This specification discloses a continuous flow reactor comprising a reaction vessel enclosing a rotating shaft which bears multiple impellers. A removable insert comprising baffles separates the interior of the reaction vessel into multiple interconnected chambers each enclosing at least one impeller, and a gap between the outer edge of the baffle and the vessel's interior wall facilitates insert removal for maintenance but avoids excessive backmixing.

A method for producing a resin particle dispersion includes: obtaining a phase-inverted emulsion by adding a neutralizer to a resin solution prepared by dissolving a resin having an acid value in an organic solvent to thereby neutralize the resin and then adding an aqueous medium to the resulting resin solution to subject the resin to phase inversion emulsification; and removing the organic solvent from the phase-inverted emulsion. In the course of obtaining the phase-inverted emulsion, a maximum agitation power per unit mass (kg) of the resin when the resin solution containing the aqueous medium added thereto is agitated to perform the phase inversion emulsification is from 0.4 W to 20 W inclusive.

A bubble formation apparatus (500) includes: a rotor (100); a container (200) in which the rotor (100) is housed together with a liquid (LQ) and a gas (GS); and a rotary device (300) that causes rotation of the rotor (100) with the rotor (100) being pressed against an inner lower surface (221) that is the inner surface of the container (200). A bubble is formed by periodically repeating pressurization and depressurization of a mixture of the gas (GS) and the liquid (LQ) in a gap between the inner lower surface (221) and a portion, pressed against the inner lower surface (221), of the rotor (100) due to the rotation of the rotor (100) by the rotary device (300).

A device (100) for aeration of and separation of carbon dioxide from a fluid is disclosed. The device comprises at least a first and a second screen gear (101,102) said first and second screen gear (101,102) comprising several screen windows (203) in the form of openings. The shape and/or distribution of said screen windows (203) on said first and second screen gear (101,102), when said first and second screen gear (101,102) are connected, is such that at least 20%, preferably at least 25%, more preferably at least 30%, of the screen windows (203) of the first screen gear (101) are asymmetrically distributed in relation to the screen windows (203) of the second screen gear (102), asymmetrically distributed implying that the edges surrounding the screen windows of the first screen gear are not 100% overlapping the edges of the screen windows of the second screen gear when the first and second screen gear are connected and seen from above.

There is provided an apparatus (100) for manufacturing a cementitious slurry comprising foam, the apparatus (100) comprising: a mixing chamber (101) for mixing a cementitious material and water to form a cementitious slurry, a channel (103) fluidly connected to the mixing chamber (101) at a first end (111), the channel (103) for receiving the cementitious slurry from the mixing chamber (101), the channel (103) extending from the first end (111) and terminating at a second end (112); the channel (103) comprising a foam inlet (106) for introducing foam into the channel (103); wherein the channel (103) comprises a mixing cross section, the mixing cross section comprising a first dimension and a second dimension; the first dimension perpendicular to the second dimension; the first dimension being longer than the second dimension; wherein the foam inlet (106) is configured to introduce foam into the channel (103) in a direction generally parallel to the second dimension. A channel (103) for a cementitious slurry and a method are also provided.

A system for dissolving solid chemical to form a dilute liquid solution can include a solid chemical reservoir and a solution generator reservoir. The solid chemical reservoir can have a product support surface and be configured to allow diluent to flow therethrough. The solution reservoir can be positioned below the solid chemical reservoir. A liquid blocking wall can be positioned between the product support surface and an interior of the solution reservoir to define a liquid filling space therebetween. The system can include a recirculation circuit having an outlet in the liquid filling space. The recirculation circuit can draw liquid from the solution reservoir and discharge the liquid through the outlet into the filling space, thereby causing the liquid to flow through the product support surface to contact the solid chemical before discharging through an opening of the solid chemical reservoir and back into the solution reservoir.

To realize excellent durability of an apparatus, realize a dissolved gas amount suitable for propagation of ultrasonic waves, and stably generate fine bubbles that further comply with a treatment using ultrasonic waves. An ultrasonic treatment apparatus according to the present invention includes: a treatment part capable of accommodating a treatment liquid and an object to be treated; an ultrasonic generator that is provided in the treatment part and applies ultrasonic waves to the object to be treated; and a circulation path for circulating the treatment liquid in the treatment part, in which a fine bubble generator which performs deaeration on an extracted treatment liquid and generates fine bubbles in the treatment liquid, is provided to the circulation path, in series with a treatment liquid extraction pipe. The fine bubble generator has two or more narrow portions each having an opening flow path with a size narrower than an inside diameter of the treatment liquid extraction pipe, in which the opening flow paths of the narrow portions adjacent to each other are configured to prevent the treatment liquid from proceeding straight, and an opening cross-sectional area at each pressure reduction zone satisfies a predetermined relation.

A brine maker is provided having a substantially cuboid shape. The brine maker may include: a hopper having a top opening configured to receive a solute from above the brine maker; a partition screen separating a solute side of the hopper from a brine side of the hopper; and a plurality of solvent ports located along a bottom floor of the hopper, the solvent ports configured to direct a solvent across the bottom floor of the hopper toward the partition screen.

A mixing device for use with an electric drill for mixing drywall mud, tile grout, concrete mixes and paint in various size containers and smaller applications. A mixing device is disclosed having a shaft, a central hub and mixing rods that are equidistant from each other and have a side vertical portion and a flat bottom portion such that the mixing device can efficiently mix all material that is on the sidewalls and bottom of a mixing container.

Disclosed herein are an agitation structure and an agitation method. The agitation structure includes an agitation inlet pipe and an agitation tank. The agitation tank includes a buffer pool and an agitation container. The agitation container is communicably installed below the buffer pool. The agitation inlet pipe is communicably installed on a side wall of the buffer pool. The agitation tank is provided with an agitator.