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37results about How to "Play a role in enrichment" patented technology
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Sinter-smoke circulation collected desulfurizing method and apparatus
InactiveCN101024143AEmission reductionReduce effluxDispersed particle separationFurnace typesFlue gasEnrichment methods
The invention discloses a sintering flue gas desulfurization cycle enrichment methods and device, the described method from the sintering machine take part gas return to the top of sintering machine sealed enclosures within cycle, while complementing sintering machine burning need oxygen, the remaining part of the flue gas discharge after desulfurization. In devices, including dedusting device of flue gases between the chimney and flue, in the road before the desulfurization setup a branch pipeline to connect sintering machine sealed enclosures, in the branches of pipe setup cycle fan and supplement device. This invention due to sintered exhaust gas partly return to the seal trolley of sintering machine to reduce the displacement of gas, thereby reducing the total of dust and exhaust gas, while the SO2 of the sintering process play a enrichment role, to increase desulfurization efficiency, and reduce release total of burning exhaust gas, reducing the processing load of desulfurization device.
Owner:ZHONGYE-CHANGTIAN INT ENG CO LTD
Hollow titanium dioxide microsphere based on gel sphere precursor and preparation method of hollow titanium dioxide microsphere
ActiveCN104310466AReduce usageReduce manufacturing costPhysical/chemical process catalystsTitanium dioxideMicrosphereSpherulite
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.
Owner:佛山市卓尔特电器有限公司
Method of performing oxidation treatment on waste lithium ion batteries
InactiveCN109852807ASolve lossAddress effectivenessWaste accumulators reclaimingProcess efficiency improvementSlurryLithium-ion battery
The invention relates to a method of performing oxidation treatment on waste lithium ion batteries, and belongs to the technical field of environment. The method comprises the following steps of adding waste lithium ion battery powder into an acidic water solution to obtain mixed slurry; inputting oxidizing gas to the mixed slurry with an aerating device, and performing oxidizing leaching; after areaction is completed, regulating the pH of the reaction slurry with an acid regulating reagent to remove few valuable metal ions in lixivium, and then performing solid-liquid separation to obtain lithium-enriched purifying liquid and reaction tailings; and then performing lithium sinking and solid-liquid separation on the purifying liquid so as to obtain lithium carbonate products or lithium phosphate products. Through the adoption of the method disclosed by the invention, through an aeration means, under a milder condition, high-selectivity extraction of lithium elements in the waste lithium ion batteries is realized; the reaction process is green and clean, simple and easy to operate, and wide in application range; and the lithium extraction rate is 85% or above, and the extracting selectivity is 95% or above, so that the problem that in a conventional processing method, lithium resources cannot be economically and effectively recovered can be solved from the source.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Refining method of traditional Chinese medicine composition water extract containing ginseng
ActiveCN101780215APlay a role in enrichmentReduce the amount of ethanolMetabolism disorderPlant ingredientsDiabetes mellitusCeramic membrane
The invention discloses a refining method of a traditional Chinese medicine composition water extract. The traditional Chinese medicine composition comprises ginseng, rhizoma polygonati, rhizoma atractylodis, radix sophorae flavescentis, Tuckahoe, ophiopogon root, prepared Polygonum multiflorum, rehmanniae, dogwood, rhizoma coptidis, eupatorium and the like, and can treat diabetes mellitus. The method carries out refining on the traditional Chinese medicine composition by filtering through an inorganic ceramic membrane; the method has high transfer rate of the effective components which can be industrially produced; the feed liquid has simple process; and the inorganic ceramic membrane is convenient to clean and can be repeatedly regenerated. The invention relates to a refining method of the traditional Chinese medicine composition water extract containing the ginseng.
