Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

234 results about "Colloidal particle" patented technology

Colloidal particle is a small amount of matter having size typical for colloids and with a clear phase boundary. A group of such particles or being a macromolecule or a molecular aggregate.

Forest steppe fire extinguishing barrier foam and preparation method thereof

The invention discloses forest steppe fire extinguishing barrier foam and a preparation method thereof.The foam is prepared from 5%-20% of a material A, 0.5%-0.8% of a material B, 1.8%-3% of a coagulant and the balance water through a foam generation system; the material A is prepared from 1 to 10 parts of organic aggregate and 100 to 200 parts of inorganic aggregate; the material B is composed of 2-7 parts of a composite surfactant and 1-6 parts of a cross-linking agent; the coagulant is carbon dioxide gas. The inorganic aggregate is condensed under the action of hydrogen ions generated by dissolution of carbon dioxide to form colloidal particles, the colloidal particles are polymerized and crosslinked with the organic aggregate to form a gel skeleton of a three-dimensional network structure, the foam is converted into gel foam, and a heat-insulating and anti-burning barrier layer is formed on the surface of a combustible. The fire extinguishing agent is high in fire extinguishing efficiency, good in heat insulation effect and environment-friendly, and has wide application prospects in forest and grassland fire disasters.
Owner:CHINA UNIV OF MINING & TECH

Compositions and methods for treating tissue products

Compositions and colloidal particles are provided that may be used to improve a tissue making process. The compositions and colloidal particles may include a polymer and an inorganic salt. A tissue making process carried out using the presently disclosed compositions and colloidal particles may produce a tissue product that has high tensile strength and high softness without using either softeners or debonders.
Owner:ECOLAB USA INC

Thermo-sensitive chitosan colloid, preparation method and application of thermo-sensitive chitosan colloid in regulation and control of water-in-water emulsion type

PendingCN120904468AIsopropylSide chain
The invention provides a thermo-sensitive chitosan colloid, a preparation method and application of the thermo-sensitive chitosan colloid in regulation and control of water-in-water emulsion types, N-isopropylacrylamide (NIPAM) is grafted to a chitosan side chain to obtain a polymer with thermo-sensitivity, and then the polymer is induced to form thermo-sensitive responsive chitosan polymer colloid particles (CS-g-PNIPAM CPs) through an external environment. Compared with the prior art, the method has the advantages that the molecular structure is not changed, the hydrophilicity and hydrophobicity of the colloid are changed through external environment stimulation, and the emulsion type is regulated and controlled.
Owner:ANHUI POLYTECHNIC UNIV

Treatment composition and method for treating a water system

Described are treatment compositions for treating a water source, such as a microelectronics process wastewater, and methods of treating the water source. The composition includes one or more of an inorganic salt, a treatment polymer, and a colloidal particle. A flocculant may be added to the water source before or after the inorganic salt, treatment polymer, and colloidal particle. The methods and compositions may be used for treating wastewater, for example.
Owner:ECOLAB USA INC

Preparation method of a colloidal crystal capillary column based on electric field controllable assembly and application thereof

The present application relates to a controllable preparation method of a colloidal crystal capillary column and its application in biomolecule separation, and specifically comprises the following steps: a plunger and an electroosmotic pump are prepared in situ at one end of a capillary; a buffer solution containing monodisperse colloidal particles is filled in an upper reservoir of an electric field assembly device, and a buffer solution is filled in a lower reservoir; the capillary is filled with the buffer solution, and the end of the capillary containing the electroosmotic pump is inserted into the lower reservoir; the dispersion of the colloidal solution is maintained by applying oscillation to the upper reservoir, an electric field is applied between the two reservoirs to make the colloidal particles move to the electroosmotic pump under the action of an electroosmotic flow, and a three-dimensional colloidal crystal is assembled; and the capillary is supplemented with an ultrasonic force to reduce lattice defects. The present application has the advantages of simple preparation process, controlled directional movement of colloidal particles through an electric field, improved assembly efficiency and quality of the three-dimensional colloidal crystal, and controllable assembly of the colloidal particles under the action of an electric field through regulation and control of the length and surface charge of the electroosmotic pump.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

