95results about How to "Overcoming separation" patented technology

An accurate calibration method of micro inertia measuring unit by decoupling erection error angle (EEA)with scale factor includes setting up MIMU integral error model and separating couple between EEA of accelerometer and gyroscope and scale factor ,using position error canceling method to calculate out and to separate out scale factor and EEA of accelerometer as well as using least square method and iteration method to calculate out EEA of gyroscope and its relative error items in 10 position static calibration test and in 3 direction positive and negative rate test ,then using interpolation method to calculate out scale factor of gyroscope .

The invention relates to a titanium-silicon molecular sieve TS-1 catalyst for catalyzing ketone oximation reaction. In order to solve the problems of small particles, difficult separation and reutilization, high synthesis cost, strict and complex requirements in the process of gluing, poor repeatability and stability and the like in the prior art, the invention provides a new titanium-silicon molecular sieve TS-1 catalyst for the catalyzing ketone oximation reaction, which is prepared from the following steps: mixing the titanium-silicon molecular sieve TS-1 with one or more solutions of organic amine, ammonium salt, ammonia water and urea, carrying out crystallization again under the self-generating hydro-thermal pressure, and filtering, washing, drying and roasting to obtain the product. The prepared titanium-silicon molecular sieve TS-1 catalyst has large particles and easy separation and recovery after reaction, can improve the reutilization ratio, is especially suitable for ketone oximation reaction using hydrogen peroxide as an oxidizing agent, and can not produce byproducts, thereby protecting the environment and being beneficial to industrial application.

The invention provides a magnetic mesoporous silica gel material extracting agent used for enriching and/or separating trace organic pollutants in an environment water sample, and a preparation method thereof. A core of the extracting agent provided by the invention is a silicon gel microsphere (i.e. magnetic silicon gel microsphere) wrapped with a plurality of Fe3O4 magnetic nano particles, and a shell of the extracting agent is a mesoporous silicon gel shell layer with inner and outer surfaces modified by C18 silanization. The extracting agent integrates huge special surface area, excellent extracting capacity and ultrahigh extracting volume of a mesoporous material, magnetic separating capacity of a magnetic material, strong extracting capacity of C18 groups and special volume exclusion function of a vertical channel of the mesoporous material. In addition, the extracting agent provided by the invention has the advantages of high extracting efficiency, low preparation cost and simple preparation method, and is very suitable for preprocessing samples of the trace organic pollutants in a bulk-mass water sample.

The invention relates to a method for separating zinc and indium and iron from indium-enriched high-iron high-zinc calcine through reduction-magnetic separation, belonging to the technical field of mineral processing. The invention is characterized in that the method adopts the technical means that mineral dressing is combined with smelting and performs smelting firstly and mineral dressing secondly; and the method is as follows: the waste heat of the indium-enriched high-iron zinc calcine obtained through fluidized roasting is utilized, the indium-enriched high-iron zinc calcine is introduced to perform low-temperature weak reduction treatment at below 570 DEG C and ensure that zinc ferrite is decomposed and reduced to ZnO, Fe3O4 and iron, the reduced calcine is levigated to prepare slurry, and zinc and indium and iron is separated through wet-type magnetic separation to obtain iron ore concentrates and indium-enriched zinc- enriched ore concentrates. The method has low energy consumption and low dosage of a reducing agent, is simple in operation, easy in control and high in metal recovery rate. Therefore, the indium embedded and distributed in zinc ferrite can be released, the loss caused by the high temperature volatilization of indium can be avoided, and the zinc and indium and iron of the indium-enriched high-iron high-zinc calcine can be separated in an ore dressing manner before leaching.