Owner:HEBEI YILING MEDICINE INST
Heavy metal activator and application thereof in soil joint restoration
InactiveCN108817069AMeet growth needsReduce heavy metal contentBio-organic fraction processingAgriculture tools and machinesOrganic acidFiltration
The invention provides a heavy metal activator and application thereof in soil joint restoration. The activator preparation comprises the following steps that (1) straws are crushed and sieved, the crushed straws are added into an alkaline solution, a heating reacting is conducted, filtering is conducted after finishing the heating reaction, the filtration residue is taken and washed with water, washing is repeated until the eluent is neutral, and drying is conducted to obtain the lignin-removed straws; (2) urea is added into the lignin-removed straws, composting fermentation is conducted, rapeseed meal is added after the fermentation is thoroughly decomposed, a functional microbial agent is added, secondary fermentation is conducted after uniform stirring, and then after the second fermentation, the straw bio-organic fertilizer is obtained; and (3) organic acid is added into the straw bio-organic fertilizer, and uniform mixing is conducted to obtain the heavy metal activator. According to the application, through crop-rotation combined planting of soybeans and oilseed rape, the heavy metal is activated by the heavy metal activator, so that heavy metal in the soil can be convertedinto an effective state as much as possible to realize the continuous absorption of heavy metal, the joint restoration efficiency is improved, and the easy-to-implement and efficient combined restoration method is also provided for restoring heavy metal contaminated farmland soil.
Owner:湖南泰谷生态工程有限公司
Method for detecting lime substances in flour with near-infrared micro-imaging technology
InactiveCN102243171AStrong penetrating powerThe detection signal is obviousColor/spectral properties measurementsInfraredMicro imaging
The invention provides a method for detecting lime substances in flour with a near-infrared micro-imaging technology. The method comprises the steps of: collecting a near-infrared micro-image of a flour sample; according to the near infrared spectrum characteristics of lime substances and pure flour, subjecting the near-infrared micro-image of the flour sample to an imaging analysis. Without any complex pretreatment in the whole process, the detection of the invention has simple, rapid and pollution-free steps. Compared with traditional methods, the method provided in the invention has more obvious additive detection signals, thus being more conducive to the detection of very small amounts of additives. As near-infrared lights are stronger than mid-infrared lights in terms of penetrability in substances, so they can adapt to rough surfaces. Besides, near-infrared lights not only can collect the information of the sample surface, but also can go deep into the sample to collect information. Therefore, the near-infrared micro-imaging technology is very suitable for detection of lime substances in flour, thus providing a new method for rapid quality safety screening of market flour.
Owner:BEIJING RES CENT FOR AGRI STANDARDS & TESTING
Refining method of traditional Chinese medicine composition water extract liquid containing fructus forsythiae
ActiveCN101797299AGet rid of evilRelieve symptomsAntiviralsAluminium/calcium/magnesium active ingredientsForsythia suspensaEphedra herb
The invention discloses a refining method of traditional Chinese medicine composition extract liquid. The traditional Chinese medicine composition comprises fructus forsythiae, honeysuckle, ephedra herb, bitter apricot seed and the like, and can be used for treating flu. The method adopts an inorganic ceramic membrane for filtering to refine the traditional Chinese medicine composition extract liquid. The method is high in active ingredient transfer rate, can be used for industrial production, has simple material liquid treatment, is convenient for cleaning the inorganic ceramic membrane, andcan be regenerated repeatedly.
Owner:BEIJING YILING PHARMA
Method for determining PEG content in biological sample
ActiveCN104931637AIncrease abundanceSolving Quantitative PuzzlesComponent separationQuantitative determinationMass analyzer
The invention relates to a method for determining PEG content in a biological sample. The method includes: liquid chromatography-time of flight mass spectroscopy is used for determining the PEG content, a standard curve is produced, and the standard curve is used to calculate the PEG concentration in the to-be-determined sample. The mass spectrum condition of the method is based on the triple tandem mass spectrum technology. The mass spectrum part is characterized in that parent ions are not selected in a first mass analyzer Q1, and all charged particles enter a second mass analyzer Q2 after passing; collision energy is set in the second mass analyzer Q2 to smash the charged particles into fragment ions; stable feature fragment ions are selected in a third mass analyzer which is a time of flight mass analyzer to quantify PEG. The method has the advantages that the method aims at the non-uniqueness of the PEG molecular weight in the biological sample, and the method is simple and practical, accurate and reliable in result, high in sensitivity and good in reproducibility.
