170results about How to "Simple preparation" patented technology

A separation column and a method of making the separation column are provided. The separation column includes a separation channel and fritless separation medium in the channel. The separation medium includes a porous matrix, and the porous matrix includes a metal organic polymer, such as a photopolymer. The separation medium can be used to separate a sample of analytes.

The invention discloses complete equipment and a method for extracting and purifying precious metals from waste circuit boards. The complete equipment comprises a bottom-blowing furnace, a secondary smoke combustion furnace, an absorption tower, a pulsed jet cloth filter, a wet desulfurization device and an electrostatic precipitation defogging device, and is characterized in that smoke generated by the bottom-blowing furnace is discharged through a flue arranged on the top of the bottom-blowing furnace; the flue communicates with an inlet of the secondary smoke combustion furnace; the secondary smoke combustion furnace communicates with a spraying quenching tower through a smoke waste heat boiler; an outlet of the spraying quenching tower communicates with the pulsed jet cloth filter through the absorption tower; an activated carbon spraying device is arranged inside the absorption tower; the pulsed jet cloth filter communicates with the wet desulfurization device; and the wet desulfurization device communicated with a chimney through the electrostatic precipitation defogging device. Effective separation and respective enrichment and recycle of various metals are achieved, organic substances are used as fuel, and no secondary pollution is generated for the environment. The process procedure is short, and the remarkable economic, environment-friendly and social benefits are achieved.

The invention relates to an intelligent terminal electronic ordering method and a system based on 3G and cloud technology, uses a 3G or WiFi wireless network and internet for data exchange, configures a menu on the computer terminal or intelligent terminal and uploads the menu information to the cloud server, after synchronous update of other terminal device, the intelligent terminal can be used for ordering operation, and the ordering information is uploaded to the cloud server and connected terminal thereof for execution of subsequent operation; The intelligent terminal can also be used for billing operation, billing information is uploaded to the cloud server and a connected cloud printing device for execution of bill printing. Restaurant operation conditions can be queried on both the computer terminal and the intelligent terminal. The method not only makes the menu configuration easy, improves ordering experience, but also improves service quality and efficiency, relevant information is stored on the cloud server, and the consumption data can be used for statistic analysis at any moment.

The invention discloses a waste circuit board material disposal and utilization technology. Waste circuit board materials serve as raw materials, and are subjected to mechanical crushing and smelting in an oxygen enrichment side-blowing molten pool at the temperature of 1100-1400 DEG C to produce crude copper rich in rare and noble metals; then metallic copper and anode mud rich in rare and noble metals are obtained through electrolytic refining; smelting gas restrains resynthesis of dioxin after being subjected to secondary combustion and quick cooling; and a bag collector recycles oxides of volatile metals such as tin, lead and zinc, and the dust content of the drained gas is 0-15 mg/Nm<3>. A trapping agent can make the copper content of slag be lower than 0.2%, recycling of all rare and noble metals is achieved, and the slag is waste slag containing silicate and can be used as cement raw materials or road foundation laying materials. The waste circuit board materials and the like are recycled and utilized, effective separation and respective enrichment and recycle of various metals are achieved, organic substances are used as fuel, and no secondary pollution is generated for the environment. The process procedure is short, and the remarkable economic, environment-friendly and social benefits are achieved.

The invention discloses a Chinese medicinal composition for treating gout and a preparation method thereof. The Chinese medicinal composition comprises more than forty Chinese medicinal components such as angelica, gentiana macrophylla, peach seeds, ground beetle, earthworm, poria cocos, glabrous greenbrier rhizome, yam rhizome, clematis root, white atractylodes rhizome, atractylodes, cortex phellodendri, raw coix seeds, eupatorium lindleyanum, polygonum cuspidatum, cyathula root, rhizoma alismatis, honeysuckle stem, astragalus root, loosestrife herb and red peony root. The Chinese medicinal composition facilitates pharmacy and administration, is specially used for treating the gout, is safe in clinical application, and treats both symptoms and root causes. Through reasonable compatibility of each component, the treatment effect is improved, the medicinal properties are changed or alleviated, and the toxicity and side effects of medicaments are eliminated. The medicaments with strong properties and flavors are alleviated, the treatment effect is significant, many active ingredients are absorbed, and the composition has a good effect of treating or relieving the symptoms of the gout.