The invention relates to a device and a process for preparing struvite crystals from nitrogen and phosphorus in sewage. The device comprises a reactor (5), a pH (potential of Hydrogen) controller (25), a pH regulating pump (24), an alkali liquor tank (23), a nitrogen and phosphorus containing waste water tank (22) and a secondary sedimentation tank (19), wherein the reactor (5) is composed of a reactor feed pipe (9), a reactor crystal collecting pipe (8), a reactor growth tube (3) and a reactor sediment tube (2) from bottom to top. The process comprises the steps of pumping nitrogen and phosphorus containing wastewater into the reactor (5) and pumping a magnesium chloride solution into the reactor (5) to ensure that the molar ratio of NH3-N to PO43-P to Mg <2+> in the reactor (5) is (1:1:1)-(1:1:1.3); controlling the reflux ratio between 14 and 28 and the pH equal to 6.4-9.2; and forming the struvite crystals in the reactor (5) by using the nitrogen, phosphorus and magnesium containing solution. The device disclosed by the invention has the advantages of simple structure and small floor space, is simple and easy to operate and difficult to scale, can be widely applied to preparation of the struvite crystals from the nitrogen and phosphorus containing wastewater such as coking wastewater, pig manure wastewater or sludge fermentation liquor, and is capable of realizing the resource recycling of nitrogen and phosphorus.

The invention relates to a preparation method for a phase change energy storage material in the field chemistry and chemical engineering. The method comprises the following steps: (1) the phase change energy storage material comprises the following materials in percentage by weight: 3-80% of inorganic salt, 2-30% of emulsifying agent, 2-5% of auxiliary emulsifying agent, 3-80% of paraffins and 1-35% of water; (2) adding the inorganic salt in the water, and heating the water to obtain an inorganic salt mixture water solution; (3) mixing and heating the emulsifying agent and the auxiliary emulsifying agent; (4) adding the paraffins to the mixture of the emulsifying agent and the auxiliary emulsifying agent, and heating the mixture; (5) adding the inorganic salt mixture water solution to the paraffins phase change material in the step (4), and uniformly stirring; and (6) cooling the emulsifying liquid in the step (5) so as to obtain the target product. According to the preparation method, the inorganic phase material is compounded with the paraffins by the emulsifying way so as to obtain cross phase change material, and therefore the defects that the inorganic phase change energy storage material is excessively cold and is separated, and the organic phase change material have smaller heat conductivity coefficient, can be solved. The preparation method is applicable to the fields such as the house constant temperature field, the solar water heater field, the heat accumulation and electronic constant temperature field, etc.

The invention discloses a self-cleaning superhard polysilazane hydrophobic coating and a preparation and use method thereof, and belongs to the technical field of super-hydrophobic coatings. The self-cleaning superhard polysilazane hydrophobic coating is prepared from the following components in parts by weight: 5 to 25 parts of organic-inorganic hybridized polysilazane, 15 to 30 parts of hydrophobic acrylate resin, 5 to 15 parts of nanometer silicon dixoide and 40 to 250 parts of organic solvent. The self-cleaning superhard polysilazane hydrophobic coating has the advantages that the excellent superhard, super-hydrophobic, scratch-resistant, abrasion-resistant and high-adhesion properties of a coating are realized; the defects of easiness in cracks, voids and the like in the inorganic polysilazane coating along with the increase of coating thickness are overcome; the problem of low hardness of the organic polysilazane is solved; the coating has the advantages that the hardness is high, the adhesion force is high, the easiness in falling and cracking of the coating is avoided, and the abrasion-resistant and scratch-resistant properties of the coating are ensured; the preparation technology is simple, the implementing is easy, and the preparation technology is suitable for widely popularized and applied.

The invention discloses a preparation method of a Ni-based catalyst modified by an aid Pt supported by multi-wall carbon nanotubes as a carrier and application. The preparation method comprises the following steps: firstly, performing acid modification on multi-wall carbon nanotubes by using nitro-sulfuric acid; by taking the multi-wall carbon nanotubes as a carrier, putting precursor salts of platinum and nickel according to the multi-wall carbon nanotubes to hexachloroplatinic acid hexahydrate and nickel nitrate hexahydrate according to a mass ratio of (5-10):(0.1-0.5):(5-10); further addingdeionized water, performing ultrasonic stirring, drying, and performing roasting and reduction, thereby finally obtaining an expected catalyst Pt-Ni/MWCNT. The catalyst prepared by using the method is low in cost, economic and effective, good in universality, good in environmental-friendliness, free of equipment corrosion and good in circulation property, and is relatively high in activity and relatively high in p-aminophenol selectivity under a relative gentle reaction condition in a process that p-aminophenol is prepared from nitrobenzene through one-step hydrogenation rearrangement, the production conditions can be improved, the production cost is reduced, and the product quality is improved.