Owner:JILIN UNIV
Method for detecting lime-like substance in flour
InactiveCN102243173ASimplify detection stepsThe test results are accurate and reliableColor/spectral properties measurementsImage analysisMid infrared
The invention relates to the field of foodstuff safety, and discloses a method for detecting lime-like substances in flour. The invention comprises the steps of: collecting microscopic mid-infrared images of flour samples requiring detecting; carrying out image analysis upon the microscopic mid-infrared images of the flour samples according to mid-infrared spectral features of lime-like substances and pure flour; calculating derivative spectrums of the lime-like substances and the pure flour according to the mid-infrared spectrums; and carrying out spectrum enhanced image analysis upon the microscopic mid-infrared images of the flour samples according to the derivative spectral features. According to the method for detecting lime-like substances in flour, complicated pretreatment is not required during a detection process; the detection steps are simple and quick; and detection results are accurate and reliable. Also, a target sample dimension of microscopic mid-infrared imaging reaches a micrometer grade, which is similar to a dimension of lime-like substance particles. Therefore, relative to a small lime-like additive amount, the method contributes to a lime-like substance enriching effect within a dimensional scope, such that the additive is easy to be detected.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
Ecological chain comprehensive treatment method of kitchen waste
InactiveCN110721980APlay a role in enrichmentSite land improvementFeeding-stuffTransportation and packagingEnvironmental engineeringWaste treatment
The invention discloses an ecological chain comprehensive treatment method of kitchen waste, and relates to the field of waste treatment. The method comprises the steps that the kitchen waste is pretreated; the pretreated kitchen waste is digested through multiple kinds of primary organisms; and the kitchen waste and residual kitchen waste obtained after treatment are removed through anaerobic composting. Cockroaches and earthworms exceeding the bearing capacity of the ecological system can be fed to secondary consumers of chickens, toads and the like. Eggs and corpses of chickens and toads can be simply treated, protein bodies can be made, and the method can be used for biological reproduction of carnivorous furbearers.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Wet pre-separation process for copper-containing magnetite ore
PendingCN111841880ATo achieve the technical effect of receivablesAchieve the effect of saving energy and reducing consumptionVortex flow apparatusMagnetic separationIronstoneChalcopyrite
The invention discloses a wet pre-separation process for copper-containing magnetite ore, and belongs to the technical field of ore separation. The method comprises the following steps that raw ore ofthe copper-containing magnetite ore is crushed, crushed products are screened, screened copper-containing magnetite ore particles are subjected to wet magnetic separation, and concentrate products obtained after magnetic separation are fed into a ball mill to be subjected to ball milling; tailings obtained after wet magnetic separation are screened, oversize products obtained after screening aredirectly discharged, the ore grinding amount of follow-up ball milling operation can be reduced, the ore dressing production cost is reduced, loss of the copper element is avoided as much as possible,and the oversize products are sold as building material products to increase benefits; the ball-milled ore discharge and undersize products are fed into a hydrocyclone for grading, and settled sand of the hydrocyclone is returned to the first-section ball mill to form closed-loop ore grinding; overflow products of the hydrocyclone enter subsequent sorting operation to sort magnetite and chalcopyrite, and therefore the technical effect that copper elements should be completely collected is achieved.
Owner:马钢集团设计研究院有限责任公司
Adsorption detection method of hydroxyapatite to metal nickel ions
InactiveCN108444925APlay a role in enrichmentColor/spectral properties measurementsAfter treatmentApatite
The invention relates to the technical field of water body detection and especially relates to an adsorption detection method of hydroxyapatite to metal nickel ions. In the method, a metal ion Ca<2+>in the hydroxyapatite can be substituted by metal ions having similar atomic size in order to generate apatite containing hetero-atoms; when the metal ion is Ni<2+>, the metal ion can replace the Ca<2+> and form bonds with oxygen on the surface of the material, thus forming hydroxyapatite containing nickel. The nickel in the hydroxyapatite, after being dissolved in hydrochloric acid, can be dissolved out. The raw material for enriching the Ni<2+> has extensive sources and low cost, has significant effect of enriching Ni<2+> and is high in recycling efficiency on the Ni<2+> after treatment withhydrochloric acid.