A controllable transport device for inert particles and its usage method

This invention provides a controllable transport device and method for inert particles, including a light spot projection structure, a sample stage, a particle carrier, and a camera. The particle carrier is placed on the sample stage, and the light spot projection structure is located below the sample stage, projecting a light spot onto the particle carrier. The camera is located above the sample stage. The particle carrier includes a photocatalytic film, a cover glass, and a gasket. The gasket is disposed between the photocatalytic film and the cover glass, and a cavity is provided in the center of the gasket. The cavity contains a mixed aqueous solution including fuel liquid and inert colloidal particles. This invention does not require the assistance of an external electric field; it only requires modification of the external excitation light source to enable it to generate microscale light spots through a solid mask or a micro-projector device. The device has a simple structure, is easy to operate, low in cost, and has good controllability.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

A pickering emulsion based on ring-shaped colloidal particles, its preparation method and application in bi-phase interface catalysis

The application discloses a Pickering emulsion based on ring-shaped colloidal particles, a preparation method thereof and application thereof in biphasic interface catalysis. The Pickering emulsion is an oil-in-water emulsion, which comprises a water phase, an oil phase and ring-shaped colloidal particles. The oil phase is dispersed in the water phase in the form of small droplets. The ring-shaped colloidal particles are located at an oil-water interface or at the oil-water interface and the water phase, and the ring-shaped colloidal particles are assembled to form a monolayer structure on the oil-water interface. The Pickering emulsion is not only beneficial to the contact between reactants or between the reactants and a catalyst, but also can enhance the interface mass transfer rate, promote the product to rapidly diffuse from one phase to another phase, has advantages of high conversion rate, high catalytic efficiency, simple product separation and the like, and has an important application prospect in the field of interface catalysis.
Owner:INST OF CHEM CHINESE ACAD OF SCI

Structural color pressure-sensitive film based on hollow polymer colloidal photonic crystal and preparation method and application thereof

The application discloses a structural color pressure-sensitive film based on a hollow polymer colloidal photonic crystal and a preparation method and application thereof, and belongs to the technical field of force-induced color-changing materials. The preparation method of the structural color pressure-sensitive film comprises the following steps: (1) uniformly dispersing core-shell nano colloidal particles in an organic solvent to obtain a colloidal particle dispersion liquid; the shell layer of the core-shell nano colloidal particles is a polymer material, and the core layer is an inorganic oxide; (2) coating the colloidal particle dispersion liquid on the surface of a flexible substrate, and obtaining a precursor photonic crystal film after heating; and after removing the core layer of the core-shell nano colloidal particles in the precursor photonic crystal film by acid treatment etching, the structural color pressure-sensitive film is obtained. The preparation method of the structural color pressure-sensitive film is simple, the conditions are mild, and no pigment dye molecules are needed; by utilizing the pressure deformation and shape memory characteristics of a single hollow polymer colloidal particle itself and the inherent structural color characteristics of a photonic crystal, the structural color pressure-sensitive film can realize the regulation and memory of rich and high-saturation structural colors under the action of pressure.
Owner:HANGZHOU NORMAL UNIVERSITY

Destabilization coagulation separation device

The utility model discloses a destabilization coagulation separation device and relates to the technical field of sewage treatment. Effluent of the coagulation reaction area enters the flocculation reaction area, effluent of the flocculation reaction area enters the shallow settlement area, an inclined plate is arranged in the middle of the shallow settlement area, a rotary mud scraper is arranged at the lower part of the shallow settlement area, supernate of the shallow settlement area enters the gravity settlement area, the gravity settlement area adopts winding corridor type design, and effluent of the gravity settlement area enters the water outlet groove. The device disclosed by the utility model has the beneficial effects that the gravity settling area is arranged behind the shallow settling area, colloidal particles which do not participate in flocculation are settled in the gravity settling area, the settling time of the colloidal particles is prolonged through the ambulatory design of the gravity settling area, and the settled colloidal particles flow back to the coagulation reaction area through the screw pump B to participate in reaction again after being gathered, so that the flocculation effect is improved. The height of the rectangular water outlet groove is in direct proportion to the flow velocity, the lifting height of the lifting rod is observed through the gradienter, the water outlet flow can be calculated, and metering is simple and reliable.
Owner:黑龙江省明峰环保科技股份有限公司

