65results about How to "Suitable for separation" patented technology

The magnetic separator includes separating ring and magnetic field unit, the magnetic field unit is distributed beside the separating ring to produce magnetic force lines penetrating the separating ring, and the separating ring is provided with at least one pulse device to make ore pulp move in the direction perpendicular to the magnetic force lines. Owing to the combined closed magnetic field unit to produce horizontal magnetic force lines and unique double-pulse device, the particles adsorbed to the surface of the medium exist only in the side in magentic force line direction and the ore pulp reciprocates to produce fluid motion tangent to the particle side and shear and clean the particles, so that the included non-magnetic and weak magnetic adherant particles are washed out resulting in greatly raised separating effect.

A method for producing a turbine casing for a rotating machine is provided. The casing is manufactured by a casting process, and is cast in two casing halves which are separated by a parting plane which passes axially through the turbine casing. Each casing half is first cast in one piece in each case, and each casing half is separated into at least two casing sections which are joined together for forming a casing half in each case.

The invention discloses filter paper having a function of oil-water separation, and a simple preparation method and application of the filter paper. The filter paper takes common experimental filter paper as substrate, and an organic/inorganic compound hydrophobic layer is loaded on the substrate, wherein the organic/inorganic compound hydrophobic layer is prepared from the following components: nano-silica, a silane coupling agent, a catalyst, ethanol and water, and the weight ratio of the nano-silica to the silane coupling agent to the catalyst to the ethanol to the water is equal to (2-5):(2-10):(2-10):(80-100):(5-20). The filter paper is prepared by adopting a dip-coating method; the preparation method of the filter paper comprises the steps of evenly dispersing the nano-silica, the silane coupling agent and the catalyst in mixed liquid of the ethanol and the water, dipping the filter paper into the dispersed liquid, taking out the dipped filter paper, and then naturally drying the filter paper in the air to obtain the filter paper having the function of oil-water separation. The filter paper is simple in preparation method, good in stability, reusable and convenient to dispose, and has a good application prospect in the fields such as oil-water separation and oily sewage treatment.

The invention provides a substrate structure applied to soft electronic elements. The substrate structure comprises a supporting carrier, a release layer which covers the supporting carrier by a first area, and a soft substrate which covers the release layer and the supporting carrier by a second area; the second area is larger than the first area; and the density of the soft substrate to the supporting carrier is larger than the density of the release layer to the supporting carrier. The invention also provides a manufacturing method of the substrate structure.

The invention discloses a mud-and-water auto-separating pipeline apparatus and belongs to the technical field of water conservancy transportation pipelines. The pipeline apparatus includes a water inlet pipe, a water outlet pipe and a drainage pipe and also includes a mud-and-water auto-separating part. The mud-and-water auto-separating part includes a cylindrical pipe body, wherein annular steps are formed on an inner side wall of the cylindrical pipe body. An inner fixing base is arranged under the annular steps. An annular groove is formed by the inner fixing base and the inner side wall of the cylindrical pipe body. An annular filter screen is disposed on the annular steps, wherein the top end of the annular filter screen is connected to the annular steps and the bottom end of the annular filter screen is connected to the inner fixing base. A clear water chamber is formed by the inner side wall of the cylindrical pipe body and an outer side wall of the annular filter screen. The water outlet pipe is communicated with the clear water chamber. The water inlet pipe is arranged on the side wall of the cylindrical pipe body and is arranged above the annular steps. The pipeline apparatus can automatically separate mud from water, wherein clear water flows out through the water outlet pipe while a mud and sand mixture is discharged through the drainage pipe. The pipeline apparatus is free of extra kinetic energy, is low in energy consumption and is suitable for agricultural irrigation.

