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64results about How to "Concentrate" patented technology

Surface modified nano ferroferric oxide Fenton catalyst and preparation method thereof

The invention discloses a surface modified nano ferroferric oxide Fenton catalyst and a preparation method thereof. The preparation method of the surface modified nano ferroferric oxide Fenton catalyst comprises the following steps: firstly preparing high dispersibility nano ferroferric oxide by adopting a coprecipitation method, and then carrying out surface modification on the nano ferroferric oxide by adopting a hydrolysis method. Organic acid salt and a non-ionic surface active agent are added when the coprecipitation method is adopted for preparing ferroferric oxide particles, so that the quantity of inorganic matters deposited on the surfaces of the ferroferric oxide particles is low, enrichment of reaction substrate and charge transfer on the surfaces of the ferroferric oxide particles can be enhanced, good catalytic efficiency can be realized at room temperature in a larger pH range, and the surface modified nano ferroferric oxide Fenton catalyst can be used for advanced oxidation treatment of dye sewage, organic pollutant sewage, pesticide sewage and the like. Therefore, the preparation method of the surface modified nano ferroferric oxide Fenton catalyst has the characteristics of simplicity in operation, mild conditions, adaptability to large-scale preparation and the like, cost for obtaining the product is low, and the obtained product can be widely and more easily popularized.
Owner:SOUTHWEST UNIVERSITY FOR NATIONALITIES

Mechanical switch light guide and mechanical switch added with light guide

The invention belongs to the field of mechanical keyboard equipment and specifically provides a mechanical switch light guide and a mechanical switch added with the light guide. The mechanical switch light guide of the invention comprises a cylinder body capable of guiding light. A plurality of convex lenses is evenly arranged at the surface of one end of the cylinder body, and a concave lens is arranged at the other end of the cylinder body. The mechanical switch added with the light guide comprises the mechanical switch light guide of the invention. The beneficial effects of the invention are as follows: the invention provides the mechanical switch light guide which is colorful, convenient for dismantling and repairing, and gentle in dispersed light and which has a light-focusing effect. Simultaneously, the mechanical switch added with the light guide provided by the invention has the advantages that the installation efficiency of the LED lamp is high, and the fixation and stability of the LED lamp are not influenced by dismantling and repairing a switch main body besides the advantages of the mechanical switch light guide of the invention.
Owner:DONGGUAN GAOTE ELECTRONICS

Preparation method of jujube health salt

InactiveCN104783121AContinuity of careConcentrateFood preparationPre treatmentCrystallization
The invention discloses a preparation method of jujube health salt. The preparation method comprises the following steps: 1) jujube pre-treatment, 2) supercritical CO2 extraction: extracting jujube powder by using supercritical CO2 to obtain jujube functional components; and 3) recrystallization: dissolving the jujube functional components, resulting from the step 2, of B, C, and D in a pure water solution at a normal temperature and a normal pressure, adding and dissolving sodium chloride till the solution is saturated, and performing vacuum distillation to obtain jujube health salt crystals. The preparation method of jujube health salt is provided in the invention, and jujube extractives are added into salt, so that a health function of jujubes can be maximally developed, and people's health is prompted while using salt for achieving a purpose of seasoning.
Owner:YULIN SALT IND CO LTD CNSG

Method of preparing traditional Chinese medicine preparation for treating melancholia and anxiety neurosis

InactiveCN101244208ASignificant insomniaSignificant depressionNervous disorderUnknown materialsAngelica Sinensis RootAdditive ingredient
The invention relates to a preparation method of Chinese herbal medicine preparation for treating depression and anxiety disorder, having the materials of roasted milkvetch root, Largehead Atractylodes Rhizome, Rhizoma Gastrodiae, medlar, Prepared Rehmannia Root, root of herbaceous peony, danshen root, angelica sinensis, Szechwan Lovage Rhizome, Epimedium Herb, semen zizyphi spinosae, polygalae, pachyma cocos, medicinal glue, American ginseng and Hairy Antler. The water volume of water decoction, extraction time and extraction times of the roasted milkvetch root, Largehead Atractylodes Rhizome, Rhizoma Gastrodiae, medlar, Prepared Rehmannia Root, root of herbaceous peony, danshen root, angelica sinensis, Szechwan Lovage Rhizome, Epimedium Herb, semen zizyphi spinosae, polygalae, pachyma cocos are preferred by adopting orthogonal test in the invention, which remain every component of medicinal materials having effect on the indications to the utmost extent; simultaneously the extraction of ineffective ingredient is reduced; the concentration is processed, and the active ingredient is not lost; the cost is lowered; the medicinal glue, American ginseng and Hairy Antler are ground, and the raw powder is used as medicines. The capsules prepared by the preparation method of Chinese herbal medicine preparation has the advantages of convenient administration, small administration dosage, easy discharge of the drug active ingredient, rapid absorption, increased bioavailability and fully exerted drug efficacy.
Owner:HOSPITAL NO 3 CPLA

