150results about How to "Response equipment requirements are low" patented technology

The invention provides a method for preparing adipic acid through liquid-phase catalytic oxidation of cyclohexanol. H2O2 is taken as oxidant, a heteropoly acid imidazole salt is taken as catalyst, the cyclohexanol undergoes the catalytic oxidation to prepare the adipic acid, the catalyst can be phosphotungstic acid 1-butyl-3-methylimidazolium bmim3PW12O40, phosphomolybdic acid 1-butyl-3-methylimidazolium bmim3PMo12O40, and molybdovanadophosphoric heteropolyacid 1-butyl-3-methylimidazolium bmim3+xPMo12-xVxO40 (x is equal to between 1 and 3) and so on, and the bmim represents a 1-butyl-3-methyl-imidazolium cation. Compared with the method of preparing the adipic acid by industrially using nitric acid (nitrate) to oxidize the cyclohexanol, the method can not produce poisonous oxynitride N2O, and avoids the harm to the environment; and in a reaction system, phase shift catalyst and addition agent are not used, which avoids the potential environmental pollution and has apparent economic and social significance.

The invention relates to a synthetic method for high-purity iron phosphate and a doped metallic element thereof. A material prepared by the synthetic method is mainly applied to the preparation of a high-quality electrode material, namely lithium iron phosphate, and the synthetic method comprises the following steps: taking a phosphor source, an iron source compound and a doped metallic oxide as raw materials, adding a surfactant, reacting by high-speed stirring under normal pressure and low temperature, finally synthesizing into the substance of which the chemical formula is Fe1-xMxPO4.nH2O through seasoning, washing, filtering and drying, wherein M is the doped metallic element, and x is greater than or equal to 0 and smaller than or equal to 3, and n is greater than or equal to 0 and smaller than or equal to 2. The pH value is not needed to control in the synthetic process, and the requirement on equipment is low, moreover, the preparation technology is simple and environment-friendly; a synthesized product is low in cost, stable in performance and high in purity.

The invention discloses a new method for quickly preparing graphene. A metal catalyst and a halogenated hydrocarbon are used as raw materials; and after the raw materials are reacted in a high-temperature and high-pressure reaction kettle under the inert atmosphere, the reaction product is purified to obtain the graphene. The method has the advantages of simple process flow and low reaction equipment requirement; and the prepared graphene has low layer number and is of large and complete sheet. The method provides a new path for large-scale application of the graphene in industrialized products such as lithium batteries, capacitors and the like.

The invention relates to a method to make cyclohexanone by catalytic oxidation cyclohexanol that includes H₂O₂ as oxidant. The catalyst is Q_3+xPMo_12-xV_xO₄₀, of which x=1-3, Q represents quaternary ammonium positive ion or MH₄⁺. The invention avoids using noble metal as catalyst, has low reaction temperature, low reaction powder consumption. The invention almost has no pollution, and has good economic and social benefits.

The invention relates to a positive/negative (P/N) heterojunction based silicon/titanium dioxide three-dimensional composite material with synergic anti-reflection performance. The silicon/titanium three-dimensional composite material is prepared according to the following method of (1) firstly, carrying out anisotropic etching on a silicon wafer with an alkali liquid, and forming a closely-arranged square conical shape on the surface of the silicon wafer; (2) secondly, carrying out hydrophilic treatment on the silicon wafer etched in the step (1), growing titanium dioxide crystal seed on the surface of the silicon wafer, and placing the silicon wafer in a muffle for calcination; and (3), finally, placing the silicon wafer with the titanium dioxide crystal seed on the surface, obtained in the step (2), in a reaction kettle, and obtaining the silicon/titanium dioxide three-dimensional composite material by adopting a hydrothermal method. The composite material disclosed by the invention is compatible with capabilities of excellent reflection elimination and high-efficiency photo-induced charge separation, and can be applied to the fields such as photocatalysis, a photoelectric conversion device and a solar cell.

The invention discloses a phenol wastewater treatment method and a preparation method of a CuO/ZSM-5 catalyst. Compared with the prior art, CuO is loaded on ZSM by an impregnation method to prepare a composite catalyst with good performance; persulfate is catalyzed to generate sulfate radicals to play stronger oxidizing ability; the treatment cost is reduced, the requirements on reaction equipment are not high, and the method is simple and easy to implement, has high operability and facilitates practical promotion and application; and moreover, the mineralization conversion of pollutants is thorough, the pollutants are converted into corresponding nontoxic substances, secondary pollution is avoided, the highest conversion rate of phenol can reach 99%, and the method has remarkable environmental advantages and economic advantages.

