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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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WO/1996/007474A1 |
A method for in-situ modernization of a reactor for urea synthesis at high pressure and temperature of the type wherein a co-current flow of a gaseous phase and a liquid phase takes place, comprising a vertical tubular shell (2) in which...
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WO/1996/006045A1 |
In a method of purifying contaminated liquids and gases, a continuous surface film (31) is produced by means of a nozzle (15) and is simultaneosuly irradiated by a suitable radiation source (17), e.g. an UV lamp. The surface film (31) is...
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WO/1996/005138A1 |
A method and apparatus for safely producing hydrogen peroxide by injecting dispersed minute bubbles of hydrogen (28) and oxygen (34) into a rapidly flowing liquid medium (24). The minute bubbles are surrounded by the liquid medium of suf...
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WO/1996/002470A1 |
An apparatus is provided for oxidizing an aqueous suspension of organic matter at elevated pressure. The apparatus has a reactor (10) and an inlet (44) for the aqueous suspension which is introduced to an upstream end of the reactor. A d...
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WO/1995/035329A1 |
A dispersant derivatized from a functionalized hydrocarbon and a polyamine having one primary amine and 1-10, preferably 3-8 secondary or tertiary amines; preferably where said functionalized hydrocarbon is a Koch-derived hydrocarbon.
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WO/1995/035325A1 |
A continuous process for functionalizing olefins, especially polymer olefins in a CSTR or pipe reactor. Esters are preferably produced by continuous reaction of the olefin with carbon monoxide and a nucleophilic trapping agent. The liqui...
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WO/1995/035161A1 |
A membrane reactor (10) for gas or gas/liquid reaction comprising a reaction chamber (12), a permeable membrane (14) in the reaction chamber, a catalyst supported in the permeable membrane, a gaseous reactant inlet (46) to the reaction c...
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WO/1995/035324A1 |
A rapid, batch Koch carbonylation/functionalization reaction of at least one polymer olefin, carbon monoxide, and an aliphatic or aryl alcohol in the presence of an acid catalyst with either an alcohol:polymer olefin mole ratio 1:1, or a...
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WO/1995/034510A1 |
In a method for biological purification of waste water, especially industrial effluent, the water which has to be treated is introduced together with oxygenous gas through a nozzle device into a reaction tube located in a closed reactor ...
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WO/1995/034370A1 |
The specification discloses a gas dispersion pipe in which a gas is introduced via an upper and thereinto, which is ejected via a lower end into a liquid to carry out a gas-liquid contact operation, and gas-liquid contact method and appa...
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WO/1995/033547A1 |
Sulfur oxides (SOx) are scrubbed from combustion effluents with aqueous limestone slurries single-loop, open-tower countercurrent limestone wet scrubbers. Effluent flow rates are greatly increased while L/G values and reaction tank (150)...
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WO/1995/033552A1 |
Sulfur oxides (SOx) are scrubbed from combustion effluents with aqueous limestone slurries with greater efficiency due to the use of an improved entrainment separator (130). In the preferred embodiment of a single-loop, counter-current l...
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WO/1995/031278A1 |
A reactor for two-phase reaction, in particular for urea synthesis at high pressure and temperature of the type wherein a co-current flow of a gaseous phase and a liquid phase takes place, comprises a substantially cylindrical vertical e...
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WO/1995/029753A1 |
This invention relates to a vertically disposed polymerization reactor (2) having a series of essentially circular tray assemblies (10); each tray assembly (10) having a central open vapor chimney (18) and a single flow path (26) compose...
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WO/1995/029752A1 |
This invention relates to a vertically disposed polymerization reactor (2) having a series of essentially circular tray assemblies (10); each tray assembly (10) having a central open vapor chimney (18) and two split-flow paths (26) each ...
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WO/1995/022401A1 |
A reactor (20B) includes a reaction vessel (22B) that defines a reaction chamber (24B). Completely or partially within the reaction chamber is at least one spiroid (28B). The spiroid (28B) is operably associated with the reaction vessel ...
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WO/1995/014636A1 |
A continuous process of preparing hypochlorous acid comprising steps of: (a) contacting droplets (103) of an aqueous solution of a metal hypochlorite (101) having a volume median diameter of less than 500 micrometers with chlorine gas (1...
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WO/1995/014526A1 |
A method for the treatment of chemical wastes, particularly recalcitrant wastes such as spent caustic from the oil, gas, chemical and petrochemical industries, in which normally slow physical mass transfer of gases between phases, and ot...
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WO/1995/011418A1 |
A fluid medium such as a gas and a liquid medium are interacted within a convoluted array (108) of tubes (106), wherein the liquid medium is present as "rain-fall" rather than flooding the array of tubes (106) with a heat transfer medium...
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WO/1995/010482A1 |
A process and apparatus for the production of litharge, in which molten lead is reacted with oxygen at a temperature above the melting point of litharge, whereby litharge is formed as a liquid product. In a preferred embodiment, oxygen i...
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WO/1994/029010A1 |
A catalytic distillation structure (10) having a plurality of corrugated vertically disposed catalyst containing elements (12) separated by inert spacing elements (24) is disclosed. The catalyst containing elements (12) each have two lay...
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WO/1994/029018A1 |
An exothermic chemical reaction, for example, hydroformylation, is carried out in a series of loop reactors (10, 20, 30). Fresh reactant feed is supplied not only to the first reactor (10) in the series but also to the second reactor (20...
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WO/1994/029017A1 |
A multi-phase staged passive reactor (10) for promoting interphasic interaction of a first substance in a liquid phase with a second substance in a non-miscible liquid phase, a solid phase or a gaseous phase. The reactor comprises a plur...