Owner:DALIAN UNIV OF TECH QINGDAO NEW ENERGY MATERIALS TECH RES INST CO LTD
Novel method for purifying and recycling arsenic-containing flue gas by using acidic liquid medium
PendingCN112387096AEfficient reuseFull recoveryCombination devicesGas treatmentArsenic pollutionOxide sulfur
The invention relates to a novel method for purifying and recycling arsenic-containing flue gas by using an acidic liquid medium, belonging to the technical field of heavy metal pollution treatment. According to the invention, water washing in an acid making process is replaced with acid pickling, so heavy metal ions can be effectively enriched, acid recycling is achieved, and the method is suitable for heavy non-ferrous metal smelting flue gas purification and arsenic pollution treatment. After heavy non-ferrous smelting flue gas is subjected to gravity dust collection and electric dust collection, a part of auxiliary additives are added into an acid medium solution containing sulfuric acid to prepare a proper washing solution before the heavy non-ferrous smelting flue gas enters an acidmaking link, the flue gas is subjected to spraying or spray washing, sulfuric acid and heavy metal are recycled through concentration of mixed liquid obtained after washing, and meanwhile, a fluorineand chlorine removing agent is added to remove fluorine and chlorine. The acidic liquid medium is used for replacing water washing to purify SO2 flue gas, so generation of waste acid can be avoided, arsenic and heavy metal elements are effectively recycled, and soluble sulfur oxide in SO2 flue gas is fully utilized and recycled, so the method is of important significance in arsenic pollution treatment in the heavy non-ferrous metal smelting industry.
Owner:CHUXIONG DIANZHONG NON FERROUS METALS LLC +1
Remediation material for reducing migration-state lead ions in soil and preparation method thereof
InactiveCN111662725AIncrease throughputAvoid layer secondary pollutionOrganic fertilisersSoil conditioning compositionsAcetic acidGlycine
The invention relates to a remediation material for reducing migration-state lead ions in soil and a preparation method of the remediation material. The remediation material for reducing the migration-state lead ions in the soil is prepared from polylactic acid, eggshell powder, an SE-10 emulsifier, gingko peel powder, acetic acid, water, thiourea, polyacrylamide, ethylenediamine tetraacetic acid,urea, polyvinyl alcohol, nanocellulose and glycine. The remediation material for reducing the migration-state lead ions in the soil, provided by the invention, has excellent performance of reducing the migration-state lead ions in the soil.
Owner:代彦霞
Blue Dream white liquor aroma component concentrating method
InactiveCN105203379AHigh recovery rateReduce lossesPreparing sample for investigationWater bathsFiltration
The invention provides a Blue Dream white liquor aroma component concentrating method. Blue Dream white liquor is measured and is added into a container, then a saturated salt solution is added, mixing is performed to obtain a solution to be extracted, wherein the volume ratio of the Blue Dream white liquor to the salt solution is 1:3-7; a mixed solution of dichloromethane, diethyl ether and hexane is added into the solution to be extracted, continuous extraction is performed to obtain an upper-layer organic phase, moisture in the organic phase is removed, and then filtration is performed by adopting a filter membrane; the mixed solution obtained after filtration by adopting the filter membrane is added into an impalement type fractionation device, the fractionation device is put into a constant-temperature water bath kettle of 45-55 DEG C to perform impalement type fractionation and concentration, and the mixed solution subjected to impalement type fractionation and concentration is concentrated by using a pressure blowing concentrator to obtain a Blue Dream white liquor aroma component. The Blue Dream white liquor aroma component concentrating method is simple and convenient to operate, capable of saving time and effort and low in cost, can play enrichment and concentration roles on minor components, facilitates qualitative and quantitative analysis on extremely trace amounts of substance, meanwhile effectively reduces loss of volatile components and improves the recovery rate of aroma substance.
