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41results about How to "Easy for industrial transformation" patented technology

Low temperature process of preparing RE borate crystal with oxide as precursor

The present invention belongs to the field of micron / nanometer material preparing technology and hydrothermal synthesis technology, and is especially low temperature process of preparing RE borate crystal with oxide as precursor. In the hydrothermal system, insoluble RE oxide and hydrated boron trioxide or boron trioxide as the boron source and precursor are reacted at 190-280 deg.c for 12-48 hr, and through further washing, the required RE borate crystal is obtained. The present invention provides one inorganic synthesis way, and the production process has no any pollution. The present invention has simple technological process, easy-to-constitute reaction system, high product purity and other advantages, and is suitable for industrial production.
Owner:TONGJI UNIV

Sliding discharge reactor for ignition and combustion assistance

InactiveCN105221319ADoes not affect the observation of discharge characteristicsIncrease electron densityInternal combustion piston enginesCombustion-air/fuel-air treatmentCombustionHigh electron
The invention discloses a sliding discharge reactor for ignition and combustion assistance. The sliding discharge reactor for ignition and combustion assistance comprises a crossed four-way tubular insulating device, a pair of sliding discharge electrodes, a combustion area, an arcing end, a plasma excitation power supply and an air source. The crossed four-way tubular insulating device is formed by two tubular crosses. The pair of sliding discharge electrodes are installed at electrode installation ports through glue. The combustion area is located between the intersection and an air outlet. The arcing end is located between the pair of sliding discharge electrodes. The plasma excitation power supply is connected to one end of one sliding discharge electrode through a wire. The air source is connected with a gas flow meter. The sliding discharge reactor for ignition and combustion assistance has the beneficial effects that a sliding arc generated by a pin-pin discharging device is used for discharging, and proper heat-resistant glass pipes are additionally arranged on all pin electrodes respectively to form strong media for preventing discharge; the reactor is simple and can be applied to the position where gas combustion air inlet is connected with an engine, the ignition time is shortened, the contact area is increased, and fuel combustion is accelerated; due to the fact that plasma generated through sliding discharge has high electron density, fuel combustion efficiency can be effectively improved.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Method for preparing saffron crocus extract for cigarette from immobilized beta-glucosidase

The invention provides a method for preparing a saffron crocus extract for cigarette from immobilized beta-glucosidase. The method comprises the following steps: (1) taking dry saffron crocus flowers, adding water and performing microwave extraction, thereby acquiring a saffron crocus extracting solution; (2) with sodium alga acid as a carrier, embedding, thereby acquiring sodium alga acid immobilized enzyme; (3) treating the saffron crocus extracting solution with immobilized beta-glucosidase; (4) filtering the extracting solution after enzyme treatment, concentrating the filtered saffron crocus extracting solution at reduced pressure and collecting a concentrated solution, thereby acquiring the saffron crocus extract for cigarette. According to the invention, the saffron crocus extract is treated with immobilized beta-glucosidase, the fragrance precusor substance in saffron crocus is hydrolyzed and the potential aroma constituent in saffron crocus is released, so that the extracting yield of the aromatic substance in saffron crocus is greatly increased, the production cost is lowered and the special cigarette perfume material with richer fragrance and higher quality can be acquired.
Owner:HUBEI CHINA TOBACCO IND

Method for preparing Nano/micro crystal of rare earth vanadate from oxide as precursor body under low temperature

This invention relates to a method for preparing rare earth vanadate nano- and micro-crystals from oxide precursors at a low temperature. The method uses insoluble rare earth oxide and V2O5 as the precursors to directly synthesize rare earth vanadate nano- and micro-crystals by hydrothermal reaction at 120-240 deg.C for a certain time. Besides, the morphology and crystal structure and the product can be controlled by changing the reaction temperature and time as well as adding the additive.
Owner:TONGJI UNIV

