Class 564/264 - Purification or recovery

Subclass of Class 564 - Organic compounds -- part of the class 532-570 series
Definition: Processes which are directed to the purification, separation,
No. of patents: 27
Last issue date: 01/29/2008

Number	Title	Issue Date
7323594	Transfection reagents Disclosed are compounds capable of facilitating transport of biologically active agents or substances into cells having the general structure: wherein Q is selected from the gro...	01/29/2008
7232928	Stabilization method of cycloalkanone oxime Cycloalkanone oxime is stabilized by a method comprising bringing the cycloalkanone oxime into contact with at least one compound selected from the group consisting of oxoacids, oxoacid salts, oxoacid esters, oxoacid amides and oxides of boron or phosphorus. In acco...	06/19/2007
7071360	Method for evaporating cyclohexanone oxime A method is provided for evaporating cyclohexanone oxime in which cyclohexanone oxime is evaporated using a falling-film evaporator with wetting the evaporation surface of the evaporator well with the cyclohexanone oxime at a pressure of less than about 1060 Torr wi...	07/04/2006
7022844	Amide-based compounds, production, recovery, purification and uses thereof Methods are disclosed of producing and purifying at least one amide. In accordance with one of the methods disclosed herein, the at least one amide is produced by providing an organic liquid comprising at least one oxime, providing at least one catalyst, adding the ...	04/04/2006
6927308	Method for synthesis of oximes An oxime is synthesized by ammoximation of a carbonyl compound. In stage (i) of the process, a carbonyl compound containing 6 to 20 C atoms is reacted with ammonia and hydrogen peroxide in the presence of a) an organic solvent that is a1) at least partly water-solub...	08/09/2005
6843978	Microporous materials (TIQ-6 and METIQ-6) of high surface area active in oxidation reactions The present invention refers to a microporous material formed by oxygen, silicon, germanium, aluminum, boron, gallium, zirconium and/or titanium in its composition, called TIQ-6, to its catalytic applications in oxidation reactions, and to a method of the TIQ-6 mate...	01/18/2005
6818794	Extraction of ketazine solutions Process for extracting aqueous ketazine solutions which is carried out using an aqueous ketazine solution having a salt content of 5 to 27% by weight and an ammonia content of 0 to 28% by weight to extract at temperatures of 50 to 120° C., which is characterized in...	11/16/2004
6784316	Purification method of Cyclohexanone-oxime The invention relates to a purification method of cyclohexanone-oxime in a solution of solvents immiscible with water, which consists in washing said solutions with water or with an aqueous solution of a base having a pK	08/31/2004
6639108	Ammoximation of ketones and work-up by pervaporation/vapor permeation A process for the work-up of a reaction mixture formed by ammoximation of a ketone, in particular an alkanone or cycloalkanone, by means of hydrogen peroxide and ammonia in homogeneous solution over a titanium-containing catalyst. It comprises the substep...	10/28/2003
6620970	Work-up of the ammoximation products of ketones by liquid-liquid extraction in a ternary solvent system The present invention relates to a process for working up an ammoximation reaction mixture, by separating a catalyst from the reaction mixture, removing the ketone oxime product, discharging the water of the reaction, and recirculating a solvent, where th...	09/16/2003
6566555	Process for preparing oximes Oximes are prepared by reacting carbonyl compounds, hydrogen peroxide and ammonia in the presence of a catalyst system comprising a catalyst comprising titanium, silicon and oxygen and a cocatalyst comprising an acidic solid comprising an organic or inorg...	05/20/2003
6329359	Substituted benzyl oximino compounds The present invention relates to benzyloxyimino compounds of the formula I, ##STR1## where: R1 to R4, X, Y, and Z are as defined in the specification....	12/11/2001
5411936	Cyclohexenone oxime ethers, and their use as herbicides Cyclohexenone oxime ethers of the general formula I ##STR1## where R1 is C1 -C6 -alkyl, A is substituted or unsubstituted C4 -alkylene or C4 -alkenylene, x is nitro, cyano, halogen, C1 -C	05/02/1995