Owner:SHANGHAI INST OF TECH
Preparation of high polymer rich in trace amount chloramphenicol
InactiveCN101353440ASimplify preprocessing stepsReduce the introductionComponent separationWater bathsFunctional monomer
The invention relates to a preparation method of a heavy polymer that has rich trace amount chloromycetin. The pore-foaming agent adopts tetrahydrofuran; the functional monomer adopts 4-vinylpyridine; the cross linker adopts ethylene glycol dimethacrylate, wherein, the mol ratio of the functional monomer and the cross linker is 1:2.5 to 3; the 4-vinylpyridine and ethylene glycol dimethacrylate are dissolved in the tetrahydrofuran, mixed evenly and then the evocating agent zaodiisobutyronitrile is added; the heavy polymer that has rich trace amount chloromycetin is then obtained after ultrasonication, deoxidation by nitrogen blowing, thermostatic water bath reaction, Soxhlet extraction and vacuum drying processes. The heavy polymer made by the invention is economical and practical with simple synthesis process, can be applied to pretreatment of chloromycetin detection in food, provides novel rich materials for detection fields and has great utilization value in practice.
Owner:TIANJIN UNIV OF SCI & TECH
Multi-effect sludge drying chamber
InactiveCN108298793AIncrease the drying areaIncrease profitSludge treatment by de-watering/drying/thickeningAutomatic controlSludge
The invention provides a multi-effect sludge drying chamber, and belongs to the technical field of sludge drying. According to the technical scheme, sludge moves downwards along with a conveyor belt in sequence in vertical space and keeps in contact with countercurrent hot air constantly in the process, and accordingly the drying area of the sludge and the use ratio of the space are effectively increased. Meanwhile, exhaust gas waste heat, condensed water heat release and solar radiant heat are combined, the energy consumption level is remarkably reduced. Besides, sludge conveying and air flowwaftage are both completed in a mechanical way, and thus the automation degree is high, and human resources are saved. On that basis, if a detection unit and an electronic control unit are further introduced, automatic control over the device can be implemented. Exhaust gases after treatment are collected collectively, and secondary pollution to the environment is avoided. The multi-effect sludgedrying chamber achieves a good technical effect through novel technical improvement and is reasonable in structure, the scheme adapts to local conditions, and the drying chamber has a wide application prospect.
Owner:SHANDONG BAOTA NEW ENERGY CO LTD
Method for detecting lime substances in flour with near-infrared micro-imaging technology
InactiveCN102243171BStrong penetrating powerThe detection signal is obviousMaterial analysis by optical meansRough surfaceMicro imaging
The invention provides a method for detecting lime substances in flour with a near-infrared micro-imaging technology. The method comprises the steps of: collecting a near-infrared micro-image of a flour sample; according to the near infrared spectrum characteristics of lime substances and pure flour, subjecting the near-infrared micro-image of the flour sample to an imaging analysis. Without any complex pretreatment in the whole process, the detection of the invention has simple, rapid and pollution-free steps. Compared with traditional methods, the method provided in the invention has more obvious additive detection signals, thus being more conducive to the detection of very small amounts of additives. As near-infrared lights are stronger than mid-infrared lights in terms of penetrability in substances, so they can adapt to rough surfaces. Besides, near-infrared lights not only can collect the information of the sample surface, but also can go deep into the sample to collect information. Therefore, the near-infrared micro-imaging technology is very suitable for detection of lime substances in flour, thus providing a new method for rapid quality safety screening of market flour.
