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 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 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 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 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 wastewater treatment method. The diquat wastewater treatment method comprises the following steps: (1) feeding diquat wastewater into a reaction kettle to adjust the pH value to 9.5-10.5; (2) adding an extractant into the reaction kettle; (3) starting stirring in the reaction kettle, and performing a reaction for 50-70 min; (4) stopping the stirring after the reaction is finished, and carrying out oil-water separation on the obtained product; and (5) continuously reusing the separated extractant until saturation. The method adopting an extraction process to treat the diquat wastewater is simple and easy, can avoid activated carbon from being used, and controls the concentration of 2,2-bipyridyl in effluent water at a low value, so the pressure of biochemical treatment in three-waste workshops is greatly reduced; and the extracted 2,2-bipyridyl can also be back-extracted, and is used for front-end reproduction to realize recycling, so the efficiency is improved, the production cost is saved greatly, and the method is a practical and efficient treatment method.

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 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.