3274 results about "Acetylacetone" patented technology

A method of oxidizing hydroxymethylfurfural (HMF) includes providing a starting material which includes HMF in a solvent comprising water into a reactor. At least one of air and O₂ is provided into the reactor. The starting material is contacted with the catalyst comprising Pt on a support material where the contacting is conducted at a reactor temperature of from about 50° C. to about 200° C. A method of producing an oxidation catalyst where ZrO₂ is provided and is calcined. The ZrO₂ is mixed with platinum (II) acetylacetonate to form a mixture. The mixture is subjected to rotary evaporation to form a product. The product is calcined and reduced under hydrogen to form an activated product. The activated product is passivated under a flow of 2% O₂.

The invention is a styrene or alpha olefine polymerization catalyzer, the synthesizing method and the use. The catalyzer is a pyridyl di-imine back-transition metal suitable matter, synthesized by pyridyl di-imine and back-transition metal compound and can catalyze the polymerization of styrene or alpha-olefine. The product is mainly ruleless polystyrene.

The invention relates to an organic silicon pesticide booster with low surface tension, less side effect and high yield. The chemical formula of invention is as following one, wherein, Me=CH3, R1=CH3, R2=H, CH3, C4H9, -O(O)CCH3, x=0-10, y=1-20, a=5-25, b=0-15. And the preparation comprises that putting the hydrogen siloxane and polyalkenylethers into reaction kettle, protected by N2, to increase temperature and be mixed quickly; then adding some platinum-1.3-divinyl tetramethyl disilyloxy-acetylacetone as catalyst, naturally increasing temperature to 110Deg. C, making solution transparent, adding baking soda, compressing and filtering, to obtain needed organic silicon pesticide booster. The invention has wide application in variable pesticides.

A process for preparing high-performance continuous fibre of zirconium oxide includes such steps as synthesizing acetylacetone-zirconium polymer as precursor from acetylacetone and zirconium oxychloride as main materials, dissolving in methanol to obtain the spinning solution, drying spinning to obtain continuous fibre of precursor, heat treating in a multifunctional sintering furnace by special atmosphere and high-temp. airflow spraying for stretching. Its advantages are high tensile strength (over 2.6 GPa) and long length up to several kilometers.

Bidentate ligand, iridium complex and electro-generated phosphorescent device of iridium complex are disclosed. The bidentate contains cavity transmission group carbazole, the chemical formula of the iridium complex is Ir(C^N)2 (acac), acac= acetyl acetone. The electro-luminescent device consists of conductive glass lining bottom, cavity injecting layer, luminescent layer and cathodic layer. The doping material of luminescent layer is iridium complex of bidentate ligand. Its advantages include to balance transmission ability of current carrier, and to improve brightness and efficiency of device for organic electro-luminescent domain.

The manufacture method of a kind of zirconia fibre cotton relates to the field of resistance of fire fibre material. We compose van-style acetamide acetone zirconium polymer according to chloridze zirconia, acetamide acetone and three-ethylamine. We use methanol as the dilute impregnant, we mix round them to let hloridize zirconia, acetamide acetone and three-ethylamine react at 40-20 deg.C, and we can receive poly-acetamide acetone zirconium van-substance. Four-hydrogen furan filtrate and remove the outgrowth hydrochloric three-ethylamine. The offspring dissolve in the filature liquid made of methanol. After centrifugal swing, we can receive van-substance fibre. After we do special hear treatment, the zirconia fibre cotton we receive has the characteristic of good filature ability, high content of zirconium, equality andclarity and jarles capability. It can be used as industrial stove, roomage fusion stove, atomic energy reactor and the high temperature heat insulation material used in aviation and military. The material of the invention cost low, the method is easy, the impregnant can be recycled, the preparation of fibre cost low.

The invention relates to a preparation method for a controllable duplex metal alloy nano particle. The metal alloy nano particles is a Pt/Pd-M alloy nano particle, wherein the M is selected from Ni, Fe, Co, Mn, Pd, Zn, Cu and Mo; during preparation, n-butyllithium is used as a strong reducing agent and oleylamine and tri-n-octylphosphine are used as protective agents to reduce acetylacetone, chlorate or acetate of the Pt/Pd-M (M= Ni, Fe, Co, Mn, Pd, Zn, Cu,Mo) at the same time so as to form the uniform and size-controllable Pt/Pd-M alloy nano particle without a concentration gradient. The preparation method is simple and controllable in preparation technology, and can solve the problem that when precursor reduction potentials of two metals are greatly different, one metal can be reduced in prior, so that the alloy nano particle can not be obtained easily, provides a better and universal synthetic method for the preparation of the duplex metal alloy nano particle, and provides a key precursor for the preparation of a new generation of metal-oxide nano hybridization body catalyst used for selective hydrogenation reaction.

