76 results about "High-shear mixer" patented technology

An apparatus for producing biobased carriers for dispersal of biological and chemical molecules includes a premixer having a cavity for receiving a coproduct of a wet biomass process and a binder and being operable to premix the coproduct and binder to produce a substantially homogeneous DDGS mixture; a high shear mixer having a receptacle for receiving the DDGS mixture and being operable to shear mix the mixture and produce very small DDGS particles; and, an agglomerator having an interior chamber sized and configured to receive and transform the DDGS particles into substantially spherical DDGS pellets.

An inline, high-shear mixer is provided in a cracked gas stream upstream of a caustic tower in an ethylene production unit. Spent caustic is withdrawn from the bottom of the caustic tower and pumped to the mixer, where the spent caustic mixes with and absorbs acid gas components from the cracked gas stream. The spent caustic is separated from the cracked gas, forming a partially treated cracked gas stream. The partially treated cracked gas stream is then fed to the caustic tower. Polymer deposition in the caustic tower is reduced because polymeric material is formed when the cracked gas stream is mixed with the spent caustic and is removed before the cracked gas stream is fed to the caustic tower.

A process that enables the formation of a high damping, soft polymer gel includes reacting a maleimide copolymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene-grafted maleimide copolymer product which then is dispersed with an extender sufficient to form the gel. The steps can be carried out sequentially in a high shear mixer without the need for intermediate steps of cooling and grinding the reaction product of one step before proceeding to the next.

A high shear mixer in a holding tank is used in a continuous flow process. Flow rate of material into and out of the holding tank establishes residence time in contact with shearing elements. A batch shear mixer is used in a tank that has continuous flow into the bottom and out of the top. A level controller controls a valve or a positive displacement pump at the inlet. The mixing chamber is sized for the maximum needed residence time, slowing the flow increases the residence time. In an open tank lower inlet pump and upper outlet pump are coordinated. Incoming flow rate matches outgoing flow for continuous processing.

This invention provides a process for producing a nanocellulose-lignin material, comprising: providing a starting material comprising lignin and discrete cellulose fiber fines, chemically and physically separate from the lignin; and mechanically refining the starting material to form a nanocellulose-lignin material comprising cellulose nanofibrils and/or cellulose nanocrystals chemically or physically associated with the lignin. In certain embodiments, the starting material contains about 60 wt % lignin and about 40 wt % cellulose fiber fines on a dry basis. The starting material may be obtained from an AVAP® process. The refining may utilize single disk refiners, double disk refiners, conical refiners, cylindrical refiners, beaters, grinders, homogenizers, microfluidizers, vortex mixers, rotor-stator mixers, and/or high-shear mixers, for example. A novel nanocellulose-lignin composite material is obtained.

A diesel desulfurization method has various steps including: implementing a modified oxidative desulfurization (UAOD) process. The UAOD has the steps of: mixing diesel fuel with room temperature ionic liquid, oxidant, phase transfer catalyst, and acid catalyst in a tank in a mix; recycling the ionic liquid and recycling the acid catalyst in aqueous phase. A step is to move the sulfur from the diesel fuel in a fluidized bed reactor (FBR) having bed reactor material. The process can be improved with ultrasound during mixing, or a high shear mixer. The bed reactor is preferably acidic alumina for adsorbing oxidized sulfur. The oxidant is preferably hydrogen peroxide (H2O2). The acid catalyst is preferably a mixture of Acetic acid and Tri-fluoro acetic acid.

A method for quickly forming a high value powdered feed materials, particularly pharmaceuticals, into small, durable granules using known elements of process equipment, comprising the steps of mixing the feed materials with a wetting solution in a high shear mixer or granulator, partially drying the granulated mixture in a first drying means to a state of intermediate dryness, milling the partially dried granulated product in a stream of air to create small partially dried granules of the desired physical size, and drying the product in the second drying means to the desired final Loss On Drying (LOD) percentage of wetting solution. The milled product may be conveyed by vacuum from the milling step to the second drying means through a relatively long cylindrical transfer hose to create uniformly rounded granules.

