139 results about "Anthraquinone" patented technology

The invention relates to a methacrylic acid-styrene-hydroxyethyl acrylate copolymer dispersant and a preparation method and application thereof. The methacrylic acid-styrene-hydroxyethyl acrylate copolymer dispersant is synthesized with styrene, methacrylic acid and hydroxyethyl acrylate as monomers, and cerous chloride-2-isopropyl-thioxanthone complex, cerous chloride-anthraquinone complex or cerous chloride-diphenyl ketone complex as a photoinitiator through photo initiated radical copolymerization. The dispersant provided by the invention can have a good dispersion effect on inorganic powder and pesticide preparations, and can be compounded with a wetter to take good dispersion effect on pesticide water-borne preparations.

The invention discloses alkaline Bacilluspseudofirmus MC02 CGMCC (China General Microbiological Culture Collection Center): 4772 and application of the alkaline Bacilluspseudofirmus MC02 in reduction of iron oxides and humus. The Bacilluspseudofirmus MC02 is obtained by separating and purifying an alkaline sludge microbial fuel cell anode biofilm which well operates; and under the alkaline condition, the Bacilluspseudofirmus MC02 has strong Fe(III) and AQDS (anthraquinone-2,6-disulfonic acid) reducing capacity, broad electron utilization spectrum and wide application prospect.

The invention discloses a palladium-based catalyst. The palladium-based catalyst is characterized in that composite oxide prepared by zirconium dioxide and activated aluminum oxide and modified by lithium is used as a supporter, palladium is used as a main active component, one or more of magnesium, calcium, lanthanum, cerium, ferrum, cobalt, nickel and zinc is selected as an assistant active component, the mass ratio of zirconium dioxide ZrO2 and activated aluminum oxide AlO2O3 is 1: (1-40), the mass content of lithium in the supporter is 0.1-20%, the mass content of palladium in the catalyst is 0.02-10%, and the mass content of the assistant active component in the catalyst is 0-8%. Compared with the prior art, the catalyst is obviously improved in the aspects of activity, wearing resistance and anti-hydration performance.

The invention relates to a method for quantitatively detecting polytypes of chrysophanol and emodin in rhubarb and a compound preparation of rhubarb. The method is characterized by integrating methyl extraction and acid hydrolysis into one step; eliminating steps of extraction by poisonous solvents such as trichloromethane and the like, drying by vaporization and the like; and reducing the pre-processing time from original 10 to 15 hours to 0.5 hour, along with high efficiency, low cost and little pollution. By studying components and ratios of the flowing phase, acetonitrile-methyl alcohol-0.1 percent phosphoric acid (the mixing ratio is n 40-45:20-27:38-30) replaces methyl alcohol-0.1 percent phosphoric acid (the mixing ratio is 85:15) as the flowing phase, the problem of difficultly in identifying coating impurity peaks of the emodin is solved and the correctness of the detection result is ensured. The chrysophanol and the emodin are taken as detection indexes, the same flowing phase is used, and the chrysophanol and the emodin in total, ionization and combined anthraqunione in the preparation are detected at the same. The method has the advantages of combining the detection indexes and the efficacy of the preparation for the first time, improving the scientificity and rationality of the quality control indexes, and being suitably used for various preparations containing the rhubarb, along with simpleness, quickness and accuracy.

A non-mental catalytic system for hydrocarbons catalytic selective oxidation, the bi-component non-metal catalytic system for hydrocarbons selective oxidation comprises organic quinones compounds and N-hydroxy-phthalimide . Air or oxygen gas is the source of oxygen, generating alcohols, aldehydes, ketones, acids and alkyl hydrogen peroxide oxygen-containing compounds. The said quinones compounds includes organic compound benzene quinones, naphthalene quinones, anthracene quinones and their substitutive derivatives.

Aminoside tetracyclic anthraquinones represented by formula (I) and (II). Peptides are introduced to connect tetracyclic anthraquinones and fatty acid to enable selective absorption and release of the anticancer agents. In addition, aminosaccharide and tetracyclic moieties are introduced into the branched chain to improve water-solubility. The compounds of formula (I) and (II) are pharmaceutically active components useful for treating diseases that are cured by aminoside tetracyclic anthraquinones, including cancer.

The invention discloses a highly-dispersed supported slurry bed hydrogenation bead catalyst and a preparation method thereof, and belongs to the technical field of chemical industry. The catalyst is adopts one or a mixture of two of noble metals Pd and Pt as a main active component, the main active component is loaded on an oxide-molecular sieve composite carrier having a core-shell structure, thecore is an inert micro-spherical oxide, and the shell is a mixed carrier formed by compounding an oxide and molecular sieve. The hydrogenation catalyst disclosed in the makes the thickness of the active component on the very thin shell controllable, the shell has a microporous-mesoporous hierarchical porous structure, the micro-porous structure increases the dispersion degree of the active component, and the meso-porous structure provides diffusion channels for reactants and products. The catalyst disclosed in the invention has significantly improved selectivity and activity in anthraquinonehydrogenation for preparing hydrogen peroxide; and compared with industrial catalysts, the catalyst in the invention allows the space time yield of hydrogen peroxide to reach 7-15 kg H2O2 (100%) gPd<-1>.d<-1> and be far higher than industrial data, and has high wear resistance and high stability.