Aloe and momordica grosvenori compound capsule with high mogroside IV content

The invention discloses an aloe and momordica grosvenori compound capsule with high mogroside IV content. The capsule has the function of preventing and treating hepatitis C and comprises the following components by dry basis weight percent: 5-10% of freeze drying powder of aloes with primary colors and full leaves, 8-12% of momordica grosvenori extract with mogroside IV content of 15-55%, 6-12% of honeysuckle extract, 4-8% of radix isatidis extract, 30-40% of corn starch, 10-25% of maltodextrin and 10-15% of microcrystalline cellulose, wherein the contents of functional components in the finished product are as follows: in every 100g of the product, the content of mogroside IV is 1200-6600mg and the content of O-acetyl is more than 800mg. The compound capsule is normally taken twice to three times a day and one to two capsules are taken each time.
Owner:GUILIN UNIV OF ELECTRONIC TECH

Refining method of tylosin

The invention discloses a refining method of tylosin. The refining method comprises the following steps: (1) dissolving coarse tylosin in an organic solvent, then adding active carbon, stirring to carry out a decoloring treatment so as to obtain a mixture; (2) filtering the mixture, namely orderly subjecting the mixture to microfiltration, ultra-filtration, and nano-filtration, then condensing the filtrate to obtain a condensed liquid; (3) spray-drying the obtained condensed liquid so as to obtain the tylosin. The provided refining method is capable of improving the purity of coarse tylosin to 99% or more by combining organic dissolution, active carbon decoloring, and multiple membrane filtration technologies. The pyrogen in tylosin is completely removed, the processed tylosin reaches the injection grade, and the yield can reach 93% to 96%. Moreover, during the refining process, no other substance is added, the probability of secondary impurity pollution is avoided, the nano-filtration can play a condensing function, the reutilization rate is high, the energy consumption during the drying process is greatly reduced, the technology is simple, the operation is convenient, and the refining method is suitable for massive industrial production.
Owner:河南后羿制药有限公司

Sample pad, sample pad treatment liquid and test strip for detecting HIV antibody in urine

ActiveCN107727855AReduced stabilityImprove dissolution release rateBiological material analysisMedicineMembrane surface
The invention discloses a sample pad, a sample pad treatment liquid and a test strip for detecting a HIV antibody in urine. The sample pad treatment liquid comprises a buffer solution with pH of 8-11,an aqueous rheological assistant and a sealing agent. Relative to each 100mL of the buffer solution, 0.05 to 10g of the aqueous rheological assistant and 0.05 to 10g of the sealing agent are used. The sample pad treatment liquid of the test strip for detecting a HIV antibody in urine utilizes the buffer solution with the appropriate pH and the aqueous rheological assistant and the sealing agent with appropriate concentrations, eliminates the urine influence on immune gold stability and improves an immune gold dissolution release rate and a membrane surface tomographic form.
Owner:GUANGZHOU WONDFO BIOTECH

Natural active protein and peptide separating and purifying process

InactiveCN1403582ALow running costHigh product recovery rateFermentationIonPeptide
The present invention is natural active protein and peptide separating and purifying process. The natural material with rich protein is processed through defatting, cleaning, homogenizing, mixing with deionized water inside a bioreactor regulating pH to 5-8, heating to 70-90 deg.c, maintaining and stirring for 10-30 min, quick cooling to 30-50 deg.c and mixing with composite proteinase for enzymolysis to obtain mixture of protein and peptide. Through processing with polyethersulfone superlow protein adsorbing membrane via OMEGA technological process treatment and tangent flow superfiltering to grade according to molecular weight, purifying with ion exchange chromatographic mode, etc. natural active protein and peptide products with different molecular and different molecular structure and obtained.
Owner:广州瑞谷生物技术有限公司