The invention discloses an A beta targeted recombinant lipoprotein nano drug carrier and a preparation method and application thereof. The A beta targeted recombinant lipoprotein nano drug carrier comprises lipid, apolipoprotein and a drug, the drug is an alzheimer disease targeting therapeutic or diagnostic drug, and comprises one or a plurality of small molecule chemical therapeutic drugs and large molecule polypeptide, protein, gene therapeutic and diagnostic drugs. By construction of the drug carrier, the defects of scarce sources, cumbersome preparation, low quality controllability and the like of natural lipoprotein can be solved, and the drug carrier provides a new and more effective and safe solution for delivery of the alzheimer disease targeting therapeutic or diagnostic drug, and has the important research value and clinical application prospects.

The present invention relates to a process for the preparation of iron oxide/iron oxyhydroxide-containing weakly basic anion exchangers prepared according to the phthalimide process and their use for removing oxo anions and their thio analogues, preferably of arsenic, from water and aqueous solutions and to a regeneration process.

Disclosed is a use of bionic recombinant high density lipoprotein (HDL) in the preparation of drugs for preventing and treating Alzheimer's disease. The bionic recombinant HDL consists of lipid and apoprotein. The apoprotein is one or more of ApoE and mimetic peptide thereof, ApoA-I and mimetic peptide thereof, and Apo-II and mimetic peptide thereof, Apoc and mimetic peptide thereof. Preferably, the apoprotein is one or more of ApoE3 and mimetic peptide thereof.

The invention belongs to the medicine category, and in particular discloses a mild moxibustion plaster. The mild moxibustion plaster comprises the following components in parts by weight: 40-50 parts of blumea oil, 20-30 parts of indometacin, 30-45 parts of heating element, 5-10 parts of medical rubber and 2-5 parts of back lining cloth, wherein the heating element comprises reduced iron powder, active carbon, saline water and far infrared ceramic powder on a ratio by weight of reduced iron powder to active carbon to saline water to far infrared ceramic powder as (8-14):(3-6):1:(5-8). According to the mild moxibustion plaster disclosed by the invention, the moxibustion method is combined with plasters, so that a mild moxibustion plaster is developed; and the mild moxibustion plaster is used for moxibustion treatment, therefore the disadvantages of inconsistent moxibustion time, less human body absorption and large raw material waste and the like in the conventional moxibustion method are completely overcome.

According to the invention, metal hydride and an oxidizing agent are mixed, and under the action of an adhesive, the mixture is granulated to prepare a high-heat mixed explosive. The explosive contains the following components, by mass, 50-80% of cyclonite (RDX) and octogen (HMX) or hexanitrohexaazaisowurtzitane (CL-20), 10-25% of an oxidizing agent, 10-25% of metal hydride and 1.0-5% of a binder. According to the invention, metal hydride is added into the explosive for the first time so as to obtain the high-heat high-power explosive with the value of explosion heat being 14000-22000kJ/kg. The explosive has excellent sensitivity, and storage life of the explosive reaches 30 years. The explosive is suitable for charge by using press-fitting technology.

The invention relates to a Xiao Jin dispensible tablet and a preparation method thereof. The preparation method is as follows: muskone, semen momordicae, prepared kusnezoff monkshood root, resina liquidamberis, frankincense, myrrh, trogopterus dung, alcohol processed radix angelica sinensis, lumbricus and fragrance ink are taken as raw materials to prepare raw medicine material fine powder and extract fine powder, and a proper amount of auxiliary material is added, so that a Xiao Jin dispensible tablet capable of being disintegrated within three minutes fully and achieveing a uniform dispensible state is prepared. The Xiao Jin dispensible tablet has efficacies of removing stasis and decreasing swellinging, is used for curing crewels, goiter and tumor, lump in breast which are caused by nitrogen stagnation and have the symptoms that part or a plurality of parts of skin or part or a plurality of parts of masses under the skin can be pushed to move, or the bone or bone joints are swelled, are not changed in skin color, has sclerema and is painful; and the Xiao Jin dispensible tablet has the characteristics that the Xiao Jin dispensible tablet can be disintegrated and dispersed uniformly, is easier to accept and take by patients, and is more convenient to carry and use.

