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WO/1998/038147A1 |
A reaction system for a Fischer-Tropsch synthesis in which the catalyst is a monolithic catalyst. The monolith comprises a solid body with a large number of discrete and continuous channels whose walls carry an active F-T catalyst material.
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WO/1998/037101A1 |
The present invention teaches the use of an effervescent nozzle to deliver liquid catalyst to a gas phase polymerization system.
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WO/1998/037102A1 |
The use of perpendicular spray nozzles to deliver liquid catalyst to a gas-phase polymerization reactor is taught. Moreover, a method of reducing the amount of gas needed to deliver catalyst is also taught.
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WO/1998/032725A1 |
A process for the liquid phase oxidation of butane to produce acetic acid by reacting oxygen and butane in the presence of a cobalt catalyst in a liquid reaction composition in an oxidation reaction zone characterised in that the process...
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WO/1998/031629A1 |
The invention relates to a method and apparatus for safely producing hydrogen peroxide by injecting dispersed minute bubbles of hydrogen and oxygen into a rapidly flowing liquid medium. The minute bubbles are surrounded by the liquid med...
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WO/1998/031459A1 |
The present invention relates to apparatus for the semi-continuous polymerisation of monomers with the use of a chain initiator. This apparatus is characterised in that it comprises a reactor (1) arranged with its axis substantially vert...
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WO/1998/031453A1 |
An apparatus (20) and method are provided for mixing gas and liquid. An impeller (30) is rotatably mounted inside a draft tube (22). Inlet baffles (34) are mounted adjacent the inlet end (23) of the draft tube (22) in close proximity to ...
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WO/1998/030323A1 |
The invention relates to a process for carrying out a reaction between a gas phase and a liquide phase in the presence of a monolothic catalyst, characterised in that the monolithic catalyst rotates around a horizontal shaft and is alter...
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WO/1998/029458A1 |
The present invention relates to a semi-continuous method for the production of polyadducts of alkylene oxide by an addition reaction of alkylene oxide on a chain initiator having at least one active hydrogen. In the method of the presen...
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WO/1998/023349A1 |
In order to bring a gas and a liquid into contact with one another, for example so as to exchange, remove or add components or calorific value present in the gas and/or liquid, the liquid is guided along one or more walls (5) which are p...
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WO/1998/020966A1 |
Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating the temperature, hold-up time, and conversion in consecutive reaction zones. The temperature in the consecutive reaction zones progressively decr...
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WO/1998/019789A1 |
Methods and devices for controlling the oxidation rate of a hydrocarbon to an acid by adjusting addition of a rate-modulator are disclosed. In order to control oxidation rate, the ratio of hydrocarbon to rate-modulator is appropriately a...
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WO/1998/018544A1 |
The present invention relates to a method and apparatus for adding a treating agent/treating agents to a liquid. More particularly, it relates to a method and apparatus for mixing gas, usually air, with a liquid, e.g., effluent, and diss...
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WO/1998/017381A1 |
The invention relates to a method for carrying out a chemical reaction characterized by an equilibrium in a reaction system designed as a loop reactor, comprising: a reaction vessel (1), at least one loop connected to the reaction vessel...
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WO/1998/015513A1 |
The invention concerns a process for preparing 1,4-butanediol by continuous catalytic hydrogenation of 1,4-butinediol in that 1,4-butinediol is reacted with hydrogen in the liquid continuous phase in the presence of a heterogeneous hydro...
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WO/1998/010859A1 |
The invention concerns a device, specially for the treatment of low-viscosity polymer melts. It is formed by a container (1) with a stirring tool, in which the stirring tool (6) consists essentially of a carrying structure that passes th...
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WO/1998/011016A1 |
This invention is a method for forming hypohalous acid in a mass transfer device. The method comprises: (1) feeding into the device a stream of caustic solution comprising at least one alkali or alkaline earth metal of a hydroxide, oxide...
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WO/1998/007677A1 |
Methods and devices for controlling the reaction rate and/or reactivity of a hydrocarbon to an intermediate oxidation product, such as an acid, within predetermined limits, are disclosed. Control of the reaction rate and/or reactivity wi...
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WO/1998/003477A1 |
A urea synthesis process starting from ammonia and carbon dioxide carried out under a pressure of 120x10?2� to 400x10?2� KPa and a temperature of 140 to 215 �C, in which the reaction takes place in a reactor in which gaseous CO�2...
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WO/1998/001407A1 |
The preparation of 1,2-dichloroethane (EDC) is carried out by feeding ethylene and chlorine into circulating EDC (direct chlorination) such that the reaction mixture boils and the heat of the reaction is led away from the gas space.
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WO/1997/049485A1 |
Methods and devices for controlling the reaction of a hydrocarbon to an acid by making phase-related adjustments are disclosed. In order to improve reaction rate and reactivity of the oxidation, a single phase at the operating temperatur...
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WO/1997/045462A1 |
The invention relates to a process for producing an olefin polymer of a low polydispersity index in a solution polymerization carried out in the presence of a cationic catalyst in a reactor containing a liquid boiling hydrocarbon phase a...
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WO/1997/041953A1 |
The present invention relates to a reactor for carrying out gas phase/liquid phase/solid phase reactions, comprising a housing (1) which encloses an essentially closed reaction chamber (2) for holding a first liquid phase, the solid phas...
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WO/1997/040930A1 |
The present invention relates generally to a method and apparatus for oxidizing an organic liquid, and, more particularly, to a method and apparatus for improving the combustion characteristics of petroleum-based hydrocarbon liquids. The...
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WO/1997/025135A1 |
The present invention relates to a method and apparatus for direct fluorination of hydrocarbons (having 1 to 4 carbons) by using molecular fluorine gas in a liquid medium. The number of reactors (10, 20, 30, 40) or reaction steps is a fu...
