| Patent application number | Description | Published |
|---|
| 20080214880 | Process for Dehydrating Glycerol to Acrolein - The present invention relates to a process for manufacturing acrolein by gas-phase dehydration of glycerol in the presence of strongly acidic solid catalysts with a Hammett acidity H | 09-04-2008 |
| 20080319233 | Acrolein Preparation Method - The invention relates to a method for preparing acrolein from propylene, consisting of a first glycerol dehydration step preformed in the presence of a gas containing propylene and, more specifically, in the presence of the reaction gas originating from the propylene to acrolein oxidation step. The inventive method enables the use, in part, of renewable raw material, while increasing acrolein production. | 12-25-2008 |
| 20090018362 | ACRYLIC ACID PREPARATION METHOD - The invention relates to a method for preparing acrylic acid from propylene, comprising the oxidation of propylene to acrolein and a second step comprising the oxidation of acrolein to acrylic acid, including a glycerol dehydration step preformed in the presence of a gas containing propylene and, more specifically, in the presence of the reaction gas originating from the propylene to acrolein oxidation step. The inventive method enables the use, in part, of renewable raw material, while increasing acrylic acid production. | 01-15-2009 |
| 20090105507 | Process for Preparing Partial Oxidation Products of Lower Alcohols by Direct Oxidation of a Lower Alcohol and Catalysts for Use in that Process - The use of a complex oxide having the following composition (I). M0 | 04-23-2009 |
| 20100048850 | METHOD FOR THE SYNTHESIS OF ACRYLONITRILE FROM GLYCEROL - The invention relates to a novel way to synthesize acrylonitrile from a renewable raw material and more particularly relates to a method for producing acrylonitrile by the ammoxidation of glycerol in gaseous phase. The method can be implemented in a single step, or the glycerol can be previously submitted to a dehydration step. The acrylonitrile thus obtained meets the requirements of green chemistry. | 02-25-2010 |
| 20100099894 | Method for the Synthesis of Cyclic Acetals by the Reactive Extraction of a Polyol in a Concentrated Solution - A method for the synthesis of cyclic acetals comprises reacting at least one carbonyl-function compound selected from aldehydes, ketones, and/or linear acetals, on a polyol in a concentrated aqueous solution exceeding 20 wt % in a reactor containing an acidic catalyst. The carbonyl-function compound is selected so that the cyclic acetal obtained has a water solubility lower than 20000 mg/kg. During the catalytic reaction for the cyclic acetal synthesis, at least one portion of the organic phase containing the cyclic acetal is separated. The acidic catalysis is either homogeneous when using a water-soluble strong acid, or heterogeneous when using a solid acid such as a resin, a zeolite, or any appropriately acidified solid. The extractive reaction method can be used for obtaining high conversions and selectivity. | 04-22-2010 |
| 20100168453 | METHOD FOR THE SYNTHESIS OF OMEGA-AMINO-ALKANOIC ACIDS - The invention relates to a method for the synthesis of amino acids/esters of general formula NH | 07-01-2010 |
| 20100168471 | METHOD FOR PREPARING ACRYLIC ACID FROM GLYCEROL - The invention relates to a method for preparing acrylic acid from an aqueous glycerol solution, comprising a first step of dehydration of the glycerol to acrolein, carried out in the gas phase in the presence of a catalyst and under a pressure of between 1 and 5 bar, and a second step of oxidation of the acrolein to acrylic acid, in which an intermediate step is implemented, consisting in at least partly condensing the water and heavy by-products present in the stream issuing from the first dehydration step. This method serves to obtain high acrylic acid productivity and selectivity. | 07-01-2010 |