The invention relates to a composition and a preparation process, a testing process and an application thereof. The composition comprises a therapeutically effective amount of candesartan or pharmaceutically acceptable ester or salt, a therapeutically effective amount of amlodipine or other pharmaceutically acceptable salt, 70-150 parts of mannitol or lactose, 2-5 parts of croscarmellose sodium or cross-calcium carboxymethyl cellulose and 5-40 parts of microcrystalline cellulose or corn starch. The composition is easy to prepare, low in production cost, utilizes accessories of unique prescription, and the like, can be prepared into oral preparation in forms of tablets, capsules, granules and the like by means of pharmaceutics, can be checked by different checking processes, has high quality, has functions of treating hypertension, angina pectoris and kidney diseases and has effect of myocardial protection.

The invention discloses a method for attaching a film material of a light guide plate, comprising: placing the light guide plate on a supporting mechanism, moving the film material attaching mechanism to the film material attaching surface corresponding to one side of the light guide plate, and pressing the upper part of the moving member The pressing part and the lower pressing part press the light guide plate in the thickness direction of the light guide plate, the separation member separates the film material on the supply path of the film material from the profile, and the attachment member passes along the path of the light guide plate with a narrow surface or a The film that has been separated from the profile is moved and pressed flat on the film attachment surface of the light guide plate in the way of positive contact of the narrow line, and then the film that has not been separated from the profile is cut by the cutting member And it will not cut off the profile. Adopting the technical scheme of the invention can simplify the inventory management of membrane materials and solve various disadvantages caused by manual pasting.

The invention discloses a tranexamic acid sustained-release solid composition and a preparation method thereof. The sustained-release solid composition is prepared by taking tranexamic acid as a raw material and adding a sustained-release framework material in a proper proportion. The prepared preparation is capable of achieving zero-order release within 3 h to keep blood concentration steady and is used for treating women suffering from menorrhagia clinically.

The invention relates to a pattern color spraying method for a plastic yarn-loop floor mat, which is characterized by using the white or light-colored plastic yarn-loop floor mat as a color spraying object and being operated according to the following steps: firstly, spraying a pre-press processing liquid coating on the front side of the plastic yarn-loop floor mat in a uniform vaporific mode by utilizing spraying equipment; secondly, using color eco-solvent ink as a spraying raw material and performing spraying to the front side of the plastic yarn-loop floor mat in a mode of scanning line by line by utilizing a color spraying machine according to a preset pattern until the pattern is formed by spraying; and thirdly, heating and curing to enable the sprayed color pattern to be firmly attached to the surface layer of the plastic yarn-loop floor mat. According to the invention, for the non-planar and hollow-out yarn-loop layer, the color pattern is subjected to spraying by adopting a mode of increasing the ink quantity or increasing the ink jetting times, however, pattern layers on yarn loops with different heights can be converged to form the complete pattern; the complete pattern can be seen from any overhead view angle at a certain height; and the defect that the plastic yarn-loop structure cannot be printed with color or develop color is broken through.

The invention relates to a composite rubber asphalt concrete steel bridge surface pavement structure which sequentially consists of the following structure layers from a steel bridge to a surface layer: an adhesive waterproof layer and fine particle type dense composite rubber asphalt concrete, wherein the total pavement thickness of the adhesive waterproof layer and the fine particle type dense composite rubber asphalt concrete is 6-7cm. According to the optimized design of structure combination, the balance of sliding resistance, bending resistance and high-temperature shearing resistance are mainly considered on the surface layer, the surface layer is made of a medium particle type material, the compaction, the high-temperature shearing resistance and deformation compliance are mainly considered on a lower layer, and the lower layer is made of a fine particle type material. According to the technical scheme, the composite rubber asphalt concrete steel bridge surface pavement structure has a high high-temperature property, high crack resistance and the compaction, the adhesive waterproof layer has high pull strength, and the shear translation damage to a asphalt concrete layer under the action of the vehicle load can be effectively avoided.

