45 results about "Placing reaction" patented technology

The invention provides a preparation method of N-doped carbon quantum dots. The preparation method comprises the steps of mixing lignin and deionzed water, adjusting pH of a system to be alkaline, heating and stirring for the first time to obtain lignin dispersion liquid; adding a carboxylation agent and an activating agent into the lignin dispersion liquid, stirring and reacting at constant temperature, after the completion of the reaction, performing centrifugal treatment, collecting a slurry state product, and drying to obtain carboxylated lignin; mixing the carboxylated lignin and deionzed water, heating and stirring for the second time to obtain carboxylated lignin dispersion liquid; adding an amination agent into the carboxylated lignin dispersion liquid, and stirring and reacting at constant temperature to obtain aminated lignin dispersion liquid; transferring the aminated lignin dispersion liquid into a high pressure reactor, performing constant-temperature hydrothermal reaction at 120 to 200 DEG C for 3 to 5h, then taking out, and placing reaction liquid into a mixture of ice and water to cool to room temperature; performing centrifugal treatment, dialysis and drying in sequence to obtain the N-doped carbon quantum dots.

The invention discloses a magnetic micro-particle chemiluminescence immunity analyzer multi-channel parallel method which includes the steps: detachably placing reaction cups into cup strips and injecting detection samples in at least two sample injection channels; conveying the cup strips to at least two reagent injection channels, injecting detection reagents into the reaction cups and conveying the reaction cups to a reagent mixing channel; conveying the reaction cups to an incubation system and incubating the detection samples in the reaction cups; conveying the reaction cups to at least two washing channels for washing; conveying the cup strips to a substrate injection and mixing channel and injecting substrates; conveying the cup strips to a detection waiting channel and waiting for detection; grabbing the reaction cups in the detection waiting channel to a detection system one by one for detection; conveying empty cup strips to the sample injection channels. Detection efficiency is greatly improved while detection flexibility is ensured, the cup strips can be recycled, fewer consumable items are consumed, and detection cost is low.

The invention belongs to the technical field of deep processing of rapeseed cake byproducts, and particularly relates to a preparation method and applications of rapeseed cake-sourced metal chelating peptide and peptide metal chelate. The preparation method comprises the steps: soaking and cleaning rapeseed cakes with ethanol and water in sequence, and performing solid-liquid separation to reserve a filter cake, thus obtaining a crude rapeseed protein product; adding water into the crude rapeseed protein product, regulating the pH value, then adding protease for hydrolysis reaction, then placing reaction liquid into boiling water for cooking and carrying out enzyme deactivation, to obtain hydrolysate; or, adding the protease for hydrolysis reaction, then placing reaction liquid into an autoclave for high-pressure treatment, to obtain the hydrolysate with higher hydrolysis degree; and centrifuging the hydrolysate, and drying supernate to obtain crude metal chelating peptide powder. The prepared metal chelating peptide prepared by the preparation method disclosed by the invention can be directly used as a natural antioxidant for retarding aging. In addition, the metal chelating peptide can also be used for preparing an excellent parent of the peptide metal chelate, and can be chelated with different microelements to prepare a micro trace chelating agent for supplementing nutrient elements which are lack by the human body.

The invention discloses a preparation method of a magnetic sludge-based ozone catalyst. The preparation method comprises the following steps: (A1), mixing modified sludge with a manganese nitrate solution, standing for 2-48 hours, introducing ozone into the solution and stirring, placing reaction liquid in a reaction kettle in an oven and performing hydrothermal reaction at the temperature of 100-300 DEG C for 6-10 hours, naturally cooling to room temperature after the hydrothermal reaction, cleaning, and drying to obtain the sludge-based catalyst; and (A2) respectively preparing a FeCl3 aqueous solution and a FeSO4 aqueous solution, uniformly mixing the FeCl3 aqueous solution and the FeSO4 aqueous solution and sufficiently stirring so that the mol concentration ratio of the Fe<3+> to Fe<2+> in the mixed solution is 2: 1, adding ammonium hydroxide to the mixed solution and stirring to guarantee that the pH value is 11-12, adding the sludge-based catalyst and stirring, performing water-bath aging, rinsing and drying to obtain the magnetic sludge-based ozone catalyst. The preparation method is simple to operate, environmentally friendly, low in cost and has industrial application prospect.

