30results about How to "Substance less" patented technology

The invention provides a rustproof lubricating agent. Based on the total weight of the rustproof lubricating agent, the rustproof lubricating agent comprises the following components: (a) 5%-45% of base oil, wherein the base oil is one or more selected from polyaleneglycol, fatty acid glyceride and propanetriol; (b) 0.1%-15% of corrosion inhibitor, wherein the corrosion inhibitor can be one or more selected from organic polycarboxylic acid, organic polycarboxylate and alkylamine; (c) 0.05%-10% of preservative, wherein the preservative can be one or more selected from benzoic acid type preservative and isothiazolizone type preservative; and (d) 30%-90% of water.

The invention discloses a high-salt high-alkali medium-low-level radioactive liquid waste cement solidified body which is composed by mixing the following components: high-salt high-alkali medium-low-level radioactive liquid waste and, solidification material, water glass and cellulose ether, wherein the high-salt high-alkali medium-low-level radioactive liquid waste to the solidification material is 0.55-0.75: 1 in mass proportion; the modulus of the water glass is 2.5-3.5 based on Na2O in the water glass and the mass of the solidification material is 1-3% of the mass of the water glass ; the mass of the solidification material is 0.05-0.5% of the mass of the cellulose ether; the component mass percent of the solidification material is as follows: 20-40% of low-heat Portland cement, 15-50% of slag powder, 15-30% of coal ash, 5-15% of zeolite and 5-15% of attapulgite; and the cement solidification body with various properties meeting the requirements is obtained by carrying out normal-temperature maintenance on the mixed slurry which obtained by mixing and stirring. The high-salt high-alkali medium-low-level radioactive liquid waste cement solidified body is suitable for the solidification of the medium-low-level radioactive liquid waste, which has the total salt concentration being 100-400g / L, the pH value being larger than 13 and the nuclide being 90Sr or / and 137 Cs.

The invention relates to a medicinal composition of cefoperazone sodium and tazobactam sodium. The medicinal composition comprises the following components in part by weight: 4 to 8 parts of cefoperazone sodium and 1 part of tazobactam sodium, wherein the tazobactam sodium is measured by a powder X-ray diffraction measuring method, and characteristic diffraction peaks are shown at the positions of 6.9 degrees, 10.5 degrees, 11.4 degrees, 16.6 degrees, 19.2 degrees, 22.7 degrees, 27.0 degrees, 29.7 degrees and 33.5 degrees in an X-ray powder diffraction map expressed by a diffraction angle of between 2 theta+ / -0.2 degree. The medicinal composition has the advantages of high stability, low relevant substance content, controllable quality and the like, and the administration safety of patients is improved. The invention also relates to a method for preparing the tazobactam sodium with the technical characteristics of the characteristic diffraction peaks.

Metallofullerene derivatives, a preparing method thereof and an energy storage and conversion method of the derivatives are disclosed. The derivatives are obtained by modifying the surface of metallofullerene with derivatives of a nitroxide free radical micromolecule that is 2,2,6,6-tetramethylpiperidinooxy through an addition reaction. The metallofullerene derivatives are radiated by adopting ultraviolet light, and then participate catalytic oxidation reactions, the energy storage rate and energy conversion rate are high, storage of ultraviolet light energy and conversion from the light energy to chemical energy are achieved, and the energy storage and conversion method and process are simple. An electron transfer process of the metallofullerene derivatives radiated by the ultraviolet light can be analyzed by a conventional test instrument, the electron transfer situation can be reflected by changes of electron paramagnetic signals, and sensitivity is high. The time scale in the electron transfer process can be detected as an expansion.

The invention discloses an enhanced denitrification system and method for treating low C / N municipal sewage continuous flow. The enhanced denitrification system comprises a raw water tank, an enhanceddenitrification device and a sedimentation tank which are connected in sequence; the system further comprises a pre-reaction ammonia nitrogen online sensor, a pre-reaction nitrate nitrogen online sensor, a post-reaction ammonia nitrogen online sensor, a post-reaction nitrate nitrogen online sensor, a pH online sensor, a control system, a stirring device, an aerator, a gas flow meter, an air blower, an anaerobic ammonia oxidizing bacteria suspended filler, an overflow port, a dosing device and a dosing pump. According to the invention, coupling of three denitrification technologies of externalcarbon source denitrification, internal carbon source denitrification and short-cut denitrification coupled anaerobic ammonia oxidation can be realized; the denitrification efficiency is greatly improved, and a certain reference can be provided for new construction of a low C / N urban sewage treatment plant and upgrading and reconstruction of an original sewage treatment plant taking AO / A2O as a main biological treatment process.

