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| Number | Title | Issue Date |
| 8143441 | Deeply reduced oxidation catalyst and its use in preparing N-(phosphonomethyl) glycine compounds This invention relates to an improved catalyst, comprising a carbon support having a noble metal at its surface, for use in catalyzing liquid phase oxidation reactions, especially in an acidic oxidative environment and in the presence of solvents, reactants, interme... | 03/27/2012 |
| 8026389 | Solid and water-soluble active ingredient and herbicide formulation, production process therefor, and process for controlling weeds The present invention provides active ingredients and herbicide formulations, as well as the production processes therefor. The active ingredient of the invention is a dry, solid ammonium salt of glyphosate, having high purity (95 to 100%) and low humidity ( | 09/27/2011 |
| 7750180 | Process for the preparation of N-phosphonomethylglycine and derivatives thereof N-phosphonomethylamines are produced by reaction of an amine substrate with a halomethylphosphonic acid or salt thereof, a hydroxymethylphosphonic acid or salt thereof, or a dehydrated self-ester dimer, trimer or oligomer of hydroxymethylphosphonic acid. Among the p... | 07/06/2010 |
| 7745660 | Process for recovering a crystalline product from solution An improved process for recovering a crystalline product (particularly an N-(phosphonomethyl)glycine product) from a solution comprising both a product subject to crystallization and undesired impurities is provided. ... | 06/29/2010 |
| 7705178 | Altering the crystal size distribution of N-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality Improved processes for preparing and crystallizing N-(phosphonomethyl)iminodiacetic acid are provided. The processes include adding N-(phosphonomethyl)iminodiacetic acid seed crystals to N-(phosphonomethyl)iminodiacetic acid reaction solutions. Provided are beds of ... | 04/27/2010 |
| 7687663 | Recovery of noble metals from aqueous process streams This invention generally relates to processes for recovering solubilized noble metals from aqueous process streams, in particular, aqueous process streams generated in the preparation of an N-(phosphonomethyl)glycine product, for example, by noble metal-catalyzed ox... | 03/30/2010 |
| 7504534 | Reaction systems for making N-(phosphonomethyl) glycine compounds This invention generally relates to liquid phase oxidation processes for making N-(phosphonomethyl)glycine (also known in the agricultural chemical industry as glyphosate) and related compounds. This invention, for example, particularly relates to processes wherein ... | 03/17/2009 |
| 7435847 | Preparation of solid ammonium glyphosate using organic solvent in extraction A method of preparing ammonium glyphosate suitable for preparation of water-soluble solid ammonium glyphosate formulation by an extraction with organic solvent in a gas-liquid-solid phase system, which comprises adding glyphosate and water into a reactor with a stir... | 10/14/2008 |
| 7390920 | Oxidation catalyst and process This invention relates to the field of heterogeneous catalysis, and more particularly to catalysts including carbon supports having formed thereon compositions which comprise a transition metal in combination with nitrogen and/or carbon. The invention further relate... | 06/24/2008 |
| 7329778 | Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts This invention is directed to a process for making a salt of a carboxylic acid. The process comprises contacting a catalyst with an alkaline mixture comprising a primary alcohol. In one embodiment, for example, the catalyst comprises a metal support (preferab... | 02/12/2008 |
| 7297657 | Process for the preparation of N-(phosphonomethyl)glycine by oxidizing N-substituted N-(phosphonomethyl)glycine This invention is directed to an improved process for the preparation of N-(phosphonomethyl)glycine (i.e., “glyphosate”), a salt of N-(phosphonomethyl)glycine, or an ester of N-(phosphonomethyl)glycine. The process comprises combining an N-substituted N-(phospho... | 11/20/2007 |
| 7294733 | Method for preparing formylphosphonic acid An improved process for the manufacture of formylphosphonic acid derivatives is reported. An aminomethylphosphonic acid substrate is contacted with a reagent selected from the group consisting of water, an alcohol, a phenol compound, and mixtures thereof and an oxid... | 11/13/2007 |
| 7291751 | Use of a supplemental promoter in conjunction with a carbon-supported, noble-metal-containing catalyst in liquid phase oxidation reactions This invention relates to the use of a supplemental promoter in conjunction with a noble-metal-containing catalyst comprising a carbon support in catalyzing liquid phase oxidation reactions, a process for making of an improved catalyst comprising such a supplemental... | 11/06/2007 |