Micro-polluted water purification device and method

The invention provides a micro-polluted water purification device and method, and belongs to the technical field of water treatment. The problems that an existing micro-polluted water purification technology is dual-polarized, purification is not thorough, secondary pollution is prone to being generated, and adaptability is poor are solved. The method comprises the following steps: in a pretreatment unit, intercepting large-particle suspended impurities through a bionic cilium type interception structure, and regularly carrying out backwashing; in the bionic primary filtering unit, colloidal particles, microorganisms and macromolecular organic matters are filtered out through a bionic glomerular filtering structure; in the bionic intermediate purification unit, heavy metal ions and small molecular organic matters are adsorbed through a bionic cell membrane adsorption structure; in the bionic deep filtering unit, deep interception and adsorption are carried out through a bionic root system filtering structure; the effluent quality is detected in the effluent unit, and if the water quality does not reach the standard, the effluent flows back to the water inlet end of the pretreatment unit. By means of physical interception and physical adsorption effects of a biological bionic structure and natural degradation of a biological agent, secondary pollution is avoided.
Owner:NANJING UNIV

Polluted site vertical barrier management and control structure and method based on combination of electrophoresis and microorganisms

The invention discloses a vertical blocking management and control structure and method for a contaminated site through combination of electrophoresis and microorganisms, and relates to the technical field of soil and underground water remediation management and control. An anti-oxidation graphite electrode is inserted into the boundary of a to-be-managed and controlled area of a polluted site to serve as an anode, a microbial bacterial solution and a cementing solution are injected at the same time, an open-screen steel pipe parallel to the anti-oxidation graphite electrode in a staggered mode is inserted into the managed and controlled area to serve as a cathode, and the adjacent anode and cathode are connected with a direct-current power source through a cable to form a plurality of electrode pairs. Under the action of electrophoresis, clay particles with negative charges and other colloidal particles in soil around the boundary of the site move towards the anode, and along with point cementation among soil particles at the anode and continuous deposition of calcium carbonate under the induction of microorganisms, a vertical barrier wall is finally formed. Colloidal particles in the soil are promoted to be cemented through electrophoresis and microorganisms to form a vertical barrier for risk management and control of a polluted site, and the method has the remarkable advantages of being low in building material dependency degree, small in construction disturbance, easy to maintain in the later period and the like.
Owner:JIANGSU ENVIRONMENTAL ENG TECH CO LTD

A nano EUO type zeolite molecular sieve and its preparation method

The present invention provides a nano EUO type zeolite molecular sieve and a preparation method thereof, and relates to the field of molecular sieve technology. The present invention mixes an aluminum source, an inorganic base, water and a template to obtain an aqueous phase; mixes a silicon source and an organic solvent to obtain an organic phase; and mixes the aqueous phase and the organic phase to perform a dynamic hydrothermal reaction to obtain the nano EUO type zeolite molecular sieve. The present invention adopts a phase transfer method, and by dissolving the aluminum source and the silicon source in different aqueous phases and organic phases, avoids direct contact between the two to form large-particle colloidal particles, and also avoids the direct conversion of large-particle colloidal particles into large-particle zeolite crystals; when the raw materials of the organic phase are slowly transferred to the aqueous phase, the growth process of the zeolite crystals is restricted, thereby obtaining a nanometer morphology. The EUO type zeolite molecular sieve synthesized by the phase transfer method of the present invention has a nanometer morphology (50 to 200 nm), a high degree of crystallinity, and the synthesis time of the method of the present invention is short.
Owner:JILIN UNIVERSITY

