Patent application number | Description | Published |
20100145109 | METHOD FOR PREPARING DINITROTOLUENE - The present invention relates to a process for preparing dinitrotoluene. The process of the invention for preparing dinitrotoluene from mononitrotoluene, which comprises carrying out a mononitrotoluene nitration reaction using a nitrating mixture comprising nitric acid, sulphuric acid and water resulting in a two-phase medium and separating the organic and aqueous phases of said two-phase medium, is characterized in that the mononitrotoluene nitration is carried out using a nitrating mixture comprising at most 10% by weight of water resulting in a two-phase medium, in that the organic and aqueous phases of said two-phase medium are separated, and in that the aqueous phase derived from the separating operation is recycled, at the end of the mononitrotoluene nitration reaction and before the separation of the organic and aqueous phases, such that the weight ratio of the aqueous phase to the organic phase is at least equal to 1.2. | 06-10-2010 |
20100292121 | DICARBOXYLIC ACID DIESTERS, NOTABLY THOSE PREPARED FROM FUSEL OILS - Novel dicarboxylic acid diesters and admixture thereof have the formula (I): | 11-18-2010 |
20110021845 | PREPARATION OF ALCOHOLS FROM ALDEHYDES - Alcohols are prepared from aldehydes employing a bifunctional catalyst; the aldehydes are first condensed and the products of condensation thereof are then converted into alcohols by hydrogenation. | 01-27-2011 |
20110034693 | PREPARATION OF METHYLPENTAMETHYLENEDIAMINE AND METHYLPIPERIDINE - Methyl-2-pentamethylenediamine and methyl-3-piperidine are prepared by hydrogenation of methylglutaronitrile in the presence of a catalyst including cobalt, chromium, and nickel, especially a catalyst based on Raney cobalt doped with nickel and chromium. | 02-10-2011 |
20110082310 | PRODUCTION OF NITRILE COMPOUNDS - Organic compounds containing at least one site of ethylenic unsaturation are catalytically hydrocyanated and the medium of hydrocyanation is separated into desired linear organic compounds containing at least one nitrile function, e.g., 3-pentenenitrile, and undesired nitrile by-products, e.g., methylglutaronitrile, and the undesired nitrile by-products are hydrodenitrogenated into ammonia and at least one hydrocarbon compound under an absolute hydrogen pressure ranging from 0.1 to 10 MPa at a temperature ranging from 200° to 500° C. and in the presence of a hydrodenitrogenation catalyst. | 04-07-2011 |
20110112202 | HYDRODENITROGENATION OF HYDROCARBON COMPOUNDS CONTAINING NITRILE OR AMINE FUNCTIONS - Hydrocarbon compounds containing at least one nitrile or amine functional group, e.g., methylglutaronitrile or ortho-toluenediamine, are converted, via hydrodenitrogenation, into ammonia, hydrogen, carbon monoxide and hydrocarbon compounds, notably into hydrocarbon compounds having a low number of carbon atoms, such as methane, or into ammonia. | 05-12-2011 |
20110288324 | METHOD FOR MANUFACTURING COMPOUNDS INCLUDING NITRILE FUNCTIONS - A process for the preparation of compounds containing nitrile functions and, more specifically, compounds containing two nitrile functions, such as succinonitrile and adiponitrile, is described. A process for preparing dintrile compounds obtained by reacting ammonia with an aqueous solution of a dicarboxyl compound in the presence of a silicon orthophosphate catalyst is also described. | 11-24-2011 |
20110313204 | CATALYTIC METHOD OF MANUFACTURE OF COMPOUNDS OF THE DIOL TYPE - The invention relates to a catalytic method for the industrial production of a diol compound, such as 2-methyl-2-4-pentanediol, also called 2,4-hexylene glycol (HGL), from a β-hydroxy carbonyl compound, Formula (I), in particular diacetone alcohol (DAA). | 12-22-2011 |
20120220003 | METHOD FOR CONTINUOUSLY SEPARATING ORGANIC MATERIALS OF INTEREST FROM FERMENTATION - A method for continuously separating organic materials of interest from fermentation, in particular lactic or alcoholic fermentation, by flash evaporation is described. The method can make it possible to avoid inhibiting the fermentation reaction and to obtain high yields and productivity. | 08-30-2012 |
20130005810 | ORGANIC UNCOUPLING AGENTS - The present invention relates to a method for controlling the growth of bacterial biomass in an aqueous system, including adding to the aqueous system or contacting the aqueous system, with an efficient amount of an uncoupling agent selected from vanillin, pentaerythritol and a betaine of general formula (1): (R) | 01-03-2013 |
20130204001 | PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS - The production of compounds comprising nitrile functions and of cyclic imide compounds is described. Further described, is the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, optionally of natural and renewable origin, and from a mixture N of dinitriles comprising 2-methylglutaronitrile (MGN), 2-ethylsuccinonitrile (ESN) and adiponitrile (AdN). | 08-08-2013 |
