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39 results about "Phenols" patented technology

In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of a hydroxyl group (—OH) bonded directly to an aromatic hydrocarbon group. The simplest of the class is phenol, C₆H₅OH. Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the molecule.

Method for removing phenol in phenol contained wastewater by using hollow fiber membrane

InactiveCN103304005AImprove stabilityImprove mass transfer efficiencyWater contaminantsWater/sewage treatment bu osmosis/dialysisHollow fibre membraneBenzene
The invention discloses a method for removing phenol in phenol contained wastewater by using a hollow fiber membrane. The method comprises the following steps of: mixing a carrier and a diluent to prepare an extractant, wherein the adopted extractant carrier is tributyl phosphate, and the adopted diluent is coal oil or benzene; stirring and fully mixing the extractant and a stripping agent to prepare treating fluid; removing the phenol out of the phenol contained wastewater by using a hollow fiber membrane device; and after pretreating the hollow fiber membrane device, injecting the treating fluid into a tube pass of a membrane component, and injecting the phenol contained wastewater into a shell pass of the hollow fiber membrane component, wherein the wastewater can be treated through the same membrane component or a plurality of serial membrane components in a circular manner for many times; after the wastewater is subjected to two-stage treatment, the phenol concentration is less than 100mg/L; and after the wastewater is subjected to five-stage treatment, the phenol concentration is less than 5mg/L, the removal rate reaches up to 99.8 percent, and the wastewater reaches the national emission standard.
Owner:BEIJING UNIV OF CHEM TECH

Modified naphthalene formaldehyde resin, tricyclodecane skeleton-containing naphthol compound and ester compound

ActiveUS20110009574A1Improve heat resistancePreparation from carboxylic acid halidesOrganic compound preparationFiberResist
A modified dimethylnaphthalene formaldehyde resin is disclosed, which is excellent in heat resistance and useful for thermosetting resins which are used for an electrical insulating material, a resin for resist, a semiconductor sealing resin, an adhesive for printed wiring board, a matrix resin for electrical laminate or prepreg to be mounted in electrical instruments, electronic instruments, industrial instruments, etc., a buildup laminate material, a resin for fiber-reinforced plastic, a sealing resin for liquid crystal display panel, a paint, a variety of coating agents, an adhesive, a laminate for electrical or electronic parts, a molded article, a coating material, a sealing material and the like, the modified dimethylnaphthalene formaldehyde resin being obtained by modifying a polyfunctional dimethylnaphthalene formaldehyde resin having a constituent unit represented by the following general formula [1] in a molecule thereof with at least one member selected from the group consisting of a phenol represented by the following general formula [2], a naphthol represented by the following general formula [3] and a naphthol represented by the following general formula [4] (provided that at least any of the naphthol represented by the general formula [3] or the naphthol represented by the general formula [4] must be included).
Owner:MITSUBISHI GAS CHEM CO INC

Method for detecting polar phenol type chlorinated/brominated disinfection by-products in water

InactiveCN106124646AHigh sensitivityReduce mistakesComponent separationGradient elutionPhenol
The invention provides a method for detecting polar phenol type chlorinated/brominated disinfection by-products in water. The method comprises steps as follows: 1) standard working solutions of 13 polar phenol type chlorinated/brominated disinfection by-products required to be detected are prepared; 2) a to-be-detected water sample is acidized, salted out, subjected to continuous liquid-liquid extraction, separated, concentrated, filtered and pretreated in other modes; 3) analysis is performed by means of a UPLC/ESI-tqMS (ultra-high performance liquid chromatography/electrospray ionization-triple quadrupole mass spectrometer): mass spectrum parameters, liquid chromatography parameters and gradient elution process parameters of the UPLC/ESI-tqMS are established; 4) a calibration curve is drawn and the concentration is calculated after a chromatographic peak of a chromatogram sample is preliminarily determined to be identical to that of a known standard substance and the chromatogram sample and the known standard substance are the same substance. The detection method is high in sensitivity, precision and accuracy, can achieve the purpose of rapidly and efficiently measuring the 13 polar phenol type chlorinated/brominated disinfection by-products in the water, particularly can rapidly and efficiently detect a trace quantity of polar phenol type chlorinated/brominated disinfection by-products in the water, and has relatively high practical value.
Owner:NANJING UNIV

Anti-flaming thermal-insulation environmentally-friendly polymeric foaming material and method for producing the same