The invention relates to a method for synthesizing 6-methyl-dibenzothienophridine, comprising the following steps of: in mixed solvent of ethanol and water, taking 2,2-dithiosalicylic acid as shown in the formula (II) and pyridine derivative as shown in the formula (III) as raw materials; reacting for 24-60 hours at 80-200 DEG C and in 2-3 atmospheric pressures in the presence of sodium azide; and processing the reaction liquid after the reaction is finished to obtain the 6-methyl-dibenzothienophridine as shown in the formula (I), wherein the molar ratio of the 2,2-dithiosalicylic acid to the pyridine derivative is 1-10:1; the molar ration of pyridine derivative to the sodium azide is 1:1-5; and the volume ratio of ethanol to water in the mixed solvent is 1-5:2. The method has simple operation and little environmental pollution and reduces the production cost. The product synthesized by the method can be used for preparing nano devices.

The invention relates to a benzbromarone crystal form A applicable to the field of chemical pharmacy and a preparation method thereof. In an X-ray powder diffraction pattern represented by a 2theta angle, the error range of the 2theta angle is + / - 0.2. The benzbromarone crystal form A has the basic X-ray powder diffraction pattern. In the differential scanning calorimetry pattern, when the heating speed is 10 DEG C per minute, the benzbromarone crystal form A has a maximal endothermic peak, and the melting point value of the benzbromarone crystal form A is 152.23 DEG C. The method comprises the following steps: under the condition of 25 DEG C, taking 1.0g of benzbromarone crystal form A, and adding 10ml of trichloromethane, wherein the solid is completely dissolved, and the solution is clear; taking 1.25g of benzbromarone crystal form A, and adding 25ml of N,N-dimethylformamide, wherein the solid is slightly insoluble, and the solution is not clear; and crystallizing from a single solvent acetone to obtain the benzbromarone crystal form A. The crystal form has the advantages of high stability, simple preparation method, low cost, simple after-treatment, high product purity and fewer related substances.

The invention discloses a method for producing gamma-aminobutyric acid. The method is to crush the bacterium capable of expressing glutamic acid decarboxylase, immobilize it with sodium alginate to form immobilized glutamic acid decarboxylase, and make the immobilized glutamic acid decarboxylase and glutamic acid or glutamine The acid salt is subjected to an enzyme-catalyzed reaction in the reaction column to obtain γ-aminobutyric acid. The method of the invention utilizes biologically active enzymes, only needs to provide suitable buffer conditions, less substances in the conversion system, less by-products, no harmful substances, and is safe and reliable as raw materials for food and medicine. The entire technological process consumes less material and energy, generates less waste, and is conducive to environmental protection.

The invention relates to a preparation method of a molybdenum disulfide-based lubricating coating, which relates to the technical field of chemical composition application. It is to wash, dry and phosphate the workpiece to be coated; then use molybdenum disulfide as a lubricant, epoxy resin as a binder, banana water as a diluent, and ethylenediamine as a curing agent. The prepared molybdenum disulfide-based lubricating coating is coated on the surface of the workpiece; under normal temperature conditions, it is naturally dried for 20-30 minutes to form a molybdenum disulfide-based lubricating coating. Compared with the prior art, it has the advantages of simple and convenient production process, low production cost and good product quality.

The invention discloses a rose beverage with an effect of preventing capillary hemorrhage. The rose beverage comprises the following components: 0.1-0.3% of roses, 0.03-0.1% of Chinese roses, 0.01-0.1% of stevia rebaudian leaves, 0.01-0.02% of troxerutin, 0.02-0.05 % of vitamin C, 0.05-0.1% of herba agrimoniae, and the balance being water. The preparation method comprises the following steps: (1) crushing the roses, adding water to obtain a mixture I, putting the obtained mixture I into an airtight extraction tank, decompressing to 0.02-0.05MPa, and at a temperature of 60-80 DEG C, extracting for 20-25 minutes, cooling to room temperature, and filtering, so that filtrate I is obtained; (2) crushing the Chinese roses and stevia rebaudian leaves, adding the water so as to obtain a mixture II, putting the obtained mixture II into an open extraction tank, extracting for 20-25 minutes in boiling water, and filtering, so that filtrate II is obtained; (3) mixing the vitamin C, the troxerutin and the herba agrimoniae to obtain a mixture III, crushing the obtained mixture III, adding the water to obtain a mixture IV, boiling the obtained mixture IV into the open extraction tank for 40 minutes, and filtering, so that filtrate III is obtained; and (4) merging the filtrate I,II, and III, adding drinking water in proportion, uniformly stirring, sterilizing, and filling. The rose beverage disclosed by the invention has a health effect, and has the functions of wound healing, detumescence and detoxification; and the rose beverage has a good effect of preventing the capillary hemorrhage, and the vitamin C can promote the digestion and absorption on the beverage.