The invention relates to a preparation method of a titanium dioxide/titanium oxydifluoride composite gas-phase photocatalyst. The preparation method includes the steps: first, uniformly stirring and mixing hydrofluoric acid and methylbenzene according to the volume ratio of 1:(0.4-2.5); second, adding a titanium source into solution obtained in the first step, and uniformly stirring and mixing thesolution and the titanium source; third, placing reaction liquid obtained in the second step under the condition of 180-200 DEG C and performing reaction for 1-24 hours; fourth, performing post-treatment on a product obtained in the third step to obtain the titanium dioxide/titanium oxydifluoride composite gas-phase photocatalyst. The proportion of the titanium source to the hydrofluoric acid is25g:(1-4)mL. The microstructure of the titanium dioxide/titanium oxydifluoride composite gas-phase photocatalyst is a porous hierarchical structure micro-sphere comprising nano-sheets and is an anatase titanium dioxide/titanium oxydifluoride composite phase structure. The photocatalyst has excellent gas-phase photocatalytic performances, can be recycled and has important application values in terms of removal of VOC (volatile organic compounds).

The invention provides a tube bundle type photobioreactor. The tube bundle type photobioreactor comprises n*m tube bundle assemblies, wherein n tube bundle assemblies are arranged in one direction side by side and are connected in parallel to form a tube bundle assembly group; m tube bundle assembly groups are arranged in one direction side by side and are connected in series to form the tube bundle type photobioreactor; each tube bundle assembly comprises p horizontally placed reaction tubes which are arranged in one direction side by side, the n is larger than or equal to 1, the m is larger than or equal to 2, and the p is larger than or equal to 2. The invention further provides the reaction tube for the tube bundle type photobioreactor.

The invention discloses a preparation method of hydrophobic ultrafine silicon dioxide for a coating agent. The preparation method includes steps: (1) well mixing dry powdered silicon dioxide being 8-12micron in particle size and dry powdered silicon dioxide being 3-7micron in particle size in a glass container; (2) mixing formic acid aqueous solution being 2% in weight percent with methyl alcohol, slowly pouring formic acid and methyl alcohol mixed solution into the glass container, and keeping stirring for 20-40min; (3) atomizing a hydrophobic modified silane coupling agent, uniformly spraying into the glass container, and stirring at a constant speed to allow complete reaction of raw materials for 30-60min at a reaction temperature of 40-70 DEG C; (4) hermetically placing reaction products, and ageing for 3-6h; (5) drying the aged materials, and performing airflow ultrafine grinding to obtain a finished product. The preparation method of hydrophobic ultrafine silicon dioxide for the coating agent has the advantage that an uneven state is achieved while a hydrophobic property of silicon dioxide on the surface of the coating agent is realized.

The invention discloses a device for removing quartz from a monocrystalline silicon pot material, which is characterized in that a heater and a temperature control displayer are respectively arranged on the inner wall and the outer wall of a heat preservation cylinder; a reaction kettle is placed on a bottom bracing on the inner bottom surface of the heat preservation cylinder; the reaction kettle and the heater are distributed concentrically; the heat preservation cylinder is equipped with an upper cover plate; and the reaction kettle is equipped with a reaction kettle cover plate. The invention additionally discloses a method for removing the quartz from the monocrystalline silicon pot material by using a thermostatic waterbath method, which comprises the steps that the device is utilized; tap water is filled into the heat preservation cylinder; then the silicon raw material from which the quartz is to be removed is loaded into the well-placed reaction kettle; afterwards, hydrofluoric acid is added into the reaction kettle, and the reaction kettle cover plate and the upper cover plate are well covered and closed; and related working parameters are started and set through the temperature control displayer, and the quartz is removed from the silicon raw material after the reaction requirements are met. By adopting the device and the method, the reaction speed of the hydrofluoric acid and the pot material is remarkably increased at room temperature, the cycle is shortened and the efficiency is improved.

