Class 562/597 - Oxalic acid per se or salt thereof

Subclass of Class 562 - Organic compounds -- part of the class 532-570 series
Definition: The compound which is oxalic acid (see structure below)
No. of patents: 109
Last issue date: 01/06/2009

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Number	Title	Issue Date
7473802	Method of producing near-infrared absorbing dye compound A method of producing a near-infrared absorbing dye compound, useful for image forming materials, infrared heat-sensitive recording devices, optical film materials, and the like, containing a process of reacting a compound represented by formula (I) with peroxomonos...	01/06/2009
7405322	Manufacture of oxalic acid dihydrate A process for the manufacture of oxalic acid dihydrate in which an aqueous solution of sodium oxalate is contacted with hydrochloric acid and the resulting mixture then cooled to precipitate oxalic acid, followed by optional recovery and recycling of the sodium oxal...	07/29/2008
7351859	Heat activated tertiary amine urethane catalysts This invention concerns a compound formed from a tertiary amine-carboxylic acid salt, where the carboxylic acid and tertiary amine are selected such that the catalyst salt is blocked at room temperature and becomes unblocked at an elevated temperature. The compound ...	04/01/2008
7244862	Manufacture of oxalic acid dihydrate A process for the manufacture of oxalic acid dihydrate in which an aqueous solution of sodium oxalate is contacted with hydrochloric acid and the resulting mixture then cooled to precipitate oxalic acid, followed by optional recovery and recycling of the sodium oxal...	07/17/2007
7132456	MCH receptor antagonists The present invention relates to a melanin concentrating hormone antagonist compound of Formula I: (I) wherein Ar1, Ar2, Ar3, L1, L2 and Q areas defined, or a pharmaceutically acceptable salt, solvate, enantiome...	11/07/2006
7087765	Compounds active at a novel site on receptor-operated calcium channels useful for treatment of neurological disorders and diseases Method and compositions for treating a patient having a neurological disease or disorder, such as stroke, head trauma, spinal cord injury, spinal cord ischemia, ischemia- or hypoxia-induced nerve cell damage, epilepsy, anxiety, neuropsychiatric or cognitive deficits...	08/08/2006
7060851	Method of preparing retroviral protease inhibitor intermediates Chiral hydroxyethylamine, hydroxyethylurea or hydroxyethylsulfonamide isostere containing retroviral protease and renin inhibitors can be prepared by multi-step syntheses that utilize key chiral amine intermediates. This invention is a cost effective method of obtai...	06/13/2006
6849760	Method of preparing retroviral protease inhibitor intermediates Chiral hydroxyethylamine, hydroxyethylurea or hydroxyethylsulfonamide isostere containing retroviral protease and renin inhibitors can be prepared by multi-step syntheses that utilize key chiral amine intermediates. This invention is a cost effective method of obtai...	02/01/2005
6660505	Isolation of carboxylic acids from fermentation broth A process for recovering carboxylic acids from an aqueous mixture such as a fermentation broth using a solvent containing at least one olefin without the need for first removing the spent microorganism cells is provided. A co-solvent which increases the p...	12/09/2003
6652820	Methods of making cesium salts and other alkali metal salts A method of making a cesium salt is described and involves reacting a cesium sulfate containing solution with lime to form 1) a solution containing at least cesium hydroxide and 2) a residue comprising calcium sulfate. The method further involves removing...	11/25/2003
6534680	Dicarboxylic acid crystallizates Dicarboxylic acid crystals are prepared from a solution containing at least one organic dicarboxylic acid in a process in which at least one anionic polyelectrolyte having a molecular weight of at least 2000 is added to the solution before or during the c...	03/18/2003
5997833	Apparatus and process for purifying highly impure calcium hydroxide and for producing high-value precipitated calcium carbonate and other calcium products A solution process for the purification of calcium hydroxide, particularly from hydrated carbide lime, which is subsequently used as a feed stock for a high-value calcium product, preferably calcium carbonate. Precipitated calcium carbonate is formed by r...	12/07/1999
