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JP2008543934A |
A method purifies a starting solid or semi-solid organic composition located in a chamber. The method includes heating the starting organic composition such that molecules of one organic molecular species sublime out of the composition a...
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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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JP4178483B2 |
A solvent contains cycloalkylalkylether (1). A solvent contains cycloalkylalkylether of formula (1), R 1>-O-R 2> (1) R 1>optionally substituted cyclopentyl or cyclohexyl; R 2>optionally substituted 1-10C alkyl or 3-8C cycloalkyl. Indepen...
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JP2008538722A |
The present invention relates to a method for removing volatile compounds from sparingly volatile fluids by means of rectification using an auxiliary and also to separation methods and chemical reactions in which sparingly volatile fluid...
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JP4174850B2 |
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JP4171797B2 |
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JP2008248009A |
To provide a separator which separates a gas hydrate slurry into gas hydrate and water, provided that the gas hydrate slurry is produced by reacting raw material water with raw material gas such as natural gas.The separator A is equipped...
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JP4164546B2 |
Acrylonitrile (AN) or methacrylonitrile (MAN) is manufactured by ammoxidation of propylene or isobutylene. The reactor effluent obtained is transported to a quench column where the hot effluent gases are cooled by contact with an aqueous...
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JP4165812B2 |
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JP2008538091A |
A system and a method for solvent purification is provided. The system includes a solvent storage tank and a filter coupled to the tank for filtering out moisture from the solvent. The method includes providing a tank to hold the solvent...
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JP2008239599A |
To provide a radical scavenger which does not contain a transition metal, is water-soluble and hardly soluble in a hydrophobic organic solvent, furthermore, has a radical scavenging effect even in the absence of oxygen, and particularly ...
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JP4152435B2 |
PCT No. PCT/EP96/01122 Sec. 371 Date Sep. 22, 1997 Sec. 102(e) Date Sep. 22, 1997 PCT Filed Mar. 15, 1996 PCT Pub. No. WO96/29311 PCT Pub. Date Sep. 26, 19964-Acylaminopiperidine N-oxides IaA1B1(Ia)where A1 is hydrogen or an organic radi...
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JP4151942B2 |
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JPWO2006104166A1 |
A carrier for crystallization separation, which is a compound that reversibly changes from a liquid phase state to a solid phase state with a change in solution composition and / or solution temperature, and has a reaction site that bind...
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JP2008201848A |
To provide an apparatus for regasifying a gas hydrate, which continuously and stably supplying a regasified gas to a small lot demander such as a suburban convenient store, ordinary house, etc.The apparatus for regasifying a gas hydrate ...
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JP4146040B2 |
A method for inhibiting polymerization during transportation, storage and/or production of (meth)acrylic acid or an ester thereof includes adding an N-oxyl compound and water to a vinyl compound; or dissolving an N-oxyl compound in water...
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JP4140523B2 |
A solvent contains cycloalkylalkylether (1). A solvent contains cycloalkylalkylether of formula (1), R 1>-O-R 2> (1) R 1>optionally substituted cyclopentyl or cyclohexyl; R 2>optionally substituted 1-10C alkyl or 3-8C cycloalkyl. Indepen...
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JP4134244B2 |
The invention relates to a process for the preparation of sweetening salts consisting of a sweetener derived from aspartic acid and an intense sweetener not derived from aspartic acid by adding to a liquid medium, in any order, (a) a swe...
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JP4132108B2 |
The invention relates to a process for the preparation of sweetening salts consisting of a sweetener derived from aspartic acid and an intense sweetener not derived from aspartic acid by adding to a liquid medium, in any order, (a) a swe...
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JP2008174494A |
To provide a methylenemalonic acid composition that has excellent long term stability, shows little discoloration, and does not decrease its reactivity.A methylenemalonic acid composition comprising methylenemalonic acid with an antioxid...