An apparatus for producing biobased carriers for dispersal of biological and chemical molecules includes a premixer having a first inlet, a first outlet, a cavity configured for receiving a wet coproduct and a binder through the first inlet, and a stirring apparatus within the cavity for premixing the wet coproduct and binder into a substantially homogeneous mixture; a high shear mixer having a housing, a drive apparatus and a high shear apparatus, the housing defining an opening, the drive apparatus being within the housing and for forcing the substantially homogeneous mixture from the premixer into the high shear apparatus, and the high shear apparatus including a rotor, a stator and a screen covering the opening and being for shear mixing the mixture including forcing the mixture through the screen and out of the housing in the form of nucleation enhanced particles; and an agglomerator having an interior chamber sized and configured to receive the nucleation enhanced particles from the high shear mixer and for transforming the nucleation enhanced particles into substantially spherical biomass pellets.

A method for the control of insects breeding on water surfaces and particularly mosquitoes, comprising blending in a high shear mixer water, the ester of a fatty acid of 10 to 25 carbon atoms and a low molecular weight alcohol, such as methanol or ethanol, an emulsifying agent and a thickener until an emulsion containing the ester with droplet sizes ranging from 1 to 20 microns in diameter is obtained and applying such to the surface of insect infested water in sufficiently diluted form, to break the emulsion and form a thin continuous film.

In a process for the production of a silicone in water emulsion in which a polysiloxane fluid, at least one surfactant and water are continuously fed to a high shear mixer in such proportions as to form a viscous oil in water emulsion which is continuously withdrawn from the mixer. The polysiloxane fluid may be a non-reactive fluid or may have reactive groups capable of taking part in a chain extension reaction. A desired emulsion particle size can be maintained by monitoring the pressure in the supply line at the inlet to the high shear mixer.

The present invention is directed to a sustained release pharmaceutical composition in oral dosage form consisting essentially of a pharmaceutically effective amount of a medicament and a hydrophobic material in the absence of a lactose or hydrophobic carbohydrate polymer, said medicament being present in an amount greater than about 25% of the pharmaceutical composition and having a water solubility greater than about 1 gram per 10 mL of water at 25° C., said hydrophobic material having a melting point ranging from at least about 40° C. to about 100° C. at 1 atm pressure, and being present in an amount ranging from about 3% to about 20% by weight of the pharmaceutical composition and in an amount less than the of the medicament, and said hydrophobic material not being present in coating of said pharmaceutical composition; said pharmaceutical composition being prepared by direct compression in the absence of or melting the hydrophobic material or the use of high shear mixer. The present invention is also directed to a method of preparing said pharmaceutical composition.

A process for creating cold emulsions for cosmetic use involves creating a gel component by exfoliating silicate compounds with catalysts and organic materials under pressure and mixing the resulting components with water, mixing an oil phase with additional powdered components as desired, and mixing the gel component with the oil phase in a high shear mixer until a Pickering emulsion is created. The resulting emulsion is simple to manufacture, stable for long periods of time, and has a desirable texture for cosmetic use.

The invention discloses a preparation method of nano-silica spheres. The preparation method of the nano-silica spheres comprises the following steps: (1) preparing a nano-silica sphere suspension: mixing ammonium hydroxide, tetraethyl orthosilicate and an alcoholic solution with a high-shear mixer at the revolving speed of 10,000 to 22,000r/min to obtain the nano-silica sphere suspension; (2) separating the nano-silica spheres: centrifuging and washing the nano-silica sphere suspension, and drying a precipitate to obtain the nano-silica spheres. The preparation method of the nano-silica spheres disclosed by the invention has relative short preparation time, and nano-SiO2 spheres prepared by hydrolysis can be obtained by stirring for 10 to 20 minutes. Moreover, a template agent is not required, the preparation process is simplified, the template agent does not need to be removed by high-temperature calcining, and the cost is lowered; moreover, the particle sizes of the nano-SiO2 spherescan be controlled by controlling the different conditions of revolving speed, temperature and the like in order to meet the requirement on the particle sizes of the nano-SiO2 spheres. The preparationmethod can be applied to the fields of catalysis, stabilizing agents, enhancers, additives, biology and the like.