The invention relates to a method for preparing a hydrophilic PVC hollow fiber membrane, which comprises the following steps: S1, preparing a membrane casting solution, wherein mixing 8-15 wt% of polyvinyl chloride, 5-15 wt% of a hydrophilic pore-foaming agent, 5-10 wt% of a high-volatility solvent and 65-82 wt% of a conventional solvent at 25-80 DEG C, fully and uniformly stirring, defoaming, standing and cooling to room temperature; S2, carrying out solvent evaporation phase pre-splitting, wherein extruding the membrane casting solution obtained in the step S1 into a tubular liquid membranefilled with a core liquid through a spinning nozzle, and extruding the core liquid together through the spinning nozzle; S3, carrying out non-solvent induced phase inversion and curing at the same time, and immersing a liquid membrane formed in the step S2 in coagulating bath at a constant speed to be cured; S4, cleaning; and S5, rolling. the invention aims to provide the hydrophilic PVC hollow fiber membrane with an asymmetric structure, hydrophilicity, high strength, high porosity and stable structure and performance, and the preparation method of the hydrophilic PVC hollow fiber membrane.

The invention discloses a novel esomeprazole compound entity as well as a preparation method and a combined pharmaceutical preparation thereof. The novel esomeprazole compound entity is measured by adopting X-ray powder diffraction, the map sequentially has the following diffraction angles 2theta: 5.8 degrees, 10.0 degrees, 11.5 degrees, 12.6 degrees, 16.2 degrees, 17.0 degrees, 18.9 degrees, 20.9 degrees, 21.5 degrees, 22.2 degrees, 23.1 degrees, 25.8 degrees and 26.4 degrees, the error of each angle is + / -0.2 degrees, and the corresponding D values sequentially refer to 15.32, 8.887, 7.724, 7.062, 5.493, 5.234, 4.715, 4.288, 4.164, 4.031, 3.877, 3.473 and 3.395. The novel esomeprazole compound entity disclosed by the invention has the advantages of high purity, few impurities, high yield, high stability, few toxic and side effects and the like.

The invention discloses a weather-resistant environmentally-friendly water-based metal anticorrosive coating. The weather-resistant environmentally-friendly water-based metal anticorrosive coating comprises, by mass, 45 to 52 parts of a styrene-acrylic emulsion, 15 to 25 parts of an acrylic emulsion, 6 to 12 parts of silicone resin, 10 to 16 parts of polyurethane resin, 14 to 20 parts of a filler,1 to 3 parts of a dispersant, 2 to 5 parts of a thickener, 4 to 7 parts of a stabilizer, 2 to 5 parts of a drier, 0.5 to 3 parts of a filming aid and 80 to 100 parts of water. The weather-resistant environmentally-friendly water-based metal anticorrosive coating is water-based paint, is free of harmful odor and few substances, can recoat a used position, can be cleaned with clear water and soap,is not combined with dangerous and flammable solvents, is free of solvent remove after construction, can be fast dried and fast coat, has strong UV resistance, can be used in different environments and has good weather resistance.

A benzbromarone crystal form B applied in the field of chemical pharmacy and a preparation method thereof, the benzbromarone crystal form B, in the X-ray powder diffraction pattern represented by the 2θ angle, the error range of the 2θ angle ± 0.2; the described benzbromarone crystal form B has a basic X-ray powder diffraction spectrum in the X-ray powder diffraction spectrum represented by the 2θ angle; the described benzbromarone crystal form B is in In the differential scanning calorimetry chart, there is a maximum endothermic peak when the heating rate is 10°C per minute, the peak start point: 150.54°C, the peak value: 151.62°C, the peak end point: 153.82°C, the melting point of benzbromarone crystal form B: 151.66°C; at 25°C, take 1.0g of the benzbromarone crystal form B, add 10ml of chloroform, the solid is slightly insoluble, and the solution is not clear; and take 1.25g of the benzbromarone crystal form B, add N,N ‑Dimethylformamide 25ml, all solids were dissolved, and the solution was clear. The invention has good crystal form stability, simple preparation method, low cost, simple post-treatment, high purity of the prepared product and less related substances.