| 20100196973 | METHODS FOR THE SYNTHESIS OF FATTY DIACIDS BY THE METATHESIS OF UNSATURATED DIACIDS OBTAINED BY FERMENTATION OF NATURAL FATTY ACIDS - The invention relates to a method for the synthesis of diacids of general formula ROOC—(CH | 08-05-2010 |
| 20100203600 | METHOD FOR THE COPRODUCTION OF METHYL 7-OXOHEPTANOATE AND UNDECYLENIC ACID FROM RICINOLEIC ACID - The invention relates to a method for converting ricinoleic acid that comprises the following successive stages:
| 08-12-2010 |
| 20100204502 | PROCESS FOR MANUFACTURING ACROLEIN FROM GLYCEROL - The subject of the present invention is a process for preparing acrolein by dehydration of glycerol in the presence of a catalyst system based on iron phosphorous oxide containing, in addition, one or more elements chosen from alkali metals, alkaline-earth metals, AI, Si, B, Co, Cr, Ni, V, Zn, Zr, Sn, Sb, Ag, Cu, Nb, Mo, Y, Mn, Pt, Rh and the rare earths La, Ce, Sm. The process is preferably carried out in the gas phase in the presence of oxygen starting from aqueous solutions of glycerol. The process according to the invention makes it possible of obtain high acrolein selectivities. | 08-12-2010 |
| 20100216198 | METHOD FOR THE SYNTHESIS OF OMEGA-UNSATURATED FATTY ACIDS - The invention relates to a method for the synthesis of short-chain ω-unsaturated fatty acids of general formula CH | 08-26-2010 |
| 20100230635 | Glycerol Vaporization Method - The subject matter of the present invention relates to a vaporization method of aqueous glycerol solutions in a fluidized bed containing an inert solid. The invention provides a method for vaporizing, in a single step, an aqueous glycerol solution and simultaneously eliminating the impurities present in this solution or generated during the evaporation. | 09-16-2010 |
| 20100274038 | METHOD FOR SYNTHESIS OF ACROLEIN FROM GLYCEROL - The invention provides a technology for producing acrolein from glycerol while maintaining high reagent partial pressures, which leads to higher yield. The invention more particularly relates to a method for producing acrolein from glycerol that comprises the intermediate step of forming glycerol and acrolein cyclic acetals. | 10-28-2010 |
| 20100305354 | METHOD FOR THE SYNTHESIS OF DIACIDS OR DIESTERS FROM NATURAL FATTY ACIDS AND/OR ESTERS - The invention relates to a process for the synthesis of diacids or diesters of general formula ROOC—(CH | 12-02-2010 |
| 20110002836 | Method for Manufacturing Nitric Acid - The present invention relates to a method for manufacturing nitric acid wherein a gaseous mixture, including air and ammonia, is transported on a catalyst including platinum to carry out catalytic oxidation of the ammonia, and is characterized in that a sulfurated component is added to the gaseous mixture. | 01-06-2011 |
| 20110028760 | METHOD FOR THE REACTIVE VAPORIZATION OF GLYCEROL - The subject of the present invention is a method for the reactive vaporization of aqueous solutions of glycerol in a fluidized bed containing a reactive solid. The method of the invention makes it possible to simultaneously vaporize an aqueous solution of glycerol, to remove the impurities that are present in this solution or that are generated during the evaporation, and to carry out the dehydration reaction of the glycerol to acrolein and/or the oxydehydration reaction of the glycerol to acrylic acid. | 02-03-2011 |
| 20110071322 | METHOD FOR THE SYNTHESIS OF DIALKOXY ALKANES BY MEANS OF THE SELECTIVE OXIDATION OF ALCOHOLS - The invention relates to a method for the synthesis of dialkoxyalkanes by means of the partial selective oxidation of a light alcohol. According to said method, the light alcohol is oxidised in the presence of molecular oxygen or a gas containing molecular oxygen, and a solid oxidation catalyst based on at least one metal in a reactive medium comprising a gaseous phase containing an acid compound according to the Pearson classification, having a pKa of less than 6.3 in solution in water. The reaction is carried out in a vapour or in a liquid phase. | 03-24-2011 |