The invention relates to a grapheme spherical assembly and a preparation method thereof. The method comprises the following steps: performing solvothermal reaction by taking an iron catalyst, sublimed sulfur and organic phenols as reactants; and performing the subsequent carbonization treatment and acid treatment to obtain the grapheme spherical assembly with uniform diameter distribution. The process is simple, the preparation cost of materials is low, and the purity is high. Experimental results show that the grapheme material has good lithium storage performance in a lithium battery.

The invention provides an easily-dyed waterborne polyurethane resin. The polyurethane resin comprises the following components in percentage by weight: 40%-80% of a monohydroxy or polyhydroxy compound, 0.5%-20% of an ionic or potential hydrophilic compound, 10%-45% of an aliphatic isocyanate compound, 0.5%-10% of low molecular weight compound, 0%-10% of auxiliaries and additives and the balance of water, wherein the monohydric or polyhydric compound comprises 20 wt%-60 wt% of the polyester polyol, 15 wt%-50 wt% of polyether polyol and 0 wt%-30 wt% of monohydroxy polyether. The invention also provides a preparation method and an application of the polyurethane resin. The waterborne polyurethane resin prepared by the invention is easily dyed, simple in dyeing process and has good high temperature resistance and color fastness, excellent resistance to light as well as a certain waterproof property and moisture penetrability.

The invention relates to a compound and a synthesis method thereof, in particular to an oxa-spiro bridged UPy compound and a synthesis method thereof. The oxa-spiro bridged UPy compound is an oxa-spiro bridged UPy compound condensed on basis of pentaerythritol. The synthesis method comprises the steps as follows: an oxa-spiro binitro compound is synthesized firstly, an oxa-spiro biamino compound is synthesized, then, an activated UPy compound is synthesized, and finally, the oxa-spiro bridged UPy compound based on pentaerythritol is synthesized. The method is simple in process and has wide application prospects, and raw materials are easy to obtain. Resources can be saved and the total yield can be increased. A dynamically reversible super-molecular polymer structure with good mechanical performance is formed.

The invention provides a method for etching an FTO (fluorine-doped tin oxide) conductive thin film. The method includes steps of depositing the FTO conductive thin film on a substrate, covering an insulating etching-resistant layer on one side of the FTO conductive thin film according to preset patterns and further acquiring a cathode; placing the cathode and an inert anode into acid electrolyte, applying a constant voltage between the cathode and the anode, and etching and removing parts, which are not covered by the insulating etching-resistant layer, of the FTO conductive thin film. The method for etching the FTO conductive thin film has the advantages that the method is scientific and reasonable, various shortcomings in the prior art are overcome, and the etching production efficiency and the etching precision are high.

The invention discloses a method for regulating the morphology and the structure of nanometer silicon. The method is characterized in that the crystal silicon is adopted as a precursor, a water-ethanol-ammonia water mixed solution is adopted as a reaction system, and the crystal silicon is stirred and reacted in the mixed solution at a constant temperature. By controlling the volume ratio of the water to the ethanol and the reaction time, silicon/silicon dioxide composite nanometer particles respectively with nuclear shells, egg yolk shells and hollow structures can be obtained. By adopting the method, a novel method can be provided for the mass application of a silicon-based material in the fields such as lithium ion batteries, catalysts, medicine releasing agents, nanometer reactors and the like.

The invention discloses non-isocyanate polyurethane monomer and a preparation method thereof. The non-isocyanate polyurethane monomer is of a structure shown as follows, wherein R is selected from saturated alkane, unsaturated alkane or aromatic hydrocarbon, R1 is methyl or hydrogen group, R2 is alkyl, and R3 is hydrogen or alkyl. The non-isocyanate polyurethane monomer has double-bond groups, thereby being very easy to form polymer and copolymer, has non-isocyanate polyurethane special groups, has good corrosion resistance, chemical resistance, hydrolysis resistance and penetration resistanceand makes up weak-bond structure in conventional polyurethane molecules; the preparation process only includes two times of amidation reaction, so that the preparation method is simple in preparationprocess.

The invention discloses a cement grinding aid. The cement grinding aid is made of the following raw materials by weight: 50-60 parts of aqueous polyhydroxy copolymer and 30-40 parts of modified hyperbranched polyethyleneimine. A preparation method of the cement grinding aid is further disclosed. The preparation method includes the following steps: mixing the raw materials uniformly in proportion,and then grinding to obtain the cement grinding aid. The cement grinding aid has the advantages of low production cost, low dosage, effective improvement of cement lubricity and output per machine, remarkable improvement of grinding aid effects, safety and environmental protection.