| 7229942 | Supported catalyst and method for preparing the same The invention provides and a highly-dispersed supported catalyst that has a reduced average particle size of catalytic metal particles and is also supported by a porous support material. A method of preparing a supported catalyst that can reduce the average particle... | 06/12/2007 |
| 7208437 | Catalyst and method for its manufacture A catalyst is synthesized by a method in which a catalytic metal such as platinum or another noble metal is dispersed onto a support member. A transition metal macrocycle is also adsorbed onto the support, and the support is heat treated so as to at least partially ... | 04/24/2007 |
| 7193107 | Use of a supplemental promoter in conjunction with a carbon-supported, noble-metal-containing catalyst in liquid phase oxidation reactions This invention relates to the use of a promoter in conjunction with a noble-metal-containing catalyst comprising a carbon support in catalyzing liquid phase oxidation reactions. In a particularly preferred embodiment, the catalyst comprises a carbon support h... | 03/20/2007 |
| 7179936 | Process for recovering a crystalline product from solution An improved process for recovering a crystalline product (particularly an N-(phosphonomethyl)glycine product) from a solution comprising both a product subject to crystallization and undesired impurities is provided. ... | 02/20/2007 |
| 7145034 | Method for producing N-phosphonomethylglycine The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separati... | 12/05/2006 |
| 7129373 | Oxidation catalyst and process An oxidation catalyst is prepared by pyrolyzing a source of iron and a source of nitrogen on a carbon support. Preferably, a noble metal is deposited over the modified support which comprises iron and nitrogen bound to the carbon support. The catalyst is effective f... | 10/31/2006 |
| 7091376 | Method for preparing formylphosphonic acid An improved process for the manufacture of formylphosphonic acid derivatives is reported. An aminomethylphosphonic acid substrate is contacted with a reagent selected from the group consisting of water, an alcohol, a phenol compound, and mixtures thereof and an oxid... | 08/15/2006 |
| 7084298 | Method for producing n-phosphonomethyl iminodiacetic acid The present invention relates to a process for the preparation of N-phosphonomethyliminodiacetic acid by reacting an alkali metal salt of iminodiacetic acid with phosphorus trichloride in aqueous solution with formation of the hydrochloride of iminodiacetic acid, ph... | 08/01/2006 |
| 7071354 | Method for producing N-phosphonomethylglycine The present invention relates to a process for the recovery of N-phosphonomethylglycine from an aqueous mixture which contains N-phosphonomethylglycine, ammonium halides, and alkali metal or alkaline earth metal halides and optionally organic impurities in dissolved... | 07/04/2006 |
| 7067693 | Deeply reduced oxidation catalyst and its use in preparing N-(phosphonomethyl) glycine compounds This invention relates to an improved catalyst, comprising a carbon support having a noble metal at its surface, for use in catalyzing liquid phase oxidation reactions, especially in an acidic oxidative environment and in the presence of solvents, reactants, interme... | 06/27/2006 |
| 7064235 | Process for making iminodiacetic acid compounds from monoethanolamine substrates This invention is directed to a process for making an iminodiacetic acid compound from a monoethanolamine substrate having the formula: wherein R1 is hydrogen, hydrocarbyl, or substituted hydrocarbyl. ... | 06/20/2006 |
| 7060659 | Herbicide composition There is provided an essentially non-aqueous homogeneous liquid herbicide composition comprising: a) a lipophilic solvent soluble complex comprising the reaction product of: i) not in excess of about 35% by weight of one or more lipophobic herbicides having an acidi... | 06/13/2006 |
| 7056450 | Highly concentrated aqueous solutions of N,N-dialkyl-glycines and process for preparation thereof An aqueous high-concentration solution of N,N-dialkylglycine, economical, easy to handle, and useful for subsequent organic chemical reactions, is provided. Also is provided a process for production thereof. The aqueous high-concentration solution of N,N-dialkylglyc... | 06/06/2006 |