The invention discloses a digital imaging acquisition system for aggregate grading detection. The system consists of an aggregate sampling device, an image acquiring device, an optical processing optimizer and communication and storage equipment, wherein the aggregate sampling device comprises a material dividing plate, a distance adjusting rod and an angle adjusting rod; the image acquiring device comprises an infrared laser, a linear array camera and an image acquiring card; the optical processing optimizer comprises a filter device and a diffuse coating layer; and the communication and storage equipment comprises a data line and a computer. A digital imaging acquisition method for aggregate grading detection comprises the following steps of: setting the aggregate sampling device; setting the image acquiring device; setting the communication and storage equipment; acquiring an image of a sampled aggregate; and transmitting and storing the image. An aggregate stream is sampled and acquired by arranging the material dividing plate, so the problem that the image of a falling stream of the aggregate must be completely acquired is solved and the defects of poor quality of the acquired image, difficult separation of particles and a large amount of processing data are overcome.

The invention relates to a general partition wall vibrating process and device for recovering volatile organic matters. The process comprises the following steps of: (1) adsorbing; (2) desorbing; and (3) cooling, condensing and recovering. An adsorption-desorption device comprises a tank body or a tower body, and is characterized in that: an external wall heat exchanger is arranged on the adsorption-desorption device; an internal partition wall heat exchanger is arranged inside the adsorption-desorption device; and the bottom of the tank body or the tower body is provided with a vibrator by connecting. The invention has the advantages that: (1) the adsorption and desorption processes are efficiently and safely finished; (2) the defects of difficulty in separating during recovery of VOCs (Volatile Organic Compounds) with TSA (Temperature Swing Adsorption), shorter service life and lower efficiency of an adsorption agent, and the like are overcome, the recovered VOCs have high purities, and the consumption of a cooling agent is lowered; and (3) the process and the device are suitable for recovering organic matters of low, middle and high boiling points, and particularly, the problem of difficulty in recovering a solvent of a high boiling point is solved.

The invention belongs to the technical field of photocatalysis and sewage processing, and provides a preparation method and application for an efficient and stable foam nickel base photocatalytic material. Foam nickel is taken as a substrate, a crystal layer method is adopted to load a zinc oxide crystal layer, then, a hydrothermal method is utilized to enable a zinc oxide nano array along the zinc oxide crystal layer, and silver nanoparticles are deposited on the surface of the zinc oxide nano array by in situ photo-reduction to obtain silver/ zinc oxide nanorod array/ foam nickel self-supporting materials. The related preparation method is simple. The zinc oxide nanorod array is directly loaded to the surface of the foam nickel, and the surface stability of the material is improved; according to a silver/ zinc oxide nanorod array/ foam nickel ternary complex structure, the adsorption and the utilization of light are enhanced, meanwhile, electrons and holes are accelerated to separate, and photocatalysis activity is improved; the self-supporting structure can be used for overcoming the defects of separation recovery, binding agent coating, big possibility of agglomeration and thelike of powdery catalyst. The porous structure filtering performance of the photocatalytic material is used for cooperating with photocatalytic degradation to further improve the degradation of dye and antibiotic waste water.

The invention provides a method for purifying tiacumicin B by high performance liquid chromatography, wherein in the method, Uni30BPC monodisperse polymer microspheres are used as fillers for performing column chromatography in a purification and chromatography column. The invention provides a method which is better in separation effect for tiacumicin B, wherein a novel medium which is high in separation factor and column efficiency is adopted, thus overcoming the shortages of low separation factor and bad column efficiency existing in the prior art, having a good removal effect for various impurities in tiacumicin B, and being high in preparation purity and recovery rate.

The invention relates to a self-propelled complex-finger type cotton picker, belonging to the technical field of agricultural machinery. The self-propelled complex-finger type cotton picker comprises a cotton boll picking platform, a wind power conveying device, a cotton boll separating device, an impurity removing device and a cotton boll collecting box; the cotton boll picking platform is provided with a cotton boll picking finger rod row and a seed cotton delivery outlet; the delivery inlet of the wind power conveying device is in butt joint with the seed cotton delivery outlet of the cotton boll picking platform and is connected with the inlet of the cotton boll separating device; the outlet of the cotton boll separating device is connected with the cotton boll collecting box through the impurity removing device; the cotton boll separating device comprises a separating box; a spike roller is arranged above the bottom of a hopper of the separating box; a direct-current channel is formed above the spike roller; the joint of the inlet of the cotton boll separating device and the hopper is provided with a cotton pressing brush; a grille plate which extends to the outlet of the cotton boll separating device is arranged below the spike roller; and the bottom of the hopper is provided with the cotton boll collecting box through a wind closing device. The self-propelled complex-finger type cotton picker effectively overcomes the defects of non-thorough cotton boll separating and easy blocking, prevents the cotton boll from entering the impurity removing device to cause cotton dying and damping, reduces the impurity rate of the picked cotton and is beneficial to improving the grade of the cotton.