High-performance electronic cigarette atomizer

The invention discloses a high-performance electronic cigarette atomizer, which comprises an atomizer shell and a cigarette holder, an oil storage groove is formed in the atomizer shell, a smoke channel is formed in the oil storage groove, a filtering groove is formed in the upper end of the smoke channel, and a filtering plate is arranged at the upper end of the filtering groove; the cigarette holder is arranged at the upper end of the filtering plate, an anti-seepage ball is arranged below the filtering groove, anti-seepage cotton is arranged below the anti-seepage ball, an oil outlet pipe is arranged below the oil storage tank, an oil leakage film is arranged in the oil outlet pipe, and oil leakage holes are formed in the oil leakage film; and micro fans are arranged on the left side and the right side of the oil outlet pipe. According to the high-performance electronic cigarette atomizer, redundant tobacco tar can be adsorbed through the arranged impermeable cotton, the situation that the tobacco tar enters the oral cavity of a user by mistake is avoided, meanwhile, the adhesion degree between the atomizer shell and an electronic cigarette can be improved through the attraction magnet, and the atomizer shell is prevented from falling off.
Owner:洛阳市胜雪网络科技有限公司

Method for synchronously detecting three viruses of lily by immunocapture triple RT-PCR (reverse transcription-polymerase chain reaction)

The invention provides a method for synchronously detecting a latent symptom virus, a mottle virus and a cucumber mosaic virus of lily by immunocapture triple RT-PCR (reverse transcription-polymerase chain reaction). The method comprises the following steps: specifically capturing LSV, LMoV and CMV particles by polyclonal antibodies of LSV, LMoV and CMV in the same PCR reaction tube; and carrying out triple RT-PCR and agarose gel electrophoresis detection on a target segment by the specific primers of the LSV, the LMoV and the CMV. According to the method, by combination of ELISA and RT-PCR, existing immunocapture triple RT-PCR is improved; and synchronous detection of three lily viruses LSV, LMoV and CMV by immunocapture triple RT-PCR is achieved, so that the immunocapture RT-PCR technology is perfected.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS +1

User view attribute modifying method and device

The embodiment of the invention provides a user view attribute modifying method and device. The user view attribute modifying method comprises the following steps: a manager monitors operation of a user on a user view in real time; if an attribute modifying instruction used for modifying the attribute of the user view is received, modification data for the user to modify the attribute of the user view is determined according to the attribute modifying instruction; the modification data is called back, data of the user view and a data model is simultaneously updated according to the modification data. The user view is only directly related to the manager but not directly related to the data model, and the user does not need to modify the data of the user view after successful modification of the data of the data model, so that the waiting time of the user is shortened; meanwhile, the user view and the data model are separated, so that time and effort for communication of all development personnel are reduced, all the development personnel can focus on development, and accordingly, the development attentiveness and the development efficiency of the development personnel are improved.
Owner:INSPUR BEIJING ELECTRONICS INFORMATION IND

Rapid detection of lean meat powder in pork

The invention discloses a gold-magnetic immunochromatographic test strip for rapid quantitative detection of lean meat powder (clenbuterol hydrochloride and ractopamine) in pork. The test strip comprises a base plate, a sample pad, a conjugate release pad, a porous filter membrane and an absorption pad, wherein the sample pad, the conjugate release pad, the porous filter membrane and the absorption pad adhere to the base plate and are connected in sequence. The porous filter membrane is coated with a detection line T1 for a clenbuterol hydrochloride-BSA coupled antigen, a detection line T2 for a ractopamine-BSA coupled antigen and a quality control line C coated with a goat-anti-mouse secondary antibody in sequence, and a monoclonal antibody, marked with gold-magnetic nanoparticles, for clenbuterol hydrochloride and ractopamine is embedded in the sample pad. The test strip combines the advantages of color development and bio-affinity of a colloidal gold test strip, and the advantages of nano-magnetic beads that separation is easy and quantitative detection can be achieved; by means of the prepared test strip, qualitative detection can be conducted through visual inspection, and quantitative detection can also be conducted through magnetic measurement.
Owner:陈军 +1