The invention discloses a tyre separation device of a tyre transportation line and relates to the technical field of automatic production. The tyre separation device of the tyre transportation line comprises a main rollgang, wherein a high speed roller bed for transporting single tyres is hinged to the output end of the main rollgang, hook type stoppers are separately arranged at the feed inlet and the discharge end of the high speed roller bed, each hook type stopper is provided with a barrier arm part rotatably connected to a rack, and a power cylinder which drives the barrier arm part to stretch out of the transportation surface of the high speed roller bed is mounted on the rack; a first stand-out switch and a first occupied switch are separately arranged on front and back sides of thebarrier arm part located at the feed inlet, a second stand-out switch and a second occupied switch are separately arranged on front and back sides of the barrier arm part located at the discharge end, and the power cylinder, the first occupied switch, the second occupied switch, the first stand-out switch and the second stand-out switch are electrically connected to a control box. Compared with the prior art, the tyre separation device can separate tyres, the diameters phi of which are 750mm to 1300mm on the transportation line, and the tyre separation device is suitable for transporting andseparating tyres, the diameter difference of which is relatively great.

This invention relates to a hydrogen generating bacteria and its screening method. It is named Ethanologyenbacterium hit B49 with preserving no. CGMCC No.1153. It is cultured in a special medium and has high efficiency of hydrogen generation. The said bacteria is of acid resistance.

The invention discloses a meropenem raw medicine which is characterized in that the content of meropenem in the raw medicine is 98.5-101.0% by weight based on anhydride; the content of the impurity A and impurity B in the related substances of the raw medicine is not greater than 0.25% respectively; the content of any unknown single impurity is not greater than 0.05%; the total content of other impurities except the A and B is not greater than 0.2%; the acetone residue is not greater than 400ppm and preferably not greater than 100ppm. The invention also discloses a meropenem pharmaceutical composition for injection, and the pharmaceutical composition takes the meropenem raw medicine provided by the invention as an active ingredient and has excellent stability. The meropenem raw medicine provided by the invention has the advantages of high purity, clear impurity condition, low solvent residue, good solubility and good long-term storage stability, and can guarantee the effectiveness and safety of the medicine. In the invention, the process is simple and compact, the cost is remarkably low, and the control is simple. The invention is suitable for industrial large-scale aseptic production of the meropenem raw medicine and pharmaceutical preparation.

The invention provides a gas chromatographic packed column, a preparation method thereof and an application of the packed column. The gas chromatographic packed column comprises a packed column pipe and a packed column stationary phase, the packed column pipe is filled with the packed column stationary phase, the packed column stationary phase comprises a packed column filler, the packed column filler comprises attapulgite, and a preparation method of the packed column filler includes the steps: crushing the attapulgite, and screening the crushed attapulgite to obtain attapulgite powder with particle meshes no less than 200; adding binders into the attapulgite powder, uniformly mixing mixture to prepare small attapulgite balls, and drying the small attapulgite balls at the temperature of 250-350 DEG C; separating the small attapulgite balls in a screening manner to obtain uniform packed column filler with particle meshes of 40-140. According to the novel gas chromatographic packed column, kinds of the gas chromatographic packed column are enriched, the gas chromatographic packed column is applied to analysis of gas dissolved in transformer oil, and the gas dissolved in the transformer oil can be sensitively, rapidly and accurately detected by one chromatographic packed column.

The invention discloses a preparation method of coal-based activated carbon for nitrogen/methane separation and the prepared activated carbon. The preparation method comprises the following steps: taking anthracite as a raw material, and crushing; uniformly mixing the pulverized coal obtained by crushing with a binder, an activated catalyst and water to obtain a mixture; carrying out pressure molding on the obtained mixture, and naturally airing molded strips to cure the molded strips; putting the cured molded strips into a carbonization furnace, and carbonizing the molded strips under the condition of air isolation; putting the obtained carbonized material into an activating furnace, and performing activating by adopting carbon dioxide gas as an activating agent to obtain the coal-based activated carbon for nitrogen/methane separation. By selecting suitable coal types, improving the production process and simplifying the preparation process, the preparation process of the coal-based activated carbon for nitrogen/methane separation suitable for large-scale production is successfully researched, and the purpose of preparing a high-performance activated carbon adsorbent at low cost is achieved.

