476 results about "Organic reaction" patented technology

The invention discloses a textile dyeing wastewater advanced treatment recycling technology. The technology comprises the following steps: filtering to remove textile fibers; cooling; neutralizing, degrading organic matters and decomposing, replacing or degrading (cracking) the chormophoric groups of the organic matters to reduce the chroma of the wastewater; performing biochemical treatment with the biomembrane; precipitating to ensure that the precipitated sludge enters a sludge treatment system and the supernatant enters a flocculation pool; performing chemical treatment, namely adding a medicament in the flocculation pool to remove the suspended matter (SS), CODcr (chemical oxygen demand), BOD (biochemical oxygen demand) and chroma of the water; performing secondary precipitation to ensure that the free SS is precipitated and the wastewater is decolored further; separating to remove and degrade the chloride ions of the reuse water; performing secondary biochemical treatment to further reduce the concentrations of the SS, CODcr and BOD in wastewater; performing ozone oxidation treatment, decoloring, degrading organic matters; performing chemical treatment to remove insoluble dye materials and SS and reduce the COD and chroma; and performing secondary filtration, and forming an ozone/activated carbon system to ensure that the hydroxyl radicals of activated carbon are used and the organic reaction in wastewater is adopted to decolor and degrade organic matters. The invention overcomes the defects of the existing physical method, chemical method and chemical method treatment technologies; and the technology has been used in many enterprises, and the good treatment effects are obtained.

The invention provides an imine coupled covalent organic framework material and a preparation method and application thereof and belongs to the technical field of porous materials. The structural formula of the imine coupled covalent organic framework material is shown in the description, and the material can be prepared by triazinyl aromatic polyamine A and alkoxy substituted aromatic aldehyde B through simple Schiff base condensation reaction. Under visible light excitation condition, the prepared imine coupled covalent organic framework material can catalyze multiple types of organic reactions, specifically for example reaction for photocatalysis of N-aryl tetrahydroisoquinoline and nucleophilic reagent. The prepared covalent organic framework material has very good chemical stability and heat stability, high specific surface area and high crystallinity, has strong visible light absorption properties, can serve as an excellent heterogeneous photocatalyst and has good industrial application prospect.

The invention pertains to the new material technical field, and relates to a method for preparing a carbonaceous solid acid catalyst and biodiesel by taking pure natural biological substances as raw materials. The method is characterized by: taking the pure natural and renewable biological substances as the raw materials; adopting the technical route and method of low-temperature carbonization firstly, oxidation secondly and sulfonation then according to the constituent and structural characteristics to prepare the bio-carbonaceous solid acid catalyst; and adopting a continuous rectification-water separating esterification reaction technology to produce the biodiesel by carrying out the catalytic esterification reaction of a free fatty acid or waste oil and short chain alcohol. The raw materials adopted by the invention are rich in resources, low in price, pure natural and renewable, which pertains to waste utilization; the preparation technology is simple with moderate and controllable reaction conditions; the catalyst has the advantages of high activity, good stability, easy recycling and no corrosion to equipment, which is an really environment-friendly catalyst, thus being applicable to the large scale industrial production of the biodiesel. The method can also be applied to a plurality of organic reactions such as alkylation, hydrolysis and hydration, etc.

The invention relates to a preparation method and application of a biological organic-inorganic liquid fertilizer. The biological organic-inorganic liquid fertilizer mainly comprises the following components: a beneficial bacterium with the content of 0.5 to 2 hundred millions per milliliter, nitrogen phosphorus and potassium with the content of 150g/L to 350g/L, organic carbon with the content of 150g/L to 300g/L, and a medium trace element with the content of 1g/L to 20g/L. The preparation method of the biological organic-inorganic liquid fertilizer comprises the following steps of first, carrying out fermentation cultivation on a beneficial microorganism solution, so that the content of an effective bacterium in the beneficial microorganism solution is above 100 hundred millions per milliliter, adding a microbial inoculum vigor-sustaining agent into a bacterium solution, treating the bacterium solution for 2 hours, then adsorbing the bacterium solution which is well treated by using a carrier, and adding the bacterium solution of which the adsorption is completed into the organic-inorganic liquid fertilizer, wherein the organic-inorganic liquid fertilizer needs to be subjected to a reaction in advance, so that inorganic nutrients in the organic-inorganic liquid fertilizer are subjected to an organic reaction, so as to reduce the harm of a high salt to a live bacterium.

Nanocrystal-metal oxide-polymer composites and their methods of preparation are described. The composites comprises a number of nanocrystals within a metal oxide matrix, and an oligomer or polymer covalently bonded to organic reactive groups of the metal oxide matrix. The composites can be applied to a variety of electronic devices. The electronic devices constructed from the composites do not decrease in performance rapidly due to degradation and exhibit improved stability.