5130486	Process for isomerization of oxime ethers Isomerization of an unsymmetrical ketoxime ether is effected using at least one Lewis acid selected from titanium chloride, titanium bromide, aluminum chloride, aluminum bromide, boron chloride, and boron bromide as isomerizing agents. Examples of the Lew...	07/14/1992
4931592	Storability of molten cyclohexanone oxime The storability of molten cyclohexanone oxime containing 0.5-15% by weight of cyclohexanone and 1-8% by weight of aqueous ammonium bisulfate solution is improved by washing the molten cyclohexanone oxime with a 10-42% strength by weight aqueous ammonium s...	06/05/1990
4873369	Purification of cyclohexanone oxime containing ammonium sulfate Cyclohexanone oxime containing ammonium sulfate is purified by a process in which cyclohexanone oxime in the molten state is passed over an acidic ion exchanger and a basic ion exchanger....	10/10/1989
4868334	Process for the production of anhydrous oxime from an aqueous solution The present invention provides a simple process for the production of anhydrous oxime by the separation of the oxime from an aqueous solution. The process is advantageous because the potential explosive hazards of current processes are eliminated and the ...	09/19/1989
4619823	Radioactive iodine labeled metaraminol and diagnostic agent containing platelets labeled therewith A radioactive diagnostic agent which comprises platelets labeled with radioactive iodine atom-labeled metaraminol in an aqueous medium....	10/28/1986
4323706	Production of acetaldehyde oxime Acetaldehyde oxime, a commercially useful intermediate in the production of pesticides, is prepared by oximating acetaldehyde with an aqueous hydroxylamine-containing solution to form an aqueous oximation reaction mixture and recovering acetaldehyde oxime...	04/06/1982
4256668	Removing aqueous ammonium sulfate from oxime product An organic, substantially water-insoluble oxime product is recovered from the liquid reaction mixture of water, ammonium sulfate and the oxime product. First the reaction mixture is separated into a first liquid layer containing an aqueous ammonium sulfat...	03/17/1981
4158015	Process for the stereoselective synthesis of the E isomer of aryl alkyl oximes Mixtures of the E and Z isomers of aryl alkyl oximes are converted to 98% or greater E isomer by a process comprising treating a solution of a mixture of E and Z isomers in an organic solvent with a protic or Lewis acid, under anhydrous conditions, to pre...	06/12/1979
4061677	Partial dehydration of cyclohexanone oxime The application relates to a process for partial dehydration of cyclohexanone oxime by treatment with an aqueous solution of an inorganic salt, the crude cyclohexanone oxime being extracted at above its melting point countercurrently in an extraction colu...	12/06/1977
3997607	Recycling process for the preparation of cyclohexanone oxime An improved cyclic process for producing cyclohexanone oxime is provided wherein the circulating reaction medium is subjected to a heat treatment, at a temperature of at least 120° C in the presence of nitrous gases, and at an absolute pressure of over 1...	12/14/1976
3960955	Purification process This invention concerns a process for purifying crude oximes, particularly crude n-paraffinone oximes containing carbonyl and/or chlorine contaminants, consisting essentially of treating said crude oximes with urea or thiourea, in the presence of water an...	06/01/1976
3941838	Partial dehydration of cyclohexanone oxime A process for the partial dehydration of cyclohexanone oxime by treatment with aqueous solutions of inorganic salts, wherein the crude cyclohexanone oxime is extracted, above its melting point, with a concentrated ammonium salt solution and/or hydroxylamm...	03/02/1976
3941840	Process for producing ketoximes A process for the production of hydroxylamine, by the catalytic reduction of nitrogen monoxide with hydrogen in a mineral acid medium, followed by the reaction of the resulting mixture to produce saturated ketoximes, especially cyclohexanone oxime, by the...	03/02/1976
3940442	Recycle process for the preparation and processing of a hydroxylammonium salt solution An improved recycle process for the production of cyclohexanone oxime comprising circulating an acidic, aqueous solution containing phosphoric acid or ammonium bisulphate or a mixture thereof between a hydroxylamine synthesis zone and a cyclohexanone oxim...	02/24/1976

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Class 564/264 - Purification or recovery