The invention provides a method for synthesizing alendronic acid. According to the invention, 4-aminobutyric acid, phosphorous acid, phosphorus trichloride or phosphorus pentachloride are reacted in aprotic polar solvent, and then the mixture obtained through the reaction is hydrolyzed and crystallized to obtain the alendronic acid. The method has high safety and reliability, easily separated product, strong operability, high yield and low cost, and is particularly suitable for large-scale production.

The present invention discloses a method for separating and preparing rumicin. The method comprises subjecting sheep hooves to percolation extraction with dichloromethane, and recovering the solvent to obtain a dry crude extract; and selecting a two-phase solvent system, adopting high-speed countercurrent chromatography, dissolving the crude extract in a mixed solution of a top phase and a bottom phase, filling a stationary phase in a separation column, connecting the head end of the separation column with a sampling valve, collecting an isolate, concentrating, and drying to obtain the final product. The two-phase solvent system is a petroleum ether-ethyl acetate-ethanol-water system, the top phase is the stationary phase, and the bottom phase is a mobile phase. The prepared product has content of rumicin up to 98%.

The invention discloses a method for separating and purifying EGCG (Epigallocatechin Gallate) by medium-pressure high polymer inversed phase chromatography. The method comprises the steps of dissolving a tea polyphenol raw material by taking acidified ethanol water with certain concentration as a mobile phase, filtering the acidified ethanol water by a micro-filtration membrane, then eluting the mobile phase by using a CCTRI-1 monodisperse high polymer inversed phase chromatographic column, collecting eluted cut fractions in a segmenting manner, concentrating the cut fractions to a certain concentration by a nanofiltration membrane, and drying the concentrate in a vacuum freeze drier to obtain a high-purity EGCG product. According to the method, the process is simple, the operation is convenient, the production cycle is short, the separating efficiency is high, the product purity is high, and a solvent used in the separation and purification process is ethanol solution which is non-toxic and can be recycled, so that the low carbon and environmental protection effect is realized, and the safety problem caused by the using of organic solvents can be effectively avoided.

The invention provides an industrial device for lithium iron phosphate liquid-phase thermal synthesis, which comprises a liquid-phase reaction kettle used for mixing raw materials for preparing lithium iron phosphate and auxiliaries to form nano-scale or micron-scale lithium iron phosphate particles under proper reaction conditions; the washing and separating integrated kettle is communicated to the mixed liquid outlet of the liquid-phase reaction kettle, at least one group of separating components for dynamically filtering the mixed liquid are arranged in the washing and separating integrated kettle, and each separating component comprises a hollow rotating shaft rotatably arranged on the kettle and a plurality of hollow separating membranes arranged on the hollow rotating shaft at intervals; the separation membrane can enable liquid to penetrate through the surface to enter the inner cavity, the inner cavity of the separation membrane is communicated with the hollow rotating shaft, and a liquid outlet of the hollow rotating shaft is communicated with the reaction liquid recovery unit; the washing and separating integrated kettle is communicated with a washing solvent inlet pipe and a wet material outlet pipe, a liquid outlet of the hollow rotating shaft is further communicated with a washing liquid recycling unit, and the lithium iron phosphate battery positive electrode material with excellent electrochemical performance can be prepared by adopting the device.

The invention provides a method for preparing neutral polysaccharide from syringa pubescens turcz. An ultrasonic extraction method provided by the invention has the characteristics of high efficiency,simplicity and convenience; a trichloroacetic acid method is short in deproteinization time, small in solvent amount, simple and feasible and high in protection removal rate; a resin method is high in decolorizing efficiency and low in cost and resin can be repeatedly used; DEAE (diethyl-aminoethanol)-cellulose has a large adsorption capacity and good stability so that the DEAE-cellulose is especially suitable for separating the neutral polysaccharide. The method for preparing the neutral polysaccharide from the syringa pubescens turcz, provided by the invention, is scientific, reasonable andfeasible; the neutral polysaccharide prepared by the invention can be further developed into an antioxidant or a food additive and the like and is suitable for being popularized and applied in a large range.