The invention discloses a synthetic method of dimethyl cysteamine hydrochloride. The method comprises the following steps of: synthesizing 5,5-dimethyl-2-isopropyl thiazoline by taking isobutylaldehyde, element sulfur, ammonia gas and triethylamine as raw materials; reducing the 5,5-dimethyl-2-isopropyl thiazoline into 5,5-dimethyl-2-isopropyl thiazolidine under the actions of sodium borohydride and acid; and reacting the 5,5-dimethyl-2-isopropyl thiazolidine and phenyl hydrazine under the air insulating situation to obtain dimethyl cysteamine hydrochloride. The method has the advantages of readily-available reaction raw materials, easiness for operating the reaction process, low requirement on the reaction equipment, relatively mild reaction conditions, feeding of the product of every step of reaction into a next step reaction after refining and purifying, high yield and high purity, and the purity of the finally-obtained dimethyl cysteamine hydrochloride is close to 100 percent.

The invention discloses a fluorine modified Fe3O4 magnetic nano material and a preparation method and applications thereof, and belongs to the fields of magnetic functional materials and water treatment research. For the first time, an Fe3O4 magnetic nano material is doped and modified by negative fluorine ions; a solvothermal method is adopted to in-situ synthesize the fluorine modified Fe3O4 magnetic nano material, which has an excellent degrading performance on orange G dye wastewater, can be easily and magnetically separated and recovered, and can be used in cycle; furthermore, the raw materials are cheap and easily available, the operation is simple and convenient, and the nano material has a potential application prospect.

The invention discloses long-chain alkane polyurethane and a preparation method and application thereof. The structure of the long-chain alkane polyurethane comprises the following repetitive units: afirst repetitive unit from diisocyanate, a second repetitive unit from a chain extender and a third repetitive unit from a hydrogenated product of unsaturated dihydric alcohol, wherein the unsaturated dihydric alcohol comprises hydroxyl-terminated polyolefin type dihydric alcohol; and the hydrogenation degree of carbon-carbon double bonds in olefin in the unsaturated dihydric alcohol is greater than or equal to 99 mol% (preferably greater than or equal to 99.5 mol%). By the preparation method, problems of hydroxyl dropping of a polyurethane product, severe degradation of carbamate, residual precious metal and the like can be reduced effectively. The preparation method has losts of advantages of short reaction period, low environmental pollution, high yield and the like, and is particularly suitable for industrial production. In addition, the long-chain alkane polyurethane is particularly suitable for the field of medical materials such as artificial skin and artificial blood vessels.

The invention discloses a method for preparing a nano ZnO-GO/waterborne polyurethane super-amphiphobic coating through a spraying method. An ultrasonic hydrothermal composite method is adopted, nano zinc oxide is modified through perfluorooctyl trichlorosilane, then the modified nano ZnO carries GO, and nano ZnO-GO composite substance is obtained; a waterborne polyurethane layer is prepare on thesurface of a substrate; then a low-surfacce-energy nano ZnO-GO composite substance layer is established on the surface of the waterborne polyurethane layer; and after coating curing is finished, the surface topography and the static contact angle of a cured coating are tested. By means of the method, the surface energy of the nano zinc oxide is lowered, the surface hydrophobicity and lipophobicityof the nano ZnO-GO composite substance layer after fluoridation treatment are improved, the super-amphiphobic effect is achieved, and the stability of the coating is improved. The method is low in production cost, the preparation method is simple, the requirement for a reaction facility is low, the reaction conditions are mild, no environmental pollution occurs, and large-scale production can beachieved.

The invention provides a method for preparing a benzene liquid-phase product by virtue of catalytic cracking of a wood-plastic composite and relates to the field of the utilization of the biomass energy. The method is mainly used for solving the technical problems that the existing benzene product preparation method has high requirements on reaction equipment and reaction conditions, long reaction period and high production cost. The method comprises the steps of pyrolysis, reaction and condensation. According to the method, the pyrolysis gas of the wood-plastic composite is directly and catalytically cracked in the presence of a zeolite molecular sieve catalyst; the provided method is simple in process, low in requirements on reaction equipment and reaction conditions, and relatively short in reaction period. The method is used for preparing the benzene series liquid-phase product.