The invention belongs to the technical field of carbon steel acid pickling, and discloses a composite pickling inhibitor containing Schiff base and a preparation method of the composite pickling inhibitor. The preparation method of the composite pickling inhibitor comprises the following steps: adding 60 mL of a trichloromethane solution in a three-necked flask, then adding 5.35 g of pyridine-2-formaldehyde and 7.45 g of methionine, magnetically stirring, heating and refluxing for 1 h until all solids are totally dissolved, dropwise adding 5 drops of glacial acetic acid as a catalyst and adjusting the pH value of reaction liquid, continuing to heat and carry out refluxing reaction for 24 h, then stirring and reacting for 2 h at the room temperature, placing reaction liquid in a refrigerator for cooling and crystallizing, carrying out suction filtration under reduced pressure to remove a solvent to obtain brown solids, carrying out recrystallization via methanol, drying under vacuum toobtain a methionine Schiff base derivative, weighing the methionine Schiff base derivative and sodium carboxymethylcellulose and compounding the methionine Schiff base derivative and the sodium carboxymethylcellulose according to a certain mass ratio to obtain the composite pickling inhibitor. The provided composite pickling inhibitor has excellent buffering performance for carbon steel metal in 0.5 M of a hydrochloric acid solution, the corrosion inhibition efficiency can reach 94% or above, the use amount of a corrosion inhibitor is small, and the shortcoming of a single methionine corrosioninhibitor in a using process is overcome.

The invention discloses a spheroidisation reaction package for producing ductile cast iron and a spheroidisation method therefor, belonging to the field of casting. The reaction package is composed of a package body, a package wall and a rotatable fishhook; wherein, the fishhook is connected with the package body by a bolt; the reaction package is characterized in that a convex plate with a groove is arranged at the bottom part of the package body, the convex plate is located at one side of the center of the package bottom; a reaction tube is arranged in the groove, three small air holes are arranged on tube wall of the reaction tube and are on a straight line. When the reaction tube is filled with nodularizers, under the heat effect of molten iron, the thinnest part of the tube wall of the reaction tube begins to melt; with the gradual melting of the tube wall, the nodularizers sequentially enter the molten iron to facilitate the nodularization reaction to be carried out under controllable conditions; as passivation magnesium serves as the nodularizers, thus putting off the reaction time between the magnesium and the molten iron, lengthening the contact time between magnesium vapor and the molten iron, improving absorptivity of the molten iron and increasing nodularization effect of magnesium.

The invention discloses a method for preparing strontium-rich activated carbon by the aid of hydrothermal processes. The method includes steps of a), pretreating activated carbon, to be more specific,placing the proportioned activated carbon in diluted edible hydrochloric acid solution, heating the proportioned activated carbon in the diluted edible hydrochloric acid solution, carrying out impurity removal cleaning, further carrying out suction filtration, repeatedly washing the activated carbon, washing off surface residual acid liquid, boiling the activated carbon by water, then repeatedlyrinsing the activated carbon until the pH (potential of hydrogen) value of the activated carbon is 6.5-8.5, placing the activated carbon in drying ovens and drying the activated carbon for standby application; b), impregnating and loading strontium salt, to be more specific, slowly adding the pretreated proportioned activated carbon into impregnation liquid with diffusing agents and coupling agents, impregnating and stirring the activated carbon for 10 min, then adding strontium salt solution into the impregnation liquid and uniformly mixing and stirring the strontium salt solution and the activated carbon with each other in the impregnation liquid; c), carrying out hydrothermal reaction procedures, to be more specific, placing impregnated activated carbon solution in hydrothermal reactionkettles, keeping the temperatures constant for 2-6 hours after the hydrothermal reaction temperatures are increased and reach 130-250 DEG C and the pressures of the reaction kettles reach approximately 1MPa, carrying out still standing and temperature reduction after reaction is completely carried out, carrying suction filtration and cleaning, washing off surface residual impregnation liquid, then placing reaction products in drying ovens, and drying the reaction products at the temperatures of 120-150 DEGC to obtain the impregnated-hydrothermal strontium-rich activated carbon.

The invention provides a synthesis method of arsenic trichloride. The synthesis method of arsenic trichloride comprises the following steps: S1, adding arsenic trioxide into concentrated hydrochloricacid, starting to stir and enabling the arsenic trioxide and the concentrated hydrochloric acid to react, after reaction is finished, continuing stirring and adding the concentrated hydrochloric aciduntil completely dehydrated, placing reaction liquor in a liquor separating device and standing for layering, and then collecting liquid on the lower layer to obtain coarse arsenic trichloride; and S2, placing the coarse arsenic trichloride in a distilling device, heating for distilling and purifying, and collecting fractions at the temperature of 130-135 DEG C to obtain transparent and clear arsenic trichloride liquid. The synthesis method has the advantages of high purity of products, high synthesis yield, low cost, easiness in control of a process, stable process and low requirement for equipment, and thus, the synthesis method is suitable for large-scale industrial production.