The invention provides a method for preparing a spherical material for removing formaldehyde gas molecules through catalysis and color development, which is characterized in that it comprises the following steps: combining an ethanol solution of phloroglucinol and a silica sol of a silica mesoporous material containing ammonia The ratio is poured into the sodium hydroxide solution, fully stirred and mixed to form a viscous paste, and then the paste is poured into a spherical mold, and after a period of time, it solidifies and forms a spherical shape. Among them, ammonia water is No. 1 catalyst, hydrogen Sodium oxide is the No. 2 catalyst. The invention has a spherical material with the function of removing indoor formaldehyde and is accompanied by a pink color indication function, which can effectively remove formaldehyde molecules, make up for the fatal defect that the physical adsorption material becomes a secondary release source after absorbing formaldehyde, and minimize the impact of indoor formaldehyde on family members, especially children. Harm caused by human body, so it has high creativity, novelty and practical application value.

The invention discloses a method for preparing safrole. The method comprises the following steps: by taking commercially available allyl alcohol and benzodioxole as raw materials and simultaneously taking benzodioxole as a solvent, controlling the temperature at 15-50 DEG C under the action of a catalyst Nafion-H; carrying out friedel-craft reaction for 6-10 hours at the agitating speed of 500-800r / min; and removing the benzodioxole solvent from a benzodioxole solution which is obtained from the prepared reaction solution in manners of filtering, washing and drying by reduced pressure distillation, and then carrying out column chromatography; finally obtaining the safrole. The method for preparing the safrole disclosed by the invention is simple in preparation process, low in production cost, and applicable to large-scale production. Furthermore, by adopting the method for preparing the safrole disclosed by the invention, the raw material benzodioxole for reaction can be recycled as the solvent, the catalyst Nafion-H also can be recycled, and the generated waste is less. Therefore, the method is friendly to environment.

The invention discloses a high-salt high-alkali medium-low-level radioactive liquid waste cement solidified body which is composed by mixing the following components: high-salt high-alkali medium-low-level radioactive liquid waste and, solidification material, water glass and cellulose ether, wherein the high-salt high-alkali medium-low-level radioactive liquid waste to the solidification material is 0.55-0.75: 1 in mass proportion; the modulus of the water glass is 2.5-3.5 based on Na2O in the water glass and the mass of the solidification material is 1-3% of the mass of the water glass ; the mass of the solidification material is 0.05-0.5% of the mass of the cellulose ether; the component mass percent of the solidification material is as follows: 20-40% of low-heat Portland cement, 15-50% of slag powder, 15-30% of coal ash, 5-15% of zeolite and 5-15% of attapulgite; and the cement solidification body with various properties meeting the requirements is obtained by carrying out normal-temperature maintenance on the mixed slurry which obtained by mixing and stirring. The high-salt high-alkali medium-low-level radioactive liquid waste cement solidified body is suitable for the solidification of the medium-low-level radioactive liquid waste, which has the total salt concentration being 100-400g / L, the pH value being larger than 13 and the nuclide being 90Sr or / and 137 Cs.

The invention relates to a waste gas treatment device combined with mesh filtration and plasma, which includes a casing, and the two ends of the casing are respectively provided with an air inlet and an air outlet, and the right side of the inlet is sequentially provided with a mesh filter a , plasma processing core body a, mesh filter device b and plasma processing core body b, an inspection port is provided between the plasma processing core body a and plasma processing core body b, and a moving stop is provided at the inspection port A filter plate is provided on the left side of the air outlet, and an exhaust fan is provided on the right side of the air outlet, and the exhaust fan is connected to a filter pool. The device of the present invention has simple structure, convenient installation and maintenance, and good waste gas treatment effect.

The invention provides a preparation process of dye-resistant powder paste. The preparation process of the dye-resistant powder paste comprises the following steps: preparing materials and working procedures; the material comprises the following raw materials: S1, a cementing material, a filler, an auxiliary agent, an auxiliary material and water; the coating is prepared from activated calcium carbonate, bentonite, polyvinyl alcohol, cellulose ether, sodium hexametaphosphate and water. S2, the doping amount of the cementing material accounts for 5%, the doping amount of the filler accounts for 95%, the doping amount of the auxiliary agent accounts for 9.3%, the doping amount of the auxiliary material accounts for 2.2%, and the doping amount of the water accounts for 55%. The preparation technology of the dye-resistant powder paste has the advantages of being excellent in performance, good in water resistance and batch scraping performance, stable in quality, low in cost and the like, particularly has the characteristics of being good and the like, and has the advantages of being firm in bonding strength and firm in adhesive force.

