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JP3217854B2 |
PURPOSE: To obtain a purified organometallic compound useful as a raw material for the production of compound semiconductors such as zinc selenide, circuit-forming materials, etc., by contacting a crude organometallic compound with a cop...
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JP3218778B2 |
PURPOSE: To obtain N-methyl-2-pyrrolidone with low coheration with time by a simple operation. CONSTITUTION: A purified N-methyl-2-pyrrolidone is obtained as a distillate by distillation after the heat treatment of N-methyl-2-pyrrolidone...
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JP2001279278A |
To provide a gas hydrate-dewatering apparatus or a multistage gas hydrate-dewatering apparatus capable of increasing the generation efficiency of gas hydrate, and at the same time, increasing dewatering efficiency by hydrating an unreact...
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JP2001279279A |
To provide a gas hydrate-manufacturing apparatus and a multistage gas hydrate-manufacturing apparatus for generating gas hydrate by effectively hydrating the gas which comprises multiple components of hydrate-forming materials, and capab...
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JP2001278820A |
To provide a gas hydrate-producing reactor capable of reacting a gas hydrate-forming substance with reacting water sprayed in large amounts and efficiently producing the gas hydrate in large amounts. This gas hydrate-producing reactor co...
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JP2001279277A |
To provide a system for effectively storing and supplying natural gas by effectively treating BOG. This system comprises the following: an introducing means 11 for supplying the BOG taken out from an LNG tank under normal pressure withou...
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JP2001517680A |
The invention concerns a composition for preventing radical polymerisation of ethylenically unsaturated monomers characterised in that it comprises at least a cathechol derivative and at least an aromatic ether.
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JP3216268B2 |
PURPOSE: To produce an epoxide at a low cost by oxidizing an olefin with oxygen in the presence of an aldehyde without using a catalyst or using an easily available and recoverable catalyst requiring low drainage treatment load. CONSTITU...
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JP3217154B2 |
PURPOSE: To obtain an optically active polyurethane which can be used as an optical resolving agent by addition-polymerizing a specified optically active 1,3-diol with a diisocyanate. CONSTITUTION: An optically active 1,3-diol of formula...
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JP2001270846A |
To provide a method for carrying out the removal of an unreacted alcohol with good productivity without raising the acid value of the finally obtained ester. The distilling off of the unreacted alcohol is carried out by feeding liquid wa...
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JP2001261586A |
To obtain a derivatization reagent capable of forming diastereomers under a mild derivatization condition and providing a large separation degree between the diastereomers in an optical resolution using HPLC.A racemic isomer of an alcoho...
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JP2001515906A |
There is provided according to the invention an inhibitor of a serine protease enzyme which is a substituted derivative of trans-hexahydropyrrolo[3,4-b]pyrrol-2-one.
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JP3212093B2 |
Opticallly active adsorbents based on network polymerized derivative of dicarboxylic acids, diamines or diols which are chemically bonded to a carrier. The derivatives can be polymerized by radical polymerization or through hydrosilylati...
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JP2001252638A |
To provide a method and a device for treating an organic chlorine compound capable of easily and sufficiently decomposing and removing the organic chlorine compound such as dioxins contained in the matter to be treated, especially in the...
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JP2001515515A |
A cyclic compound of formula (I)wherein Rx groups which may be the same or different are selected from -O-(CH2)n-O- where n is an integer of from 2-6; Ry and Rz groups which may be the same or different are independently selected from hy...
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JP2001514192A |
The invention relates to a method for isolating anionic organic substances from aqueous systems using polymer nanoparticles with cationic pH-sensitive surface groups. Extraction can be carried out directly from diluted solutions, biologi...
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JP3205177B2 |
PURPOSE: To provide a glycine purification method capable of easily removing minute amounts of impurities from an aqueous solution of crude glycine, thus capable of obtaining glycine crystal with extremely low impurity content through co...
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JP2001235278A |
To provide a method and a system for drying a hard to dry matter sufficiently at a low cost and to remove monomer uniformly and sufficiently while shortening the time.The method for drying a hard to dry matter employs a filter/ dryer 1 c...
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JP2001232156A |
To provide a pervaporation separation method and a vapor separation method of making good use of a difference in permeation speeds when the subjects to be separated are permeated through a molecular sieve type carbon film having minute p...
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JP2001233840A |
To provide a new method for separating a mixture containing an amide compound and an acid in order to solve problems that a large amount of a counterion or a base as a third component is required when an attempt to separate the amide com...
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JP2001233797A |
To provide a method for preventing the corrosion of a glass-lined product brought into contact with a liquid containing fluorine.This method for preventing a glass-lined product brought into contact with the fluorine-containing water is ...
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JP2001226330A |
To provide a profitable method for producing an optically active 1-(4-halogenophenyl)ethylamine compound.This method for producing the optically active 1-(4- halogenophenyl)ethylamine compound, characterized by reacting a 1-(4- halogenop...
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JP2001226333A |
To provide a method for industrially simply optically resolving 1- amino-6-methoxyindane in a good yield.This method for producing the optically active aminoindane derivative, characterized by reacting (±)-1-amino-6-methoxyindane with a...
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JP2001511772A |
A process is disclosed for the neutralization of amine or alkanolamine heat stable salts with aqueous KOH or with alkali metal base, such as potassium hydroxide, sodium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate...
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JP3197818B2 |
To provide a safe and economical dechlorination method for organic chlorides which are very difficult to be decomposed, which has no problem in respect of processes for disposal thereof. In dechlorination wherein an organic chloride and ...