Double-screw structure of pre-dispersed masterbatch particle extruder

ActiveCN223211880URotational axisMasterbatch
The utility model relates to a double-screw structure of a pre-dispersed master colloidal particle extruder, and aims to solve the problems that the conventional screw is inconvenient to disassemble, and the two screws are possibly abraded and collided due to mutual collision caused by shaking when the screw is directly disassembled. The device comprises a supporting plate, a rotating shaft, an extrusion barrel and a driving gear, an outer frame is fixedly connected to the surface of the supporting plate, the extrusion barrel is movably connected to the inner side of the outer frame in an inserted mode, and inserting grooves are formed in the centers of the left end and the right end of the supporting plate; an insertion plate is transversely and slidably connected to the inner side of the insertion groove, a rotating shaft is rotatably connected to the surface of the side, facing the outer frame, of the insertion plate, a limiting plate is fixedly connected to the outer side wall of the rotating shaft, and threaded cylinders movably sleeve the outer side walls of the rotating shaft and the limiting plate; the connecting structure has the characteristics of simple structure, convenience in disassembly and capability of ensuring that the connection stability is not influenced by repeated disassembly.
Owner:JIANGSU ALTERTECH MATERIAL CO LTD

Composite colloid particle purification device

The utility model discloses a composite colloid particle purification device and relates to the technical field of sewage treatment. A water inlet and a backwashing water outlet are formed in the lower part of the tank body, the tank body is filled with a filter material, the tank body is provided with a fixed screen plate above the filter material, the fixed screen plate is fixedly connected with the tank body, the fixed screen plate covers the sectional area of an inner hole of the whole tank body, the tank body is provided with a floating screen plate below the filter material, and the floating screen plate can move up and down in the tank body. The floating screen plate covers the sectional area of the inner hole of the whole tank body, and the tank body is provided with a supporting plate below the floating screen plate. The utility model has the beneficial effects that during normal filtration, the floating screen plate ascends and compresses a filter material for filtration under the own specific gravity and the pressure of inlet water flow, during backwashing, backwashing water flows downwards from the upper part, the water flow impacts the floating screen plate, the floating screen plate descends, the backwashing water performs backwashing on the loose filter material, and the backwashing effect is good. Due to the design of the floating screen plate, the filter is simple in structure, and the use amount of backwashing water is reduced through air-water mixed backwashing.
Owner:黑龙江省明峰环保科技股份有限公司

Method for inhibiting hydrolysis of leached low-concentration titaniferous solution

The invention discloses a method for inhibiting hydrolysis of a leached low-concentration titaniferous solution. The method comprises the steps that the F value of the low-concentration titaniferous solution is adjusted to be 1.70-1.98, the total titanium concentration is 87.72 g / L to 150 g / L according to the mass of titanium dioxide, and the temperature is 0 DEG C to 55 DEG C. On the basis of an existing sulfuric acid method titanium dioxide process technology, indexes and system properties for leaching the low-concentration titanium solution are regulated and controlled by regulating and controlling the total titanium concentration, the titanium solution temperature and the titanium solution reducibility, hydrolysis of the low-concentration titanium solution is inhibited, poor crystals and colloidal particles are prevented from being formed, a high-quality dilute titanium solution raw material is provided for a hydrolysis section, and the production cost is reduced. The method is simple in process, low in cost and good in hydrolysis inhibition effect when the low-concentration titanium solution is leached.
Owner:PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP +1

Ecological substrate layer for reducing alkali of side slope and preparation method of ecological substrate layer