Method for extracting maize yellow pigment from maize protein

The invention relates to the technical field of corn gluten meal deep processing, in particular to a method for extracting maize yellow pigment from maize protein. The method comprises the following steps of performing superfine grinding on the corn gluten meal into ultra-fine powder of which the particle size is 300 to 500 meshes, adding water, xylanase and aspergillus oryzae protease into the ultra-fine powder to perform enzymolysis on the ultra-fine powder, centrifuging the enzymatic hydrolysate, and removing the supernate to obtain a precipitate; adding ethanol into the precipitate, extracting the mixture in a microwave reaction system, and collecting the supernate; and removing protein from the supernate, concentrating the filtrate under reduced pressure to obtain a paste, and freezing the paste under vacuum to dry the paste until the weight of the paste is consistent. The xylanase and the aspergillus oryzae protease are adopted to perform enzymolysis on the maize protein ultra-fine powder, so that the extraction rate of the maize yellow pigment is well improved; and the step of superfine grinding facilitates the dissolving of the maize yellow pigment in an extraction process.
Owner:INST OF AGRO FOOD SCI & TECH SHANDONG ACAD OF AGRI SCI

Device and method for focusing cold plasma to process 3D object

InactiveCN108322984AUniform 3D processingFast 3D ProcessingPlasma techniqueDielectricEngineering
The invention discloses a device and a method for focusing a cold plasma to process a 3D object. The device comprises a jet flow support, dielectric barrier tubes, tungsten electrodes, a support shaft, a mobile mechanical arm, a sample fastener, a gas circuit chamber and a line chamber, wherein the cross section of the jet flow support is a regular polygon cylinder and a vertical through hole is arranged at the center position of a thickness direction; there are several dielectric barrier tubes, and one end of each dielectric barrier tube passes through the side surface of the corresponding jet flow support and is inserted into the vertical through hole of the jet flow support; the tungsten electrodes are fixedly arranged at the central axes of the dielectric barrier tubes, and the numberis the same with the number of the dielectric barrier tubes; the support shaft is vertically arranged at one side of a jet flow array; one end of the mobile mechanical arm is movably connected to thesupport shaft, and the other end of the mobile mechanical arm is connected to the sample fastener; the lower end of the sample fastener is provided with an insulation clamping structure used for clamping a sample to be processed; and the uniform cross sections of the gas circuit chamber and the line chamber are regular-polygon hollow cylinders, the gas circuit chamber is arranged on the upper endof the line chamber, and the jet flow support is nested in the gas circuit chamber.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Transurethral double-operation-channel bladder tumor laser monoblock excision equipment

The invention discloses transurethral double-operation-channel bladder tumor laser monoblock excision equipment, which comprises an outer sheath, an operation sheath, a cystoscope endoscope, a laser optical fiber, traction pliers and pushing pliers, wherein the outer sheath comprises an outer sheath body, a water feeding connector and a water discharging connector; the inner end side wall of the outer sheath body is provided with a plurality of perfusion holes; the operation sheath comprises a bladder endoscope operation pipe, a laser operation pipe and an auxiliary pliers operation pipe, wherein the bladder endoscope operation pipe, the laser operation pipe and the auxiliary pliers operation pipe are arranged in parallel, and the operation sheath can be put in the outer sheath body; the bladder endoscope comprises an eyepiece, an endoscope body, an objective lens and a light guiding barrel, wherein the endoscope body of the bladder endoscope can be put in the bladder endoscope operation pipe; the laser optical fiber can be put in the laser operation pipe; the traction pliers and the pushing pliers independently comprise a handle, a pliers rod and a pliers head and can be put in the auxiliary pliers operation pipe; the pliers clamping surface of the pliers head of the traction pliers has a fine grained structure, and the outer end of the pliers head of the traction pliers has a mouse tooth structure; the handle has a buckling and locking structure; and the pliers clamping surface of the pliers head of the pushing pliers has a sawtooth structure. The transurethral double-operation-channel bladder tumor laser monoblock excision equipment has the advantages that a surgeon can conveniently operate the transurethral double-operation-channel bladder tumor laser monoblock excision equipment, operation is more accurate, an applicable range is wide and the like.
Owner:THE SECOND HOSPITAL AFFILIATED TO SUZHOU UNIV

Arc plasma reactor, and method used for conversion of heavy oil to light fractions