| 7015351 | Reaction systems for making N-(phosphonomethyl) glycine compounds This invention generally relates to liquid phase oxidation processes for making N-(phosphonomethyl)glycine (also known in the agricultural chemical industry as glyphosate) and related compounds. This invention, for example, particularly relates to processes wherein ... | 03/21/2006 |
| 6963009 | Use of a supplemental promoter in conjunction with a carbon-supported noble-metal-containing catalyst in liquid phase oxidation reactions This invention relates to the use of a supplemental promoter in conjunction with a noble-metal-containing catalyst comprising a carbon support in catalyzing liquid phase oxidation reactions. In a particularly preferred embodiment, a supplemental promoter (mos... | 11/08/2005 |
| 6956005 | Use of tellurium in carbon-supported, noble metal-containing catalysts for liquid phase oxidation reactions An improved catalyst comprising a noble metal and tellurium at the surface of a carbon support is provided. Also provided are novel methods for preparing such catalysts and novel processes for the use of such catalysts in liquid phase oxidation reactions, particular... | 10/18/2005 |
| 6927304 | De-oxygenation treatment for noble metal on carbon catalysts used in liquid phase oxidation reactions A treatment for de-oxygenating a noble metal on carbon catalyst used in liquid phase oxidation reactions which includes exposing the catalyst to a non-oxidizing environment. The de-oxygenation treatment improves catalyst performance and is particularly suited for no... | 08/09/2005 |
| 6921834 | Continuous process for preparing N-phosphonomethyl glycine In general the present invention relates to a continuous process for manufacturing (N-phosphonomethyl) glycine, glyphosate, by the catalyzed oxidation of N-phosphonomethyliminodiacetic acid. Glyphosate can be provided in high yield and in a cost efficient process by... | 07/26/2005 |
| 6894004 | Compounds, compositions, and methods of use for glyphosate salts of ether amines The present invention describes glyphosate salts of ether amines as compounds and compositions, including their methods of use. The compounds include glyphosate salts of the formula (I): Z-CH2—NH—CH2—POR1R2 (I), wher... | 05/17/2005 |
| 6867326 | Method of producing glyphosate or a salt thereof In a process for preparing N-phosphonomethylglycine or a salt thereof by bringing phosphonomethyliminodiacetic acid or a salt thereof into contact with at least one oxygen-containing oxidant in the presence of a heterogeneous catalyst, the heterogeneous catalyst com... | 03/15/2005 |
| 6864218 | Method of making phosphorus-containing compounds and products thereof A process for oxidizing a hydroxymethylphosphonic acid compound to produce a formylphosphonic acid compound is described. The oxidation reaction is carried out in the presence of an oxidant and a catalyst. For example, hydroxymethylphosphonic acid (HMPA) is oxidized... | 03/08/2005 |
| 6818450 | Use of infrared spectroscopy for on-line process control and endpoint detection The present invention is directed to an analytical method for measuring the concentration of an N-(phosphonomethyl)iminodiacetic acid (“NPMIDA”) substrate, an N-(phosphonomethyl)glycine product, formaldehyde, formic acid, N-methyl-N-(phosphonomethyl)glycine (“... | 11/16/2004 |
| 6794536 | Method for preparation of disodium pamidronate The invention provides a method of preparing anhydrous disodium pamidronate or an aqueous disodium pamidronate solution for pharmaceutical use. ... | 09/21/2004 |
| 6762317 | Method for preparing formylphosphonic acid An improved process for the manufacture of formylphosphonic acid derivatives is reported. An aminomethylphosphonic acid substrate is contacted with a reagent selected from the group consisting of water, an alcohol, a phenol compound, and mixtures thereof and an oxid... | 07/13/2004 |
| 6696602 | Method for the production of phosphonomethylglycine The present invention relates to a process for the preparation of phosphonomethylglycine, wherein N-phosphonomethyliminodiacetic acid N-oxide is brought into contact with a catalytically effective amount of thiocyanic acid or a salt thereof.... | 02/24/2004 |
| 6641741 | Removal and recovery of chloride from phosphonomethyliminodiacetic acid process brine Chloride is selectively isolated as NaCl from N-phosphonomethyliminodiacetic acid process wastes by evaporative crystallization of the caustic neutralized brine.... | 11/04/2003 |
| 6605568 | Process for making a downstream processable ammonium glyphosate paste A process is provided for preparing a downstream processable ammonium glyphosate paste, comprising mixing in a suitable vessel (i) particulate glyphosate acid, (ii) ammonia in an amount of about 0.8 to about 1.25 moles per mole of the glyphosate acid, and... | 08/12/2003 |
