A method for producing a liquid composition which contains surfactants, and to the compositions obtained by the method.

The invention relates to a method and a colloidal mixer for colloidal processing of a slurry, in particular processing of construction materials, with a colloidal mixer, in which at least one liquid is introduced into a mixing trough, at the lower region of which is arranged an outlet opening with a mixing device having a mixing rotor, which is driven in rotation.

According to the invention, the at least one pulverulent solid component is introduced into the mixing trough, the at least one liquid mixed with the at least one pulverulent solid component is induced to flow by the rotatingly driven mixing rotor and is discharged from the mixing trough through the outlet opening, wherein the mixture is led back again for a certain time via a backflow line into an upper region of the mixing trough for further mixing and, after a desired mixing state has been attained, the mixture is discharged as a finished slurry from the outlet opening by means of a discharge line.

According to the invention, it is provided that air is incorporated into the at least one liquid and/or the mixture in a targeted manner in a finely dispersed form, wherein a relative density of the liquid, or of the mixture, is reduced.

A reaction apparatus includes first and second reaction material accommodation parts, each of which accommodates a solid, gaseous, or liquid reaction material. A feed pump feeds the reaction material to one or each of the first and second accommodation parts. A reactor mixes the reaction material fed from the feed pump. The reactor is configured to have a cylinder that has a reaction chamber which accommodates the reaction material therein. The reactor has injection ports on which one side of each of the upper portion and lower portion thereof are connected to the first and second reaction material accommodation parts, respectively. A stirring shaft is disposed to be rotatable in the cylinder and stirs the reaction material supplied from the first and second reaction material accommodation parts. A stirring motor provides torque for the stirring shaft.

An example fluid management system for generating a fluid for a treatment operation may include a mixer and a first portable container disposed proximate to and elevated above the mixer. The first portable container may hold dry chemical additives. A feeder may be positioned below the first portable container to direct dry chemical additives from the first portable container to the mixer. The system may also include a first pump to provide fluid to the mixer from a fluid source.

The density of slurries produced by mobile blender for injection into oil and gas wells is controlled using a microwave flow meter. Liquid having a known density is provided to the blender. The liquid is flowed through a conduit and discharged into a blending tub on the mobile blender. The amount of liquid introduced into the tub is measured with a liquid flow meter. Solid particulates having a known density are provided to the blender. The particulates are discharged into the tub by allowing them to fall into the tub from a conveyor on the mobile blender. The amount of the particulates falling into the tub are measured with a microwave flow meter. The flow of the liquid and the particulates are controlled in response to the measurements to blend a slurry having a predetermined density. The slurry is provided for injection into the well.

An apparatus and method are disclosed for mixing and pumping solids and fluids and includes use of a blender including: a casing defining a cavity; a drive shaft extending through a casing opening into the cavity; a slinger having an outer edge, a center, a bottom slinger surface, a top slinger surface, and a plurality of slinger blades extending upwardly from the top slinger surface, wherein the slinger is attached to the drive shaft, and wherein the height of the top slinger surface above the bottom slinger surface continuously increases from the outer edge to the center; and an impeller having a bottom impeller surface and a plurality of impeller blades extending downwardly from the bottom impeller surface, wherein the impeller is positioned below the slinger and is attached to the drive shaft.

A mixing tank arrangement, comprising a tank (102) having at least one feed opening (104, 106) for feeding a first and a second material into the tank. The mixing tank arrangement further comprises a recirculation system having a first inlet (110) and a first outlet (112) for recirculating and mixing the first and the second material in the tank. The first inlet (110) comprises a body pipe (116) in a first side (FS) of the tank having a plurality of feeding pipes (118) extending to a second side (SS) of the lank wherein the feeding pipes are configured to jet the first and second materials from the second side to the first side of the tank such that the first and the second material hit a wall of the tank in the first side and wherein a shape of the wall is configured to divide the first and the second materials to at least two streams that flow to the second side of the tank and collide.

A seed treatment method, using a composition obtained extemporaneously by mixing at least one powder substance and an aqueous medium, comprising the steps consisting of: producing the mixture in an automatic and cyclic manner, in at least one first vessel (10; 10), by introducing into same first at least a portion of the aqueous medium and next the powder substance, the latter being sucked into the aqueous medium in the vessel by means of a vacuum created in the vessel, at least partially draining the content of the vessel, by means of at least one blast of compressed gas in the vessel, to a seed treatment device where the mixture is brought into contact with the seeds.

A device for mixing powders by cryogenic fluid, characterised in that it comprises at least: a chamber for mixing powders, comprising a cryogenic fluid; a chamber for supplying powders in order to allow the powders to be introduced into the mixing chamber; means for agitation in the mixing chamber so as to allow the mixing of the powders placed in suspension in the cryogenic fluid.

Image-based verification of progress and/or results, and or detection of fault conditions, for automated operations preparing pharmaceuticals, particularly in relation to the dissolving of pharmaceutical materials contained in vials. Imaging is and image processing is used, in some examples, to follow the progress of processing which converts solid and/or concentrated material (e.g., crystallized and/or lyophilized) into fluid solutions and/or suspensions. As conditions vary, time to dilute may change; detection of fault conditions may reduce risk and/or reduce waste. In some examples, a quantity of fluid used in dissolution/dilution is itself monitored at one or more stages. Methods of assessing fluid contents of vials, including vials distributed for use in manual operations which may include obstructions to viewing such as labels.