The invention discloses an arc plasma reactor, and a method used for conversion of heavy oil to light fractions. The arc plasma reactor comprises a reaction tank, and a plasma array arranged in the reaction tank; the reaction tank is provided with a gas inlet, a gas outlet, a reactant inlet, and a liquid product outlet; a material collector is connected with the liquid product outlet; the arc plasma array is composed of high voltage electrodes, low voltage electrode caps, and an insulation medium; the low voltage electrode caps are provided with holes used for spraying out of generated plasmaplumes; an outer layer insulation medium is connected with the low voltage electrode caps through sealing connection; the upper part of the outer layer insulation medium is provided with a gas inlet,and is communicated with the gas inlet of the reaction tank through a connecting pipe. When the arc plasma reactor is used for conversion of heavy oil to light fractions, heavy oil coking reaction isreduced, hydrogen free radical generation efficiency is increased, and energy conversion efficiency is increased.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method for producing acid by hydrothermally degrading waste liquid crystal display polaroids

The invention provides a method for producing acid by hydrothermally degrading waste liquid crystal display polaroids, which comprises the following steps: crushing waste liquid crystal display polaroids; mixing the waste polaroids with water, and putting the mixture in a reactor, wherein the mass ratio of the waste polaroids to the solvent water is 0.01:1-0.05:1, and the addition amount of the solvent water is 50-80% of the reactor by volume; putting the reactor in a salt-bath furnace, keeping the temperature of the salt-bath furnace at 250-400 DEG C and the pressure at 4.0-25.0Mpa for 1-15 minutes under subcritical reaction conditions of water, taking out the reactor, and cooling to room temperature within 20-40 seconds; and filtering the product, and obtaining the product containing acetic acid or lactic acid from the liquid phase. The hydrothermal degradation of the waste liquid crystal display polaroids can implement unification of destroying, hydrolysis and resource recycling; and the hydrothermal degradation process has the advantages of high speed, small equipment size, wide treatment range, high efficiency, no secondary pollution and the like. The waste liquid crystal display polaroids are subjected to hydrothermal recycling, thereby implementing production of acetic acid and lactic acid by hydrothermally degrading the waste liquid crystal display polaroids.
Owner:TONGJI UNIV

Method using blue algae to synthesize phloretin

The invention provides a technical method using 'photosynthetic bacteria', namely blue algae as the substrate organism to synthesize phloretin. The method mainly includes: exogenously expressing 4 coumarate Coenzyme A Ligase (4CL) and Chalcone synthase (CHS) which are two key enzymes for phloretin synthesis in the blue algae so as to use p-hydroxybenzene propanoic acid (also called phloretic acid)as the substrate to catalytically synthesize the phloretin, the 4CL catalyzes single-molecule p-hydroxybenzene propanoic acid to generate p-hydroxybenzene propionyl coenzyme A, the CHS catalyzes three-molecule malonyl coA and the single-molecule p-hydroxybenzene propionyl coenzyme A to synthesize the single-molecule phloretin. The method has the advantages that the phloretin is produced by usingone microorganism which can perform photosynthesis, the phloretin biological synthesizing approach which is cheap in raw material, simple in equipment, low in environment pollution and high in yield is created, and the method conforms to the direction of green production.
Owner:嘉兴欣贝莱生物科技有限公司

Composition for processing biological sample

The invention relates to a composition for processing a biological sample. The composition for processing the biological sample is composed of pharmaceutically acceptable hydroxyethyl starch, a pharmaceutically acceptable ionic iodine contrast agent, an osmotic pressure regulator and a pH value modifier according to the mass ratio of (2.0-12.0):(2.5-12.0):(0-0.4):(0-0.5). A part of parameters exceed the traditional commercially available similar products at home and abroad when the composition provided by the invention is applied to gathering a mononuclear cell and the like in the biological sample. Thus, the composition has higher safety and validity, and the possibility is created for clinical translation of the products.
Owner:BEIJING DONGFANG HUAHUI BIOMEDICAL TECH

Method for producing reducing sugar with agricultural wastes hydrothermal degradation