The invention relates to a side slope alkali-reducing ecological substrate layer and a preparation method thereof. The substrate layer comprises planting soil, a hydraulic inorganic cementing agent, an alkali-reducing composition, a bionic feather structure formed by spraying and adhering carbon fibers and soybean protein fibers, and an additive; the bionic feather structure contains hydrophilic colloidal particles and a halophilic and alkaliphilic biological agent. A slowly-released acidic group is introduced into the alkali-reducing composition, so that alkalinity is continuously neutralized, and the problem that plants are difficult to grow due to the fact that the pH value of soil is maintained to be 11-14 is solved. Moreover, the bionic feather structures dispersed in the matrix form tiny pores, a large amount of air is stored in the tiny pores, a barrier for effectively preventing convection of cold and hot air is formed, and the temperature stability of the matrix layer is improved; the hydrophilic colloidal particles in the matrix can keep the fluffy and breathable properties of the matrix and avoid water loss and vegetation root system damage caused by dry cracks on the surface of a base layer, so that rooting and survival of plants can be restored, and wind erosion resistance and water erosion resistance are also facilitated.
Owner:SHANXI TRANSPORTATION ENVIRONMENTAL PROTECTION CTR STATION CO +1

Method for treating power plant raw water by high charge coagulant aid in cooperation with PAC

The application discloses a kind of high charge coagulant aid synergic PAC's power plant raw water processing method, belong to water treatment technical field.To solve the charge neutralization capacity of existing separate PAC process insufficient, large reagent consumption, effluent aluminum residual risk higher problem, the application simultaneously adds the organic coagulant aid with PAC reagent in raw water, and the charge density of organic coagulant aid is higher than PAC;Organic coagulant aid is preferentially adsorbed on the surface of negatively charged colloidal particles to realize rapid charge neutralization and destabilization, and then combined with PAC to form dense alum flower, significantly reducing PAC demand.The system uses "flow rate proportional feedforward + turbidity feedback" algorithm to automatically adjust the dosage, and controls the proportion by seasons, which can reduce PAC consumption by more than 60%, the turbidity of produced water is stable below 0.6NTU, significantly reducing the operation cost and aluminum residual risk, ensuring the safety of subsequent system, and the alum flower settles quickly, and the effluent water quality is stable and excellent.
Owner:JIANGSU FENGYUAN THERMAL POWER CO LTD

Iron-silicon magnetic material, method for preparing same and use thereof

The application belongs to the technical field of soft magnetic material preparation, and particularly relates to a ferrosilicon magnetic material and a preparation method and application thereof. The preparation method comprises the following steps: (1) mixing ferrosilicon magnetic powder and a passivation agent, and then performing primary heat treatment and cooling to room temperature at a speed of not higher than 30 DEG C / h; (2) mixing the magnetic powder obtained in the step (1) with the passivation agent to obtain passivated magnetic powder; (3) adding a first coating agent to the passivated magnetic powder to perform primary coating, and then performing secondary heat treatment; and (4) adding a second coating agent to the magnetic powder obtained in the step (3) to perform secondary coating, pressing, and then performing tertiary heat treatment. The average particle size of the first coating agent is 300 nm-1 mu m; and the second coating agent comprises colloidal particles, and the average particle size of the colloidal particles is not higher than 100 nm. The preparation method can improve the density and effective magnetic permeability of the ferrosilicon magnetic material, so that the ferrosilicon magnetic material has excellent magnetic performance, the loss is greatly reduced, heat generation is reduced, and the device is beneficial to energy saving and high efficiency.
Owner:HENGDIAN GRP DMEGC MAGNETICS CO LTD +1

Cs3Cu2I5 single crystal growth method

The invention belongs to the technical field of crystal growth, and particularly relates to a Cs3Cu2I5 single crystal growth method. The method specifically comprises the following steps: taking cesium iodide and cuprous iodide as precursors, carrying out stirring reaction on the precursors and lewis acid in a polar aprotic solvent, hydrolyzing the lewis acid to generate an acid environment, inhibiting Cu < + > oxidation, and meanwhile, forming uniformly dispersed colloidal particles to obtain a precursor solution; and adding an anti-solvent into the precursor solution to enable the precursor solution to reach a supersaturated state, filtering, and carrying out single crystal growth by adopting an inverse temperature crystallization method. Lewis acid is added into the precursor solution, oxidation of Cu < + > is inhibited by utilizing a weak acid environment generated by hydrolysis of the Lewis acid, and the colloid stability of the precursor is improved, so that growth of the high-quality large-size Cs3Cu2I5 single crystal is promoted. The method is simple and convenient to operate and easy to control, can effectively improve the scintillation luminescence performance of the single crystal, and has a wide application prospect.
Owner:国瑞科创稀土功能材料(赣州)有限公司 +1