5846500	Process for purifying highly impure calcium hydroxide and for producing high-value precipitated calcium carbonate and other calcium products A solution process for the purification of calcium hydroxide, particularly from hydrated carbide lime, which is subsequently used as a feed stock for a high-value calcium product, preferably calcium carbonate. Precipitated calcium carbonate is formed by r...	12/08/1998
5831117	Method of preparing retroviral protease inhibitor intermediates Chiral hydroxyethylamine, hydroxyethylurea or hydroxyethylsulfonamide isostere containing retroviral protease and renin inhibitors can be prepared by multi-step syntheses that utilize key chiral amine intermediates. This invention is a cost effective meth...	11/03/1998
5495046	Alkoxyphenylalkylamine derivatives An alkoxyphenylalkylamine derivative represented by the following formula: ##STR1## (wherein X1 and X2 may be either the same or different from each other and each represents a hydrogen atom, a halogen atom, a hydroxyl group, an...	02/27/1996
5373023	Tetrahydronaphtalene derivatives, their preparation and pharmaceutical compositions containing them The invention provides compounds which are tetrahydronaphthalene derivatives of the formula (I) ##STR1## wherein R1 represents a halogen atom, a cyano group, a nitro group, an unbranched (C1 -C6) alkoxy group, a (C	12/13/1994
5336793	Preparing carboxylic acids or esters by oxidative cleavage of unsaturated fatty acids or esters A method of preparing carboxylic acids or esters thereof by the oxidative cleavage of unsaturated fatty acids or esters thereof is carried out in a two-phase aqueous-organic system in which the organic phase contains the unsaturated fatty acid and/or the ...	08/09/1994
5298654	Method for producing coprecipitated multicomponent oxide powder precursors Guanidine oxalate is used as a precipitating agent in the coprecipitation of multicomponent oxide powder precursors. A solution of a soluble inorganic salt is combined with a solution of guanidine oxalate. A resultant metal oxalate is precipitated from th...	03/29/1994
5196580	Recovery of oxalate from solutions containing complexes of iron and chromium A method is disclosed for recovering oxalate from oxalate containing solutions containing complexes of iron and chromium. The method involves adjusting the pH of the solution to from about 1 to 2, adding calcium chloride in an amount equal to at least abo...	03/23/1993
5192358	Oxalic acid derivatives, their preparation and plant growth regulators containing them Oxalylhydroxamic acid derivatives of the formula I R1 --ON(R2)--CO--CO--X--R3 I, where the substituents have the following meanings: X is oxygen or sulfur; R1 is substituted or unsubstituted alkyl, alkenyl or ...	03/09/1993
5171887	Process for the preparation of oxalic acid and sodium hydrogen oxalate from crude sodium oxalate A process for producing oxalic acid, sodium oxalate or mixtures thereof comprises treating crude sodium oxalate solids or slurry, such as produced by the Bayer process in treating bauxite. The crude sodium oxalate solids or slurry include at least aluminu...	12/15/1992
5166416	Propenone oxime ethers, a method of preparing them, and pharmaceutical compositions containing them The invention relates to new propenone oxime ethers, a method of preparing them and pharmaceutical compositions containing them. Said new propenone oxime ethers have the formula ##STR1## in which--Ar and Ar' each independentlyl denotes a phenyl group ...	11/24/1992
4895842	Phenylalanine derivative and proteinase inhibitor A phenylalanine derivative having the formula (I): ##STR1## where R1 and R2 are independently hydrogen provided that both R1 and R2 are not hydrogen at the same time; C1 -C8 alkyl which may...	01/23/1990
4876282	1-Phenylalkylamines as selective serotonin uptake inhibitors The present invention provides 1-phenyl-(naphthalenyl)alkylamines which are selective inhibitors of serotonin uptake....	10/24/1989
4822760	Process of regenerating palladium salt catalysts A process of regenerating a palladium salt catalyst comprising, in combination, steps of: (I) heating an organic residue containing a palladium salt catalyst which has been separated from a reaction solution, at a temperature of not lower than 330° C. un...	04/18/1989
4788010	Amino substituted benzenepropanols Hypotensive activity is exhibited by compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof wherein R1 is hydrogen or alkyl; R2 and R3 are each independently phenyl, substituted phenyl, cy...	11/29/1988
