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149 results about "Anthranil" patented technology

Anthranil (2,1-benzisoxazole) is an organic compound with a molecular formula C₇H₅NO, which features a fused benzene-isoxazole bicyclic ring structure. It is an isomer of the more common compounds benzoxazole and benzisoxazole, with the oxygen atom being located in the 3-position. This arrangement disrupts the aromaticity of the molecules by cross-conjugation, making it by far the least stable of the 3 structural isomers.

Anthraquinone functional cellulose membrane and preparation method thereof

The invention belongs to the technical field of crossing of chemical engineering, materials engineering and environmental engineering, particularly relates to an improvement technology of cellulose membrane materials and a chemical grafting and fixing technology for treating anthraquinones compound carriers of wastewater containing nitrogen, and particularly relates to a method for preparing an anthraquinone functional cellulose membrane by fixing an anthraquinone compound on microcrystalline cellulose by chemical grafting. According to the method, the microcrystalline cellulose is used as a raw material; firstly, ionic liquid is used as a solvent for dissolving the microcrystalline cellulose; thionyl chloride modified cellulose is used for preparing cellulose chloride and then the cellulose chloride is reacted with amino anthraquinone in dimethylformamide to prepare an anthraquinone functional cellulose membrane material; the substitution degree of the prepared cellulose chloride can reach 1.89 and the anthraquinone grafting rate of the anthraquinone functional cellulose membrane reaches 82%; the anthraquinone functional cellulose is prepared by the two-step reaction; the content of anthraquinonyl is high and the grafting rate is high; the fixing effect is stable; finally, the anthraquinone functional cellulose is changed into the membrane by a phase transferring method; the membrane material can be used for accelerating and strengthening the biological degradation process in the treatment of the wastewater containing the nitrogen.
Owner:HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY

Preparation method of porous inorganic filling materials-fixed quinone compound

The invention discloses a preparation method of a porous inorganic filling materials-fixed quinone compound, belonging to the technical field of water treatment in environmental engineering. The method comprises the following steps of: selecting porous inorganic filling materials such as ceramsites, volcanics and the like; plating gamma-aluminum oxide on the surface of the materials; aminating, so that the surfaces of the porous inorganic filling materials contain a certain quantity of primary amidogen; putting the aminated materials into hydrochloric solution to have reaction for protecting the primary amidogen; and putting the reacted porous inorganic filling materials into sodium hydroxide solution, adding sulfonyl chloride group-containing anthraquinone compound which is dissolved in dichloromethane, and reacting for 6-10h under the room temperature to fix the water-soluble quinone compound. The quinone compound-containing macroporous polymer is applied to an anaerobic reactor to be capable of improving the biotransformation speed of an organic matter which is hardly degraded. The method covalently fixes the quinone compound on the macroporous polymer of a biologic carrier, so that the redox medium is easily contacted with the microbe, thereby overcoming the problem of the secondary pollution since the water-soluble quinone compound flows out with the water.
Owner:DALIAN UNIV OF TECH

Preparation method of porous inorganic filling materials-fixed quinone compound

The invention discloses a preparation method of a porous inorganic filling materials-fixed quinone compound, belonging to the technical field of water treatment in environmental engineering. The method comprises the following steps of: selecting porous inorganic filling materials such as ceramsites, volcanics and the like; plating gamma-aluminum oxide on the surface of the materials; aminating, so that the surfaces of the porous inorganic filling materials contain a certain quantity of primary amidogen; putting the aminated materials into hydrochloric solution to have reaction for protecting the primary amidogen; and putting the reacted porous inorganic filling materials into sodium hydroxide solution, adding sulfonyl chloride group-containing anthraquinone compound which is dissolved in dichloromethane, and reacting for 6-10h under the room temperature to fix the water-soluble quinone compound. The quinone compound-containing macroporous polymer is applied to an anaerobic reactor to be capable of improving the biotransformation speed of an organic matter which is hardly degraded. The method covalently fixes the quinone compound on the macroporous polymer of a biologic carrier, sothat the redox medium is easily contacted with the microbe, thereby overcoming the problem of the secondary pollution since the water-soluble quinone compound flows out with the water.
Owner:DALIAN UNIV OF TECH