Owner:BEIJING RES CENT FOR AGRI STANDARDS & TESTING
Preparation method and application of avocado oil rich in furan lipid unsaponifiable substances
The invention belongs to the technical field of active ingredient extraction, and particularly relates to a preparation method and application of avocado oil rich in furan lipid unsaponifiable substances. The method comprises the steps of distillation, cyclization, saponification, extraction, washing, concentration and the like, and unsaponifiable substances can be effectively extracted by the process. The process method is simple and suitable for industrial popularization and application. The prepared unsaponifiable substances can be used for preparing medicines for treating arthritis, rheumatoid and periodontitis, and has a better effect.
Owner:大连奥川生物科技有限公司
Refine method for polygonum multiflorum water extract
ActiveCN101780152APlay a role in enrichmentReduce the amount of ethanolPlant ingredientsLiver and kidneyCeramic membrane
The invention discloses a refine method for polygonum multiflorum water extract. The polygonum multiflorum has the efficacies of nourishing liver and kidney, benefiting essence and blood, blackening beard and hair and strengthening muscles and bones. The method adopts inorganic ceramic membrane filtration to refine the Polygonum multiflorum water extract, has high transferring efficiency of effective components, can be industrially produced, has simple feed liquid process; and the inorganic ceramic membrane is convenient to clean, and can be recycled.
Owner:HEBEI YILING MEDICINE INST
A combined method for repairing heavy metal-contaminated soil
ActiveCN107138511BRaise the pHEnvironmentally friendlyContaminated soil reclamationPhytoremediationHeavy metals pollution
The invention discloses a method for remediating soil contaminated by heavy metals such as cadmium by combining in-situ leaching, deep-layer fixing and phyto-extracting. According to the method, the heavy metals are leached into a deep layer along with a leaching solution through the in-situ leaching in a surface layer and are fixed in the deep layer, then willow with the heavy metal accumulation function is planted after organic fertilizer is applied, and therefore the residual heavy metals can be further removed, and the soil function can be restored; the heavy metals in a plough layer are leached to the deep layer, the absorption of crops to the heavy metals is reduced, the heavy metals which are leached to the deep layer are fixed, underground water is not polluted, and therefore the residual heavy metals can be further removed through phytoremediation, and the soil function can be restored; an iron-containing compound used in the method does not destroy the soil structure and can serve as a rice field soil conditioner; and compared with the phytoremediation, the method has the advantage that the remediation efficiency can be improved, and compared with leaching remediation, the method has the advantage that the steps of excavating, stirring, separating and the like can be omitted. The invention provides the remediation method. The remediation method has the advantages of being short in time, low in cost and high in efficiency and having a wide application prospect in the field of remediation of a large-scale farmland contaminated by the heavy metals.
Owner:NANJING UNIV
Detection method of trace substance content using micro-nano structure oxide ceramic material
The invention relates to a detection method for trace substance content using a micro-nano structure oxide ceramic material, which belongs to the technical field of spectral analysis, and specifically relates to a detection method for a trace substance content using a micro-nano structure oxide ceramic material. The purpose of the invention is to solve the problems of poor sensitivity, poor repeatability, or high production cost in the existing SERS substrate. Detection method: ①, preparation of silver sol; ②, mixing; ③, determination of Raman shift, sensitivity and standard curve; ④, detection, that is, to complete the detection of trace substance content using micro-nano structure oxide ceramic materials. The invention is mainly used for detecting the content of trace substances.