The present invention relates to a preparation process of disperse red dyes and its product. In particular, it relates to a synthesis process of benzodifuran-based disperse red dyes by adopting phase transfer catalysis carbonyl addition process and its prepared product. Said product has high molar extinction coefficient, strong color fastness of light and washing, strong wet-fastness and brilliance colored light, etc.

The invention discloses a method for preparing solvent blue 35. The method comprises the following steps: adding ethanol, anhydrous sodium sulfate, 1,4-dihydroxyanthraquinone, 1,4-dihydroxyanthraquinone leuco, acetic acid and n-butylamine into a reactor, closing the reactor, heating to a refluxing temperature, reacting under a pressure of 0.08Mpa or less for 1-4h, distilling off an ethanol and n-butylamine mixed solvent, adding alkaline water to realize separation, filtering, washing, drying, and discharging. In the invention, acetic acid is used as a catalyst, anhydrous sodium sulfate is used as a water absorbing agent, and 1,4-dihydroxyanthraquinone is mixed with the 1,4-dihydroxyanthraquinone leuco in reasonable proportion, so the reaction speed is improved, and the yield is improved; and ethanol is adopted as a solvent to reduce the generation of tar, and a recovered ethanol and n-butylamine mixed solution can be directly used after dehydration in order to reduce the generation of wastewater.

A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) comprising two alternate essential steps of: (a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein the working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of the at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; and further comprising step (c): extracting the hydrogen peroxide formed in the oxidation step in an extraction unit, wherein the hydrogenation, oxidation and extraction steps are performed in an reactor system which is designed as a compact modular system of a hydrogenation, an oxidation and an extraction unit, and wherein the reactor system is configured to operate without a reversion (regeneration) unit for continuous reversion of the working solution as a small to medium scale AO-process with a production capacity of hydrogen peroxide of up to 20 kilo tons per year, wherein the working solution and/or the catalyst are replaced and/or treated for regeneration or reactivation only intermittently or periodically, e.g., with a low frequency.

The invention discloses a copper plating method for aluminum pieces. The copper plating method for the aluminum pieces includes the steps that (1) aluminum pieces obtained after oil removing operation is activated with acid to prepare activated aluminum pieces; (2) the activated aluminum pieces are arranged in zinc soaking liquid to be soaked so as to prepare zinc soaked aluminum pieces; and (3) the zinc soaked aluminum pieces are arranged in copper plating liquid for copper plating so as to prepare the copper plated aluminum pieces, wherein the copper plating liquid contains copper salt, anthraquinone, catechol, potassium sulphate, malic acid, 2,2-dipyridyl, tetraacetic acid diaminoethane, glyoxal, sodium sulfite and water. By means of the method, a copper plating layer obtained through copper plating is high in adhesive force, large in hardness, smooth and free of particles.

The invention discloses a high-performance anthraquinone cobalt blue mixed reactive printing dye, including anthraquinone type dyes as shown in a formula I and a formula II and a scattered solubiliser as shown in a formula III. The reactive printing dye can be applied for printing on cellulosic fibers of cotton and hemp or protein fibers of wool and silk, presents brilliant red light blue, has fixation rate, washing and sweat resistance wet-processing fastness and sunlight fastness, also has very high solubility and dissolving speed, can be used without water dissolving, can be prepared into a dye printing slurry by the powder, and has no colored spot phenomenon.

The present invention provides a method for preparing antrocin of pharmaceutically acceptable salts thereof via a series of gold-catalyzed cyclization to construct the (6-6-5) tricyclic core frame. The present invention also provides a use of a composition in preparing drugs for suppressing growth of non-small cell lung cancer cells, wherein the composition comprises an effective amount of antrocin or pharmaceutically acceptable salts thereof and a pharmaceutically acceptable carrier.