The invention pertains to the technical field of transforming organic wastes into resources and hydro-thermal reaction, in particular to a method of hydro-thermally degrading agricultural wastes to produce reducing sugar. The invention directly utilizes eco-agricultural wastes as the raw materials and de-ionized water as the solvent and hydro-thermally degrades the agricultural wastes to produce reducing sugar within the temperature range from 250 to 400 DEG C and under the condition of certain reaction time in a special hydro-thermal reaction system. In addition, the invention achieves the control of reducing sugar yield by changing the temperature and the time and adding the additives.
Owner:TONGJI UNIV

Organosiloxane-polypropylene oxide block copolymer and preparation method thereof, prepared two-component LED pouring sealant and preparation method thereof

The invention belongs to the technical field of polymer synthesis, and specifically relates to an organosiloxane-polypropylene oxide block copolymer and a preparation method thereof, a prepared two-component LED pouring sealant and a preparation method thereof. Suitable cyclosiloxane is screened as a starting agent, epoxyalkane is a polymerization unit, a copolymer containing an Si-O-Si chain segment and a C-O-C chain segment is obtained by an anion polymerization technology, an epoxyalkane chain segment is copolymerized in an organosiloxane chain segment, thus a material has high temperatureresistance of silicone resin and weather resistance of polyether polyol, and the material cost is lowered. The two-component LED pouring sealant is prepared from the organosiloxane-polypropylene oxideblock copolymer and a bisphenol A modified polyether polyol prepolymer, and the weather resistance and luminescence performance of an LED can be significantly improved; and the preparation method isscientific, reasonable, simple and easy to operate, and industrial conversion is easy.
Owner:SHANDONG INOV NEW MATERIALS CO LTD

Pre-preparation method of shrimp food dish

The invention provides a pre-preparation method of a shrimp food dish. The method comprises the steps of putting taken shrimp meat into alga or edible fungi pre-prepared liquid, soaking, fishing out the shrimp meat, quickly freezing the shrimp meat, carrying out ice glazing and bagging to obtain a shrimp meat bag; collecting remaining alga or edible fungi pre-prepared liquid after soaking the shrimp meat, seasoning and packaging to obtain a soup bag; packaging cooked vegetables and nuts to obtain a vegetable bag; packaging sesame oil to obtain an oil bag; quickly freezing the vegetable bag, the soup bag and the oil bag; and combining and packing the shrimp meat bag, the vegetable bag, the soup bag and the oil bag together and storing at -20 DEG C. A natural pre-prepared liquid is prepared from the shrimp meat as the raw material and fungi and algae rich in active substances of polysaccharide and the like as auxiliary materials; and the shrimp meat is treated through a molecule penetrating moisture preservation technique, so that improvement of the water binding capacity, the freezing resistance and the browning resistance of raw materials is achieved; the problems that the shrimp meat is easy to blacken and the texture is degraded are solved; related food dishes are developed; and the target of industrialization of traditional Chinese dishes is achieved.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Waste residue-free preparation method of O,O-dialkyl thiophosphoryl chloride

The invention discloses a waste residue-free preparation method of O,O-dialkyl thiophosphoryl chloride, which is characterized by comprising the following steps: by taking dialkyl chlorophosphite as an intermediate, performing chlorination with O,O-dialkyl phosphorodithioate under the effect of strong Lewis acid metal chloride to prepare O,O-dialkyl thiophosphoryl chloride with the structural general formula shown in the specification, wherein the chemical equation is shown in the specification. The method for preparing high-content O,O-dialkyl thiophosphoryl chloride, disclosed by the invention, has the advantages of simple process route, mild reaction conditions, simple after-treatment and low production cost, and is convenient for industrial transformation; and the method avoids or reduces pollution, strictly controls the process, saves after-treatment and prevents the generation of viscose waste sulfur residues.
Owner:秦小林

Method for preparing Nano/micro crystal of rare earth vanadate from oxide as precursor body under low temperature

This invention relates to a method for preparing rare earth vanadate nano- and micro-crystals from oxide precursors at a low temperature. The method uses insoluble rare earth oxide and V2O5 as the precursors to directly synthesize rare earth vanadate nano- and micro-crystals by hydrothermal reaction at 120-240 deg.C for a certain time. Besides, the morphology and crystal structure and the product can be controlled by changing the reaction temperature and time as well as adding the additive.
Owner:TONGJI UNIV