Owner:HARBIN INST OF TECH
Preparation method of nano-composite catalyst titanium dioxide pseudo-boehmite
InactiveCN103418361BSmall particlesIncomplete crystallizationPhysical/chemical process catalystsWater/sewage treatment by irradiationFiltrationUltraviolet lights
The invention discloses a preparation method of a nano-composite catalyst titanium dioxide pseudo-boehmite. The preparation method comprises the following steps of a, adding TiO2 into anhydrous ethanol, b, adding aluminum tri-sec-butoxide into the solution and carrying out stirring to obtain a mixed solution I, c, carrying out heating stirring to obtain a mixed solution II in a gel form, d, adding deionized water into the mixed solution II, and carrying out aging to obtain a mixed solution III, e, carrying out pumping filtration of the mixed solution III by a pumping filtration device to obtain a mixed solution IV, f, flushing the mixed solution IV by acetone several times to obtain a sample, and g, drying the sample to obtain the nano-composite catalyst titanium dioxide pseudo-boehmite. The preparation method utilizes gamma-AlOOH as a carrier, modified TiO2 as a catalyst and aluminum tri-sec-butoxide as an aluminum source to prepare the nano-composite catalyst titanium dioxide pseudo-boehmite by a one-step method. The nano-composite catalyst titanium dioxide pseudo-boehmite has strong adsorption and photocatalysis performances, good response to ultraviolet light and stable performances and can effectively treat water pollutants such as methyl orange.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Method for preparing Fe2O3/Ti-mesoporous composite material (MCM)-41
InactiveCN102179264BPlay a role in enrichmentImprove photocatalytic abilityMolecular sieve catalystsIron sulfatePtru catalyst
The invention discloses a method for preparing a Fe2O3 / Ti-MCM-41 mesoporous composite material. In the method, ordered MCM-41 is used as a carrier, TiO2 is used as a catalyst and is modified by being doped with iron, the iron source is ferric sulfate, the ordered MCM-41 is synthesized by a hydrothermal process, metal titanium atoms are introduced in a framework forming process, and the molar ratio of elements, namely TiO2, SiO2 and cetyltrimethyl ammonium bromide (CTAB), in precursor solution is 0.02:1:0.2. The preparation method comprises the following preparation steps: adding 100 to 200-mesh silica gel into 1.5 mol / l solution of sodium hydroxide, and violently stirring at a constant speed; adding CTAB solution at a mass percentage concentration of 10 percent into the solution of sodium hydroxide, and violently stirring at a constant speed; adding tetrabutyl titanate into the mixed solution and violently stirring at a constant speed; adding ferric sulfate into the mixed solution and violently stirring at a constant speed; regulating the pH value to 11.5 with 2mol / l HCl regulating solution, and performing a crystallization reaction at 100 DEG C; washing a sample till the sample is neutral and drying in an oven at 100 DEG C; and taking the product out and baking in a muffle furnace at 300 DEG C. The obtained Fe2O3 / Ti-MCM-41 mesoporous composite material has high absorption and photocatalytic performance, high response to sun light and stable performance and can effectively treat a formaldehyde indoor air pollutant.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Refine method for polygonum multiflorum water extract
ActiveCN101780152BPlay a role in enrichmentReduce the amount of ethanolPlant ingredientsLiver and kidneyPolygonum limbatum
The invention discloses a refine method for polygonum multiflorum water extract. The polygonum multiflorum has the efficacies of nourishing liver and kidney, benefiting essence and blood, blackening beard and hair and strengthening muscles and bones. The method adopts inorganic ceramic membrane filtration to refine the Polygonum multiflorum water extract, has high transferring efficiency of effective components, can be industrially produced, has simple feed liquid process; and the inorganic ceramic membrane is convenient to clean, and can be recycled.
Owner:HEBEI YILING MEDICINE INST
Preparation method of chebulaic acid in myrobalan meat and content determination method of chebulaic acid in myrobalan meat
ActiveCN114414702APlay a role in enrichmentGuaranteed purityComponent separationBiotechnologyAnimal science
The invention relates to the field of preparation and detection of traditional Chinese medicine chemical components, in particular to a preparation method and a content determination method of chebulaic acid in myrobalan meat. According to the method for preparing the chebulinic acid from the myrobalan meat, the product purity can reach 99% or above, the total yield can reach 60% or above, and the method can be applied to quality control of the chebulinic acid as a standard substance or a reference substance. Moreover, the method is simple in operation steps, low in equipment cost, applicable to industrial production and suitable for preparation of a large number of chebulaic acid reference substances. The method for determining the content of chebulagic acid in myrobalan can accurately detect the content of chebulagic acid in myrobalan meat, lays a theoretical basis and an experimental basis for establishing a quality standard of myrobalan, and has important significance for promoting industrial development of myrobalan.
