11 results about "Bispyrithione" patented technology

The invention belongs to the technical field of fertilizer synergism, and particularly relates to a copper-based coordination polymer, a preparation method and application in nitrogen fertilizer synergism, and the method comprises the following steps: synthesizing N1, N4-bis (3-pyridyl)-2-butene amide by using 3-aminopyridine and fumaric acid as raw materials; and synthesizing the N1, N4-bis (3-pyridyl)-2-buteneamide, CuCl2. 2H2O and 5-nitroisophthalic acid into a new copper-based coordination polymer [Cu (3-bbpa) (5-NIPA)]. H2O by using a hydrothermal method, so as to obtain a blue fine crystal. The copper-based coordination polymer prepared by the invention can synchronously target a urease active center and a nitrifying microorganism functional unit, and a three-dimensional network structure of the copper-based coordination polymer not only enhances the stability of a material in soil, but also realizes double blocking of nitrogen conversion key enzyme through a multi-site synergistic effect.

The purpose of the present invention is to provide a metal complex with which a target gas, especially carbon dioxide, can be separated and recovered from a mixed gas with higher energy efficiency than conventional materials. The metal complex is composed of: a dianion of an aromatic 1,3-dicarboxylic acid compound; a metal dication selected from magnesium, calcium, chromium, molybdenum, tungsten, manganese, iron, ruthenium, cobalt, rhodium, nickel, palladium, copper, zinc and cadmium; and an organic bidentate ligand having a bispyridylethylene structure, and has a structure including two-dimensional sheets stacked in mutual engagement.

A disinfectant cleaning composition, substantially free of quaternary ammonium antimicrobial actives, the composition comprises: a bispyridinium alkane antimicrobial active and a specific polymer.

The invention belongs to the technical field of metal organic coordination compounds, and particularly relates to an MOFs material containing a 2, 3-di [4 '-(3' '-pyridyl) benzylidene)] acetone ligand as well as a preparation method and application of the MOFs material. 2, 3-bis [4 '-(3' '-pyridyl) benzylidene)] acetone L3, Zn (II) and Co (II) metal salts are respectively mixed with terephthalic acid (H2BDC), H2ADB and 4, 4'-diphenyldicarboxylic acid (H2BPDC), four novel structures, namely [Zn (L3) (BDC)] n (7), {[Co (L3) 0.5 (BDC) 0.5 (H2O)]. H2O} n (8), [Zn (L3) (BPC)] n (9) and [Zn (L3) (ADB) 0.5] n (10), are successfully synthesized through solvothermal reaction, and are subjected to crystal structure analysis and basic property characterization. On the basis, the research on the catalytic performance of the MOFs 7-10 on CO2 cycloaddition is further explored, and it is found that under the mild condition, the MOFs 10 has the best CO2 catalytic reaction effect on epoxypropane, the conversion rate of the MOFs 10 reaches up to 99%, cyclic catalysis can be conducted, and potential application prospects are achieved.

The invention discloses application of a bipyridyl extraction agent as a nickel-cobalt extraction agent, belongs to the technical field of hydrometallurgy, and is applied to separation of nickel and cobalt from other metal ions in a complex metal ion solution system, the bipyridyl extraction agent is cooperatively used with DNNSA or P204, and the bipyridyl extraction agent has the following structure, and R is an alkyl group of C12-C25. The bipyridyl extraction agent can form a synergistic extraction system with DNNSA or P204 to selectively extract and separate nickel and cobalt in a complex metal ion solution system, and has a good industrial application prospect.

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of 4, 4 '-(1, 3-propanediyl) bipyridine, which comprises the following steps: under the protection of inert gas, S1, adding 4-acetylpyridine, 4-methyl formate pyridine and a solvent into a reaction container, slowly adding NaH in batches, and reacting to obtain an intermediate 1, 3-bis-4-pyridyl-1, 3-propyl diketone; and S2, reacting the intermediate, a reducing agent and an amide compound under the action of Lewis acid to obtain the 4, 4 '-(1, 3-propanediyl) bipyridine after the reaction. The method has the advantages of simple process, easily available raw materials, short time consumption, avoidance of use of highly toxic and dangerous substances, small harm to human and environment, mild and controllable reaction, high safety coefficient and suitability for industrial large-scale production, the yield and purity of the prepared target product are relatively high, the purity is greater than 99%, and the yield gt; 80%.