Method for biosynthesis of magnolol

The invention relates to a method for biosynthesis of magnolol. The method adopts 4-allylphenol as the raw material, and uses laccase as the catalyst for catalysis to complete preparation. The differences between the method and the prior art lie in that: 1) a low-cost compound is taken as the raw material, and the raw material cost of the process is low; 2) on the basis of enzyme reaction, the reaction speed is quick, the selectivity and specificity are good, and the reaction conditions are mild; 3) the process has smaller scale and number of production equipment than other methods, is simplein operation, and is easy for industrial transformation; 4) the method only has separation and purification process in the final step of production, the product purification process is simple, and theproduct has better purity and higher content than general methods; and 5) the synthetic process has no waste liquid emission, is environment-friendly and pollution-free, and can achieve sustainable production. The process adopted by the invention is an excellent industrial production route from the perspectives of economy, environment and occupational health.
Owner:嘉兴欣贝莱生物科技有限公司

Flotation method for efficiently purifying phosphogypsum

The invention discloses a flotation method for efficiently purifying ardealite, and relates to the technical field of ardealite treatment. The method comprises the following steps: pumping ardealite from a transfer table filter in wet-process phosphoric acid production into a pump pool to make slurry, pumping the slurry into a high-frequency vibrating screen for screening, feeding oversize + 100-mesh coarse-grained products into a tailing slag warehouse, and pumping undersize-100-mesh products into a hydrocyclone for grading; an overflow product in the hydrocyclone enters a tailing collecting tank, and a sand setting product in the hydrocyclone enters a dewatering screen; undersize products of the dewatering screen enter a tailing collecting tank, oversize products of the dewatering screen enter a mineralization tank, filter pressing return water is added for size mixing, lime powder is added to adjust the pH value, and an efficient desilicication collecting agent is added for sufficient mixing; the mixed slurry is pumped into a flotation device through a conveying pump for reverse flotation, flotation concentrate enters a concentrate intermediate tank, the slurry in the concentrate intermediate tank is pumped into a filter press, a product obtained after filter pressing is a purified ardealite product, and filter press filtrate serves as filter pressing return water and returns into the mineralization tank for recycling.
Owner:YUNNAN PHOSPHATE CHEM GROUP CORP

Nitrogen-phosphorus co-doped carbon fiber loaded CoP composite material, preparation method and application thereof, and aluminum air battery

The invention belongs to the technical field of catalysts, and particularly relates to a nitrogen-phosphorus co-doped carbon fiber loaded CoP composite material, a preparation method and application thereof, and an aluminum air battery. The invention provides a nitrogen and phosphorus co-doped carbon fiber loaded CoP composite material, which comprises nitrogen and phosphorus co-doped carbon fibers, nitrogen and phosphorus co-doped ZIF-8 derived spherical carbon and CoP particles, the nitrogen and phosphorus co-doped ZIF-8 derived spherical carbon coats the CoP particles, and the nitrogen and phosphorus co-doped carbon fibers are loaded on the surface of the nitrogen and phosphorus co-doped ZIF-8 derived spherical carbon. According to the invention, N atoms on ZIF-8 have Lewis alkalinity, and the pore structure is beneficial to adsorption of acidic carbon dioxide, has a good barrier effect on carbon dioxide, and can permeate oxygen at the same time. The nitrogen and phosphorus co-doped modified ZIF-8 derived spherical carbon and the carbon fiber form a carbon-based framework, so that the oxygen reduction reaction activity of the catalyst is improved.
Owner:易航时代(北京)科技有限公司

Maize yellow pigment extracting technology

The invention relates to the technical field of deep processing of maize protein powder, in particular to a method for extracting maize yellow pigment from maize protein. The method includes: subjecting the maize protein powder to superfine grinding to obtain 300-500-mesh superfine powder, adding water, xylanase and aspergillus oryzae protease for enzymolysis, centrifuging enzymatic hydrolysate and getting rid of supernatant so as to obtain precipitate; adding ethanol into the precipitate, extracting in a microwave reaction system and collecting supernatant; removing protein from the supernatant, subjecting filtrate to concentration under reduced pressure to obtain paste and subjecting the paste to vacuum freeze drying till constant weight is reached. The method has the advantages that the xylanase and the aspergillus oryzae protease are used for enzymolysis of superfine maize protein powder so as to facilitate increase of maize yellow pigment extracting ratio; superfine grinding is more beneficial to dissolution of the maize yellow pigment during extraction.
Owner:丁春燕

