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JP4330214B2 |
A method of controlling the carbon monoxide flow to a reactor wherein acetic acid is produced continuously by feeding carbon monoxide through a control valve and methanol and/or a reactive derivative thereof, there being maintained in th...
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JP4312609B2 |
A reactor for the thermal cleavage of monofunctional and/or polyfunctional carbamic esters into the corresponding isocyanate and hydroxyl components in the liquid phase having devices for introduction of heat into the reactor, where the ...
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JP4311005B2 |
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JP4293732B2 |
The invention relates to a process for the preparation of amines by hydrogenation of nitro compounds, which comprises carrying out the hydrogenation in a vertical reactor whose length is greater than its diameter, having a downward-facin...
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JP2009519820A |
The invention is a high capacity and high efficiency co-current vapor-liquid contacting apparatus for use in distillation columns and other vapor-liquid contacting processes. The apparatus is characterized by an arrangement of modules in...
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JP4252693B2 |
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JP4248396B2 |
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JP2009061439A |
To solve a defect that a gas and a liquid hardly flow in opposite directions (counter flow) with each other though they flow in the same direction (parallel flow) in an existing micro gas absorption device and that only the extraction ef...
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JP4245298B2 |
A method comprises continuously supplying an alcohol to a pressurized reaction system, pressurizing carbon monoxide with a compressor 8 attached to a first feed line 22, for continuously supplying carbon monoxide to the reaction system v...
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JP2009052055A |
To provide a method for the addition of an alkylene oxide to an active hydrogen-containing compound at a high efficiency even when a liquid reaction mixture having a high viscosity is used.When the alkylene oxide is added to the active h...
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JP4237412B2 |
The invention relates to a method for the hydrolytic polymerisation of epsi-caprolactam to polyamide-6, comprising a step (a) in which ring opening of part of the epsi-caprolactam to the corresponding amino caproic acid is effected in th...
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JPWO2006129807A1 |
To chemically react a component contained in a solution with a reaction gas extremely efficiently and rapidly with a gas-liquid interface between a solution and a reaction gas in an ideal state. A solution reactor brings a solution L and...
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JP4205056B2 |
Methods and apparatus are disclosed for mixing fluid streams of different compositions to minimize fluid condensation inside a mixing vessel where the objective is to produce an all-vapor mixture product.
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JP4191879B2 |
Urea is prepared by reacting ammonia and carbon dioxide in an apparatus comprising a vertical condensation and synthesis column (1) and a stripper (21), to provide a urea synthesis solution comprising urea, unreacted ammonia, unreacted c...
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JP4183331B2 |
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JP4171704B2 |
A grid construction for a fluidized bed reactor, the reactor including a reaction chamber defined by substantially vertical walls, in which a fluidized bed of solid particles is maintained, and a windbox under the reaction chamber, in a ...
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JP2008221070A |
To provide a gas-liquid contacting device which is capable of discharging accumulated water in a hollow fiber and has high efficiency of gas-liquid contacting, and to provide a gas-liquid contacting method using the gas-liquid contacting...
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JP4157040B2 |
The present invention relates to a thin film-manufacturing system, which has a simple structure and can be manufactured at a low cost and which also permits the inhibition of the generation of any turbulent flow, convection current and h...
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JP2008534257A |
For heat exchange by passing the first gas phase through the heat exchanger (4) in the column, performing heat exchange with the first stream, and generating a second gas phase in the column. Methods and devices are disclosed. This secon...
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JP2008183501A |
To provide a fluid mixer for efficiently mixing different fluids to efficiently carry out contact reaction of the fluids.The fluid mixer 10 comprises a plurality of fluid mixing units 12 having an aperture part and a mixing part and inst...
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JP4128220B2 |
Process for producing an olefin polymer of a low polydispersity index having low catalyst residues and low chlorine content, by polymerizing olefins in solution in the presence of a cationic catalyst, in a reactor containing a liquid pha...
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JP2008168262A |
To provide a gas-liquid contact device which enables a continued operation over the long term without exchanging a blower means or pipework.This invention relates to the gas-liquid contact device for keeping a gas in contact with a liqui...
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JP4112056B2 |
The present invention provides an improved process for synthesizing urea from ammonia and carbon dioxide while preventing corrosion of sites, that are to be in contact with a condensate, of the joints of a tube plate and cooling tubes in...
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JP2008520420A |
A stacked packing column for heat and/or mass transfer has individual horizontal layers including a lower layer that has a greater density that initiates an accumulation, in particular flooding, and that is 1.5 to 10, preferably 2 to 3 t...
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JP4094694B2 |
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JP4089141B2 |
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JP2008514421A |
The present invention addresses the processing of waste and low-value products to produce useful materials in reliable purities and compositions, at acceptable cost, and with high energy efficiency. In particular, the invention comprises...