Owner:LIAONING UNIV OF TRADITIONAL CHINESE MEDICINE
Nano-composite catalyst TiO2-gamma-AlOOH and preparation method as well as application thereof
InactiveCN102921398AImprove photocatalytic reaction efficiencyStrong photocatalytic abilityPhysical/chemical process catalystsWater/sewage treatment by irradiationMethyl orangeNanocomposite catalyst
The invention discloses a nano-composite catalyst TiO2-gamma-AlOOH, i.e., a nano-composite catalyst which is formed by loading TiO2 on gamma-AlOOH serving as a carrier, wherein the loading capacity of the TiO2 is (10-40):100 according to the mass ratio of the TiO2 to the gamma-AlOOH carrier, i.e., TiO2:gamma-AlOOH carrier. The nano-composite catalyst TiO2-gamma-AlOOH is prepared through a one-step synthesis method, i.e., the TiO2 is added into absolute ethanol, then aluminum tri-sec-butoxide is added, and heating, stirring, aging, vacuum filtration, acetone washing and drying are performed to obtain the nano-composite catalyst TiO2-gamma-AlOOH. The obtained nano-composite catalyst TiO2-gamma-AlOOH has the advantages of strong adsorption and photo-catalysis, good response to ultraviolet light, stable performance, capability of effectively treating pollutant methyl orange in wastewater and the like.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Refining method of traditional Chinese medicine composition water extract liquid containing fructus forsythiae
ActiveCN101797299BPlay a role in enrichmentReduce the amount of ethanolAntiviralsAluminium/calcium/magnesium active ingredientsEphedra herbForsythia suspensa
The invention discloses a refining method of traditional Chinese medicine composition extract liquid. The traditional Chinese medicine composition comprises fructus forsythiae, honeysuckle, ephedra herb, bitter apricot seed and the like, and can be used for treating flu. The method adopts an inorganic ceramic membrane for filtering to refine the traditional Chinese medicine composition extract liquid. The method is high in active ingredient transfer rate, can be used for industrial production, has simple material liquid treatment, is convenient for cleaning the inorganic ceramic membrane, and can be regenerated repeatedly.
Owner:BEIJING YILING PHARMA
A kind of metacarb three-signal sensing material and its preparation method and application
InactiveCN104865294BPlay a role in enrichmentHigh detection sensitivitySurface/boundary effectFluorescence/phosphorescenceClick chemistrySodium hydride
Owner:HUAZHONG NORMAL UNIV
Preparation method of nano-composite catalyst titanium dioxide pseudo-boehmite
InactiveCN103418361ASmall particlesCrystallization intactPhysical/chemical process catalystsWater/sewage treatment by irradiationFiltrationUltraviolet lights
The invention discloses a preparation method of a nano-composite catalyst titanium dioxide pseudo-boehmite. The preparation method comprises the following steps of a, adding TiO2 into anhydrous ethanol, b, adding aluminum tri-sec-butoxide into the solution and carrying out stirring to obtain a mixed solution I, c, carrying out heating stirring to obtain a mixed solution II in a gel form, d, adding deionized water into the mixed solution II, and carrying out aging to obtain a mixed solution III, e, carrying out pumping filtration of the mixed solution III by a pumping filtration device to obtain a mixed solution IV, f, flushing the mixed solution IV by acetone several times to obtain a sample, and g, drying the sample to obtain the nano-composite catalyst titanium dioxide pseudo-boehmite. The preparation method utilizes gamma-AlOOH as a carrier, modified TiO2 as a catalyst and aluminum tri-sec-butoxide as an aluminum source to prepare the nano-composite catalyst titanium dioxide pseudo-boehmite by a one-step method. The nano-composite catalyst titanium dioxide pseudo-boehmite has strong adsorption and photocatalysis performances, good response to ultraviolet light and stable performances and can effectively treat water pollutants such as methyl orange.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
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