This invention discloses a bispyridyl extractant, its preparation method, and its application as a nickel-cobalt extractant. The bispyridyl extractant has the following structure: wherein R is C 12 ~C 25 The alkyl group is prepared by reacting chloromethylpyridine hydrochloride with a primary amine compound via a bimolecular nucleophilic substitution reaction. This bispyridine extractant has stable physicochemical properties, large saturation capacity, good oil solubility of the extract, and good coordination complexing ability for nickel (cobalt) ions. It can be used in combination with DNNSA or P204 to form a synergistic extraction system for selective extraction and separation of nickel and cobalt in complex metal ion solution systems. It can also be used as a single extraction system for efficient extraction and separation of nickel and cobalt in hydrochloric acid systems, showing good prospects for industrial application.

The invention discloses a dihydroxypyridone compound as well as a preparation method and dyeing application thereof, and belongs to the technical field of organic synthesis. The compound is prepared by taking natural blue pigment blue (Indigoidine) as a raw material through oxidation reaction, and the chemical structure of the compound contains dihydroxyl and a bipyridone skeleton. The preparation method comprises the following step: in the presence of alkali solutions of sodium hydroxide, potassium hydroxide and the like, enabling blue to react with an oxidizing agent to obtain the dihydroxypyridone compound. The compound not only shows excellent dyeing performance, but also shows outstanding color fastness, the color fastness to sun, water, dry heat sublimation and wet rubbing reaches 5 levels, and the color fastness to acid stain is 4-5 levels. In addition, the preparation process is mild in reaction condition, good in repeatability and suitable for industrial production, and a new path is provided for high-value utilization and expansion of the dihydroxypyridone compound.

DEPCT68 A novel herbicide component. This invention concerns a novel type of herbicide compound, specifically... This invention involves a synergistic herbicide formulation containing propanil, 2,4-dichloride. Rophenoxyacetic acid or its salt, bispyribac sodium, in effective synergistic amounts;

A synthesis method of the crystal complexes I-IV comprises the following steps: respectively weighing 1 mmol of Co (NO3) 2.6 H2O, Ni (CH3COO) 2.4 H2O, ZnCl2 and CuCl2. 2H2O, dissolving the Co (NO3) 2.6 H2O, Ni (CH3COO) 2.4 H2O, ZnCl2 and CuCl2. 2H2O and 2 mmol of ligand 4-benzopyranone-2-carboxylic acid in 30 mL of absolute ethyl alcohol, mixing and carrying out ultrasonic treatment for half an hour, respectively adding 1 mL of pyridine, carrying out reflux heating and stirring for 24 hours, carrying out hot filtration, naturally volatilizing at room temperature, and drying to obtain the crystal complexes I-IV. Separating out blue crystals I after three days; separating out a green crystal II; precipitating a colorless crystal III and a blue crystal IV; the crystal complex I is used for preparing an anti-lung cancer reagent.

The invention discloses a synthesis method of 4, 4 '-(1, 3-propane diyl) bipyridine, which comprises the following steps: (1) taking 4-methylpyridine as an initial raw material, and reacting with n-butyllithium at low temperature to generate a metal lithium intermediate; and (2) carrying out nucleophilic substitution reaction on the metal lithium intermediate obtained in the step (1) and dichloromethane to obtain the 4, 4 '-(1, 3-propanediyl) bipyridine. The raw materials adopted by the method are cheap and easy to obtain, the production cost is greatly reduced, the reaction conditions are mild, the safety is higher, the method is more environment-friendly, the total reaction yield can reach 75% or above, the product purity can reach 99% or above, and the method is suitable for industrial mass production.