The invention discloses a device used for cleaning a reaction container. The device comprises a cleaning box body. A closing door used for closing the cleaning box body is hinged to the side wall of the cleaning box body. Supporting shafts and an air cylinder are vertically arranged at the bottom in the cleaning box body. When the air cylinder is in a contracted state, the height of the air cylinder is equal to that of the supporting shafts. A supporting table is hinged to the supporting shafts and the air cylinder. A containing groove used for containing the reaction container is formed in the supporting table. An elastic layer is arranged in the containing groove. A cleaning brush is connected to the upper wall of the cleaning box body in a sliding manner. The cleaning brush is located over the containing groove. A draining channel is arranged on the side, close to the supporting shafts, of the cleaning box body. By the implementation of the technical scheme, the problem of potential safety hazards existing in the cleaning process of an existing reaction device is solved.

The invention discloses a horizontal multi-shaft bearing type solid-phase reaction kettle. According to the horizontal multi-shaft bearing type solid-phase reaction kettle, the problems of low production efficiency and heating efficiency of a solid-phase reaction kettle in the prior art are solved. The reaction kettle comprises a horizontally placed reaction kettle cylinder body, wherein at leasttwo hollow-structure stirring shafts are rotatably arranged in the reaction kettle cylinder body side by side, two rows of circumferentially-symmetric stirring paddles are fixed on each stirring shaft, and the stirring paddles are of a hollow fan-shaped structure; inner pipes synchronously rotating with the stirring shafts are formed in inner cavities of the stirring shafts, each inner pipe is communicated with each stirring paddle through a first communication pipe, and each stirring shaft is communicated with each stirring paddle through a second communication pipe; and hot medium inlets areformed in one ends of the inner pipes, hot medium outlets are formed in one ends of the stirring shafts, and the other ends of the inner pipes are closed. The horizontal multi-shaft bearing type solid-phase reaction kettle is simple in structure and convenient to use and has very high practicability, and the production efficiency and heat transfer efficiency of the reaction kettle are higher thanthe production efficiency and heat transfer efficiency of a traditional reaction kettle.

The invention discloses a device and method for smelting lithium through vacuum thermal reduction of metal. The device comprises a heating resistance furnace and a reaction tank, wherein a charging basket, a movable support and a supporting cylinder are placed in the reaction tank; the movable support is placed at the top of the charging basket, and the supporting cylinder is placed on the movable support; and a collector is placed on a fixed support, and a condenser is placed on the collector. The method comprises the following steps of (1) placing reaction materials for smelting lithium into the charging basket; (2) sealing the reaction tank, vacuumizing, introducing cooling water, heating the materials in the charging basket, and carrying out vacuum thermal reduction reaction; condensing lithium metal steam on the condenser, and then, enabling the lithium metal steam to enter the collector; and (3) stopping heating, introducing inert gases to a normal-pressure environment, and cooling the reaction tank to normal temperature to obtain lithium metal in the collector. The device disclosed by the invention is simple in structure, convenient to operate and suitable for large-scale production; and due to the combination of the charging basket, the movable support and the supporting cylinder, the materials can be more conveniently placed and taken out.

The invention discloses an automatic cup arrangement mechanism and a full-automatic chemiluminescence immuno-analyzer, and relates to the technical field of medical devices. The automatic cup arrangement mechanism comprises a bracket, a cup storage device, a cup dividing device and a transmission device; a temporary reaction cup storage device is arranged at the tail end of the transmission device; the cup storage device comprises a cup storage cabin; a cup outlet is arranged at the bottom of the cup storage cabin; the cup dividing device comprises a cup dividing wheel and a first driving unit; multiple arc teeth used for placing reaction cups are uniformly arranged on the outer edge of the cup dividing wheel; when the first driving unit drives the cup dividing wheel to rotate, the highestpoint of the arc teeth is over the cup outlet; the transmission device comprises a guide groove; two guide rails, which are parallel to each other, are arranged at the tail end of the guide groove; the tail ends of the two guide rails extend to the temporary reaction cup storage device; and the temporary reaction cup storage device comprises a temporary reaction cup storage disk and a second driving unit. The automatic cup arrangement mechanism in the invention is simple in structure and low in operating failure rate.