The invention discloses a chitosan modified intelligent tissue engineering scaffold material and a preparation method thereof. The invention belongs to the field of the functional macromolecular material and particularly relates to the intelligent tissue engineering scaffold material and the preparation method thereof. The temperature response range of the scaffold material is 31-33 DEG C. the preparation method of the scaffold material comprises the following steps: adopting the ultraviolet curing method to dissolve temperature sensitive substances N-isopropylacrylamide (NIPAAm) and acrylic acid (AAc) in dimethyl sulfoxide (DMSO) according to a certain ratio, using anthraquinone-2-sulfonic acid (AQS) as a photosensitizer to graft on the surface of a polystyrene cell culture plate, and then using N-hydroxysulfosuccinimide sodium salt (sulfo-NHS) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC.HCl) as an activator and a condensing agent to fix chitosan (Cs) with good biocompatibility on the surface of the polystyrene cell culture plate and prepare the chitosan modified intelligent tissue engineering scaffold material. The preparation method disclosed by the invention has a simple process, high maneuverability, low investment cost, a wide application range and safety and is easy to be popularized and used in industrial production.

The invention discloses nano-scale mesoporous silicon dioxide-methotrexate-mitoxantrone nanoparticles. Its preparation method is disclosed, that is, amino functionalized mesoporous silica nanoparticles (MSNN) are prepared by modifying amino groups on the surface of mesoporous silica nanoparticles, and then the amino groups of MSNN are covalently combined with MTX to form methotrexate ‑Amino-modified mesoporous silica nanoparticles (MSNN‑MTX), and finally load mitoxantrone into the nanopores of MSNN‑MTX to obtain nanoscale mesoporous silica‑methotrexate/mitoxantrone Quinone nanoparticles (MSNN‑MTX/MIT). Its antitumor effect is disclosed. Compared with the combined application of conventional MTX and MIT, MSNN‑MTX/MIT significantly prolongs the survival time of S180 mice, improves the curative effect and reduces systemic toxicity. Therefore, the present invention discloses the application of MSNN-MTX/MIT in the preparation of antitumor drugs combined with MTX and MIT. The MSNN-MTX/MIT of the present invention has a good clinical application prospect.

Disclosed is a liquid crystal display (LCD) device that may include a plurality of pixels; a liquid crystal layer disposed over the plurality of pixels; a red color filter layer disposed over the liquid crystal layer, the red color filter layer including anthraquinone pigment.

The invention relates to a method for synthesizing 1-chloroanthraquinone through direct chlorination of chlorine gas, which uses 1-chloroanthraquinone as raw materials and comprises the steps of chlorination and separation. The invention is characterized in that the chlorination is carried out in a reverse flow type in a reaction tower with a built-in distributor, i.e. fused materials are added into the tower from the top of the tower, chlorination reagents are introduced from the bottom of the tower, two phases of the reverse flow are mutually and uniformly dispersed under the effect of the distributor, and the chlorination process is completed at 150 to 170 DEG C. The materials are prepared from adding fluxing agents accounting for 8 to 12 mass percent of the raw materials and composite triggering agents accounting for 0.1 to 0.3 mass percent of the raw materials into the raw materials of 1-chloroanthraquinone, wherein the composite triggering agents are prepared from free radical triggering agents and organic phosphine compounds through being mixed according to a mass ratio of 1/1. In the method, the free radical chloro reaction is stably carried out at a temperature lower than 170 DEG C under the effect of the fluxing agents and the composite triggering agents, the content of coarse products is about 90 percent, and high-purity 1-chloroanthraquinone with the content higher than or equal to 99 percent can be obtained through two-step purification of sulfogroup conversation and recrystallization.

The process of preparing chemical pulp with corn stalk peel includes the following steps: cutting dry corn stalk peel into 25-30 mm long material sections; and digesting the material sections in a digester with sulfite, alkali solution and enthraquinone at 120-180 deg.c for 0-85 min. The digestion liquid has total chemical amount of 7-20 % accounting in Na2O, sulfurous acid degree 0.2-1.0, enthraquinone amount 0.03-0.10 % and liquid ratio of 4-6. The produced AS-AQ and AS-AQ pulp have physical strength reaching relevant standard and quality higher than that of broad-leaved wood pulp. The present invention has short digestion period and high yield, and the effluent may be concentrated and further produced into adhesive, dispersant and cement water reducing agent.

The invention relates to a PEG-modified two-dimensional nanosheet photothermal conversion material. The material is formed through coordination self-assembling of tetrahydroxyanthraquinone and bivalent copper ions and modification with PEG, and the diameter of the above nanosheet is 500-800 nm, wherein a molar ratio of the tetrahydroxyanthraquinone to the bivalent copper ions is (1.5-2):1. The two-dimensional nanosheet has a high light absorption coefficient in the near-infrared region, high photothermal conversion ability under the irradiation of near-infrared laser, expands existing photothermal conversion materials, and can be used in the photothermal therapy of tumors.

The invention provides a resin composition for laminated material comprising at least 10 wt% of vinyl compound having chemical formula (1), the pre-impregnated product and metal cover laminated material employing the resin.