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JP2001213853A |
To provide a method for optical solution for (±)-formylleucine capable of industrially advantageously producing optically active N-formylleucine in a high yield.This method for optical resolution for (±)-formylleucine is characterized ...
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JP2001213844A |
To provide an apparatus and a method for efficiently producing a (meth)acrylic acid ester, especially a poly(meth)acrylate by using a metal material not being corroded with a reaction solution containing various kinds of compounds, a cat...
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JP2001199957A |
To obtain a tryptophan crystal excellent in solid-liquid separation processing. This method comprises keeping a tryptophan solution under a condition of pH 8-13 and room temperature to 100°C for 0.5-1 h and crystallizing the resultant.
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JP3189023B2 |
PURPOSE: To purify an arabinogalactan-containing composition free from coloration or odor, capable of long-term storage without reversion in coloration or odor and useful as a food material or an industrial raw material by conducting a c...
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JP3184851B2 |
PURPOSE: To stabilize a higher aliphatic sex pheromone compound having unsaturated double bond by adding a phenolic antioxidant and a specific benzotriazole compound to the pheromone compound. CONSTITUTION: A higher aliphatic sex pheromo...
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JP3182535B2 |
A process for stabilizing an ethylenically unsaturated monomer or oligomer from premature polymerization is disclosed whereby a stabilizing amount of an N-hydroxy substituted hindered amine is added to said polymerizable monomer or oligo...
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JP2001181216A |
To provide a profitable method for producing an optically active unsaturated hydrocarbon or its halogenated compound, by which the optically active unsaturated hydrocarbon or its halogenated compound having a high utility value in variou...
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JP2001172224A |
To provide a method for preventing polymerization of a vinyl compound by using an inexpensive polymerization inhibitor having an effect in a small amount even in the absence of oxygen and in the presence of water.This method for preventi...
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JP2001162102A |
To provide a device and method for recovering fluorocarbon capable of efficiently recovering a large volume of fluorocarbon.A mixture of fluorocarbon with oil in the recovering device is recovered in a 1st vessel 3. When the liquid quant...
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JP2001507742A |
The present invention provides a process for recovering gas from a clathrate hydrate comprising the steps of:(a) providing a clathrate hydrate within an occupying zone;(b) positioning a source of electromagnetic radiation within said cla...
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JP3174818B2 |
PURPOSE: To provide a process for easily producing a crystal having improved dissolution rate, especially a process for increasing the dissolution rate of a sparingly soluble drug crystal and converting the crystal to a drug crystal havi...
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JP2001151704A |
To provide a phosphorus-free polymerization inhibitor composition.This phosphorus-free polymerization inhibitor composition contains (a) at least one N-oxyl radical and (b) a compound of the general formula (X) [(n) is an integer of 0 to...
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JP2001506539A |
(57) [Summary] The present invention relates to a method for separating an organic compound by single-step or multi-step suspension crystallization, in which each step separates a liquid phase from a crystallization device, a crystalliza...
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JP2001137613A |
To provide a fine chemical device capable of performing liquid-liquid material transfer by letting a small quantity of liquids immiscible to each other stably flow while being in contact with each other in layer and then continuously sep...
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JP3168206B2 |
A method of distributing a liquid in the fluid bed of a down-flow, or an up-flow, fluid bed reactor (50) comprising a vertical reactor (54) with an inlet, an outlet, and a fluid bed (A,B,C) of particles, wherein (a) the particles (51) an...
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JP2001131115A |
To provide a method of manufacturing for an adipate of 1,3-bis(aminometyl)cyclohexane having high concentration of cis isomer by using 1,3-bis(aminometyl)cyclohexane which is a mixture of cis and trans isomers and adipic acid as raw mate...
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JP2001131116A |
To provide a method of distillation capable of inhibiting polymerization in a distillation apparatus in distillation of a liquid including material liable to polymerize such as a (meth)acrylic acid and a (meth)acrylate. One or more conde...
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JP2001131094A |
To provide a method for efficiently producing an aromatic compound isomer, capable of suppressing deterioration of an adsorbent containing zeolite and prolonging the life of adsorbent. In this method for producing the isomer by adsorbing...
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JP3165633B2 |
To readily produce a propenyl ether compound, cross-linkable and curable by cationiu polymerization by carrying out the catalyst removal and purification after a rearrangement reaction by using a silicate-based adsorbent. (A) An allyl et...
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JP2001124755A |
To provide a rapid and appropriate method by HPLC for purifying compounds from a compound library, e.g. a combinatorial library or the like. The method is applied to purify the whole of the compound library without changing correlated pu...
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JP2001505929A |
Polymerization is inhibited during the anaeroic production of styrene through the addition of a combination of a stable nitroxide free radical compound and a non-toxic phenylenediamine compound.
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JP2001505888A |
Substance mixtures comprising(A) vinyl-containing compounds,(B) an active amount of a mixture inhibiting the premature polymerization of the vinyl-containing compounds, comprising(i) at least one N-oxyl compound of a secondary amine whic...
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JP2001122806A |
To provide an apparatus and a method for recovering a fluorocarbon by which the content of the fluorocarbon in a recovered oil can be reduced. This apparatus for recovering the fluorocarbon is composed by installing a liquid quantity swi...
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JP2001114709A |
To provide a method for easily and efficiently removing an adhesive tar-like liquid layer from a mixed layer of a solid player of valuables with a tar-like liquid layer. A solid and liquid mixed layer consisting of a solid phase comprisi...
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JP2001114363A |
To provide a method for preventing the generation of particles composed of an SiO2 as a main component in a cylinder for an organic silane compound. When an organic silane compound represented by the formula: SiHnR4-n (wherein n = a 0-3 ...
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