulsion has the characteristics of good drug absorption, fast action and high bioavailability, can mask the odor and poor taste of origanum vulgare oil and can improve drug compliance.

The invention relates to an easily desorbed and regenerated open-chain cucurbituril-based material for treating pesticide wastewater and a preparation method thereof. The preparation method comprises the following steps: firstly, carrying out electrostatic spinning by taking polyvinyl alcohol and dialdehyde as main raw materials, and then cross-linking in a strong acid methanol solution to form a film; and grafting and modifying the open-chain cucurbituril to the surface of the nanofiber membrane, wherein the open-chain cucurbituril is of a structure with a carbamido repeating unit of 6. The open-chain cucurbituril-based material prepared by the method is good in mechanical property, the tensile strength is 40-70MPa, and the elastic modulus is 1500-2500MPa; the material has high adsorbability on common organic pesticides such as viologen (paraquat), diquat, triclosan, dieldrin and the like, and the maximum adsorption rate reaches 90% or above; the material is easy to desorb and regenerate, desorption can be completed after the material is washed with p-methylbenzyl alcohol and water, and the adsorption rate is still more than 80% after five times of adsorption-desorption cycles. The preparation method is efficient and practical; the material prepared by the method has good mechanical properties and high adsorbability and is easy to desorb and regenerate.

The invention discloses an herbicide composition containing hircic acid and diquat as well as application thereof. The main active ingredients of the herbicide composition comprise the hircic acid andthe diquat. The dosage form of the herbicide composition can be any dosage form allowed by pesticides. The herbicide composition shows a very good synergistic effect within a certain proportion range, and has a certain improved weeding effect than a single agent; and at the same time, the herbicide residue is reduced, and a potential threat of the herbicide to ecological environment is also reduced.

The invention discloses a method for removing trace diquat in water. The method comprises the following steps: (1) uniformly mixing Fe(NO3)<3>.9H2O, Mn(NO3)<2>.4H2O and ZrCl4 according to a certain weight ratio and then dissolving the mixture into hydrochloric acid; adding DMF, then adding 2-aminoterephthalic acid; dissolving, transferring the obtained solution into a closed reaction container, reacting at 80-120 DEG C for 10-30 hours, carrying out centrifugal separation to obtain a crude product, washing the crude product with DMF and ethanol in sequence, soaking product powder into absoluteethyl alcohol for 72 hours, and finally, carrying out vacuum drying at room temperature to obtain a Fe / Zr / Mn-MOFs material; 2) mixing the prepared Fe / Zr / Mn-MOFs material with quartz sand according toa weight ratio of (1-5):1, and uniformly filling a chromatographic filter column with the obtained mixture so as to obtain a chromatographic filter column filled with the Fe / Zr / Mn-MOFs-quartz sand adsorption material; and 3) pumping micro-polluted water containing diquat from the bottom end of the chromatographic filter column obtained in the step 2), and enabling the micro-polluted water to passthrough the chromatographic filter column at a flow rate of 1-30 mL / min and flow out from the top end of the column. The method is simple in process, convenient and quick to operate, remarkable in treatment effect and suitable for removing diquat in micro-polluted water.

The invention belongs to the technical field of herbicides, and particularly relates to diquat molecularly imprinted polymer microspheres and a preparation method and application thereof. The preparation method is as follows: a mixture of α-methacrylic acid and methyl methacrylate, diquat according to 5 ‑10:1 molar ratio dissolved in solvent, ultrasonication, adding crosslinking agent, filled with nitrogen to deoxygenate, sealed, prepolymerized at 0‑4°C, transferred the prepolymer to the polymerization reactor, added column layer Analyze the silica gel and initiator, shake fully, fill with nitrogen to deoxygenate, and seal; react in a constant temperature water bath oscillator, cool, place in a refrigerator, add hydrofluoric acid, stir, filter, wash, and dry to obtain a solid precipitate; the solid precipitate The substance was extracted with the eluting solvent Soxhlet until the residue of diquat could not be detected in the washing solution, then the washing was stopped and dried to constant weight. The diquat molecularly imprinted polymer microspheres are used as SPE column packing, which can effectively detect the residues of diquat pesticide in plant-derived food and ensure the quality and safety of edible agricultural products.

The invention discloses a method for synthesizing aquacide, which is mainly characterized in that an aquacide aqueous solution is prepared by the steps of coupling, carrying out alkaline hydrolysis, extracting, carrying out alkaline hydrolysis, cyclizing, extracting, decolouring and the like. The method for synthesizing the aquacide disclosed by the invention has the advantages of being simple in whole technological process, high in reaction yield, low in production cost and environment-friendly.

The invention discloses a magnetic carboxylated covalent organic framework nanocomposite material and its preparation method and application. The composite material is Fe with carboxylated covalent organic framework externally modified 3 o 4 @SiO 2 ‑NH 2 Nanoparticles. The outer layer of the composite material of the present invention has a variety of functional groups, such as benzene rings with conjugated structures, abundant ‑NH‑, carbonyl, carboxyl and other groups, which can not only provide hydrophobic interaction, hydrogen bond interaction, π‑π It can also provide a weak cation exchange effect, so that the material has multiple modes of action, and can treat substances with different properties such as non-polar polycyclic aromatic hydrocarbons, polar substances tetracyclines, and strong alkalis with quaternary ammonium salt structures. Substances such as paraquat, diquat, malachite green and crystal violet were extracted simultaneously. The composite material synthesized by the invention has the advantages of large specific surface area, large pores, strong magnetism, good stability, reusability, etc., and can meet the requirements of rapid separation and analysis.