Aloe and momordica grosvenori compound capsule with high mogroside IV content

The invention discloses an aloe and momordica grosvenori compound capsule with high mogroside IV content. The capsule has the function of preventing and treating hepatitis C and comprises the following components by dry basis weight percent: 5-10% of freeze drying powder of aloes with primary colors and full leaves, 8-12% of momordica grosvenori extract with mogroside IV content of 15-75%, 6-12% of honeysuckle extract, 4-8% of radix isatidis extract, 30-40% of corn starch, 10-25% of maltodextrin and 10-15% of microcrystalline cellulose, wherein the contents of functional components in the finished product are as follows: in every 100g of the product, the content of mogroside IV is 1200-9000mg and the content of O-acetyl is more than 800mg. The compound capsule is normally taken twice to three times a day and one to two capsules are taken each time.
Owner:周治德

Eudragit S100 coated curcumin pectin microsphere and preparation method thereof

The invention discloses an eudragit S100 coated curcumin pectin microsphere. The microsphere is prepared by the following steps: preparing the curcumin pectin microsphere, and coating, wherein the curcumin pectin microsphere is prepared from curcumin and pectin, the mass ratio of the curcumin to the pectin is 1:(1-6), the grain size of the pectin microsphere is between 50 and 80 mu m, the loading rate is between 10 and 31 percent, and the entrapment rate is between 40 and 60 percent; and the coating material is Eudragit S100, the mass ratio of the Eudragit S100 to the curcumin pectin microsphere is (5-10):1, the grain diameter of the coated microsphere is between 150 and 210mu m, and the loading rate is between 0.8 and 1.5 percent. The colon targeting pectin coated microsphere prepared from the curcumin can specifically release the curcumin under a colon physiological condition, the medicament is concentrated in the colon region, and the local medicament concentration is improved, so the function of effectively treating colon cancer can be achieved.
Owner:SHANDONG UNIV

Peony salt and preparation method thereof

InactiveCN109619581AConcentrateAvoid Strong FragrancesFood ingredient functionsFlavorNatural medicine
The invention discloses peony salt and a preparation method thereof, and belongs to the field of food seasonings. The peony salt takes peony and salt as main raw materials, the salt is ingeniously selected as a carrier, and a suitable amount of peony and effective extracted substances of the peony are added in different modes; after uniform mixing, a novel peony salt product is prepared, and the healthy peony salt can be taken as edible salt and seasoning salt. The peony salt prepared by adopting the method has functions of improving taste and seasoning food of salt, new flavor of salt is created, and the peony salt has the health care function of the peony. The preparation method is simple, the operation is convenient, raw materials are wide in source, the cost is low, the peony salt is environmentally friendly, the stability of the peony salt is good, and large-scale industrial production is convenient. According to the method, by controlling the proportion of the peony, the effective extracted substances of the peony and the salt, the content of the effective extracted substances of the peony in the peony salt is controlled, and the method is suitable for preparation of salt containing active and effective components of natural medicine of other peony kinds, derivatives of the peony and the like.
Owner:ZHONGYUAN ENGINEERING COLLEGE

Traditional Chinese medicine for treating senile dementia

The invention relates to a traditional Chinese medicine for treating senile dementia. The traditional Chinese medicine is prepared from the following medicines in parts by weight: 10-20 parts of peach kernel, 10-15 parts of rheum officinale, 8-12 parts of cassia twig, 5-8 parts of keel, 5-10 parts of oyster, 6-9 parts of cinnabar root poria, 8-12 parts of polygala tenuifolia, 10-15 parts of centipede, 6-9 parts of rattletop, 3-5 parts of agilawood, 6-10 parts of bighead atractylodes rhizome and 5-10 parts of liquorice. According to the theory of traditional Chinese medicine, the agent prepared by combining the medicines has the effects of gradually eliminating frozen synapse and restoring consciousness and resuscitation. The traditional Chinese medicine has an excellent curative effect of treating senile dementia.
Owner:金先琦