Method for synthesizing tagatose from cyanobacteria

The invention relates to a method for synthesizing tagatose from cyanobacteria. The method comprises the following steps: 1), firstly, according to an NSI gene of cyanobacteria Syn7942, constructing an integrated vector NSI, and then inserting HXK, FbaA and phytase genes into the vector NSI to obtain a required recombinant vector NSI-HFP; 2), transforming the vector NSI-HFP into cyanobacteria Syn7942 cells, and then preliminarily screening out monoclonal transgenic cyanobacteria Syn7942 through a chloramphenicol solid culture medium; 3), transferring the screened monoclonal transgenic cyanobacteria Syn7942 to a liquid culture medium with chloramphenicol resistance, and extracting a cyanobacteria genome for PCR verification of a target gene; 4), culturing the monoclonal transgenic cyanobacteria Syn7942 under a proper condition, and adding IPTG for inducing expression of the HXK, FbaA and phytase genes, and synthesizing the tagatose by enzymes by using fructose produced by photosynthesisof the cyanobacteria as a substrate; 5), performing separation and purification. By the method, when the tagatose is synthesized through transformation of the cyanobacteria as substrate organisms, only sunlight and moisture and the like are required as production raw materials, production equipment and a production environment are easy to construct, and the production cost is greatly reduced.
Owner:嘉兴欣贝莱生物科技有限公司

A method for producing acrylic acid by fermentation of Saccharomyces cerevisiae

The invention relates to a method for fermenting and producing acrylic acid by Saccharomyces cerevisiae. Glycerol is used as a raw material, Saccharomyces cerevisiae is used as a host bacterium, and the method is catalyzed by several enzymes in the host bacterium. Beneficial effects of the present invention: 1) low-cost compounds are used as raw materials, and the raw material cost of the process is low. 2) Based on the technology of transforming microorganisms, the catalytic synthesis of biological enzymes is carried out in microorganisms, avoiding large-scale extraction, separation and purification processes, and easy to control in terms of production costs and environmental friendliness. 3) This process is less than other methods in terms of scale and quantity of production equipment, simple operation, and easy industrial transformation. 4) This process only has a separation and purification process in the final step of production. The product purification process is simple, and the product quality is better than the general method with better purity and higher content. 5) There is no waste liquid discharge in the synthesis process, which is environmentally friendly, pollution-free, and sustainable production.
Owner:SHENZHEN INNOVATION CENT OF SMALL MOLECULE DRUG DISCOVERY CO LTD

An arc plasma reactor and a method for lightening heavy oil

The invention discloses an arc plasma reactor and a method for lightening heavy oil. The plasma reactor includes a reaction tank and a plasma array arranged in the reaction tank; the reaction tank is provided with a gas inlet, a gas outlet, The reactant inlet and the liquid product outlet, the material collector is connected with the liquid product outlet; the arc plasma array is composed of a high-voltage electrode, a low-voltage electrode cap and an insulating medium, and the low-voltage electrode cap is provided with a plasma plume jet for generation The outer insulating medium is sealed and connected to the low-voltage electrode cap, and there is a gas inlet above the outer insulating medium, which communicates with the gas inlet of the tank through a connecting pipe. When the plasma reactor of the present invention is used in the lightening reaction of heavy oil, the coking reaction of heavy oil can be reduced, the hydrogen free radical generation efficiency can be increased, and the energy conversion efficiency can be improved.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method of greenly preparing rare-earth potassium orthophosphate nano/micro crystal