The invention relates to a doped hexagonal boron nitride nano sheet, a preparation method thereof, a catalyst using the same as the carrier, and applications thereof. The preparation method comprises the following steps: adding a single substance or compound of hetero atoms, a single substance or compound of boron, and a nitrogen compound into water, evenly mixing, drying to remove water; then grinding the solid, placing the powder in a tubular furnace, introducing inert gas into the tubular furnace, heating the tubular furnace to a temperature of 800 to 1200 DEG C by program to carry out reactions, after reactions, cooling to the room temperature; grinding the reaction products, then boiling the grinded products in hot water, filtering when the water is still hot, washing the filter residue by hot water and ethanol, and drying. The doped hexagonal boron nitride nano sheet is taken as the carrier to prepare a catalyst, the active components loaded on the carrier can be one or more of transition metals, and the catalyst is used to catalyze organic reactions. A high temperature pyrolysis method is adopted, and the controllable preparation of nano material is achieved through controlling the ratio of each element in raw materials. The method is simple, the operation is easy, and the yield is high. The doped hexagonal boron nitride nano sheet can be used as the catalyst carrier, and is capable of improving the dispersity and catalytic activity of metal nano particles.

The invention provides a method for preparing phenolic chemicals through the thermo-chemical conversion of industrial lignin. The method is as follows: under the common functions of solid acid catalyst and hydrogen supply solvent, industrial lignin performs atmospheric thermo-chemical conversion in high boiling point organic reaction medium to prepare homogeneous low molecular weight organic matter with rich phenolic compounds such as phenol, methoxyphenol, dimethoxyphenol and 2-methoxy-4-methylphenol, and the organic reaction medium is recycled through the technologies such as vacuum distillation. The method has simple process, good stability and low production cost; and the yield of the prepared phenolic compounds is more than 54%. The method plays an important role in the high-valued comprehensive utilization of the renewable resource, namely ndustrial lignin; and the converted phenolic chemicals can be used to synthesize phenolic resin, prepare high efficiency cement water-reducing agent and further separate, purify and prepare bio-chemicals. Particularly, by adopting the method, the lignin in papermaking black liquid and preparation residue of biological fuel ethanol prepared from cellulose can be converted to phenolic chemicals; and the method has wide application prospect.

The invention relates to a chiral spiro-phosphate and a preparation method and application thereof. The chiral spiro-phosphate compound has a structure of a formula (1) and has the main structural characteristic of chiral spiral dihydroindene skeleton. The chiral spiro-phosphate compound can be synthesized by using 1,1'-spiro-dihydroindene-7,7'-diphenol with spiral skeleton and optical activity as a chiral initial raw material. The chiral spiro-phosphate is a novel protonic acid organic small molecular catalyst, can be widely applied in various catalytic asymmetric organic reactions, particularly can be applied in asymmetrical catalytic reaction of indole alkylation, and has and high enantiomer selectivity, the reaction condition is mild , and the yield is good.

Methods and apparatus for vapor deposition of an organic film are configured to vaporize an organic reactant at a first temperature, transport the vapor to a reaction chamber housing a substrate, and maintain the substrate at a lower temperature than the vaporization temperature. Alternating contact of the substrate with the organic reactant and a second reactant in a sequential deposition sequence can result in bottom-up filling of voids and trenches with organic film in a manner otherwise difficult to achieve. Deposition reactors conducive to depositing organic films are provided.

Sildenafil, a known pharmaceutical chemical useful in treatment of male sexual dysfunction, is prepared by processes in which the final chemical intermediate is of significantly lower basicity than sildenafil itself, so that sildenafil can be extracted in substantially pure form from the organic reaction mixture in which it is made by adding an aqueous medium of appropriately chosen acidic pH and causing phase shift of the sildenafil to occur selectively into the aqueous phase.

The invention relates to a preparation method of a high efficient sulfonated carbon solid acid catalyst. According to the method, biomasses and aromatics, which are treated as reaction monomers, are used to form carbon materials with abundant surface aromatic structures through a solvent heat carbonization method, and are sulfonated by concentrated sulfuric acid to obtain the solid acid catalyst with high acid amount and high stability. The method has the outstanding characteristics that: the biomasses are used as a precursor, the aromatics are introduced, effective aromatic sulfonation is guaranteed through providing a lot of aromatic nuclei, a lot of sulfonic acid groups can be introduced, the sulfonated coal solid acid prepared with the aromatics has a higher catalytic efficiency than sulfonated coal solid acids with no aromatics added, so aromatic adding plays an important role in sulfonation; and the catalyst has the advantages of controllable acid amount, high reaction activity and good stability, can be recovered, performs excellent activity and cyclical stability in a series of organic reactions such as synthesis of biodiesel and fine chemicals, conforms to the requirements of modern society, is environment friendly, and possesses a wide application prospect.