Method for improving wet condensation effect of ethylene propylene rubber

The invention relates to the technical field of ethylene propylene rubber wet condensation processes, in particular to a method for improving the wet condensation effect of ethylene propylene rubber. The method comprises the following steps: in a wet condensation process flow, adding a prepared dispersant aqueous solution into a receiving tank, and enabling the dispersant aqueous solution to enter a condensation kettle under the action of circulating hot water. According to the invention, the diameter of the colloidal particles in the coagulation kettle can be 5-10mm, the colloidal particles can be ensured to have good dispersibility in the coagulation kettle, pipeline blockage, glue hanging and shaft sticking of the coagulation kettle are avoided, and the stable operation time of wet coagulation is prolonged.
Owner:PETROCHINA CO LTD

Method for producing a fermentation broth containing short-chain fatty acids

The present invention is a method for producing a fermentation broth containing colloidal particles having a particle size of not more than 50 nm and short-chain fatty acids, with an acidity of pH 3 to 4. The method is a method comprising the steps of: a step of preparing a fermentation device comprising a plurality of sets of fermentation vessels subjected to temperature management in each stage of a multi-stage fermentation process; a step of using soft water as a starter culture, a spore-forming Clostridium genus-containing primary culture solution containing 7 kinds of fermentation bacteria (International Depositary Accession Nos. NITE BP-02945 to NITE BP-02951) managed at a low temperature, and 3 kinds of fermentation media derived from natural raw materials generated by separately fermenting a first culture medium of dried soybeans, a second culture medium of a mixed culture medium of dried plants containing Chinese jujube, Chinese wolfberry fruit, and turmeric, and a third culture medium of a honey raw material; and a step of producing a fermentation broth by a multi-stage fermentation process.
Owner:HIGHER MOUNT CO LTD

High molecular weight block copolymers comprising repeating units derived from monomers comprising lactam and acryloyl moieties and hydrophilic monomers, compositions, and applications thereof

This application provides high molecular weight block copolymers comprising at least one block A comprising repeating units derived from monomers comprising lactam and acryloyl moieties and at least one block B comprising repeating units derived from hydrophilic monomers. The application further provides compositions comprising the block copolymers and applications thereof in various industrial areas including personal care. The application furthermore provides compositions comprising colloidal particles of the block copolymers. The variables x, y, R8 and R9 are described herein (I). Wherein each x and y is independently an integer having a value from about 10 to about 10000, and each R8, and R9 is independently selected from the group consisting of hydrogen, methyl, and combinations thereof.
Owner:ISP INVESTMENTS LLC

Dehydration device for sludge separation treatment

The utility model discloses a dewatering device for sludge separation treatment, which belongs to the technical field of sewage treatment and comprises a bottom plate, a support plate is fixedly connected to the left side of the top of the bottom plate, and a mixing box is fixedly connected to the top of the support plate. Sludge in a sludge tank is conveyed to the inner cavity of the mixing box through a sludge conveying pipe by an external screw pump, after conveying is completed, a flocculating agent is added through a chemical inlet, meanwhile, a stirring rod is driven by a first motor to rotate, stirring blades are driven by the stirring rod to rotate, the flocculating agent and the sludge are stirred through the stirring blades, and the flocculating agent and the sludge are mixed uniformly. In the process of mixing the flocculating agent and the sludge, the electrical property of organic colloids containing negative charges in the sludge can be neutralized, colloidal particles are promoted to be rapidly coagulated into large floccules which are easily separated from suspension liquid, rapid sedimentation of the sludge is facilitated, and the purpose of pretreatment is achieved. And subsequent solid-liquid separation is facilitated.
Owner:TIANJIN NINGCHUANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