The invention provides a continuous production process for ultra-pure hydrogen peroxide, comprising the following steps: mixing the industrial hydrogen peroxide material with the modified active carbon; then classifying filter by microfiltration membrane and ultrafiltration membrane in sequence; the filtrate is pumped into the distillation column formed by a plurality of columns connected in series; adding metal ion complexing agent into the primary column; performing reverse osmosis on the semi-finished products out of the column before filtering by nanofiltration membrane to get ultra-pure hydrogen peroxide products. The device comprises the following parts: a raw material chute, an active carbon pre-mixer, a microfiltration and ultrafiltration filter, a distillation column formed by a plurality of columns connected in series, a reverse osmosis device, a nanofilter, a finished product receiver, a pump and a shaft; wherein, the raw material chute outlet is connected with the active carbon pre-mixer inlet; the microfiltration and ultrafiltration filter outlet is connected with the pump, the outlet of which is connected with the inlet of the distillation column formed by a plurality of columns connected in series; the outlet of the distillation column formed by a plurality of columns connected in series is connected with the inlet of the reverse osmosis device, the outlet of which is connected with the shaft; the outlet of the shaft is connected with the inlet of the nanofilter, the outlet of which is connected with the finished product receiver.

The invention discloses a pretreatment system and method for raw anaerobic fermentation materials. The pretreatment system comprises a pretreatment pool filled with raw anaerobic fermentation materials, wherein dilution, stirring and settlement layering of the raw anaerobic fermentation materials are carried out in the pretreatment pool so as to enable the materials to be divided into a top layerof scum silica frost, a middle layer of nutriments and a bottom layer of sand settling; a grating ditch communicating with the pretreatment pool, wherein the scum silica frost in the top layer and the nutriments in the middle layer of the pretreatment pool pass through the grating ditch and scum silica frost is filtered; and a sand-water separator with one end extending into the bottom of the pretreatment pool and the other end extending out of the pretreatment pool, wherein the sand-water separator sucks in the sand settling in the bottom layer and separates sand from water. According to theinvention, the problems in existing anaerobic fermentation technology for the production of biogas that raw materials are difficult to purify and subsequent processing has great load are overcome; utilization rate of the raw materials is enhanced; and running cost is reduced.

The invention relates to a solenoid directional valve and a push rod and armature structure thereof. The push rod and armature structure comprises a push rod and an armature, wherein a valve element connecting section is arranged at one end of the push rod; an armature connecting section is arranged at the other end of the push rod; and a push rod radial pin hole is formed in the valve element connecting section of the push rod. The push rod and armature structure is characterized in that the armature connecting section of the push rod is provided with left-hand threads, a left-hand threaded hole is formed in one end of the armature, and the left-hand threads of the armature connecting section of the push rod is in left-hand thread connection with the left-hand threaded hole in one end of the armature. By the push rod and armature structure, the push rod is effectively prevented against being separated from the armature, the long-time existing circumstance that the push rod and the armature in the prior art are separated from each other due to counterclockwise rotation of the push rod is avoided, furthermore, the long-time existing circumstance of cracking caused by the reason that the push rod and the armature are welded integrally in the prior art is avoided, and therefore, work reliability is greatly improved.