InactiveCN102516710ALow thermal conductivityImprove insulation effectPolymer sciencePolyvinyl alcohol
The invention discloses an anti-flaming thermal-insulation environmentally friendly polymeric foaming material and a method for producing the material. The method comprises the following steps: preparing a urea resin foam adhesive by successively adding 37 % of formaldehyde, polyvinyl alcohol and glycerin in a reaction kettle and stirring to heat up and then adding urea, hexamethylene tetramine, stabilizer and thiourea, preparing a foaming agent by firstly adding water in a stirring tank, successively adding nekal and nonylphenol polyoxylethylene ether with stirring, heating up for completely dissolving, and then adding phosphoric acid, glycerin and sodium phosphate, uniformly stirring until completely dissolving, and discharging and packaging, and preparing a foamed product by taking the urea resin adhesive, urea and the foaming agent, mixing and stirring uniformly, putting in a foaming machine to foam, and carrying out foaming, extrusion molding, drying and packaging. The invention can be widely applied in thermal insulation of building facilities, thermal insulation of venue decoration, shock absorption, replacement of benzene plate flexible package without anti-flaming property, and the like.
Owner:王喆

Production method of ortho-aminophenol

PendingCN114181098AOrganic compound preparationAmino-hyroxy compound preparationM-aminophenolPtru catalyst
The invention relates to the technical field of chemical engineering, in particular to a production method of ortho-aminophenol. The method comprises the following steps: mixing and dissolving 60% ethanol and o-nitrophenol through a pipeline mixer; feeding the dissolved material into a hydrogenation device, adding a catalyst, heating, pressurizing and hydrogenating; the hydrogenation liquid which is qualified after a period of reaction enters a catalyst continuous settler, the supernatant liquid from the settler enters a ceramic membrane filtration system after being subjected to pressure reduction, and the supernatant liquid without the catalyst is sent to a continuous crystallizer; cooling and crystallizing the material through heat exchange of cooling water and chilled water; after the crystallization is finished, putting a crystallization solution into a centrifugal machine for solid-liquid separation; and drying the centrifuged wet product in a double-cone vacuum dryer to obtain the product. The method achieves the beneficial effects of solving the problems of pollution and low yield of an iron powder reduction method through the processes of hydrogenation reduction, crystallization, refining, drying and packaging.
Owner:LIAONING SHIXING PHARMA & CHEM

Preparation method and application of efficient agricultural water suspension and dispersion agent

InactiveCN109042634AGood dispersionHigh suspension rateBiocideAnimal repellantsFunctional monomerPhosphate
The invention discloses a preparation method and application of an efficient agricultural water suspension and dispersion agent. The efficient agricultural water suspension and dispersion agent is prepared from the following components in percentage by weight: 90 to 10 weight percent of a substance A and 10 to 90 weight percent of a substance B, wherein the substance A is a water-soluble macromolecular polycarboxylate compounded with a comb type structure, which is formed by copolymerizing saturated carboxylic acid, unsaturated carboxylic acid and hydroxyl-containing fatty alcohol or phenol polyoxyethylene polypropylene oxide ether ester compound and a third functional monomer under the action of an initiator through solution copolymerization and alkali neutralization; the substance B comprises modified aryl phenol polyoxyethylene ether sulfonate, modified aryl phenol polyoxyethylene ether phosphate or modified aryl phenol polyoxyethylene ether carboxylate. The dispersant disclosed bythe invention is applicable to high-content, especially ether urea type and triazole type insecticidal bactericide pesticide water suspension agents, and provides good wetting and dispersion effects.The preparation method has the advantages of low production cost, practical and feasible technology, environment protection and no pollution and good application performance.
Owner:南京拓际生物科技有限公司

Ammonia distillation and dephenolization coupling device for semi-coke production wastewater and process thereof

InactiveCN112299513AImprove the heating effectAccelerate evaporationWater contaminantsSteam generation using pressureCombustion chamberThermodynamics
The invention relates to the technical field of semi-coke wastewater treatment, in particular to an ammonia distillation and dephenolization coupling device for semi-coke production wastewater. The device comprises a heating mechanism, a spray tower is erected above the heating mechanism, a heat exchange mechanism is installed on the side wall of the spray tower, a preheating mechanism is arrangedon the side, away from the heat exchange mechanism, of the spray tower, and the preheating mechanism is connected with the heating mechanism; and an air conveying mechanism is mounted on the heatingmechanism. Through the arranged heating mechanism, water vapor containing phenol can be combusted, then the combusted phenol is decomposed into water and carbon dioxide, formed water vapor performs heat exchange in the heat exchange mechanism, the heating mechanism can further heat phenol-containing liquid entering a heating chamber, the phenol-containing liquid is vaporized and then conveyed intoa combustion chamber through the air conveying mechanism to be combusted, water in a water guide pipe can be preheated through the arranged preheating mechanism, and a large amount of water can be saved.
Owner:INNER MONGOLIA LANHUOYAN TECH & ENVIRONMENTAL PROTECTION CO LTD