The invention relates to a method of preparing full-stable and cubic-phase zirconia crystal fibers, which mainly comprises the following steps: using zirconium oxychloride, acetylacetone and triethylamine as main raw material and using ethanol as diluent solvent to directly react at a temperature of 0 DEG C to 50 DEG C under a stirring condition so as to generate an organic polymer solution comprising zirconium; evaporating the ethanol and using acetone as solvent to dissolve soluble substances and filter and remove an undissolved substance of triethylamine hydrochloride; recycling the acetone, dissolving the obtained products and yttrium salt to the ethanol to prepare a spinning solution which is centrifugally flung at a high speed to obtain organic polymer fibers comprising zirconium; and carrying out heat treatment in a special atmosphere and ultra-high temperature treatment of the organic polymer fibers comprising zirconium. The invention has simple preparation technology and can recycle the solvent, and the prepared crystal fibers have single ingredients, high purity and stable high-temperature performance and can be used in a range from 1700 DEG C to 2150 DEG C for a long time.

A series of organometallic complexes and the singlet oxygen sensitization properties of these complexes are provided. Complexes with acetylacetonate ligands give singlet oxygen quantum yields near unity, whether exciting the ligand-based state or the lowest energy excited state (MLCT+³LC). The singlet oxygen quenching rates for these β-diketonate complexes are small, roughly three orders of magnitude slower than the corresponding phosphorescence quenching rate. Similar complexes were prepared with glycine or pyridine tethered to the Ir(III) center (i.e. (bsn)₂Ir(gly) and (bt)₂Ir(py)Cl, where gly=glycine, and py=pyridine). The glycine and pyridine derivatives give high singlet oxygen yields.

A preparation method for carbon nanotube/nanonickel composite film material, relating to a method for preparing carbon nanotube/nanonickel composite film material on surface of metal foil, providing a method for preparing carbon nanotube film in acetylacetone by electrophoretic deposition, then electronically depositing nanoparticle of nickel on the carbon nanotube film by electrophoretic deposition, so as to prepare carbon nanotube/nanonickel composite film material with good catalytic and corrosion resisting property on surface of metal foil; depositing the metal foil processed by surface polishing and acetone oil removal in acetylacetone suspension having carbon nanotube by electrophoresis, undergoing electrophoretic deposition by direct current supply, then undergoing electrodeposit in nickel plating solution with constant current, after that, obtaining the carbon nanotube/nanonickel composite film material by drying process.

The invention discloses a ferro-nickel oxyhydroxide-modified bismuth vanadate photoelectrode and a preparation method and application thereof. The preparation method comprises the following steps: firstly, depositing bismuth oxyiodide on the surface of conductive glass, then coating the surface with the deposited bismuth oxyiodide with a dimethyl sulfoxide solution of vanadyl acetylacetonate, annealing, performing alkali soaking and rinsing with water to remove excessive vanadium pentoxide, and then drying to obtain a bismuth vanadate photoelectrode, and modifying ferro-nickel oxyhydroxide on the surface of the bismuth vanadate photoelectrode by adopting a cyclic voltammetry method in a three-electrode system, thus obtaining the ferro-nickel oxyhydroxide-modified bismuth vanadate photoelectrode. The invention further discloses applications of the ferro-nickel oxyhydroxide-modified bismuth vanadate photoelectrode in photoelectrocatalytic decomposition water. The prepared photoelectrode is used for producing hydrogen from photoelectrocatalytic decomposition water, can inhibit the compounding of photon-generated carriers, the service life of carriers generated by a BiVO4 photoelectrode can be effectively prolonged, and the oxygen evolution reaction on the surface of the photoelectrode can be promoted, so that the solar optic hydrogen conversion efficiency of a semiconductor photoelectrode can be improved.