20130204015 | PROCESS FOR PREPARING A LACTONE - A method for preparing a lactone is described. Also described, is the preparation of butyrolactone, valerolactone and caprolactone. The method for preparing a lactone can include a reduction of a dicarboxylic acid using hydrogen, in a gaseous phase and in the presence of an effective amount of a catalyst including an active ruthenium-tin phase including at least one Ru | 08-08-2013 |
20130204046 | HYDRIDE TRANSFER PROCESS FOR KETONE PREPARATION - A hydride transfer process within a reaction between an alcohol and a ketone and in the presence of a heterogeneous catalyst is described. The process can transfer a hydride from an alcohol to a ketone, thus enabling reduction of the ketone and oxidation of the alcohol. Further described, is a process for the simultaneous preparation of cyclohexanone and isopropanol enabling an optimized industrial operation. A mixture of compounds useful for implementing the process and comprising two different ketones and two different alcohols is also described. | 08-08-2013 |
20130327988 | PROCESS FOR THE PREPARATION OF IMIDES AND DERIVATIVES THEREOF AND USES - A process for the preparation of imides and also the uses thereof, especially as intermediates for the preparation of solvents, in particular of diester solvents, is described. Further described is a process for preparing cyclic imides and derivatives thereof, especially the corresponding carboxylic acids. | 12-12-2013 |
20140171663 | PROCESS FOR PRODUCING COMPOUNDS COMPRISING NITRILE FUNCTIONS - The present invention relates to the production of compounds comprising nitrile functions and of cyclic imide compounds. It relates more particularly to the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, advantageously of natural and renewable origin, and from 2-methylglutaronitrile (MGN) or a mixture N of dinitriles comprising 2-methylglutaronitrile (MGN), 2-ethylsuccinonitrile (ESN) and adiponitrile (AdN). | 06-19-2014 |
20140235902 | Method for preparing a mixture of alcohols - A method for preparing a mixture (M) comprising at least an alcohol (Aj), said method comprising the following steps: i) a step in which at least an alcohol (Ai) in gaseous state is oligomerized, thereby producing a mixture (A); ii) a step in which the mixture (A) is condensed to a gaseous stream and to a liquid stream corresponding to a condensed mixture (A); and iii) a step in which the condensed mixture (A) is hydrogenated in the liquid state. | 08-21-2014 |
20140316168 | Process for preparing a mixture of alcohols - A process for preparing a mixture (M) comprising at least one alcohol (Aj), wherein said process comprises a reaction for oligomerization in the gas phase of at least one alcohol (Ai), carried out in the presence of a solid catalyst doped with one or more metals, at a temperature greater than or equal to 50° C. and strictly below 200° C. The oligomerization reaction is carried out in the absence of hydrogen. | 10-23-2014 |
20140343304 | METHOD FOR MANUFACTURING COMPOUNDS INCLUDING NITRILE FUNCTIONS - The present invention relates to the manufacture of compounds of general formula I or III including nitrile functions. Specifically, the invention relates to the manufacture of compounds including nitrile functions from compounds which include carboxyl functions and which are advantageously of natural and renewable origin. | 11-20-2014 |
20140350265 | Method for producing compounds comprising nitrile functions - The present invention concerns the production of compounds comprising nitrite functions and cyclic imide compounds. More specifically, the invention relates to the production of compounds comprising nitrile functions from compounds comprising carboxylic functions, advantageously of natural and renewable origin, and from methyl-2 glutaronitrile (MGN) or a mixture N of dinitriles comprising methyl-2 glutaronitrile (MGN), ethyl-2 succinonitrile (ESN) and adiponitrile (AdN). | 11-27-2014 |
20140364351 | Process for preparing a mixture of alcohols - A method for preparing a mixture (M) including at least one alcohol (Aj), wherein said method includes a gas-phase oligomerization reaction of at least one alcohol (Ai) with a solid acid-base catalyst doped with one or more metals, said reaction being carried out in the presence of hydrogen and at a temperature of no less than 50° C. and strictly less than 200° C. | 12-11-2014 |
20150051401 | PROCESS FOR PREPARING LACTAMS - The present invention relates to a method for preparing lactams using heterogeneous catalysis by hydrogenating at least one compound of the following formula (I), where A is a radical of the following formula (I′) or (II′): —CH(R | 02-19-2015 |
20150087803 | Process for preparing poly(N-acylamides) and poly(N-acylamides) as obtained - The present invention relates to a process for preparing a poly(N-acylamide) by reaction between: —at least one compound of the following formula (I): X—R | 03-26-2015 |