Catalyst, preparation method of catalyst and application of catalyst for catalyzing regeneration of effective anthraquinone from anthraquinone degradation product

The present disclosure relates to a catalyst. The catalyst comprises a carrier and an active component supported on the carrier, and the active component comprises 0.00001-30 wt% of an alkali metal element, 0.0001-60 wt% of an alkaline-earth metal element and 0.00001-30 wt% of a fourth periodic transition-metal element. The present invention also provides a preparation method of the catalyst, an application of the catalyst for catalyzing regeneration of effective anthraquinone from an anthraquinone degradation product, a regeneration method of a circulating working fluid in the process of producing hydrogen peroxide by an anthraquinone method and a method for producing the hydrogen peroxide. The catalyst provided by the present invention effectively improves the regeneration effect of thecatalyst on the anthraquinone degradation product, significantly reduces accumulation of the anthraquinone degradation product in the working fluid, and improves the content of the effective anthraquinone in the working fluid, thereby facilitating reduction of the production costs and improvement of the production efficiency.
Owner:ZHEJIANG BALING HENGYI CAPROLACTAM

Supported nickel catalyst for production of hydrogen peroxide through anthraquinone hydrogenation method, and preparation method thereof

The invention discloses a preparation method of a supported nickel catalyst. The method comprises the following steps: making a mixed solution containing soluble nickel salt and aluminium nitrate or a mixed solution containing soluble nickel salt, magnesium nitrate, and aluminium nitrate react with a precipitant so as to obtain a green precipitate, washing the precipitate with distilled water, then carrying out a supercritical drying treatment or an azeotropic distillation drying treatment so as to obtain a precursor of the supported nickel catalyst; calcining the precursor for 2 to 5 hours in the atmosphere of N2 and at a temperature of 200 to 600 DEG C; and then switching to an atmosphere of H2 to carry out reduction reactions for 2 to 4 hours at a temperature of 300 to 550 DEG C so as to obtain the supported high active nickel catalyst. The supported nickel catalyst has a specific surface area of 250 to 450 m<2> / g, an average pore diameter of 9 to 30 nm, and a pore volume of 1.0 to 1.9 cm<3> / g. The surface area of the active metal nickel loaded on the catalyst is 40 to 70 m<2> / g. The supported nickel catalyst is applied to the hydrogen peroxide production through an anthraquinone hydrogenation method.
Owner:HIGH TECH RES INST NANJING UNIV LIANYUNGANG +1

Colorimetric fluorescence probe for high selectivity multiple biological thiol and preparation method thereof

The invention relates to a colorimetric fluorescence probe for high selectivity multiple biological thiol and a preparation method thereof, particularly to the colorimetric fluorescence probe which uses selenazole ring as an identification receptor, takes an anthraquinone derivant as an information report functional group, can high selectively distinguish and identify cysteine, homocysteine and glutathione and the preparation method thereof, belonging to the technical field of life science. The colorimetric fluorescence probe has the following structure formula as shown in the specification. The colorimetric fluorescence probe is prepared by grinding and reacting a diamine compound corresponding to the colorimetric fluorescence probe for the high selectivity multiple biological thiol and selenium dioxide in an agate mortar for 15-90 min at the grinding temperature of 10-35 DEG C, the mole ratio of the corresponding diamine compound to the selenium dioxide is 1:1-5, and the reaction formula is shown in the specification. The invention can directly distinguish and identify the cysteine, the homocysteine and the glutathione by eyes, and carry out imaging analysis on biological thiol in living cells. The invention has the advantages of simple method, environmental protection and industrial production.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
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