The invention belongs to the field of micro / nano material preparation technology and hydrothermal synthesis technology, and specifically relates to a green method for preparing rare earth orthophosphate nano / micro crystals. The specific steps are: use phosphorus pentoxide or phosphoric acid and rare earth metal oxides as precursors, use deionized water or absolute ethanol as solvent, place them in a container, and the molar ratio of phosphorus pentoxide or phosphoric acid and rare earth metal oxides 1 to 200, the amount of solvent added is 50-80% of the volume of the container; put the container containing the mixture in a temperature-controlled furnace, and increase the temperature at a rate of 8.5-11.5°C / min, according to the requirements of different characteristics of the product to be obtained, In the range of 100°C-250°C, keep at a certain temperature and heat at a constant temperature for 1-48 hours, take out the container, and naturally cool to room temperature; wash and centrifuge to obtain the desired product. The invention realizes that in a specific hydrothermal reaction system, the insoluble rare earth oxides and phosphorus pentoxide or phosphoric acid in the normal state are directly used as precursors, and through changes in temperature and time, the proportion of reactants and additives Addition can control the morphology and crystal form of the product.
Owner:TONGJI UNIV

O, O-dialkylphosphoryl thiochloride preparation method without waste residue

The invention discloses a method for preparing O, O-dialkylthiophosphoryl chloride without waste residue, which is characterized in that: the method comprises using dialkyl chlorophosphite as an intermediate, and reacting with a strong Lewis acid metal chloride under the action of a strong Lewis acid metal chloride O, O-dialkyl phosphorothioate is chlorinated to prepare O, O-dialkylphosphorothiochloride of the following general structure: the chemical reaction equation is as follows: the invention provides a simple process route, reaction Mild conditions, simple post-treatment, low production cost, and a process method for preparing high-content O, O-dialkylphosphoryl thiochloride, which is convenient for industrial transformation; the method eliminates or reduces pollution, strictly controls the process and eliminates post-treatment Generation of sticky sulfur residues.
Owner:秦小林

Method for producing acid by hydrothermally degrading waste liquid crystal display polaroids

The invention provides a method for producing acid by hydrothermally degrading waste liquid crystal display polaroids, which comprises the following steps: crushing waste liquid crystal display polaroids; mixing the waste polaroids with water, and putting the mixture in a reactor, wherein the mass ratio of the waste polaroids to the solvent water is 0.01:1-0.05:1, and the addition amount of the solvent water is 50-80% of the reactor by volume; putting the reactor in a salt-bath furnace, keeping the temperature of the salt-bath furnace at 250-400 DEG C and the pressure at 4.0-25.0Mpa for 1-15 minutes under subcritical reaction conditions of water, taking out the reactor, and cooling to room temperature within 20-40 seconds; and filtering the product, and obtaining the product containing acetic acid or lactic acid from the liquid phase. The hydrothermal degradation of the waste liquid crystal display polaroids can implement unification of destroying, hydrolysis and resource recycling; and the hydrothermal degradation process has the advantages of high speed, small equipment size, wide treatment range, high efficiency, no secondary pollution and the like. The waste liquid crystal display polaroids are subjected to hydrothermal recycling, thereby implementing production of acetic acid and lactic acid by hydrothermally degrading the waste liquid crystal display polaroids.
Owner:TONGJI UNIV

Device and method for uniform treatment of aqueous solution by plasma jet array

The invention relates to a device for uniformly treating aqueous solution by utilizing a plasma jet array. The plasma jet array structurally comprises multiple plasma jet devices with the same structure; each plasma jet device comprises an insulating medium I, a metal ring I and a metal ring II respectively surround the upper part and the lower part of each insulating medium I; a power supply comprises a high pressure pole and an earth pole which are respectively connected with the metal rings I and the metal rings II; the plasma jet array structure can be applied to large-area aqueous solution treatment; a fountain type water column can guarantee uniformity and continuity of aqueous solution treatment; the plasma jet array structure is separated from aqueous solution in a water treatment device, and distance between the plasma jet array structure and the water treatment device can be adjusted, so that plasma discharge is not influenced by the aqueous solution, and discharging stability is realized. The device for uniformly treating the aqueous solution by utilizing the plasma jet array is wide in application range and can be applied to industrial wastewater treatment and sewage treatment, sterilization of the aqueous solution and preparation of disinfectant fluid, and no secondary pollution can be produced; meanwhile, the structure is simple, the cost is low, the operation is easy, the production can be amplified, and the industrialization can be easily realized.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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