The invention discloses a technology for producing ultra-clean high-purity hydrochloric acid. The technology comprises 1, raw material selection comprising selecting a hydrochloric acid solution having a concentration of 36 to 38% as a raw material, 2, dilution comprising diluting the raw material with deionized water until the concentration is 35%, 3, rectification comprising adding the diluted raw material into an internal heating-type rectification device, feeding cooling water into a hydrochloric acid absorption device, and starting an internal heating device to heat the raw material, 4, absorption comprising after the raw material is heated and evaporated into hydrochloric acid gas and vapor, absorbing the hydrochloric acid gas and the vapor fed into the hydrochloric acid absorption device by pipes to obtain a hydrochloric acid solution, continuously adding the raw material into the rectification device, and simultaneously, opening a reject valve, 5, blending comprising pumping the hydrochloric acid solution to a blending tank, and carrying out blending in the blending tank, wherein a hydrochloric acid content is controlled to about 37%, and 6, filtering and split charging comprising filtering the blended hydrochloric acid solution by a filter to obtain a finished hydrochloric acid solution and carrying out split charging. The technology has the advantages of strong continuity, high purification degree, and low impurity content.

The invention belongs to the technical field of inorganic functional material preparation, and particularly relates to a TiO2 hollow microsphere synthesizing technology by using gel spherulite as precursor. A hydrolyzing agent complexed tetra-n-butyl titanate is dispersed into a water solution of starch, and is subjected to hydrothermal treatment at 150 DEG C, the starch reacts with tetra-n-butyl titanate to form a gel sphere with a three-dimensional network structure; a hollow structure is formed in the gel sphere in the mineralizing and carbonizing processes due to volume shrinkage, and the carbon ingredient remained in the gel sphere is removed by a thermal treatment; and the substantial part of the hollow TiO2 microsphere is made of a porous material formed by nano-crystalline grains (8-10nm) and nano-scale passages. According to the synthesized TiO2 spheres, the specific surface area is 230m<2>/g, the porous volume is 0.34cm<3>/g, and the average pore diameter is 6.6nm. By adopting the synthesizing process, water is used as a dispersing medium, and starch participates in the reaction to form the gel spheres, and the process is environment-friendly.

The invention discloses a preparation method of trifluoroethylene, which comprises the following steps: mixing 1,1,1,2-tetrafluoroethane with octafluorocyclobutane according to the molar ratio of 1:1-9 under the action of a cracking catalyst for reaction, controlling the reaction temperature to be 350-550 DEG C, the reaction airspeed to be 500-2000 hours-1 and the reaction pressure to be normal pressure and obtaining the trifluoroethylene after cracking gas generated by reaction is quenched, washed, alkali-cleaned, dried, compressed, rectified and purified. The preparation method has the advantages of low reaction temperature, simplicity in separation and purification and low cost, the maximum conversion rate of the 1,1,1,2-tetrafluoroethane is 56.3 percent, and the maximum selectivity of the trifluoroethylene is 97.5 percent.

A hydrogen reducing process for separating Rh from Ir solution includes loading the Rh contanied Ir solution into reactor, heating to a certain temp udner ordinary pressure, introducing H2 to it, and hydrogen reducing reaction to reduce Rh into solid metal. Its advantages are high purity (99% for Rh and 99.99% for Ir), short time, and no pollution.

The present invention relates to a bovine rotavirus recombinant protein antigen and a preparation method thereof, in particular to a bovine rotavirus recombinant VP6 protein antigen and a preparation method thereof. The bovine rotavirus recombinant VP6 protein antigen resolves the following problems: at present, the method for diagnosing bovine rotavirus diarrhea needs a great deal of time and labor and cannot rapidly diagnose bovine rotavirus diarrhea; the process is complex; and expensive molecular biology reagents and corresponding instruments need to be used. The bovine rotavirus recombinant VP6 protein antigen is expressed by colibacillus converted by recombinant vector plasmids. The preparation method includes the following steps: (1) RCR amplification of VP6 gene; (2) acquisition of recombinant plasmids; (3) acquisition of recombinant bacteria; (4) inducible expression of recombinant VP6 protein antigen; (5) purification. The present invention provides a diagnosis antigen for the serodiagnosis of bovine rotavirus diarrhea, and the diagnosis antigen has extremely strong specificity and accuracy. The diagnosis method, which uses the bovine rotavirus recombinant VP6 protein antigen and adopts fluorescent antibody test and serological tests such as enzyme linked immunosorbent assay, has the advantages of time and labor saving and rapidness and does not need expensive reagents and instruments.

