137results about How to "Reasonable process route" patented technology

The invention discloses a production method of a nanometer silver wire material. The production method comprises the following steps:(1) mixing glycerol, water, polyvinyl alcohol pyrrolidone, silver nitrate and chlorine salt and heating to 180-240 DEG C, and stirring for 30-50 minutes so as to obtain a nanometer silver wire stock solution; (2) cooling the nanometer silver wire stock solution to below 80 DEG C, and diluting with water so as to obtain a diluted nanometer silver wire solution; (3) carrying out desalting and surface active agent removing treatment on the diluted nanometer silver wire solution, and concentrating to obtain a finely purified nanometer silver wire solution; and (4) carrying out spray drying on the finely purified nanometer silver wire solution obtained in step (3) so as to obtain nanometer silver wire powder, and cooling so as to obtain a finished production of nanometer silver wire powder. The production method provided by the invention has the advantages that the process is simple and reliable, the nanometer silver wire is single in shape, the production efficiency is high and the production cost is low; and the produced products have the characteristics of high purity, good quality, uniform size distribution and the like.

The invention relates to a preparation method of liquid calcium chloride, in particular to a method for producing the liquid calcium chloride by using the waste industrial acid, which belongs to the technology field of chemical industry. The preparation method is characterized in allowing massive limestone and waste hydrochloric acid obtained by acid washing strip steel to react at a certain ratio and neutralizing with lime cream to obtain calcium chloride at a certain concentration. Proved by the production, the preparation method is capable of effectively reducing the production cost and achieving comprehensive utilization of the waste industrial acid and remarkable economic and social benefits.

The invention is to process various kinds of waste battery in classifications and uses chemical or physical method to extract zinc salt, chalcanthite, carbon black, manganese bioxide and mercury etc.from zinc-manganese battery, ferrisulphas, potion and nickel sulfate etc. from ferronickel battery, potion, cadmium sulfate and nickel sulfate etc. from cadmium-nickel battery, potion, silver salf and white copperas etc. from silver-zinc battery. Said technology can be used to proces waste battery and make the resource obtd. fully utilization. The advantages are: simple and reasonable processing technology and low cost, no three waste problem, no secondary pollution.

The present invention belongs to the field of Chinese medicine preparing technology. The ginkgo leaf extract has total flavone and total terpene lactone content over 80 %, total flavone content over 70 %, flavonoid glycoside content over 40 % and total terpene lactone content over 10 %. The extraction process includes the following steps: extracting, purifying and separating, concentration, drying, etc. Compared with available technology, the present invention has the advantages of reasonable technological path, being suitable for industrial production, low production cost, high extracting rate of effective components, etc. The present invention also discloses the infusion liquid and powder for injection with the ginkgo leaf extract and their preparation process. The ginkgo leaf extract has wide application in medicine for treating cardiac vascular diseases.

The invention discloses a manufacturing technology for a high-speed and high-temperature precision deep groove ball bearing. A complete set of bearing product is manufactured by processing a forge piece blank into a workpiece billet with an outer ring and an inner ring, then respectively performing technical processes of respective technologies of cold rolling, thermal treatment, coarse grinding, thermal stabilization, fine grinding, grinding and the like, performing inspection and then performing cleaning and assembling. In the cold rolling technique, a cold rolling machine tool is used, a main driving forming rolling wheel is used as an outer die of a mold, and a driven forming mandril is used as an inner die of the mold, so that the forming rolling wheel drives the workpiece billet to rotate, and a supporting wheel pushes the forming mandril to forwards feed and extrude the workpiece billet to roll and form a product; in the thermal stabilization technique, the workpiece subjected to coarse grinding is subjected to heat preservation in a tempering furnace at temperature of 400 DEG C for 4 hours and then is taken out for natural cooling. The limit rotating speed of the complete set of bearing is 12,000 r/min, and the limit working temperature is 160 DEG C; the working noise is less than or equal to 45 dB; the rated load is Cr41.2KN and Cor24KN. The manufacturing precision is high, and the matching performance is high.

The invention discloses a method for preparing an ursodesoxycholic acid by the chiral catalytic hydrogenation of a 7-ketodesoxycholic acid, which is characterized by comprising the following steps of: performing oxidation to prepare the 7-ketodesoxycholic acid from a chenodeoxycholic acid serving as an initiative raw material by using a common method; dissolving the 7-ketodesoxycholic acid into a solvent, adding a chiral catalyst, maintaining the pressure of 0 to 20 MPa under alkali condition, introducing nitrogen to perform hydrogenation reduction reaction at 10 to 80 DEG C, and performing distillation after the reaction is finished to remove the solvent; adding purified water in a volume which is 10 to 100 times that of a hydrogenation reduction reaction product, and adding acid liquor to crystallize the hydrogenation reduction reaction product; and separating solids from liquid, and performing washing and drying to obtain solid powder which is the ursodesoxycholic acid. The method for preparing the ursodesoxycholic acid by the chiral catalytic hydrogenation of the 7-ketodesoxycholic acid aims to overcome the shortcomings of the prior art, and ensures a short production flow, high yield and high quality.