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JP4084422B2 |
A process for manufacturing allylhalide from gaseous propene and a gaseous halogen comprising introducing propene into a tubular loop reactor (2) through an inlet nozzle (3); introducing gaseous halogen into the tubular loop reactor (2) ...
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JP4080162B2 |
A process for the conversion of hydrocarbons that are solid or have a high boiling temperature and may be laden with metals, sulfur or sediments, into liquids (gasolines, gas oil, fuels) with the help of a jet of gas properly superheated...
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JP2008511587A |
Horizontal reactor vessel ( 1 ) having a lower part ( 3 ) and two opposite ends ( 9, 10 ), which reactor vessel comprises a liquid inlet ( 13 ) at one end ( 9 ), a fluid outlet ( 14 ) at the opposite end ( 10 ) and a gas inlet device ( 1...
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JP2008511649A |
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides ...
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JP2008511638A |
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides ...
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JP2008511720A |
A method of continuous polymerization using differential radial stirring is provided. Particularly suited for this method is a stirred tube reactor with a plurality of collinear stirring shafts that may rotate independently.
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JP2008511646A |
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides ...
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JP4074200B2 |
In a process to oxidize a gas, a gas flow (G) circulates through a reduction zone (4) and also through a feedback zone (6) linked to the reduction zone. An Independent claim is included for a commensurate assembly in which the gas (G) pa...
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JP4070508B2 |
The liquid distributor (1) for columns (6) has a main passage (2), a plurality of secondary passages (3) and an outflow system (5) of the main passage. The liquid (4) to be distributed can be fed into the secondary passages in accordance...
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JP4065683B2 |
To provide a gas blowing device which can structurally suppress the stagnation of scales and remarkably reduce the frequency of maintenance. In this gas blowing device with a gas introduction pipe 20 for introducing gas to the bottom of ...
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JP4036271B2 |
PCT No. PCT/EP96/03003 Sec. 371 Date Mar. 9, 1998 Sec. 102(e) Date Mar. 9, 1998 PCT Filed Jul. 9, 1996 PCT Pub. No. WO97/03044 PCT Pub. Date Jan. 30, 1997In a process and an apparatus for preparing (cyclo)aliphatic polyisocyanates contai...
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JP4021030B2 |
An axial conveyor has a cylindrical conveyor pipe. It contains an axial powered shaft fitted with propellers, paddles or a screw, with a rim towards the pipe wall. Also claimed is a method of conveying gas/fluid dispersions using this co...
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JP3995719B2 |
A process for preparing 1,4-butanediol by continuous catalytic hydrogenation of 1,4-butynediol comprises reacting 1,4-butynediol with hydrogen in the liquid continuous phase in the presence of a heterogeneous hydrogenation catalyst at fr...
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JP2007269655A |
To provide a reaction method for gas-liquid contact reaction effective for suppressing the fusion of bubbles to perform uniform gas-liquid contact with a simple construction and provide a reaction apparatus for performing the reaction me...
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JP3989193B2 |
In a packed column handling an easily polymerizing substance, the packing with which the column is stuffed is subjected to a water-repelling treatment or a wetting treatment to prevent the easily polymerizing substance in the packed colu...
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JP3989871B2 |
A device and method for generating cyclopropene gas comprising bubbling a gas through a vessel that contains water. A cyclopropene/cyclodextrin complex is added to the water to form an aqueous suspension. Cyclopropenes are used to inhibi...
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JP3987607B2 |
In a urea synthesis process comprising reacting ammonia with carbon dioxide at a urea synthesis temperature and pressure in a vertical urea synthesis zone, bringing the resultant urea synthesis solution containing urea, unreacted ammonia...
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JP2007245088A |
To provide a chemical engineering processing tower device which can minimize the gas pressure loss, and improve treatment efficiency by efficiently redistributing a liquid to be treated flowing down with an uneven stream distribution ins...
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JP3980366B2 |
Continuous, homogeneously-catalyzed hydroformylation of ≥ 6C olefins is such that (a) a vertical cylindrical reactor is used which is divided into ≥ 2 zones stretching lengthwise; (b) olefin, together with synthesis gas, is fed in at...
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JP2007209952A |
To provide a gas-liquid contact apparatus in which the channeling of a liquid is prevented in a moving-bed column to attain efficient gas-liquid contact and which is made to have a simple constitution and mass-produced. The gas-liquid co...
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JP3954647B2 |
PCT No. PCT/IB95/00682 Sec. 371 Date Feb. 24, 1997 Sec. 102(e) Date Feb. 24, 1997 PCT Filed Aug. 24, 1995 PCT Pub. No. WO96/06045 PCT Pub. Date Feb. 29, 1996In a method of purifying contaminated liquids and gases, a continuous surface fi...
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JP3950321B2 |
To provide a gas-liquid contacting device miniaturized by improving contacting efficiency of gas-liquid by effectively using the cross section area of a casing. This gas-liquid contacting device is provided with a cylindrical casing 12, ...
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JP3939340B2 |
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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