Gradient preparation method of ultrahigh barley malt syrup

The invention belongs to the technical field of barley malt syrups, and particularly relates to a gradient preparation method of ultrahigh barley malt syrup. The method includes the steps: placing starch into ethanol water solution, performing ultrasonic stirring and hermetically pressurized reaction, and rapidly releasing pressure and then filtering mixture to obtain refined starch solution afterstanding and reacting; adding pullulanase and beta-amylase and pullulanase and maltase into citric acid-sodium citrate buffer solution to obtain first enzymolysis liquid and second enzymolysis liquid, adding the first enzymolysis liquid and the second enzymolysis liquid into a double-layer reaction kettle, slowly adding the refined starch solution, performing microwave reaction and stirring and heating reaction, mixing mixture after reaction, and performing standing and reacting to obtain enzymatic liquid; performing heating, enzyme deactivation and pressure reducing distillation on the enzymatic liquid, and filtering mixture by a micro-porous film to obtain the ultrahigh barley malt syrup. The method solves the problems that an existing process is high in production cost and easily pollutes environment, the method is simple and easy in process, good in stability and suitable for industrial production, and waste gas and waste water are omitted.
Owner:无锡甜丰食品有限公司

Cyclone overflow pulp classification system and pulp classification process

ActiveCN105214833AHigh recovery rateThe grading process is simple and reliableSolid separationRotary centrifugesCycloneSlag
The invention relates to a cyclone overflow pulp classification system and a pulp classification process. Pulp enters a first-grade cyclone for centrifugal separation; particles larger than 74 microns are discharged from a sand settling port of the first-grade cyclone; particles smaller than 74 microns are discharged from an overflow port of the first-grade cyclone; after the particles are cached by a buffer tank, the particles are fed from a first-grade slurry pump to a second-grade cyclone for centrifugal separation; particles larger than 37 microns are discharged from a sand settling port of the second-grade cyclone; particles smaller than 37 microns are discharged from an overflow port of the second-grade cyclone for removing large residues by a 0.5 mm slag separation sieve; after the pulp removed away the large residues enters a stirring tank for uniform stirring, the pulp is fed from a second-grade slurry pump to a 0.8 mm filter for impurity removal; the pulp, with impurities removed away, enters an inclined disc classifier for classification; settled sand of the classifier is discharged from a bottom flowing discharge port of the inclined disc classifier; and an overflow of the classifier is discharged from an overflow discharge port of the inclined disc classifier for entering a tailing. The classification system and process can improve the recovery rate of targeted ores to promote the economic benefit.
Owner:MYANDE GRP CO LTD

Beverage containing eucommia bark leaf extract and preparation method thereof

The invention belongs to the field of foods and provides a beverage containing a eucommia bark leaf extract. The beverage contains a eucommia bark leaf extract and a food additive, the powder particles of the eucommia bark leaf extract are between 30 meshes and 50 meshes, and the content (HPLC) of the eucommia bark leaf extract is greater than 30%. The invention also provides a preparation method of the beverage containing the eucommia bark leaf extract, comprising a step of preparing the eucommia bark leaf extract, a step of carrying out spray drying on the eucommia bark leaf extract, a step of preparing a solution and a step of curing, adding a food additive, carrying out secondary curing homogenizing and boiling so as to obtain the beverage containing the eucommia bark leaf extract. In the invention, deep processing is carried out on eucommia bark leaves, the eucommia bark leaf extract is prepared into powder by spray drying, the edible beverage is prepared by the deep processing, the eating mouth feel and the drinking quality are improved, and people can obtain the medicinal value of the beverage through drinking. The method of the eucommia bark leaves of the beverage is raised and exerted, and the exertion of the eucommia bark leaves is refined.
Owner:彭真中

Burdock tea beverage and production method thereof

The invention provides a burdock tea beverage and a production method thereof. The burdock tea beverage comprises the following raw materials by mass percentage: 1-3% of burdock powder, 0.1-0.3% of jasmine tea, 1-3% of white sugar, 26-29% of food additive and the balance of water. The burdock tea beverage is simple in process and good in taste, and is a multifunctional health care beverage; nutrients in the burdock are utilized completely.
Owner:XUZHOU WANGDA FARM & SIDELINE PRODS