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JP4125879B2 |
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JP4122528B2 |
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JP4124660B2 |
The invention relates to a method for the production of a purified melt of a monomer melt obtained by condensation, absorption or extraction in a crystallizer, wherein the inlet to the crystallizer is subjected to a mechanical solid/liqu...
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JP4117809B2 |
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JP2008156367A |
To provide a method of commercially advantageously producing a cycloalkyl alkyl ether compound useful as a novel cleaning solvent, a reaction solvent, an extraction solvent, a solvent for electronic and electrical materials, a remover us...
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JP2008149316A |
To efficiently atomize a solution into mist using a plurality of ultrasonic vibrators or using the ultrasonic vibrator itself with a reduced amount of carrier gas.The method of atomizing the solution by which the solution is atomized int...
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JP4110636B2 |
To provide a dehydration method for dehydrating an aqueous solution of an organic solvent by recovering condensation latent heat of the organic solvent vapor being waste heat and a waste heat recovery device. A vapor of an organic solven...
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JP4106078B2 |
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JP4106440B2 |
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JP4093608B2 |
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JP4096580B2 |
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JP2008120801A |
To provide a nonaqueous solvent having an extraordinarily low value of a water content of 15 ppm (hereinafter, referred to as a low water-content nonaqueous solvent), even in a state held in a vessel, and a portioning device for the same...
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JP4092092B2 |
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JP4092738B2 |
In the sepn. of substances in a liquid mixt. by crystallisation in a crystalliser, the surfaces of the crystalliser on which crystals grow is pretreated with a two-phase seeding film. The film comprises crystals of the mixt. suspended in...
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JP2008094818A |
To provide a method for extracting and refining saps of trees, bamboos, etc., without decomposing various kinds of effective ingredients contained in the saps or breaking the saps by heat polycondensation, etc.The method for extracting a...
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JP2008063257A |
To provide a crystallization control method wherein a narrow particle diameter distribution can be realized by a relatively simple apparatus structure.The crystallization control method comprises forming crystal nuclei by applying microw...
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JP4062431B2 |
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JP4063909B2 |
Substituted per(3,6-anhydro)cyclodextrin derivatives of formula (I) are new. R1 = H, halo, OH, OR2, OM, SH, SR2, OCOR2, NH2, NR2R3, CONR2R3, CONH2, CN, COOR2, COOH, OSO2R2, N3 or R2; R2 = aliphatic or aromatic, optionally unsaturated hyd...
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JP4062510B2 |
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JP2008507510A |
The present invention concerns a method for the controlled precipitation of organic molecules which comprises the use of apparatus that is normally used in the field of photography.
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JP4059304B2 |
Purification of N-vinylpyrrolidone (I) comprises crystallisation in a crystalliser. The process includes pre-coating the surfaces of the crystalliser, on which crystals are to be grown during the crystallisation, with a seed layer of (I).
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JP4057103B2 |
An adsorption-desorption process using activated carbon removes perfluoroisobutylene from gaseous streams of halogenated hydrocarbons. Choice of gas and temperature profile used for desorption of adsorbed compounds and regeneration of th...
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JP4050321B2 |
The present invention provides several methods of synthesis and separation in which organic/fluorous phase separation techniques are used to effect separations. The present invention also provides novel compositions of matter comprising ...
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JP4045476B2 |
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JP4046765B2 |
A monomer composition, which containsA) vinyl-containing monomers in which a heteroatom selected from the group consisting of the halogens, nitrogen, oxygen, sulfur and silicon is present on the vinyl group, andB) a compound or a mixture...
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JP4045763B2 |
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JP2008503483A |
A method of separating at least a first non-fluorous compound from a mixture of compounds including at least the first non-fluorous compound and a second fluorous compound includes: charging the of compounds to a non-fluorous solid (stat...
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JP2008502339A |
A process in which olive polyphenol concentrate is obtained from a by-product of olive oil extraction comprising the steps of: a) mixing the by-product with a polar solvent to give a by-product/solvent mixture; b) extracting polyphenols ...
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JP4039628B2 |
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JP4038140B2 |
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