The present invention relates to microporous molecular sieve materials and their analogue molecular sieve materials having a crystalline unilamellar or multilamellar framework with a single unit cell thickness in which layers are aligned regularly or randomly, the molecular sieve materials being synthesized by adding an organic surfactant to the synthesis composition of zeolite. In addition, the present invention relates to micro-mesoporous molecular sieve materials activated or functionalized by dealumination, ion exchange or other post treatments, and the use thereof as catalyst. These novel materials have dramatically increased external surface area by virtue of their framework with nano-scale thickness, and thus exhibit improved molecular diffusion, and thus have much higher activities as catalyst and ion exchange resin than conventional zeolites. In particular, the materials of the present invention exhibit high reactivity and dramatically increased catalyst life in various organic reactions such as carbon-carbon coupling, alkylation, acylation, etc. of organic molecules.

The invention relates to a ternary composite catalyst containing platinum, transition metal oxide and graphene and a preparation method thereof. The method comprises putting graphite oxide into water for ultrasonic dispersion, adding salt solution of the transition metal with continuous stirring so as to fully mix the system, heating to a certain temperature to react, centrifuging to get solid products after the reaction finishes, putting the solid products into a mixed solution of water and glycol for ultrasonic dispersion, adding a platinum nitrate solution and uniformly mixing, and then transferring the mixed system to a hydrothermal reactor to react and obtain the ternary composite catalyst containing the platinum, the transition metal oxide and the grapheme. The catalyst provided by the invention has a relatively good application prospect and economic benefit in fields of organic reaction catalyzing and fuel cells.

Methods of resource recovery include reagents placed in a subterranean formation. The reagents generate heat, hydrogen gas and alkalinity which changes fluid flow characteristics. The forces of the reactions create fractures and cracks far from the well bore. These cracks and fractures are sealed if water is being transmitted through or near the reactions. As a result, the targeted fluids more efficiently flow to the well, along with decreased amounts of water waste, while stimulating generation of biogenic gases in the subterranean formations.

The invention provides N,N,N,N-tetramethylethylenediamine sulphonate ionic liquid and a preparation method thereof, belonging to the technical field of organic chemical synthesis. The preparation method of the ionic liquid comprises the following steps: using N,N,N,N-tetramethylethylenediamine and sultone to react at room temperature in the presence of acetone and absolute ethanol to obtain N,N,N,N-tetramethylethylenediamine sulphonate inner salt, and then using N,N,N,N-tetramethylethylenediamine sulphonate inner salt to react with inorganic acid or organic acid to obtain disulfonic acid groupacidic ionic liquid with N,N,N,N-tetramethylethylenediamine cationic group. The prepared ionic liquid can be used as the catalyst or solvent of organic reactions, in particular to the catalytic reaction of inorganic acid or organic acid; compared with the existing monosulfonic group acidic ionic liquid used as catalyst, the N,N,N,N-tetramethylethylenediamine sulphonate ionic liquid has higher catalytic activity, less dosage, less loss in cycle use, higher product yield and more environmentally friendly.

The invention discloses a method for preparing graphene-noble metal inorganic nanoparticle compound hydrogel. The method comprises the steps of 1, evenly mixing oxidized graphene dispersion liquid, a noble metal compound and a reducing agent to obtain mixed liquid; 2, irradiating the mixed liquid with high-energy ray for irradiation reaction. The invention further provides compound hydrogel prepared with the method, and aerogel prepared after drying. According to the method for preparing the hydrogel, the in-situ reduction self-assembly method is adopted by means of the irradiation technique, operation is easy, and environment friendliness is realized; the compound aerogel is of a macroporous structure, noble metal is evenly dispersed and adsorbed on the surface of oxidized graphene, functions of graphene aerogel and functions of noble metal nanoparticles are combined, electric conductivity is high during organic solvent adsorption, corresponding electro-catalysis reaction is made feasible, and the method has great potential application value in organic reaction catalyzed synthesis including micromolecule electroanalysis and electro-catalysis, synthesis of petroleum organic intermediate and other fields.