Detection kit for epidemic hemorrhagic fever virus

InactiveCN105785042AReduce areaConcentrateBiological testingImmunoassaysSerum igeEpidemic hemorrhagic fever virus
The invention discloses a detection kit for epidemic hemorrhagic fever virus. The detection kit comprises a nanogold marked mouse-anti-human IgA antibody detection probe, an epidemic hemorrhagic fever virus mixing specific antigen and a spot gold immune concentrated infiltration device, wherein the concentrated infiltration device is composed of three parts, namely, a small plastic box, a nitrocellulose membrane added with the epidemic hemorrhagic fever virus mixing specific antigen and a water-absorbing pad. A corresponding square groove corresponding to a square hole in a box cover is formed at the center of the bottom of the small plastic box. The detection kit provided by the invention is used for detecting if the epidemic hemorrhagic fever virus antibody exists in human serum according to a spot gold immune concentrated infiltration method; if a human body is infected by the epidemic hemorrhagic fever virus can be quickly and directly judged; the detection kit provided by the invention is simply prepared; the detection is convenient and quick; the sensitivity is high; a new method for clinical diagnosis for epidemic hemorrhagic fever is supplied; the detection kit is fit for clinic application.
Owner:陈秀海

Tray for operating room nursing

InactiveCN107753115AConvenient for surgical workReduce surgical extra workSurgical furnitureOperating theatresEngineering
The invention discloses a tray for operating room nursing. The tray comprises a movable box base, wherein a fixed box is arranged on the back side of the upper end of the movable box base; the surfaceof the fixed box is provided with a plurality of sliding chutes; the sliding chutes are vertical to the fixed box at equal intervals; sliding seats are arranged in the sliding chutes; limiting sliding chutes are formed in the sliding seats; threaded rods are arranged in the limiting sliding chutes; threaded slide blocks are arranged in the limiting sliding chutes; the lower ends of the threaded rods are connected with a driving device; the driving device comprises a servo motor; the threaded slide blocks are connected with sliding plates attached to the surfaces of the sliding chutes; the sliding plates are connected with movable frames; the movable frames are connected with tray frames; trays are arranged in the tray frames; rollers are arranged at the lower end of the movable box base;the rollers are arranged in a driving box. The tray for operating room nursing can realize automatic movement and automatic lifting work of the trays, can provide surgical instruments for medical staff in sequence, is convenient to operate, and has the advantage of automatic medical treatment.
Owner:周霜

Bird flu virus detection reagent kit

The invention discloses a bird flu virus detection reagent kit which comprises a bird flu virus cyst membrane antigen, a nanogold-labeled rabbit anti-chicken IgY antibody detection probe, and a dot immunogold concentrated diafiltration device. The concentrated diafiltration device is composed of a small plastic box, a nitrocellulose membrane where the bird flu virus cyst membrane antigen is added dropwise, and a water-absorbing pad. The water-absorbing pad is placed in a groove of the small plastic box, and the nitrocellulose membrane is placed between the water-absorbing pad and a kit cover. On the basis that a bird flu virus cyst membrane has the antigen characteristic, the nitrocellulose membrane of the bird flu virus cyst membrane antigen is prepared, then a nanogold-labeled rabbit anti-chicken IgY antibody serves as the detection probe, the dot immunogold concentrated diafiltration method is used for detection, detection speed is high, sensitivity is high, and the whole detection reagent kit is easy to prepare and low in cost.
Owner:王好玉

Cast iron artistic manhole cover production process

The invention provides a cast iron artistic manhole cover production process. The cast iron artistic manhole cover production process comprises the steps of S1, machining panel dies through a customized decorative pattern machine tool; S2, manufacturing cast iron manhole cover blanks, conducting treatment, grinding and repairing on the blanks, conducting degreasing on the blanks, removing releaseagents and conducting quenching; S3, spraying metal and non-metal accelerants and conducting drying; S4, spraying primer, conducting high-temperature drying, spraying epoxy middle coating, conductinghigh-temperature drying, spraying epoxy metal top-coat and conducting high-temperature drying; S5, conducting epoxy resin coloring on the surfaces of the blanks, spraying surface sealing agents and conducting high-temperature drying; and S6, conducting cooling, checking, packaging and warehousing. Through the cast iron artistic manhole cover production process, the surface pattern layer of each manhole cover is not easy to peel off. The image and the integrated environment grade of a project are improved aesthetically from the landscape.
Owner:盐城高科道路设施有限公司

Surface-modified nanometer ferric oxide Fenton catalyst and preparation method thereof