A micro tube robot and its assembling, driving and radial extrusion method

The application discloses a kind of micro tube robot assembly, drive and radial extrusion method, assembly includes the following steps: step one, 0.05-2wt.% magnetic colloidal particles are assembled into two-dimensional monolayer colloidal film under xy plane oscillation magnetic field;Step two, z direction direct current magnetic field is applied and gradually increase magnetic field intensity, until monolayer colloidal film breaks into sheet;Step three, precession magnetic field is applied, sheet is bent to form the micro tube robot of dense hollow tubular structure;Drive: micro tube robot can be accurately controlled by three-dimensional magnetic field and drive direction and speed, hollow interior space is used to capture and transport micro cargo;Radial extrusion: micro tube robot assembled under oscillation magnetic field can realize radial direction repeated extrusion without breaking.The present application realizes metastable assembly from one-dimensional isotropic microspheres to three-dimensional micro tubular micro robots for the first time, is suitable for newtonian fluid and non-newtonian fluid, and can meet different application scenarios.
Owner:SOUTHEAST UNIV

An aluminum ferric sulfate salt flocculant and a preparation method thereof

The application relates to the technical field of water treatment flocculants, and discloses an aluminum-iron sulfate salt flocculant and a preparation method thereof. The method is characterized in that firstly, the attapulgite is subjected to acid activation, silanization, starch etherification grafting and free radical copolymerization modification, so as to obtain a modified attapulgite functional carrier which has a nano adsorption skeleton, an organic long chain and strong positive electricity; then, the carrier is taken as a core to carry out a hydrolysis-supporting reaction with ferric sulfate, aluminum sulfate and carbide slag under pH control; finally, sodium silicate is introduced to construct an inorganic gel network, and the aluminum-iron sulfate salt flocculant is obtained through ripening and drying. Through construction of an organic-inorganic hybrid structure, the application realizes multiple synergies of electric neutralization, adsorption bridging and net capture and sweeping, the product has high removal capacity for colloidal particles and dissolved organic matters, the flocculation body is compact and can be rapidly settled, and the product has the comprehensive advantages of low raw material cost, stable process and environmental friendliness.
Owner:SHAANXI ZHUOYUE MATERIAL TECH CO LTD

Novel emulsification production equipment provided with secondary homogenization auxiliary equipment and method

The invention discloses novel emulsification production equipment provided with secondary homogenization auxiliary equipment and a method, and relates to the technical field of emulsification production.The equipment comprises an emulsification pot, a feeding pipe is installed at the upper end of the side wall of the emulsification pot, an L-shaped discharging pipe is installed at the bottom of the emulsification pot, and a conveying pipe is installed on the side wall of the L-shaped discharging pipe; a homogenizing tank is vertically installed at the end, away from the L-shaped discharging pipe, of the conveying pipe, a circulating pipe is installed at the bottom of the homogenizing tank, a homogenizing mechanism is arranged at the end, away from the homogenizing tank, of the circulating pipe, a slitting mechanism is arranged on the conveying pipe, and a dispersing and dissolving mechanism is arranged in the homogenizing tank. According to the device, agglomerated colloid is slit through the slitting net, the slit colloid and emulsion are dispersed and dissolved through the first stirring column and the second stirring column, then the emulsion is conveyed into the emulsifying pot through the circulating pipe, the rotating pipe and the stirring pipe, circulation of the emulsion is achieved, and the dissolution speed of micellar particles is increased.
Owner:SHANDONG FENGJIN MEIYE TECH CO LTD

Nano-liposome preparation based on phase transfer induced assembly and preparation method thereof