The invention discloses a gingko beverage and a processing technology thereof, which belong to the technical field of beverage processing. Technological parameters are optimized by using integrated comprehensive applying of technologies of rinsing, ultrasonic lixiviation, homogenization, rubber milling and the like, the original nutrition and flavor of the gingko are kept, and the beverage product quality is improved; the product of the beverage is scour and sweet, tasty and refreshing, has rich flavor, pure mouthfeel and strong palatability, contains rich active ingredients of gingko flavone, gingko lactone compound and the like and nutritive substances of vitamins, mineral substance and the like, has extremely high health care function and medicinal value, and can improve blood circulation, soften blood vessel, clear free radical in vivo, clear heat and detoxicate, tonify middle-jiao and qi, moisturize lung and relieve asthma, resist aging and prolong life after long-term drinking. The product is stable in quality; deposits and demixing are not produced after long-term storage at normal temperature; the state is stable; and the shelf life and the quality guarantee period are prolonged.

The invention provides a method for squeezing edible tea seed oil at normal temperature. The method comprises the following steps of: airing tea seeds at the normal temperature, separating seed hulls, extruding for squeezing at the normal temperature, refining crude oil, namely (1) filtering the crude oil to remove impurities; (2) mixing, acidifying, washing and degumming; (3) decolorizing by using a mixed decolorant; (4) standing the crude oil, separating to remove moisture and the impurities from the oil, dehydrating the crude oil from which the impurities are removed at the normal temperature under vacuum; (5) standing the dehydrated crude oil at the temperature of 5 DEG C, crystallizing, growing crystals for 48 hours, precipitating wax and ester in the oil and separating; and (6) performing diaphragm filter pressing on the tea seed oil from which the crystals are removed to obtain the refined tea seed oil. According to the method, a process is performed at the temperature of below 65 DEG C, so the process is simple, low in energy consumption and high in oil yield and belongs to an environment-friendly process; and the squeezed oil tea is high in quality.

The invention discloses a wastewater treatment system and a wastewater treatment method based on photoelectric Fenton-biological enhancement. The system comprises a preaeration tank (1), a photoelectric Fenton reactor (2), a degassing neutralizing tank (3), a coagulative precipitation tank (4), an adjustment tank (5), a microencapsulation biological fluidized bed (6) and an immobilization biological active carbon bed (7) which are connected in sequence through water pipes. The photoelectric Fenton-biological enhancement-based wastewater treatment system is reasonable in structural design, convenient to operate, high in working efficiency, low in cost and good in wastewater treatment effect and orderly, and organically combines physical and chemical treatment, biochemical treatment and guarantee treatment; the photoelectric Fenton reactor, the microencapsulation biological fluidized bed and the immobilization biological active carbon bed support and promote one another functionally, so that the removal efficiency for refractory characteristic organic pollutants is over 98 percent, the sludge yield is low, the sludge treatment cost is low, the sewage treatment effect is good, and the wastewater treatment system based on photoelectric Fenton-biological enhancement has important significance for environmental protection.

The invention discloses a preparation method of trans-trans dicyclohexyl alkane liquid crystal compounds. According to the preparation method, 1-(4-(4-alkylcyclohexyl)phenyl)alkyl-1-one is used as a raw material; a benzene ring is converted into a cyclohexyl ring by means of a catalytic hydrogenation reaction; transposition is performed under the alkaline condition, so that 1-(4-(4-alkylcyclohexyl)cyclohexyl)alkyl-1-ol is obtained; the trans-trans dicyclohexyl alkane liquid crystal compounds are finally obtained by carrying out an oxidation reaction and a reduction reaction. The preparation method provided by the invention is unique in synthetic route, not only realizes green chemical industry, but also enables the product yield to be greatly increased, improves the product quality, and reduces the cost.

The invention discloses a synthetic method of selexipag. According to the method, 4-[(t-butyloxycarboryl)(isopropyl) amino]-1-butanol and tert-butyl bromoacetate are subjected to a condensation reaction, and obtained 4-[(t-butyloxycarboryl)(isopropyl) amino butoxyl] tert-butyl acetate is subjected to a hydrolysis reaction under an alkaline reaction; obtained 4-[(t-butyloxycarboryl)(isopropyl) amino butoxyl] acetic acid and methanesulfonamide are subjected to a condensation reaction; obtained 2-[4-[(t-butyloxycarboryl)(isopropyl) amino butoxyl]-N-(methylsulfonyl) acetamide is subjected to a deprotection reaction under an acid condition, obtained 2-[4-(isopropyl) amino butoxyl]-N-(methylsulfonyl) acetamide and 5-chloro-2,3-diphenyl pyrazine are subjected to a substitution reaction, and the finished product selexipag is obtained. The method has a reasonable and concise process route and is environment-friendly and suitable for industrial production, the operation is simplified, and the cost is relatively low.