The invention provides an apparatus for picking-up and placing a reaction cup. The apparatus for picking-up and placing the reaction cup comprises a picking-up mechanism, a moving mechanism, a cup removing mechanism and a driving mechanism. The picking-up mechanism is in contact with the inner wall of the reaction cup for picking up the reaction cup. The moving mechanism is fixedly connected withthe picking-up mechanism so as to drive the picking-up mechanism to move. The cup removing mechanism is arranged on the outer side of the picking-up mechanism in a sleeving mode and fixedly installedon a shell body. The picking-up mechanism moves relative to the reaction cup, and the placement of the reaction cup is realized. The driving mechanism is fixedly installed on the shell body, and is connected to the moving mechanism so as to drive the moving mechanism. The invention further relates to a method for picking-up and placing the reaction cup and equipment comprising the apparatus for picking-up and placing the reaction cup. The apparatus for picking-up and placing the reaction cup relies on the deformation of the reaction cup to generate frictional force, the problem of loss of thereaction cup picking apparatus does not exist, thus, the service life of the reaction cup picking apparatus is ensured, and maintenance cost of the equipment is reduced. The reaction cup picking scheme is that a reaction cup picking rod actively exits from the reaction cup, the risk of liquid spilling from the reaction cup is avoided, and thus the detection accuracy and detection efficiency are ensured.

A method for synthesizing penicillin sodium salt and potassium salt is disclosed, comprising the steps of: adding dried amoxicillin trihydrate 3-8 into a three-necked flask having the volume of 250 ml; then adding 30-60 ml of absolute methanol and 0.5-5 ml of anhydrous triethylamine into the three-necked flask for being dissolved by sufficient stirring; placing the three-necked flask filled with dissolving solution in ice bath and instilling slowly 3-5 ml of methanol solution of sodium methoxide or potassium methoxide with the concentration of 0.1 mol/L for 5-60 minutes by using a dropping pipette when the temperature drops to the range from 0 DEG C to 15 DEG C; reacting for 20 to 30 minutes under stirring after the pH value reaches 9 to 10, afterwards, placing reaction solution in a rotary evaporator with the temperature of a water-soluble pot being 40-60 DEG C and the pressure being 0.09-0.1 MPa, and obtaining wet penicillin sodium salt or potassium salt subsequent to emptying solvent in the rotary evaporator, in the end, conveying the obtained wet penicillin sodium salt or potassium salt to a vacuum drying oven for being dried for 5-6 hours at the temperature from 40 to 45 DEG C under the pressure from 0.09 to 0.1 MPa, thus resulting in the finished product. The invention has the advantages of simple process, rapidness, high conversion rate of salification and low cost.

The invention discloses a yellow fluorescent graphene quantum dot, a method for preparing the same and application of the yellow fluorescent graphene quantum dot. The method includes steps of S1, mixing Julolidine solid, absolute ethyl alcohol liquid and acetic acid liquid with one another according to a feed ratio of 0.1 g:30 mL:2 mL and then carrying out ultrasonic treatment under the room-temperature condition for 10 minutes; S2, placing reaction liquid in high-pressure reaction kettles after the ultrasonic treatment is carried out on the reaction liquid, and preparing graphene quantum dotsby the aid of solvothermal processes; S3, purifying reaction liquid by the aid of dialysis processes and concentrating, freezing and drying dialysate to obtain the yellow fluorescent graphene quantumdot. The yellow fluorescent graphene quantum dot, the method and the application have the advantages that the method includes simple technologies and is low in cost, the yellow fluorescent graphene quantum dot prepared by the aid of the method has uniform particle sizes, is nontoxic, can be used as a fluorescent probe to be directly applied to detecting thiosulfuric acid radicals and hydrogen peroxide in water samples and serum from human bodies and can be conveniently and quickly operated, and accurate detection results can be obtained.

