Abstract:
A rotating spindle shaft is used as a valving mechanism for dispensing finite quantities of fluidized alkaline metals at regular spaced intervals into a reaction chamber for hydrolyzation to produce intense discrete surges of direct current flow.
Abstract:
A preferred test system includes a chemical and/or biological sample in a liquid test medium and contains both a liquid and a gas phase that simulates air-water gas exchanges. It operates intermittently, with additions and eliminations of liquids being decoupled in time so that to make sure the medium is well mixed before eliminating any liquid; requirement for expensive fixed flow pumps, or accurate flow meters are eliminated while accurate measurement of fluxes between the chemical and/or biological sample, the liquid and the gas phase are possible by mass balance between added and eliminated liquids.
Abstract:
A device and a method for producing suspensions or wet pastes of nanoparticles or ultra-fine particles. The method comprises: introducing a flow of particles of nanometric or submicronic size into a first compartment of a chamber having a bulk density between 15 and 100 g/L; forming, in the first compartment, a spray of droplets between 1 and 10 micrometres in size, by injecting a solvent in liquid or gas form into a second compartment of the device and passing said solvent through the filtering means, the solvent being chosen from the solvents which are liquid at ambient temperature and at atmospheric pressure; stopping the formation of the spray when the entire quantity of particles contained in the first compartment forms, as required, with the solvent, a suspension comprising between 80 and 99.9% solvent, if the solvent is introduced into the second compartment in liquid form, or a wet paste comprising between 1 and 10% solvent, if the solvent is introduced into the second compartment in gas form; recovering the suspension or wet paste formed.
Abstract:
An apparatus for fuel reforming is provided that utilizes pulsed injectors for a fuel flow controller and an air flow controller, and the injectors are integrated with an atomizing mixer thereby producing a fuel-air mixture having an O/C Ratio which, in turn, is passed to a Catalytic Partial Oxidation reactor. Use of this apparatus permits beneficial long term operation of this Catalytic Partial Oxidation reactor.
Abstract:
A additive delivery system and method which includes a additive gel, a filter and a fluid/gel chemistry exchange region, wherein the exchange region subjects the additive gel to different types or combinations of contact with the fluid in order to control the additive release rate, maintain a uniform release rate, maintain the physical integrity of the gel or combinations thereof.
Abstract:
The invention relates to a stirred-tank reactor and to a method for carrying out a polymerization reaction of unsaturated monomers using a stirred-tank reactor. According to the invention, said stirred-tank reactor is characterized in that the product discharge point is designed as the central base outlet that is at least partially traversed by the agitator shaft. Said polymerization is performed continuously under positive pressure, so that the stirred-tank reactor is operated hydrodynamically.
Abstract:
Methods, apparatuses, and systems for manufacturing a hot melt adhesive containing an adhesion promoter in a continuous mode include supplying a melted, hot melt adhesive to a mixing device at a first predetermined rate while simultaneously supplying an adhesion promoter to the same mixing device at a second predetermined rate to form a homogeneous admixture containing the hot melt adhesive and adhesion promoter. The hot melt adhesive/adhesion promoter mixture is subsequently reacted in at least one tubular reactor at a predetermined temperature for a predetermined residence time to allow the adhesion promoter to chemically bond with the hot melt adhesive and form an adhesive-promoter-treated hot melt adhesive. The adhesion-promoter-treated hot melt adhesive is collected in a product receiver and may be further processed.
Abstract:
The invention relates to a stirred-tank reactor and to a method for carrying out a polymerisation reaction of unsaturated monomers using a stirred-tank reactor. According to the invention, said stirred-tank reactor is characterised in that the product discharge point is designed as the central base outlet that is at least partially traversed by the agitator shaft. Said polymerisation is performed continuously under positive pressure, so that the stirred-tank reactor is operated hydrodynamically.
Abstract:
A UV-crosslinkable polyacrylate pressure-sensitive adhesive composition having a polyacrylate having photoinitiator units incorporated therein by polymerization and being produced by a free-radical solvent-free polymerization process.
Abstract:
The present invention is a container having a diptube inlet, at least one baffle disc positioned between the outlet of the diptube and the outlet of the container to provide a narrow annular space between the baffle disc and the sidewall of the container to prevent liquid droplets from entering the outlet to the container and the inner surface of the container sidewall and an annular, radially inward projecting deflector ledge on the sidewall, proximate the baffle disc. The present invention is also a process of delivering a chemical precursor from a container having the above structure. Liquid and vapor delivery are both contemplated.