The present disclosure relates to catalytic static mixers comprising catalytic material. The static mixers can be configured for use with continuous flow chemical reactors, for example tubular continuous flow chemical reactors for heterogeneous catalysis reactions. This disclosure also relates to processes for preparing static mixers. This disclosure also relates to continuous flow chemical reactors comprising the static mixers, systems comprising the continuous flow chemical reactors, processes for synthesising products using the continuous flow reactors, and methods for screening catalytic materials using the static mixers.

A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described. The method includes predicting a first capacitance volume of a first syringe comprising a first medical fluid and a second capacitance volume of a second syringe comprising a second medical fluid with a first capacitance correction factor and a second capacitance correction factor, respectively, selecting a ratio of the first medical fluid and the second medical fluid to be administered to a patient in the dual flow injection, determining a relative acceleration ratio of a first piston of the first syringe and a second piston of a second syringe based on the predicted first capacitance volume and the predicted second capacitance volume, wherein the relative acceleration ratio is selected to maintain the selected ratio of the first medical fluid and the second medical fluid during the dual flow injection, and injecting a mixture of a first medical fluid and a second medical fluid having the selected ratio with the powered injection system.

A formula delivery appliance generally includes a formula delivery head having features to mix, direct, and distribute formulation through nozzles to a desired location, such as the hair or scalp of a user. In this regard, the formula delivery head may include a plurality of nozzles configured to discharge the formulation at a desired flow rate. In some instances, the flow rate across the plurality of nozzles is controlled such that each nozzle has a flow rate within a specified percentage of the average flow rate across the plurality of nozzles.

Devices, systems and methods for mixing and/or introducing agrochemicals, comprising a mixer including a mixing chamber in which a liquid is able to flow, and a delivery point located on the mixing chamber for delivering an agrochemical into the mixing chamber, wherein the mixer includes means for generating backpressure in the liquid and the agrochemical in the mixing chamber, and a mixer system including a mixer, an injector, and an agrochemical source, wherein the injector is adapted to receive an agrochemical from the agrochemical source, and a method including the steps of supplying a liquid into a mixing chamber of a mixer or mixer system, delivering an agrochemical into the mixing chamber, and generating backpressure to the liquid flowing through the mixing chamber to effect mixing of the liquid and the delivered agrochemical.

A static mixer for liquids or gases includes a housing having a continuous inner surface defining a fluid flow path for liquids or gases, an inlet to the fluid flow path, and an outlet from the fluid flow path, and an insert extending longitudinally through the fluid flow path between the inlet and the outlet. The insert is elastically expansive to exert outwardly directed pressure against the continuous inner surface of the housing. In one embodiment, the insert is hollow and has deflectors dispersed therethroughout and each projecting inwardly into the fluid flow path. In another embodiment, the insert includes a helical deflector extending inwardly into the fluid flow path from the continuous inner surface, and helically about a longitudinal axis of the housing.

A system for continuously treating recycled polymeric material includes a hopper configured to feed the recycled polymeric material into the system. An extruder can turn the recycled polymeric material in a molten material. In some embodiments, the extruder uses thermal fluids, electric heaters, and/or a separate heater. The molten material is depolymerized in a reactor. In some embodiments, a catalyst is used to aid in depolymerizing the material. In certain embodiments, the catalyst is contained in a permeable container. The depolymerized molten material can then be cooled via a heat exchanger. In some embodiments, multiple reactors are used. In certain embodiments, these reactors are connected in series. In some embodiments, the reactor(s) contain removable static mixer(s) and/or removable annular inserts.

Apparatuses and methods for liquid control are provided. A liquid control apparatus may be for selectively treating and/or substituting a liquid flow from at least one of a plurality of supply lines. The ultimate liquid flow is for dispensing to a user by way of a liquid supply fixture such as a tap. The apparatus comprises a liquid conditioning module for connection in-line with at least one of the plurality of supply lines. The liquid conditioning module receives a diverted liquid flow of the at least one supply line from an upstream portion of the supply line. It then outputs a selectively treated and/or substituted liquid flow for returning to a downstream portion of the supply line for dispensing to the user. The apparatus has at least one flow sensor, each flow sensor associated with one of the plurality of supply lines. It has a controller, the controller configured to receive information indicative of the liquid flow of at least one of the plurality of supply lines from the at least one flow sensor. The controller, upon the occurrence of a predetermined flow characteristic, is operable to activate the liquid conditioning module to treat and/or substitute the liquid flow from one or more of the liquid conditioning module connected supply lines in order to provide a treated and/or substituted liquid flow at the liquid supply fixture.

A device for applying a mixed component, includes first and second receptacles, a static mixing nozzle, an applicator and an operating member. The first and second receptacles are to receive first and second components, respectively. The static mixing nozzle includes a plurality of mixing elements, has a first end and a second end, and is in fluid communication with the first and second receptacles. The applicator includes a spray tip and an input for pressurized fluid, the spray tip disposed downstream of the second end of the static mixing nozzle and in fluid communication with the static mixing nozzle. The operating member is configured to control the pressurized fluid.

A system for continuously treating recycled polymeric material includes a hopper configured to feed the recycled polymeric material into the system. An extruder can turn the recycled polymeric material in a molten material. In some embodiments, the extruder uses thermal fluids, electric heaters, and/or a separate heater. The molten material is depolymerized in a reactor. In some embodiments, a catalyst is used to aid in depolymerizing the material. In certain embodiments, the catalyst is contained in a permeable container. The depolymerized molten material can then be cooled via a heat exchanger. In some embodiments, multiple reactors are used. In certain embodiments, these reactors are connected in series. In some embodiments, the reactor(s) contain removable static mixer(s) and/or removable annular inserts.

A hardenable (e.g. dental) compositions is described comprising an encapsulated material. The encapsulated material comprises a basic core material and an inorganic shell material having certain viscosity criteria. Also described are dispensing devices and kits are described comprising a hardenable (e.g. dental) composition comprising a liquid material and an encapsulated material wherein the encapsulated material comprises a basic core material and an inorganic shell material comprising a metal oxide surrounding the core. The dispensing devices and kits can facilitate the methods of applying the hardenable composition. The hardenable or hardened (e.g. cured) composition can provide various technical effects such as a delayed release of a basic core material, a delayed increase in basicity, promoting remineralization of a tooth or bone structure, and increasing the average alkaline phosphatase (ALP) activity of pulp cells. In some embodiments, the composition is a dental (e.g. sealant) composition to a tooth structure.