The invention belongs to the field of pharmaceutical preparations, and relates to a nano-liposome preparation based on phase transfer induced assembly and a preparation method thereof. The nano-liposome preparation comprises an active pharmaceutical ingredient, an amphiphilic lipid component and a lipid membrane structure regulator. The preparation method comprises the following steps: firstly, preparing active pharmaceutical ingredients into colloidal particles as a drug core; dispersing the core in an organic solvent containing a lipid component and a lipid membrane structure regulator to form an oil phase dispersion system; the preparation method comprises the following steps: preparing an oil phase system, then contacting the oil phase system with a water phase, carrying out phase transfer induced assembly to enable lipid to spontaneously coat a drug core on a water-oil interface and migrate to the water phase so as to form a nano-liposome with a lipid double-layer structure, and finally removing an organic solvent, thereby obtaining the nano-liposome. The method disclosed by the invention has the advantages of high drug loading capacity, strong universality, simple and convenient process, easiness in large-scale production and the like, and is suitable for efficient loading of various water-soluble drugs.
Owner:CHINA PHARM UNIV

Method for obtaining biodegradable colloidal particles

The present invention relates to a system for the release of bioactive compounds comprising biodegradable colloidal particles with an average size less than 500 nm, where the biodegradable colloidal particles comprise an anionic polysaccharide and a cationic polysaccharide. Furthermore, its method of extraction includes: (a) estimating the stoichiometric charge ratio between an anionic polysaccharide, and a cationic polysaccharide; (b) preparing a solution with the anionic polysaccharide based on the stoichiometric charge ratio and adjusting to an acidic pH; (c) preparing a solution with the cationic polysaccharide based on the stoichiometric charge ratio and adjusting to an acidic pH; (d) adding the solution with the cationic polysaccharide to the solution with the anionic polysaccharide to obtain biodegradable colloidal particles; (e) reducing the particle size of the biodegradable colloidal particles; (f) separating the biodegradable colloidal particles from the supernatant; and (g) resuspending the biodegradable colloidal particles and storing them.
Owner:UNIV DE GUADALAJARA +1

Cotton rope machine glue mixing technology device

The utility model discloses a thread rope machine glue mixing technical device, which comprises a glue mixing tank, a raw material pipe, a support (3), a stirring component, a separating and filtering component and a heating component, the raw material pipe is fixedly arranged at the top of the glue mixing tank, the support (3) is fixedly arranged on the outer wall of the glue mixing tank, the stirring component is fixedly arranged on the support (3), and the separating and filtering component is fixedly arranged on the support (3). The separating and filtering assembly is fixedly mounted on the inner wall of the glue mixing tank, and the heating assembly is fixedly mounted on the glue mixing tank. The glue mixing tank has the capability of adjusting the viscosity of glue, the stirring shaft rod drives the first stirring blade, the second stirring blade and the third stirring blade to rotate, and the first stirring blade, the second stirring blade and the third stirring blade respectively rotate corresponding to the upper parts of the first sub-filter plate, the second sub-filter plate and the third sub-filter plate; the solid colloid particles are filtered layer by layer, so that the solid colloid particles are prevented from remaining in the glue when the glue is discharged, and later process processing is not influenced.
Owner:JIAXING BRILLIANT AUTOMATION ENG CO LTD

Colloidal phosphate fertilizer with limited run-off and method of making same

PendingUS20250313518A1Magnesium phosphate fertilisersMagnesium double phosphate fertilisersPyrophosphateColloidal particle
A fertilizer is provided that promotes plant growth with limited phosphate run-off. The fertilizer has reduced run-off even when compared to a phosphorus normalized application of struvite. The fertilizer is based on suspended colloidal particles in aqueous solution. The colloidal particles have a size distribution in which 95 percent of the colloidal particles are less than 60 microns and have an atomic number ratio of magnesium:nitrogen:phosphorus of 1:0-3:0.5-3. The colloidal particles are heterogeneous and include domains of only struvite, or of struvite in combination with domains of pyrophosphate species, poly phosphate species, or combinations thereof. The fertilizer composition is formulated to include additional components while still retaining colloidal suspension storage stability. The colloidal particles are produced from concentrated solutions that facilitate industrial scale production. The colloidal particles promote bioavailability through root acid phosphatases activation of insoluble phosphorus species. The colloid domain size facilitates access and soil intercalation over run-off mechanisms.
Owner:THE ANDERSONS INC