The invention relates to a continuous preparation method for high hydroscopicity resin polymerized monomer liquid. Acrylic acid is taken as the main raw material. The preparation method is characterized by comprising the following steps: placing deionized water, sodium hydroxide or potassium hydroxide and ice crystal-shaped acrylic acid needed by a polymerization reaction process recipe in a pipe mixer for the continuous neutralization reaction, then making the obtained neutralizer and a cross-linking agent aqueous solution and an oxidation initiator aqueous solution pass through an on-line high shear mixer for intensive mixing, then making the mixed liquid and the reduction initiator aqueous solution be mixed evenly and quickly at the outlet of the mixer, and finally carrying out the continuous supply to a polymerization reactor through a pipe. The method can reasonable utilizes the acid alkali neutralization reaction heat to improve the temperature of the neutralizer to the reaction temperature needed by the polymerization process and realize the continuous preparation of the polymerized monomer liquid during the continuous production of the high hydroscopicity resin without adding other additional cooling devices, and can also simplify the production technological process.

Use of a high shear mechanical device incorporated into a process for the production of sulfolene as a reactor device is capable of decreasing mass transfer limitations, thereby enhancing the sulfolene production process. A system for the production of sulfolene from butadiene and sulfur dioxide, the system comprising a reactor and an external high shear mixer the outlet of which is fluidly connected to the inlet of the reactor; the high shear mixer capable of providing a dispersion of sulfur dioxide gas bubbles within a liquid, the bubbles having an average bubble diameter of less than about 100 μm.

The present invention belongs to the chemical technology field, particularly relates to polypropylene fiber containing a composite nitrogen phosphorus flame retardant used for periwig and its production method. The invention is characterized in that the components comprise by mass: 100 parts of polypropylene, 5 to 20 parts of dehydrating agent, 5 to 20 parts of charring agent, 5 to 20 parts of foaming agent, 1 to 5 parts of coupling agent, 1.5 to 2.5 parts of heat stabilizer and 1.0 to 2.0 parts of polypropylene heat degradation masterbatch. Polypropylene, the heat stabilizer and polypropylene heat degradation masterbatch are added into a high-shear mixer in proportion, the dehydrating agent, the charring agent, the foaming agent and the coupling agent are orderly added for improving the continuously stirring mixing rotating speed, color masterbatch is added and the rotating speed is kept, the material is discharged after continuously stirring, the discharged material is extruded by adouble screw extruder, melt spinning is performed after drying, the extruded nascent fiber is cooled and reeled by crosswind and a filament is obtained after drawing-off. The present invention has the advantages of non-toxicity, smoke suppression, friendly environment and the like.

The invention discloses a preparation method of a nano magnesium hydroxide material, relates to the technical field of preparation of nano materials, and solves the problems that the existing nano magnesium hydroxide material preparation method causes severe corrosion to reaction equipment, has strict requirements for instruments and equipment and is high in equipment cost. The main technical scheme of the invention is as follows: the preparation method of a nano magnesium hydroxide material comprises the following steps: 1. preparing a precursor liquid: dissolving magnesium salt and surfactant in solvent, and homogenizing the obtained mixture through a pipeline type high-shear mixer to obtain the precursor solution; 2. preparing a precursor: introducing ammonia gas into the precursor solution obtained in the step 1, adding crystal form control agent into the precursor solution while stirring, and reacting to obtain the precursor; and 3. heating the precursor obtained in the step 2 at 60-300 DEG C to obtain the nano magnesium hydroxide material.