A producing method of a cilastatin intermediate is provided to obtain (Z)-7-hollow-2-((s)-2,2'-dimethylcyclopropane carboxamido)-2-heptenoic acid and its salt with high purity. A producing method of a cilastatin intermediate comprises the following steps: obtaining an (E,Z)-7-hollow-2-((s)-2,2'-dimethylcyclopropane carboxamido)-2-heptenoic acid alkali salt solution using a hydrolyzation after adding an alkali solution; extracting a first organic solvent layer from the reactant after adding a first organic solvent and acid to perform a layer separation; obtaining a mixed crystal of the (E,Z)-7-hollow-2-((s)-2,2'-dimethylcyclopropane carboxamido)-2-heptenoic acid alkali salt; and obtaining (Z)-7-hollow-2-((s)-2,2'-dimethylcyclopropane carboxamido)-2-heptenoic acid amine salt.

The invention discloses a functional nano catechin gene-introduction material. Catechin and ferrous sulfate are combined into a catechin-Fe<2+> nanometer spherical material of which the average diameter is about 100 nm, the catechin content is 0.94 g/g, and the ferrous ion content is 0.06 g/g. The invention further discloses a preparation method of the functional nano catechin gene-introduction material. The functional nano catechin gene-introduction material has relatively high transfection efficiency which can reach about 40 percent in human breast carcinoma cells. The toxicity is low, the catechin is high in biocompatibility, and thus the cell survival rate is very high. The dispersity of the material is high and the material conforms to the requirements of transfection; the cost is extremely low; the catechin is a main active ingredient extracted from tea leaves, namely a polyphenolic compound, the price of the catechin is low, and ferrous sulfate is also a common cheap reagent which is easy to get. For the material preparation, the reaction is simple and easy in operation, and the repeatability is high.

The invention relates to the construction of targeted NK cells used for tumor immunotherapy, and specifically relates to a preparation method for a membrane surface engineered NK cell, a pharmaceutical composition and an application. A targeting vector is adopted to introduce an azide group or DBCO on the surface of a NK cell, and polypeptide targeting PD-L1 can be coupled to the surface of the NKcell through copper-free click chemical reaction, so that a membrane surface engineered NK cell can be constructed. An application of the membrane surface engineered NK cell in treating PD-L1 positive tumor including head and neck squamous cell carcinoma, non-small cell lung cancer and triple negative breast cancer is also disclosed. Compared with the prior art, the preparation method has the following advantages: the targeting of the NK cell can be strengthened, so that potential hazards caused by viral vector transfection can be eliminated; the problems of CAR-T cell individualization and complex manufacturing processes can be solved; and the tumor infiltration capabilities and targeted killing activity of the NK cell can be enhanced, and immune escape mediated by a PD-1/PD-L1 pathway can be effectively blocked, so that the membrane surface engineered NK cell has potential clinical application prospets.

The invention provides a method for preparing silicon-based biolubricant base oil from organosilicon modified fatty acid ester. The method comprises the following specific steps: mixing fatty acid ester with organic acid and a catalyst and adding the mixture into an epoxidation reaction kettle, dropwise slowly adding an oxidizing agent, reacting, standing for layering, fetching a supernatant liquid and distilling to obtain epoxidized aliphatic ester; carrying out a ring-opening reaction between epoxidized aliphatic ester and organic acid, washing to neutral level after the reaction and carrying out reduced pressure distillation to obtain a ring-opening product; stirring the ring-opening product and heating to reaction temperature, dropwise adding organosilicon and an acid binding agent according to requirements and carrying out a silylation reaction, directly carrying out reduced pressure distillation after the reaction, and separating a solid to obtain the silicon-based biolubricant base oil. By the above method, the disadvantage that biolubricant base oil produced by existing technologies has poor oxidation stability and poor viscosity-temperature characteristic is overcome. The production process is environment-friendly, and energy consumption is low. The industrial acid binding agent used in the method is low-cost such that cost of the product is reduced.