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WO/1997/024572A1 |
A ceramic packing element (500) is formed from a stack of ceramic plates (502) having parallel ribs (504) forming parallel grooves therebetween. The grooves are formed into channels by being contacted with the surface of an opposed plate...
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WO/1997/018181A1 |
The invention provides a process for preparing 'alpha'-olefins. According to present invention, the high-pressure ethylene is fully used by utilizing a jet loop reactor during the stage of alykl chain growth reaction, and the selectivity...
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WO/1997/015383A2 |
The invention concerns a process for very finely distributing a gas in a liquid and a system for applying the process. The process is based on a gas bubbles-liquid mixture which is drawn through at least one region of directional capilla...
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WO/1997/015388A1 |
A hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution advantageously, advantageously comprises: a dividing baffle (8) extending horizontally at a preset height in the...
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WO/1997/013576A2 |
Shear mixing apparatuses and associated methods are disclosed for controllably and economically producing small gas bubbles, for example, of an average diameter of less than about 0.5 millimeters in a liquid, whereby mass transfer of the...
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WO/1997/013577A2 |
A flow reactor is disclosed of the type described in the preamble to claim 1 and which may be used to carry out various chemical processes - such as, for example, the synthesis, the cleavage or the hydrogenation of substances. The reagen...
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WO/1997/011973A1 |
The invention relates to a thin-film treatment device with a cylindrical treatment vessel and a rotor fitted centrally therein and having agitators which are movable and are inclined at an angle 'alpha' to the rotor axis, in which the ro...
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WO/1997/010194A1 |
A process for ammonia and methanol co-production in a plant comprising a secondary reformer section, a high-temperature CO conversion section and a low-temperature CO conversion section, arranged in series, and an ammonia synthesis secti...
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WO/1997/006886A1 |
The present invention provides a method for the thermal treatment of material in a rotating conical chamber (4) placed in a housing (1). According to the invention material, brought into the rotating chamber (4) and ejected due to the co...
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WO/1997/005061A2 |
The invention refers to the equipment designed for continuous production of precipitated calcium carbonate from low concentration lime milk provided for introduction of flue gases with CO2 content. The precipitated calcium carbonate prod...
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WO/1997/003927A1 |
A method of contacting a gas and a liquid comprises providing an elongate substantially cylindrical reactor (1) having adjacent a first end thereof an inlet region (4) of reduced cross sectional area, introducing at least some of the gas...
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WO/1997/003044A1 |
A process and device are disclosed for preparing (cyclo)aliphatic biuret groups-containing polyisocyanates from (cyclo)aliphatic diisocyanates and steam or a dehydrating substance as reactives that are mixed with each other in a stirring...
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WO/1996/040427A1 |
A process for producing a substantially dry polymer particle powder. A mixture of polymerization reagents is formed from a mixture of at least one monomer source and a solvent selected from the group consisting essentially of water and o...
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WO/1996/040610A1 |
Methods and devices for making intermediate oxidation products by atomizing a first liquid containing a reactant into a gas containing an oxidant in a manner to form an intermediate oxidation product different than carbon monoxide and/or...
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WO/1996/040373A1 |
A method and apparatus are disclosed for injecting vaporizable material, such as a vaporizable waste, into a molten bath. A gas is injected into the molten bath at a rate which is sufficient to cause the gas and the molten bath to form a...
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WO/1996/031442A1 |
The invention concerns an arrangement for oxidizing an aqueous medium containing organic and/or oxidizable inorganic substances at high temperature and high pressure. In a reactor the aqueous medium is exposed to oxygen in order to reduc...
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WO/1996/030117A1 |
Multitube falling film reactor (MTR) for continuous manufacturing of sulfonated and/or sulfated products using gaseous, diluted sulfur trioxide, (SO3(dil)) to produce surface active agents or simply surfactants, useful in the cosmetic an...
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WO/1996/029136A1 |
Method and apparatus for creating gas-liquid contact for highly efficient mass transfer between gas and liquid comprises a gas-liquid contactor assembly (100) including a hollow porous tube (101) surrounded by an outer jacket (108) defin...
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WO/1996/027434A1 |
In a reaction container for the continuous chemical treatment of liquids, in particular effluents, with a liquid inlet duct and a liquid discharge duct (3 and 4 respectively) at the two end faces, and with a container outer casing (1) wh...
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WO/1996/027412A1 |
A method and an apparatus produce a product in at least one phase from an organic component in a feed gas stream. The method includes forming a process zone including a process molten bath and a process gas space disposed over the proces...
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WO/1996/022826A1 |
A device for contacting a gas with a liquid, including a chamber (10) containing different levels of perforated plates (12, 34) forming liquid trickle-down surfaces, the perforated plates (12) on one level being symmetrically arranged on...
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WO/1996/020773A1 |
A waste gas scrubber includes a hollow, cylindrical atomizer, mounted rotation about its longitudinal axis. The atomizer is partially submerged in a pool of liquid. The atomizer has relatively large openings at its two ends, and has a pl...
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WO/1996/016732A1 |
The invention concerns a gas generator (20) for the production of a gas by chemical reaction between an educt gas and a liquid, the gas generator including a closed reaction chamber (22) with a liquid-feed line (104), a liquid-outlet lin...
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WO/1996/016107A1 |
The invention provides a continuous process for the preparation of polyamides, equipment in which the polymerization process can be conducted, and process control methods for said polymerization process.
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WO/1996/007467A1 |
A method of removing organic contaminants from a process gas by collecting the process gas, injecting an absorption liquid into the process gas to form a two-state absorption liquid and process gas mixture, communicating said mixture thr...
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