The invention discloses a detection method of the chlorine content in 2-ethylanthraquinone. The detection method comprises the following steps of 1) preparing an organic chlorine standard solution; 2)preparing a sample, and weighing about 4 micrograms of sample in a sample weighing cup with an analysis scale; 3) putting the sample on a micro-coulometry sulfur-chlorine determinator for detection,wherein integration resistance of a data workstation of the micro-coulometry sulfur-chlorine determinator is equal to 1 K, and the amplification factor is equal to 2000; 4) calculating an average conversion rate; and 5) sending the sample into the micro-coulometry titrator for determination by using a solid sample feeding boat. In the detection method, as the feeding quantity required for detection is small and is less than 4 micrograms, the detection cost can be reduced, and the detection speed is increased. The practical application discovers that the detection method is short in detection time, good in data stability and simpler in operation compared with the prior art and can lower the labor intensity of detecting personnel.

The invention discloses a grit chamber blow-down pipe material and a preparation method thereof. The grit chamber blow-down pipe material consists of the following components in parts by weight: ultrasonic atomized condensed water, sodium alcohol ether sulphate (AES), bis(2-ethylhexyl) sodium sulphosuccinate, disodium sulfosuccinate of lauryl alcohol polyoxyethylene ether, N,N'-bis(p-methyl phenyl sulfonyl)ethylene diamine, 4-[[4-(Acetylmethylamino)-2-sulfophenyl]amino]-1-amino-9,10-dihydro-9,10-dioxo-2-anthracene sulfonic acid disodium salt, rutherfordium nanoparticles, 1-amino-4-bromoanthraquinone, delsene and the like. The grit chamber blow-down pipe material has the advantages of being simple in manufacturing equipment requirement, low in operation cost, stable in chemical property, simple to operate in a manufacturing process, wide in application, simple and efficient in manufacturing process and low in working intensity of operators.

The invention provides a temperature-sensitive discoloring pressure-sensitive adhesive. The formula comprises the following components: 50-70 parts by weight of 2-ethylhexyl acrylate, 10-20 parts by weight of a polyoxyethylene-polyoxybutylene-polyoxyethylene block copolymer, 5-10 parts by weight of an allyl alcohol complex, 1-10 parts by weight of fumed silica, 1-10 parts of 1-hydroxycyclohexyl phenyl ketone, 1-10 parts of dodecanethiol, 10-20 parts of N, N'-methylene bisacrylamide, 1-10 parts of N, N, N', N'-tetramethylethylenediamine, 1-10 parts of ethylene glycol dimethacrylate, 2-8 parts of calcium nitrate, 1-5 parts by weight of 2-ethylanthraquinone, and 2-10 parts by weight of a compound I. According to the temperature-sensitive discoloring adhesive tape, the discoloring temperatureranges from 60 DEG C to 100 DEG C, discoloring does not occur at the normal temperature, and discoloring can occur only after temperature treatment at the temperature higher than 55 DEG C.

The invention discloses a key material of a modified straw flocculant and a technical method for same. The key material includes, by weight part ratio: ozonized ultrapure water, straw powder, phenyl succinic acid, nonyl phenol sulfosuccinic monoester disodium salt, N-(2-methphenyl)trichloroacetamide, 1-amino-2-bromo-4-[(4-methphenyl)amino]-9,10-anthracenedione, 1-amino-4-bromoanthraquinone, 3,5-dimethoxybromobenzene, berkelium nano particles, 1-amino-2-bromo-4-hydroxyanthraquinone, 2-[(4-chloro-2-nitrophenyl)azo]-N-(2,3-dihydro-2-oxy-1H-benzoimidazole-5-yl)-3-oxo-butanamide, and 2-[[4-cyclohexylamino-9,10-dihydro-9,10-dioxy-1-anthryl]amino]-5-ethoxybenzenesulfonic sodium salt. The key material herein achieves synchronization of an organic flocculant during production and avoids complex steps of producing and purifying a bio-flocculant and compounding the bio-flocculant with the organic flocculant to complete the production of the compound flocculant, thereby reducing synthesize process and reducing cost.

The invention belongs to a method for preparing pigment red 177 in an ionic liquid. The method comprises the steps: mixing 4, 4'-diamino-1, 1'-dianthraquinone-3, 3'-disulfonic acid (DAS) in the ionic liquid, heating at high temperature, and carrying out desulfonation reaction; and after the reaction is ended, adding a methyl alcohol solvent into the reaction mixture to separate out the pigment red 177, filtering and drying to obtain the pigment red 177. The problem that a great deal of waste acid is discharged in the existing preparation technology of the pigment red 177 is solved; the process for preparing the pigment red 177 through carrying out desulfonation reaction on the DAS in about 70-80% of slfuric acid medium is not needed, no waste dilute sulphuric acid is discharged, and the yield of the pigment red 177 is over 95%. According to the invention, the pigment red 177 is prepared by using a technology for carrying out desulfonation reaction in the ionic liquid, so that the process is simple, the discharged waste acid is greatly reduced, and the yield is relatively high.