The invention discloses a method for producing polysilicon with silicon tetrafluoride reduced by plasmas, specifically comprising the following steps: pumping the mixture of the silicon tetrafluoride gas and hydrogen as the raw materials into a plasma reactor filled with hydrogen, heating the silicon tetrafluoride gas and hydrogen to 1200-3500 DEG C instantaneously under the action of the plasmas and the silicon tetrafluoride gas and hydrogen carrying out chemical reaction to produce the polysilicon solid and the hydrogen fluoride gas; the produced polysilicon solid and hydrogen fluoride gas and the unreacted silicon tetrafluoride gas and hydrogen jointly entering into a gas-solid separation device, separating the polysilicon solid from the gases, the purity being more than 99.9999% and producing the finished product; and the hydrogen fluoride gas and the unreacted silicon tetrafluoride gas and hydrogen jointly entering into a condenser, condensing the hydrogen fluoride gas to liquid and the silicon tetrafluoride gas and hydrogen returning to the plasma reactor. The method has the advantages of novel and reasonable process routes, low equipment requirements, easy industrialization realization and low energy consumption.

The invention relates to a process for improving the purity of diphtheria toxin. The manufacture process comprises the following steps of solid culture medium transfer, culture in a liquid culture medium fermentor, removal of thalli by centrifugation, primary salting-out, secondary salting-out, ultrafiltration desalting, gel filtration, aseptic filtration, removal of toxin, detection and storage stock solution, preparation of semi-finished products, finished products, wherein the liquid culture medium in the liquid culture medium fermentor is treated to remove proteins with the molecular weight of more than 50,000, and the culture products are almost diphtheria toxin with the molecular weight of more than 50,000; and by salting out and gel filtration, the proteins and other impurity proteins of which the molecular weight is less than 50,000 in the liquid product are further removed, so that the diphtheria toxin with high purity is obtained.

The invention relates to a method for utilizing incineration fly ash and bypass ash in a combined manner. According to the method for utilizing the incineration fly ash and the bypass ash in the combined manner, based on full utilizing of existing resources and conditions of a cement enterprise, by reasonably arranging work procedures, stable running of the process is guaranteed, influences of rawmaterial component fluctuation on the process are avoided, various chemical products can also be obtained, and the additional value of the products is improved. In the method, sources of raw materials are convenient, the process route is reasonable, utilizing manners of the incineration fly ash and the bypass ash can be effectively expanded, emission reduction of carbon dioxide is achieved, and universal applicability and popularizing value are achieved.

The present invention relates to modern extracting and purifying process for preparing gingko leaf extract with rich active component. Compared with available process including organic solvent extraction and single resin adsorption, the modern extracting and purifying process has the advantages of reasonable technological path, high extracting rate and high effective component content in the product, and the prepared ginkgo leaf preparation has effectively controlled quality, determined curative effect and tacking convenience.

The present invention discloses peach gum producing process, which includes the technological steps of depurating and crushing, hydrolyzing, decolorizing, centrifugally depuration, purifying with ceramic membrane, desalting and concentrating with ceramic membrane or reverse osmosis membrane, spray drying, cooling, etc. The present invention has reasonable technological path, low production cost and high production efficiency, and the product has high purity, high quality, stable molecular weight and other features.

The invention discloses a combined treatment process for flue-cured tobacco, burnt hairy tobacco and white hairy tobacco, which comprises the following steps: loosening and dampening flue-cured tobacco flakes, burnt hairy tobacco flakes and white hairy tobacco flakes respectively, and then treating the tobacco flakes by adding treatment materials respectively; evenly mixing the material-adding treated flue-cured tobacco flakes, burnt hairy tobacco flakes and white hairy tobacco flakes to form mixed tobacco flakes; carrying out secondary treatment for the mixed tobacco flakes by adding the treatment material; and storing and treating the mixed tobacco flakes. The combined treatment process for the flue-cured tobacco, burnt hairy tobacco and white hairy tobacco can improve the taste absorption quality of the integral formulation once, and can keep the integral consistency of the formulation, maintain the product quality stable, improve the quality of tobacco leaves, increase the moisture retentiveness of the tobacco leaves and reduce the cutting treatment of the tobacco leaves. The process of the invention has compact and reasonable process route, and can remarkably promote the comprehensive quality of the formulation.