The invention provides a cup lifting device and a reaction cup loading system. The cup lifting device comprises a rotary member capable of rotating about the own axis and a drive motor for driving therotation of the rotary member, and further comprises a supporting member. The rotary member is provided with a plurality of reaction cup mounting grooves for placing reaction cups in an up-down penetrating mode. The supporting member is provided with an inclined surface located on the lower side of the reaction cup mounting grooves, and the distance between the reaction cup mounting grooves and the inclined surface is varied as the rotary member rotates. The drive motor drives the rotation of the rotary member to enable the reaction cups to be lifted by the inclined surface, so that a grippercan conveniently take the reaction cups away.

The invention discloses a preparation method for a porphyrin-functionalized titanium dioxide-montmorillonite nano-complex. The preparation method comprises the following steps: adding tetrabutyl orthotitanate into absolute ethyl alcohol, and stirring to obtain a transparent solution I; slowly adding the transparent solution I into nitric acid solution dropwise to obtain a solution II; adding montmorillonite into deionized water to prepare montmorillonite suspension III; slowly adding the solution II into the montmorillonite suspension III, and stirring to obtain a white solution IV; quickly pouring the white solution IV into a reaction kettle, and placing reaction kettle into a microwave hydrothermal reaction kettle for reacting; after the reaction is ended, naturally cooling to room temperature, then, filtering, performing centrifugal washing, and drying to obtain a product A; dispersing the product A into the deionized water; then, performing mixed reaction with a tetraphenylporphyrin solution; and after the reaction is ended, performing centrifugal treatment, washing and drying to obtain a final product. The nano-complex prepared by adopting the process disclosed by the invention has the advantages that on one hand, the catalytic efficiency of the nano-complex is improved, and on the other hand, the optical response range of the nano-complex is expanded.

The invention provides toothpaste containing citrus bergamot essential oil microcapsules and a preparation method of the toothpaste. The preparation method of the citrus bergamot essential oil microcapsules includes the steps: 1 dissolving beta-cyclodextrin in water to obtain beta-cyclodextrin water solution; 2 dissolving citrus bergamot essential oil in organic solvents to obtain citrus bergamotessential oil solution; 3 adding the obtained citrus bergamot essential oil solution into the obtained beta-cyclodextrin water solution, performing embedding reaction under the conditions of heating,light resistance and sealing, placing reaction liquid into a refrigerator for refrigeration after reaction, and performing vacuum filtration and drying to obtain the citrus bergamot essential oil microcapsules. The citrus bergamot essential oil is embedded and further added into the toothpaste, provides the sensory experience of strong tangerine fragrance in a product and has antibacterial effects.

The invention discloses a reaction vessel conveying part dispatching method, a reaction vessel conveying part dispatching device, and a computer readable storage medium. The dispatching method comprises the steps of retrieving whether a reaction vessel meeting a to-be-captured condition or a to-be-placed condition exists or not; if a first reaction vessel meeting the to-be-captured condition exists, sending a capturing request to a processing part corresponding to the first reaction vessel, and if a second reaction vessel meeting the to-be-placed condition exists, sending a placing request toa processing part corresponding to the second reaction vessel; if the processing part timely processes the capturing request, conveying the first reaction vessel to the processing part corresponding to the first reaction vessel; and if the processing part timely processes the putting request, conveying an empty position to the processing part corresponding to the second reaction vessel. By adopting the reaction vessel conveying part dispatching method provided by the embodiment of the invention, on the premise of simplifying the scheduling, the condition that a later placed reaction vessel finishes reaction in advance can be processed.

The invention discloses a modularized dynamic gas purification tower which comprises a slag collecting tank and a base, wherein one or a plurality of horizontally placed reaction kettles are arranged on the base; the gas circuit connection between reaction kettles is realized through a gas guide pipe; each reaction kettle comprises a reaction kettle shell, a filling box, a sealing ring, a rotating shaft, a bearing base, a liquid draining pipe, a driving wheel, a feeding hole, a dosing pipe and a discharging hole. The modularized dynamic gas purification tower disclosed by the invention can select the assembling quantity of the reaction kettles and the type of the filling material according to the purification treatment requirements for the specific gas type; the modularized dynamic gas purification tower is flexibly used and is suitable for the purification treatment of different types of gases; the reaction kettles are horizontally placed and can be rotated along the axis; the static stacking state of the filling material in the conventional tower can be changed and the filling material can freely move and collide in the reaction kettles, so that the defects of caking, bias flow, flooding and crystallizing can be avoided.