4730080	Process for the preparation of diesters of alkanedioic acids Preparation of diesters of alkanedioic acids by reacting a dihydrocarbyl peroxide with carbon monoxide and optionally with an alpha-ethylenically unsaturated compound in the presence of a solvent, a Group VIII noble metal or a compound thereof and of a cu...	03/08/1988
4705894	Process for recovery of organic acids from aqueous solutions A mixture of trialkyl phosphine oxides (HTRPO) was prepared having the formula: ##STR1## wherein R1, R2 and R3 are same or different alkyl groups of 5 to 9 carbon atoms and the total number of carbon atoms and the tot...	11/10/1987
4683315	Reductive coupling of linear carbon-containing ligands via transition metal complexes The present invention is directed to high-coordination transition metal complexes, i.e., those of coordination number seven and above, and the use thereof in the room temperature/atmospheric pressure formation of carbon-carbon bonds via reductive coupling...	07/28/1987
4597902	N-(arylthioalkyl)-N'-(aminoalkyl)ureas N-(arylthioalkyl)-N'-(aminoalkyl)ureas and thioureas and oxidation derivatives having the formula ##STR1## wherein B is thio, sulfinyl or sulfonyl; R1 and R2 are hydrogen, loweralkyl, cycloalkyl, 2-furanyl, phenyl, substituted p...	07/01/1986
4588746	Propylamine derivatives Disclosed are e.g. certain novel 2-benzyl-3-(substituted)-phenoxypropylamines, their methods of synthesis and pharmaceutical compositions. Said compounds are useful as potent and centrally active serotonin uptake inhibitors for the treatment of psych...	05/13/1986
4584404	Substituted phenoxyphenylproply dimethylamines Selective biogenic amine uptake inhibitors, 3-substituted phenyloxy-3-phenylpropyldimethylamines....	04/22/1986
4490392	Benzylalcohol derivative and process for preparing A benzylalcohol derivative of the formula: ##STR1## wherein R is hydroxy, benzyloxy, halogen or alkoxy having one to four carbon atoms, and Ring A is monomethoxyphenyl, dimethoxyphenyl, trimethoxyphenyl or 3,4-methylenedioxyphenyl, or a pharmaceutica...	12/25/1984
4490297	Method for the recovery and reuse of cobalt and/or manganese components of catalysts A process is provided for the recovery and recycling of spent cobalt and/or manganese catalysts used in the air oxidation of alkyl aromatics in acetic acid. The catalysts are isolated in the form of oxalates of extremely low solubility from the acetic aci...	12/25/1984
4450173	Compounds and method for treatment or prophylaxis of cardiac disorders A short-acting ଲ-blocking compound of the formula ##STR1## wherein Ar may be substituted or unsubstituted aromatic, Y may be a straight or branched carbon chain or aralkyl, R may be lower alkyl, lower alkenyl, lower alkynyl, aryl or aralkyl, an...	05/22/1984
4390509	Process for manufacturing ammonium phosphate utilizing an oxalic acid acidulating process A process for the manufacture of phosphoric acid from phosphate rock is provided. The phosphate rock is digested or acidulated with an acid solution containing oxalic acid to produce phosphoric acid and calcium oxalate. Useful by-products are also formed ...	06/28/1983
4386090	Nitrogen containing 2,3-dihydro naphthalenes, compositions and use The present invention concerns heterocyclic aminoalcoyl derivatives having the formula: ##STR1## wherein n=1, 2 or 3; A represents a nitrogen atom or the CH group, X=CH2 or CH2 O; R represents a phenyl nucleus possibly subs...	05/31/1983
4376097	Hydrogen generator for motor vehicle Oxalic acid, dispersed in glycerol is heated to form formic acid which is then heated at a higher temperature to form hydrogen. By-product carbon dioxide is absorbed. The hydrogen is used directly with a fuel cell to produce electricity or as fuel for an ...	03/08/1983
4355183	Decolorization treatment Inhibition of the formation of color bodies and color-forming materials and other contaminants and/or decolorization of discolored sulfur-containing organic compounds containing divalent sulfur by addition of a small amount of oxalic acid....	10/19/1982
4355045	Anti-inflammatory 1-phenylethanolamine derivatives pharmaceutical compositions thereof and processes for their manufacture The invention relates to topically anti-inflammatory 1-phenylethanolamine derivatives of the general formula I: ##STR1## or acid-addition salts thereof, to pharmaceutical compositions thereof, and to analogy processes for their manufacture. A represe...	10/19/1982

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Class 562/597 - Oxalic acid per se or salt thereof