Colored resin composition, colored film, decorative substrate and touch panel

A colored resin composition is disclosed including a polyimide resin having a specified structure to achieve remarkable heat resistance and enabling the formation of a colored film which is excellent in reliability because a coloring material is highly dispersed and stabilized therein. A colored resin composition is disclosed including (A) an alkali-soluble polyimide resin having a structural unit containing a phenolic hydroxyl group, a sulfonic acid group or a thiol group, (B) a coloring material, (C) a polymeric dispersant, and (D) an organic solvent. A patterned colored layer obtained from the composition of the present invention is useful for a decorative substrate, a touch panel, an organic EL display device and the like.
Owner:TORAY IND INC

Synthetic method of methylene ether urushiol hydroxamic acid derivatives with (histone deacetylase) HDAC inhibitory activity

ActiveCN110256398AWide range of sourcesOrganic chemistryAntineoplastic agentsSide chainHydroxamic acid
The invention relates to a synthetic method of methylene ether urushiol hydroxamic acid derivatives with (histone deacetylase) HDAC inhibitory activity. Unsaturated urushiol is taken as a raw material, and oxidative polymerization of the urushiol is blocked through an etherification reaction; hydroxamic acid groups are introduced to tail parts of side chains of the urushiol thorugh a Diels-Alder reaction, a hydrolysis reactions, a hydroxylation reaction and the like; and in addition, different pharmacological groups such as nitro groups, hydroxyl groups and the like are introduced into benzene rings or alkyl chains, so that three methylene ether urushiol hydroxamic acid derivatives are synthesized. The three compounds can be well combined with active pockets of HDAC, can form stable hydrogen bonds with residual groups of the HDAC for interaction, and can be stably chelated with Zn<2+> at the bottom of the active pockets, so that good HDAC inhibitory activity is achieved. The median inhibitory concentrations (IC50) of the three compounds on HDAC 2 and HDAC 8 are equivalent to the IC50 value of an HDAC inhibitor SAHA approved by the Food and Drug Administration (FDA). The three compounds can be applied to clinical antitumor drugs and have extremely high additional values, and the synthetic method can be a novel technology for clinically developing novel phenol-based HDAC inhibitors.
Owner:INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY

Preparation method of aspergillus niger compound killing agent in municipal waste transfer station

InactiveCN113383800AReduce in quantityQuick snapBiocideFungicidesMonoglycerideFatty acid glycerol esters
The invention provides a preparation method of an aspergillus niger compound killing agent in a municipal waste transfer station, wherein the preparation method comprises clove essential oil, artemisia apiacea essential oil, tea tree essential oil, clove hydrolat, artemisia apiacea hydrolat, tea tree hydrolat, a lotus leaf extract, fatty acid monoglyceride, 1-hexadecyl-3-methylimidazolium chloride, 1-ethyl-3-methylimidazolium chloride and borneol. The plant essential oil contained in the aspergillus niger compound killing agent in the municipal waste transfer station contains various terpenoids, aldehydes, phenols and other natural organic small molecule compounds, has extremely strong bactericidal activity, has killing and long-term inhibition effects on aspergillus niger in the municipal waste transfer station, and reduces the number of bacteria; and meanwhile, due to the special aromatic odor of the plant essential oil, malodorous gas molecules released by the mould can be efficiently, rapidly and safely captured, adsorbed and controlled, and the malodorous odor and peculiar smell of the air can be well removed.
Owner:HONGHU LANTIAN ANHUAN ENERGY SAVING EQUIP

Fluorescein derivative and synthetic method thereof

PendingCN114729352ASimple structureOrganic chemistryHydrolasesOxidative enzymeDehalogenase
The present disclosure relates to fluorescein derivatives and methods of synthesis of fluorescein derivatives. A method of synthesizing a fluorescein derivative includes performing a first reaction by using a toxic phenol derivative as a substrate, and reacting the toxic phenol derivative in a buffer solution by using a thermostable dehalogenase, a set of free radical scavenging enzymes, a set of polyphenol oxidase and an FADH2 generating system to obtain benzoquinone. The FADH2 generation system is capable of generating FADH2, which is a substrate for a thermostable dehalogenase. Furthermore, a second reaction is carried out between the derived benzoquinone and D-cysteine to obtain a fluorescein derivative capable of emitting light at a wavelength of 600-700 nm. Therefore, the fluorescein derivative can be used in various fields of medical research, drug research, other detection technologies and the like.
Owner:VIDYASIRIMEDHI INST OF SCI & TECH
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