The invention discloses a surface modified nano ferroferric oxide Fenton catalyst and a preparation method thereof. The preparation method of the surface modified nano ferroferric oxide Fenton catalyst comprises the following steps: firstly preparing high dispersibility nano ferroferric oxide by adopting a coprecipitation method, and then carrying out surface modification on the nano ferroferric oxide by adopting a hydrolysis method. Organic acid salt and a non-ionic surface active agent are added when the coprecipitation method is adopted for preparing ferroferric oxide particles, so that the quantity of inorganic matters deposited on the surfaces of the ferroferric oxide particles is low, enrichment of reaction substrate and charge transfer on the surfaces of the ferroferric oxide particles can be enhanced, good catalytic efficiency can be realized at room temperature in a larger pH range, and the surface modified nano ferroferric oxide Fenton catalyst can be used for advanced oxidation treatment of dye sewage, organic pollutant sewage, pesticide sewage and the like. Therefore, the preparation method of the surface modified nano ferroferric oxide Fenton catalyst has the characteristics of simplicity in operation, mild conditions, adaptability to large-scale preparation and the like, cost for obtaining the product is low, and the obtained product can be widely and more easily popularized.
Owner:SOUTHWEST UNIVERSITY FOR NATIONALITIES

Chlorogenic acid purifying and concentrating method

The invention relates to the field of purification of chlorogenic acid and discloses a chlorogenic acid purifying and concentrating method. The chlorogenic acid purifying and concentrating method comprises the following steps: (1) ultra-filtering a crude chlorogenic acid extract; (2) transferring an ultra-filtered thin solution to a fresh water tank, transferring an ultra-filtered concentrated solution to a percolation tank, adding water into the percolation tank to obtain a percolate; ultra-filtering the percolate again, transferring the ultra-filtered thin solution subjected to ultrafiltration again into the fresh water tank, and transferring the ultra-filtered concentrated solution subjected to ultrafiltration again to the percolation tank, and circulating in turn; and (3) conducting reverse osmosis treatment on the ultra-filtered thin solution, enabling a reverse osmosis thin solution to enter the fresh water tank again, and collecting a reverse osmosis concentrated solution. The method adopts the mode of combination of a tubular ultrafiltration membrane and a reverse osmosis membrane, the chlorogenic acid extract is purified and concentrated, on the basis of guaranteeing the purity of an obtained chlorogenic acid extract concentrated solution, the whole process is high in efficiency, the energy consumption is low, the cost is reduced, and no extra pollutants are produced in the whole process.
Owner:HANGZHOU RUINA MEMBRANE ENG

Automatic rejecting device

The invention discloses an automatic rejecting device, and aims to provide an automatic rejecting device with a good rejecting effect. The device comprises a device body, a joint assembly and a connecting assembly, a plurality of first through holes are formed in the device body, a plurality of second through holes are formed in the joint assembly, one end of the connecting assembly is connected with the device body through the first through holes, the other end of the connecting assembly is connected with the joint assembly through the second through holes, a clamping jaw is arranged at the upper end of the device body, and an air hole is formed in the front end of the device body. The automatic rejecting device has the beneficial effects that the rejecting effect is good, force exerted by the device is more concentrated, firm connection between components is facilitated, the length of a joint can be controlled, the front-back position of the joint can be adjusted, loose connection between the components is prevented, and clamping jaw sliding is avoided.
Owner:长兴普思泰克智能装备有限公司

A kind of preparation method of plant placenta

The invention discloses a preparation method of plant placenta extracts, wherein the placenta of the rare aquatic flower, namely, water lily is taken as a raw material. The preparation method comprises the following steps: removing impurities from the placenta of the fresh water lily, washing the impurity-removed placenta of the fresh water lily to be clean, draining the washed placenta of the fresh water lily, carrying out pulping, carrying out cell disruption by adopting ultrasonic waves, carrying out high-speed homogenizing, carrying out high-speed centrifugal separation on the homogenate, taking the supernate, carrying out decolorization on the supernate, and carrying out dialysis and nanofiltration to obtain the plant placenta extracts. With the adoption of the preparation method, a purely natural and efficient active skin-caring substance is provided for the field of cosmetics, in addition, the raw materials are easily available, so that the production cost is greatly reduced, and moreover, the preparation method is simple, is suitable for industrial production, and has a very high market promotion value.
Owner:IDEALITY TECH GRP
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