The producing method of two-oxidation titanium fibre belongs to function fibre material technology scopes. Compose poly-acetamide acetone titanium to be the van-substance. Let chemic dosage of four-chloridize titanium, distilled water, acetamide acetone and three-ethylamine dilute in methanol respectively. Mix them and react when mixing round at 0-25 deg.C. Compose poly-acetyl acet, titanium. Remove hydrochloric three-ethylamine by using four-hydrogen furan. Dissolve poly-acetyl acet, titanium in methanol to make filature liquid. Obtain van-substance short fibre by using acentric swing method. Obtain van-substance long fibre by using dry filature method. And we can obtain two-oxidation titanium fibre by using high pressure or normal pressure vapor heat treatment technique agglomeration. The intension of extend of this invention is 100 MPa-1.2GPa. The diameter is 3um-20um. The one-thread series length is 1 cm-50 cm or higher than 1 m. The crystal diameter is 5 nm-100 nm. The appearance is two-oxide ation short fibre or consecutive fibre with titanium droff-titanium-mine posture or rutile posture or coexistence.

The invention provides an adhesive addition liquid silicone rubber. The adhesive addition liquid silicone rubber can be prepared via glue preparation from a prepared basic glue, an A component and a B component; or can be prepared by adding hydrogen-contained silicone oil, a platinum complex, tetravinyl tetramethylcyelo tetrasiloxane, silica powder of 3000 meshes, ZnO, a complex of aluminium and acetylacetone, polyborosiloxane, modified silane coupling agent, and a tackifier into dimethyl vinyl methylsiloxy-terminated polydimethylsiloxane, and full mixing. The adhesive addition liquid silicone rubber possesses advantages such as autoadhesion, low viscosity, high fluidity and excellent mechanical strength.

The invention relates to a method for using compound solvent reduction method to prepae silver nanometer wire, belonging to the technique of metallic powder preparation, with lower cost, environment protection and the application for industrial production. The method comprises: dissolving polyvinyl pyrrolidon in compound solvent whose volume ration is 1:0.1-1:1 between glycerin, and water, ethanol, isopropanol, glycol, or acetylacetone, to be heated; adding silver nitrate into the solution of glycerin and ion-exchange water whose volume is 1:2, to attain the Ag+ solution in 0.5-2.0M; using said solution to spray compound solvent and react 1/4-4 hours in 90-160Deg. C; collecting products; the mol percentage between the polyvinyl pyrrolidon and the Ag+ is 0.5-10; and the Ag+ solution sprays the regurgitated compound solvent in the speed of 3g/m2.s-10g/m2.s while the reaction time is 1-4 hours and the reaction temperature is 120-160Deg. C. The shape and size of particles are controlled by the ration of react matters and react condition, and said invention can attain the silver nanometer wires whose length is 5 mum-200 mum, diameter is 70-90nm, and reduced silver rate is 99%.

The invention provides a sunlight full-spectrum responding Ag2O/TiO2/V2O5 nano hetero-structure photocatalyst and a preparation method thereof. The preparation method is characterized by comprising the following steps: mixing tetrabutyl titanate, polyvinylpyrrolidone, absolute ethanol, dimethyl acetamide and glacial acetic acid so as to obtain a solution A, mixing vanadium(IV) oxide acetylacetonate, polyvinylpyrrolidone and dimethyl acetamide so as to obtain a solution B, mixing the solution A and the solution B so as to obtain a polyvinylpyrrolidone/titanate/vanadium(IV) oxide acetylacetonate mixed solution, spinning the mixed solution by an electro-spinning method so as to obtain TiO2/V2O5 nano fibers, then soaking AgNO3 and the TiO2/V2O5 nano fibers in deionized water, injecting a NaOH solution into the deionized water, and drying so as to obtain the Ag2O/TiO2/V2O5 nano hetero-structure photocatalyst. The Ag2O/TiO2/V2O5 nano hetero-structure photocatalyst can well absorb lights in the ultraviolet zone, visible zone, and near infrared zone; at the same time, energy bands of the Ag2O, TiO2, and V2O5 are reasonably matched, thus the photo-produced electronic cavities can be effectively separated, so the Ag2O/TiO2/V2O5 nano hetero-structure photocatalyst has a very high sunlight catalytic activity.

A filament lamp for an emission of yellow light, with a color film which is formed on the surface of the bulb, where the color film is essentially composed of a combined oxide of titanium, nickel and antimony. The color film may have a ratio of titanium, nickel and antimony to one another in a weight ratio of 5.6 to 8.6:3.6 to 6.6:1.0 to 1.8. Also, the color film may be a sintered coating formed by admixing a solution A produced by dissolving a nickel salt and an antimony salt in an organic solvent, addition of a titanium alkoxide and reaction of the reaction mixture; and addition of a stabilizer which forms a chelate with titanium with a solution B produced in substantially the same manner as solution A. The solutions A and B contain nickel nitrate-6-hydrate, antimony trioxide, tetraisopropoxy titanium, acetyl acetone, and/or water.