The invention is in a conductive prepolymer composition which when polymerized and cured is used to coat a substrate material such as steel, stainless steel, iron, brass, copper, aluminum, platinum, titanium, silver, gold, Telfon, plastics, glass, or combinations thereof. It comprises: (a) from 25 to 99 parts by weight of a poly(amide-imide) prepolymer; (b) from 1 to 25 parts by weight of a trifunctional ester selected from the group consisting of trifunctional methacrylate ester, trifunctional acrylate ester, and mixtures thereof; (c) from 0.5 to 15 parts by weight of an organo-reactive silane consisting of an amino group containing alkoxysilane having the formula NH2(CH2)nSi(OC2H5)3, where n is an integer from 1 to 20; and (d) a conductive additive. The invention also provides polymer coated substrates having a tenaciously bound polymer layer which is corrosion resistant, has advantageous properties of conductivity and can be soldered.

The invention discloses preparation of copper ion-doped carbon quantum dots, obtained carbon quantum dots and application. A carbon source, a nitrogen source, and a copper source are dispersed in an organic solvent, and a solvothermal reaction is performed to obtain the copper ion-doped carbon quantum dots. The preparation method is simple, complex functional groups are not required to be introduced for an organic reaction, a simple mixing and heating reaction is performed, and the preparation method is suitable for industrial application; in addition, the obtained copper ion-doped carbon quantum dots have a very high fluorescence quantum yield, which is up to 93%; meanwhile, the copper ion-doped carbon quantum dots have good fluorescence performance in the organic solvent, but the fluorescence intensity is obviously quenched after addition of a small amount of water, so that the copper ion-doped carbon quantum dots can be applied to detection of the water content of the organic solvent and the detection limit can reach 0.01%.

The invention discloses a method for preparing a Schiff base functionalized ordered mesoporous PMO material solid supported Cu(I) heterogeneous catalyst and application thereof in a Glaser organic reaction in an aqueous medium. The method comprises the following steps of: mixing 0.90 to 1.2g of amino-functionalized PMO with 15 to 25ml of ethanol and 0.8 to 1.2 mmol of 2-pyridylaldehyde solution; stirring the mixture for 12 to 18 hours at room temperature; then filtering and washing the mixture, performing vacuum drying and standing overnight to obtain an ordered mesoporous Schiff base functionalized PMO (Et); adding 0.40 to 0.60g of Schiff base-PMO (Et) into 12 to 18 ml of dimethyl sulfoxide solution which contains 0.1 to 0.3 mmol of CuI; stirring the mixture for 24 to 36 hours at the room temperature; filtering the solids and washing the solids by using the dimethyl sulfoxide and ethanol in turn; and finally performing vacuum drying on the product and standing overnight so as to obtain an ordered mesoporous organic metal copper heterogeneous catalyst. The catalyst has the advantages of organic group content, higher hydrophobic property, easy diffusion of an organic reactant in a pore channel, well contact with a catalytic active site, improvement of catalytic efficiency, ordered mesoporous structure, uniform pore diameter distribution, and large specific surface area.

The invention relates to a palladium-transition metal oxide-graphene ternary composite catalyst and a preparation method thereof. The method comprises the following steps of: putting graphite oxide in water and performing ultrasonic dispersion; adding saline solution of transition metal to the water and continuously stirring to enable the system to be fully and evenly mixed; then, heating a certain temperature for reaction; performing centrifugal separation after the reaction is ended to obtain a solid product; putting in a mixed solution of the water and ethylene glycol for the ultrasonic dispersion; adding palladium nitrate solution to the mixed solution and evenly mixing; and then, transferring the mixed system to a hydrothermal kettle for reaction to obtain the palladium-transition metal oxide-graphene ternary composite catalyst. The catalyst is better in application prospect and economic benefit in the field of catalytic organic reaction and fuel cells.

The invention discloses a kinetic resolution method of chiral amine, comprising the following steps of: adding chiral amine and acyl donor at the mol ratio of 1:0.5-3 into an organic solvent reaction system, adding lipase which accounts for 10-80 wt% of the weight of chiral amine, and reacting at the reaction temperature of 30-70 DEG C for 12-48 hours to obtain amide with the conversion rate of 50% and e.e value being greater than 99%. According to the invention, resolution of chiral amine can be mildly realized under the condition of enzyme catalysis; and simultaneously, the product has good optical purity, high yield and great application values.

This invention relates to a method for preparing an ionic liquid with halogen anions. The method comprises: (1) uniformly mixing compound (I) and halogenated hydrocarbon (II) at a mol. ratio of 1:(1.0-1.05) at normal temperature; (2) adding into a reaction kettle, reacting at room temperature to 150 deg.C under 0.105-0.25 MPa for 0.5-20 h, recovering the pressure to normal pressure after the reaction, cooling, extracting with 1/5-4/5 volume ethyl acetate for 2-3 times, and vacuum-distilling at 40-80 deg.C for purification. The method has such advantages as rapid reaction, short time and low cost, and is environmentally friendly. The prepared ionic liquid can be used as the solvent for organic reactions and polymerizations, and in chemical separation and electrochemical field.