Abstract:
A thin film tube reactor comprising a tube having a longitudinal axis, an inner cylindrical surface, a closed end and an open end, wherein the tube is rotatable about the longitudinal axis and wherein the angle of the longitudinal axis relative to the horizontal is variable between about 0 degrees and about 90 degrees.
Abstract:
A thin film manufacturing system, wherein a stage for placing a substrate thereon is disposed within a vacuum reactor and a gas head for supplying a film forming gas to a central area on a top face of the vacuum reactor is arranged so that the gas head is opposed to the stage. A cylindrical sleeve member is disposed and comes in close contact with a side wall of the stage to surround a periphery of the stage. The height of the stage can be established at the position where the volume of a second space formed below the stage and connected to a vacuum discharge means is larger than that of a first space formed above the stage, in such a manner that an exhaust gas is isotropically discharged from the first space without causing any convection current therein through the interstice between the sleeve member and an inner wall surface constituting the reactor.
Abstract:
The invention relates to a process for the preparation of copolymers containing acid monomer structural units and polyether macromonomer structural units, which is carried out in a continuous mode of operation in a reactor which has α) a body B rotating about an axis of rotation and having a reaction surface, β) a metering system and γ) a device for irradiating the reaction surface, i) the components of a starting reaction composition being applied individually and/or as a mixture with the aid of the metering system in a thin film on an inner region of the reaction surface of the rotating body B so that the thin film flows over the reaction surface of the rotating body B to an outer region of the reaction surface of the rotating body B, the thin film on the reaction surface being electromagnetically irradiated by means of the device for the irradiation of the reaction surface, ii) the thin film leaving the reaction surface as a reaction composition which has copolymer containing acid monomer structural units and polyether macromonomer structural units and iii) the reaction composition being collected after leaving the reaction surface, an acid monomer, a polyether macromonomer and a photoinitiator being present as components of the starting reaction composition.
Abstract:
A system having a reactor for continuous processing of fluid is provided herein. The reactor, in general, includes an outer vessel to accommodate fluids to be processed or used in connection therewith, an inner vessel situated within the outer vessel to serve as an energy exchange surface, and an annular space defined between the outer and inner vessels and along which processing of the fluids can be implemented. The continuous thin film reactor can be used to perform, for example, distillation and evaporation, fluid-fluid or solid-fluid-fluid reactions, organic reactions, cooling, and desalination.
Abstract:
The present invention provides an assembly for use in vertical, gravity flow driven polymerization reactors for combinations of high viscosity, high throughput, and shallow polymer depths. The baffle assembly module of the invention includes a support structure having a plurality of side openings. The side openings allow the escape of vapor liberated from the polymeric melt. The assembly further includes a feed splitter followed by two or more vertically arranged rows of baffle plates with the feed splitter and baffles sequentially positioned in the support structure. The plurality of parallel baffles in a row are angled such that when a polymeric melt contacts a given baffle the polymeric melt moves in a downward direction under the force of gravity. The arrangement of the rows is such that each row (except the lowest row) transfers the polymeric melt to a lower vertically adjacent row until reaching the last row of baffles in the module. According to the vertical arrangement of the components in the baffle assembly module and by stacking additional baffle assembly modules if needed within the reactor, the polymeric melt cascades down the vertical length of the reaction vessel interior. The present invention also provides a polymerization reactor that incorporates the assembly of the invention and a method of increasing the degree of polymerization of a polymer melt by using the assembly of the invention.
Abstract:
The invention relates to the fields of polymer chemistry and relates to a device for the continuous modification of polymers that can be processed into molded articles or semifinished products before, during and after modification. The object of the invention lies in disclosing a device in which the combination of melt production and modification takes place in a continuous method and leads to improved properties of the polymers. The object is attained through a device comprising a device component for converting the polymers into the flowable state, a radiation guard for an electron irradiation and cooling devices, wherein an irradiation device for electron radiation as well as supply and discharge lines are present inside the radiation guard, wherein in the case of the production of solid formed and modified polymers inside the radiation guard, a forming device is present inside the radiation guard and the flowable polymers after the forming device are present floating freely in space in the region of the irradiation.
Abstract:
New methods of operating surface reactors, and such reactors, particularly spinning disk reactors, require that a first reactant is fed to a reactor surface (20) and forms a thin radially outward moving film (60) thereon in a reaction passage (42) formed between the reaction surface (20) and a parallel, closely spaced (less than 1 mm) retaining surface (40). The passage thickness is precisely controllable and the surfaces (20, 40) move relative to one another so that strong shear is applied to the material between them. A second reactant is fed to the surface (20) as a second thin film (65) that as it enters the first film (60), preferably perpendicularly, it is immediately merged therewith along a correspondingly very narrow interaction line (66) by the shear at a rate such as to break up molecular clusters in the films, so that their molecules can aggressively and completely interact by forced interdiffusion. In spinning disk (18) apparatus the first film (60) is fed along the spin axis (14), while subsequent films (65, etc.) are fed at respective distances from the axis (14) such that there is adequate shear for the molecular cluster disruption. Preferably each film (65, etc.) after the first (60) is fed into the reaction passage (42) through a respective thin annular nozzle producing a thin circular film (65) that simultaneously merges with the first film (60) along its entire length.
Abstract:
A reactor including a rotatable disc (3) having a region (13) in an upper surface (5) thereof. Reactant (15) is supplied to the region (13) by way of a feed (4), the disc (3) is rotated at high speed, and the reactant (15) moves from the region (13) so as to form a film (17) on the surface (5). As the reactant (15) traverses the surface (5) of the disc (3), it undergoes chemical or physical processes before being thrown from the periphery of the disc (3) into collector means (7).
Abstract:
An apparatus for producing metal oxide comprising (a) a water vapor generator for generating a water-vapor containing gas with a desired partial pressure of water vapor; and (b) heating equipment for heating a metal salt of a carboxylic acid, the metal salt of the carboxylic acid being disposed in a sample vessel, to a predetermined temperature in a water-vapor-containing gas which is introduced from said water vapor generator.
Abstract:
A process for the production of a reaction product including a carbon containing compound. The process includes providing a film of a fuel source including at least one organic compound on a wall of a reactor, contacting the fuel source with a source of oxygen, forming a vaporized mixture of fuel and oxygen, and contacting the vaporized mixture of fuel and oxygen with a catalyst under conditions effective to produce a reaction product including a carbon containing compound. Preferred products include null-olefins and synthesis gas. A preferred catalyst is a supported metal catalyst, preferably including rhodium, platinum, and mixtures thereof.