The invention provides a method for modifying a polyamide reverse osmosis composite membrane by the use of silicate ester. The preparation method comprises the following steps: firstly pouring an aqueous phase solution containing an aromatic polyamine compound onto the surface of a polysulfone ultrafilter membrane support layer; draining and then immersing the membrane surface with an organic liquid phase containing a proper amount of aromatic acyl chloride to contact with a water phase, wherein the organic phase or the water phase contains a proper amount of silicate ester; carrying out interfacial polymerization with the assistance of silicate ester so as to obtain a polyamide active layer; and carrying out heat treatment so as to obtain a modified polyamide reverse osmosis composite membrane. On one hand, the silicate ester is used as a cosolvent during the interfacial polymerization process so as to adjust the membrane structure; on the other hand, the silicate ester is used as a silicon source and undergoes hydrolytic polymerization during the interfacial polymerization and post-processing to generate silica nanoparticles which are doped in a polyamide separating layer. The silicate ester-assisted interfacial polymerization method combines advantages of cosolvent and inorganic nanoparticles. Through silicate ester-assisted interfacial polymerization, the reverse osmosis composite membrane with high water flux and high salt rejection is prepared.

The invention discloses a water removing system for gas-water-containing crude oil and an application method of the system. With the adoption of the system and the application method, water in an oil and gas and water system can be removed and reach the standard for discharge, energy consumption of follow-up pipeline transportation and equipment abrasion are reduced, and treatment pressure of the existing oil-gas-water separation device is reduced. The system comprises a bifurcation pipeline, a buffer tank and a columnar swirler, wherein the bifurcation pipeline comprises an upper inclined pipe, a lower horizontal pipe and a plurality of vertical pipes, and is used for removing gas and a part of oil from coming liquid; the buffer tank operates by controlling an oil-water interface in a tank body; and the columnar swirler is used for treating liquid at a lower outlet of the buffer tank to allow the liquid to reach the standard for discharge. With the adoption of the system and the application method, as several principles of gravity, expansion, centrifugation and the like are combined, the water in the gas-water-containing crude oil is treated directly; defects that the existing water treatment system is narrow in application scope and low in treatment efficiency are overcome; and treatment procedures and equipment weight are reduced. The water removing system is applicable to onshore oil fields and offshore oil fields, and is very good in industrial application prospect.

The invention discloses a method for extracting gold from alkaline cyanide solution. Porous graphitized carbon black and surfactant acetone solution with the concentration of 10 percent are evaporated in a water bath by stirring, thereby obtaining a graphitized carbon black packing with the attached surfactant. The packing is arranged in a solid-phase extraction column for compaction and washed by dilute sodium hydroxide with pH of 9.4-13 for standby. Gold-containing material liquid passes through the extraction column at the flow rate of 10-100mL/min for extraction and enrichment, then eluate is further used for reverse elution, and the gold in the eluate is finally recovered by the electric deposition method. The method has small environmental pollution, the operable pH range is very wide, the one-time extraction rate of the gold exceeds 96.5 percent, the enrichment times are more than 250 times, and the extraction capacity of the material to the gold is greater than 29mg/g, thereby having a good industrial application prospect.

The present invention relates to the synthesis process of different kinds of 2-acyl-4-alkyl phenol, which is the important intermediate of metal extractant 5-alkyl-2-hydroxyalkyl benzopheonone oxime. Through a two-step reaction under relatively mild condition, the present invention can obtain the target product in high yield and high selectivity, and the solvent, the reaction produced halohydrocarbon and the catalyst aqua may be reused without exhaust. The synthesis process has industrial production foreground obviously.

The invention discloses a method for preparing (methyl) acrylic acid-3,4-epoxycyclohexyl methyl ester by a microchannel reactor. The method is characterized in that firstly, 3-cyclohexene-1-methanol and (methyl)acryloyl chloride are used as raw materials; esterification reaction is performed in the microchannel reactor to prepare an intermediate of (methyl)acrylic acid-3-cyclohexenyl methyl ester;then, peroxyacetic acid is used as an oxidizing agent; chlorohydrocarbon is used as a reaction medium; selective epoxidation reaction is performed in the microchannel reactor to prepare a target product. The esterification reaction temperature is low; the side reactions are few; the efficiency is high; the aftertreatment is simple; an in-situ method is used; peroxyacetic acid is prepared; meanwhile, olefin epoxidation reaction is performed; the technological process is easy to operate; the reaction yield is high; the product purity is high; the operation of the product separation process is simple; the method is suitable for continuous production; when a curing resin composition prepared by the product is used, a good cured matter with high sealing performance and chemical resistant performance on a base material can be obtained, and can be suitable for being used in the field of electronic materials.