A benzbromarone crystal form A applied in the field of chemical pharmacy and a preparation method thereof, the benzbromarone crystal form A, in the X-ray powder diffraction pattern represented by 2θ angle, the error range of the 2θ angle ± 0.2; the benzbromarone crystal form A has a basic X-ray powder diffraction pattern; the benzbromarone crystal form A has a maximum endothermic peak when the heating rate is 10°C per minute in the differential scanning calorimetry spectrum , The melting point of benzbromarone crystal form A is 152.23°C; at 25°C, take 1.0g of benzbromarone crystal form A, add 10ml of chloroform, all the solids are dissolved, and the solution is clear; and take 1.25g of benzbromarone crystal form A, Add 25ml of N,N-dimethylformamide, the solid is slightly insoluble, and the solution is not clear; the crystal form A of benzbromarone is obtained by crystallization from a single solvent, acetone. The invention has good crystal form stability, simple preparation method, low cost, simple post-treatment, high purity of the prepared product and less related substances.

The invention provides a preparation process of bivalirudin for injection, and the process comprises the following steps: (1) dissolving bivalirudin and mannitol with water for injection to obtain a bivalirudin and mannitol mixed solution; (2) adding the bivalirudin mannitol mixed solution and a sodium hydroxide solution into one same container according to a certain flow ratio of the bivalirudinmannitol mixed solution to the sodium hydroxide solution being (1-9): 1 for stirring and mixing, adjusting the pH value of the solution to 5.0-6.0, and supplementing water to the total amount of the prepared solution so as to obtain a bivalirudin intermediate solution for injection; and (3) subjecting the bivalirudin intermediate solution for injection to sterilization, filtration, filling, semi-plugging, freeze-drying, plug pressing and capping so as to obtain a bivalirudin freeze-dried powder injection for injection. When the bivalirudin for injection is prepared by adopting the method, no bivalirudin is separated out in the liquid preparation process, the liquid preparation time is short, the microbial load of an intermediate solution is remarkably reduced, and the prepared bivalirudinfinished product for injection contains few related substances.

The invention belongs to the pharmaceutical chemistry field, and relates to a parenteral administration preparation comprising 4-(3,5-dimethoxyphenyl)-5-(3-hydroxy-4-methoxyphenyl)imidazole or pharmaceutically acceptable salts thereof and mannitol. The invention also relates to a preparing method of the preparation and an application of the preparation in drugs for treating tumor. The preparation can be preserved for a long time, has fewer related materials, is low in moisture absorption and good in appearance, and enables storage and transportation conditions to be simplified.

The invention relates to a hypotensive tablet containing a sodium chloride medicine carrier, which is suitable for a pharmaceutical enterprise. The disclosed tablet comprises the sodium chloride, candesartan cilexetil, and pharmaceutically acceptable adjuvants. The sodium chloride is stable in property and good in water solubility and compressibility, and is well compatible with the candesartan cilexetil. The sodium chloride is taken as the carrier for the candesartan cilexetil; by injecting polyethylene glycol 6000 solution or polyethylene glycol 8000 solution, a medicine is loaded on the sodium chloride and the mixed carrier containing other pharmaceutically acceptable adjuvants of the medicine; the adjuvants, such as a lubricant, are added to mix uniformly, and the mixture is subjected to tabletting and can be molded by compression under a pretty low pressure; and, by reducing the pressure in the tabletting process, the transformation of the candesartan cilexetil to an unstable crystal form due to over-high pressure in the tabletting process can be prevented so that the reduction of the candesartan cilexetil content and the increasing of the impurity content in the storage process can be prevented. The candesartan cilexetil tablet prepared by the invention has good stability and is released quickly.

The invention discloses a wettable powder formed by compounding pyrazosulfuron-ethyl and quinclorac. The wettable powder is prepared from, by mass, 47% of the quinclorac, 3% of the pyrazosulfuron-ethyl, 5% of an auxiliary agent, 5% of a wetting dispersing agent, 3% of an alkaline modifier, 5% of white carbon black and the balance fillers. The invention further discloses a preparing method of the wettable powder formed by compounding the pyrazosulfuron-ethyl and the quinclorac. The preparing method comprises the following steps of uniform mixing, air jet pulverization and the like. The preparedwettable powder formed by compounding the pyrazosulfuron-ethyl and the quinclorac has the advantages that the product suspension percentage is high, effective components are stable, and bulging doesnot occur; moreover, the preparing method is simpler, has a low requirement for equipment and has a great popularization effect.