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WO/1994/023813A1 |
Prior to carrying out a gaseous phase chemical reaction, a liquid phase organic compound which is prone to degrade is vaporised at elevated pressures with the aid of a second compound. In one embodiment of the invention, vaporisation is ...
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WO/1994/023259A1 |
A heat exchanger (10) for extracting thermal energy from a process fluid comprises a first group of at least one plate-fin heat exchange module (34a) and a second group of at least one plate-fin heat exchange module (34b). Each heat exch...
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WO/1994/020207A1 |
An exothermic process for forming a product which may be in a liquid phase is disclosed wherein a first reactant (3), preferably a liquid reactant, is directly fed into a reaction zone (10) containing mixing elements (12, 58) and which c...
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WO1994013709A2 |
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least one ethylenic double bond per polymer chain, with carbon monoxide and a nucleophili...
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WO/1994/013709A1 |
A Koch functionalized product which is the reaction product of at least one polymer having a number average molecular weight of at least 500 and at least one ethylenic double bond per polymer chain, with carbon monoxide and a nucleophili...
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WO/1994/008681A1 |
A reaction with distillation column (10) is provided with a plurality of discrete catalytic reaction containers (22). The containers contain a plurality of solid catalyst particles (30) which form a catalytic reaction zone (54). The cont...
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WO/1994/008682A1 |
A reaction with distillation structure (11) utilizes a plurality of distillation trays (12) and catalyst containers (18) which provide a catalytic reaction zone and a primary flow path for descending liquid streams. Catalytic reaction of...
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WO/1994/003566A1 |
Fatty materials are hydrogenated in a plate heat exchanger at a pressure above about 150 psig. The use of high pressure and high shear as provided by the appropriate surface to volume ratio and pressure drop in the heat exchanger, enable...
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WO/1994/001210A1 |
A reactor for introducing a gas into a fluid comprises a mixing tank (12, 43) for the fluid and a partition means (13, 45) for dividing the tank into at least two chambers (21, 89) and (23, 91). The reactor further comprises a first pump...
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WO/1993/022240A2 |
A biogas reactor has a housing totally or partially filled with an active biomass, a gas collection chamber for collecting the gasses that bubble up from the fermenting suspension and a gas bubble-poor sedimentation chamber for the sedim...
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WO/1993/019836A1 |
Components, usually but not exclusively gaseous components, are removed in a liquid medium from gas streams and chemically converted into an insoluble phase or physically removed. Specifically, hydrogen sulfide may be removed from gas st...
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WO/1993/011853A1 |
Water present in a hot gaseous product stream from a reactor system (A, B) (Figure 1) containing hydrogen fluoride is separated from the stream in order to eliminate a potentially corrosive combination of water and HF. The water is remov...
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WO/1993/010862A1 |
A method of destroying organic waste in a bath of molten metal and slag contained in a vessel (3) is disclosed. The method comprises injecting organic waste into the bath to form a primary reaction zone (13) in which the organic waste is...
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WO/1993/002969A1 |
A system for effective utilization of reaction heat and in sit separation of solid and gaseous products in wet oxidation of waste and wastewater. This invention does not require special preheaters for preheating feed streams, therefore r...
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WO/1992/021418A1 |
A vapor-liquid distribution method and apparatus utilize a bubble cap assembly (100) for attachment over an opening in a deck tray of a gas-liquid contact apparatus (e.g., catalytic reactor). The bubble cap assembly (100) comprises a ris...
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WO/1992/016287A1 |
A saddle-type random packing element (10) for use in a vapor-liquid tower which packing comprises an arcuate body having generally parallel, upright flanges (12, 13) on either side, the arcuate body having a plurality of alternating, gen...
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WO/1992/006776A1 |
A gas-liquid column (12) and method having improved mist elimination particularly for the treatment of corrosive fluids which comprises directly introducing a liquid from a liquid distributor (22) resting on a top structured packing laye...
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WO/1992/002295A1 |
Liquid distributor apparatus to distribute liquid uniformly onto a gas-liquid contact packing bed. A prebox receptacle (42) is mounted on and supported by a distributor pan (12), and has a bottom wall (44) with openings (50) which feed l...
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WO/1991/019559A1 |
In a process for carrying out an equilibrium reaction, one or more products are removed by vapour permeation. To obtain high reaction rates at high reaction temperatures, the reaction is carried out in a bubble reactor (1) and the lower ...
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WO/1991/016285A1 |
This invention relates to a process for turbulently flowing together reactants in uniform proportions in a reactor vessel and also to a process for producing ethylbenzene by reacting ethylene and benzene in the presence of a catalyst in ...
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WO/1991/011252A1 |
The invention relates to the structure, method of fabrication and uses of enclosed double plate heat transfer panels with prefabricated main panel bodies. In most applications, a panel is used to conduct a gas-liquid interaction such as ...
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WO/1991/009111A1 |
A chemical, biochemical, or biological reaction or production in a loop reactor, in or into which immiscible phases are produced or introduced, respectively, is carried out in such a manner that for each cycle passage through the loop al...
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WO/1991/007222A1 |
A device intended for fining bubbles generated on the surface of a hollow filament yarn while imparting flowing speed to fluid in contact with the surface of the hollow filament yarn without using power of machines such as pumps. The dev...
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WO/1991/007224A1 |
An elongated, generally vertically extending cocurrent reactor vessel (15) for the production of hypochlorous acid by the mixing and reaction of a liquid alkali metal hydroxide and a gaseous halogen is provided wherein a nozzle (21) is m...
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WO/1990/014879A1 |
In a gas-liquid contact apparatus, liquid is distributed onto packing media (10) by vertical flow tubes (24) mounted on a horizontal deck (20). Each flow tube has a beveled upper end (46), an upper portion above the deck provided with on...
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