The invention provides a method for extracting a natural gas hydrate by using a gas mixture of CO2 and H2. The method comprises the steps of: extracting, through a depressurized way, free gases in a natural gas hydrate mineral deposit until a pressure of the natural gas hydrate mineral deposit reduces to a balance pressure or to be 5%-10% greater than the balance pressure corresponding to a temperature of the hydrate mineral deposit; injecting a gas mixture A of CO2 and H2 into a natural gas hydrate settled layer to decompose the natural gas hydrate, replacing the gas mixture A so as to obtain CH4 and water; extracting, through the depressurized way, a gas mixture B formed by the CH4 released by replacement and residual gas mixture A; reforming the gas mixture B through water steam so as to obtain a gas mixture C of CO2 and H2; separating the gas mixture C to obtain hydrogen, and a gas mixture D of the CO2 and H4; circularly injecting the gas mixture D into the natural gas hydrate settled layer, continuing excavating the natural gas hydrate. The method for excavating the natural gas hydrate by means of depressurization and replacement disclosed by the invention can not only improve an excavation efficiency of natural gas, but also overcome shortages of a low molar fraction and hard separation of methane in extracted product, so that an extraction cost is reduced.

The invention discloses a synthesis method of solid waste multi-stage hole block body ECR-1 zeolite. A water solution of silica fume, metakaolin, mordenite crystal seeds and sodium hydroxide is put into a stirring device to be stirred to form slurry; through mold shaping, caring and demolding, a block body is obtained; then, the block body is put into a reaction kettle to be crystallized so as toobtain a multi-stage hole block body ECR-1 zeolite molecular sieve, wherein the mass ratio of the silica fume to the metakaolin to the mordenite crystal seeds to the solid sodium hydroxide to deionized water is 2.3 to 1 to 0.2 to 0.5 to 1.57. In the preparation process, the addition of a template agent is not needed; high energy consumption and environment pollution caused by high-temperature roasting decomposition of the organic template agent are avoided. Meanwhile, the synthesized block body molecular sieve overcomes various defects of filtering, separation and the like of powder particlesin the application process; the synthesis process technology is simple; the cost is low; the crystallization time is greatly shortened; the high-added value utilization of industrial solid waste and natural ore can be realized.

The invention provides a method for preparing a large batch of binary superlattice emulsion balls. The method includes: by pyrolysis, preparing a series of monodisperse and size-adjustable inorganic colloid nanocrystalline particles with organic molecular ligands on surfaces, and by an emulsion assembling method, directly preparing a large batch of the binary superlattice emulsion balls which areordered in height and are provided with single structures. The method is simple and high in repeatability, conditions for the method are easy to control, large-scale production can be realized, the problem of multiphase coexistence during binary superlattice preparation can be solved effectively, and the method also can be applied to assemblies of various inorganic nanometer particles and is highin universality. The prepared binary superlattice material is widely applied to energy storage and transformation, biological marking and imaging, photoelectric devices and the like.

The invention provides a process method for preparing ethyl tert-butyl ether. The process method comprises the following steps of: taking isobutene and ethanol as raw materials, and using a heteropoly acid/aluminum-based complex oxide catalyst, wherein the heteropoly acid/aluminum-based complex oxide catalyst takes a complex oxide as a carrier and takes heteropoly acid as an active component, the complex oxide is one or more of aluminum-based complex oxides in MgO-Al2O3, TiO2-Al2O3 and ZrO2-Al2O3, and the heteropoly acid is one or more of phosphotungstic acid, silicotungstic acid, arsenotungstic acid, germanotungtic acid, phosphomolybdic acid, silicomolybdic acid, arsenomolybdic acid, germanomolybdic acid and the like. According to the process method provided by the invention, the catalyst adopting the aluminum-based complex oxide to load the heteropoly acid is adopted, so that the shortcomings of inactivation of the catalyst and reduced conversion rate, which are caused by easiness in damaging the Keggin structure of the heteropoly acid of the heteropoly acid catalyst, easiness in loss of acid amount and difficulty in separation, can be overcome.