| 20110082319 | Method for producing acrolein by means of dehydration of glycerol - The invention relates to a method for the synthesis of acrolein by means of dehydration of the glycerol in the presence of a solid acid catalyst having a Hammett acidity of less than +2, such as sulfated zirconium oxides, phosphated zirconium oxides, tungstated zirconium oxides, silicated zirconium oxides, sulfated tin or titanium oxides, phosphated aluminas or silicas, doped iron phosphates, and phosphotungstic or silicotungstic acid salts placed in a reactive medium comprising a gaseous phase containing between 1 and 3000 ppm of an acid compound according to the Pearson classification, selected, for example, from SO3, SO2, and NO2, the dehydration reaction being carried out either in a gaseous phase or in a liquid phase. | 04-07-2011 |
| 20110104044 | DIRECT SYNTHESIS OF AQUEOUS HYDROGEN PEROXIDE SOLUTION AT THE SITE OF A PAPER MILL - The invention relates to a plant for producing hydrogen peroxide by direct synthesis (i.e. hydrogen reacts with oxygen in the presence of a catalyst), which is on-site at a paper mill. The invention relates to a method for manufacturing hydrogen peroxide by direct synthesis from hydrogen originating from the recovery of the spent liquor during the manufacture of wood pulp or cellulose pulp. | 05-05-2011 |
| 20110104097 | TOPICAL COMPOSITIONS FOR THE PRESERVATION OF A HUMAN OR ANIMAL BODY - The present invention relates to a novel composition, having a non-therapeutic purpose, that contains at least one POM (PolyOxyMethylene dialkyl ether) and/or at least on dialdehyde acetal, and also at least one biocidal agent and optionally at least one pro-penetrating agent. It also relates to the topical use of this composition for preserving and/or embalming a human or animal body. | 05-05-2011 |
| 20110104764 | METHOD FOR SYNTHESISING OMEGA-AMINO-ALKANOIC ACIDS OR THE ESTERS THEREOF FROM NATURAL FATTY ACIDS - The invention relates to a method for synthesizing ω-amino-alkanoic acids or the esters thereof from mono-unsaturated natural fatty acids comprising at least one step of forming the unsaturated diacid corresponding to the original fatty acid. | 05-05-2011 |
| 20110105774 | METHOD FOR SYNTHESISING 9-AMINONONANOIC ACID OR THE ESTERS THEREOF FROM NATURAL UNSATURATED FATTY ACIDS - The invention relates to a method for synthesizing 9-aminononanoic acid or the esters thereof from natural unsaturated fatty acids, comprising at least one step of metathesis of the natural fatty acid and an oxidation step by oxidative cleaving. Said synthetic method uses widely available renewable starting materials and hence economical. | 05-05-2011 |
| 20110118486 | USE OF PARTICLE FILTERS FOR LIMITING CATALYST DEACTIVATION - The invention relates to the use of monoliths as particle filters for limiting the deactivation of catalysts during catalytic reactions in multi-tubular reactors. The invention is particularly well-suited for catalytic oxidation reactions in the gaseous phase. The invention also relates to multi-tubular reactors including monoliths as particle filters. | 05-19-2011 |
| 20110118507 | METHOD FOR PRODUCING DIALKOXY ALKANES BY PARTIAL OXIDATION OF LOWER ALCOHOLS IN THE PRESENCE OF A CATALYST BASED ON MOLYBDENUM AND IRON - The invention relates to a method for producing alkoxy alkanes by direct partial oxidation of a lower alcohol with a catalyst based upon mixed oxide containing molybdenum and at least one other metal selected from the metals that can assume a trivalent oxidation state such as Fe, Bi, Al, Cr, In, La, Sb, and/or a metal selected from Ni, Co, Cu, V, W, Ti, Ta, Nb, Mn, Sn, P. | 05-19-2011 |
| 20110124913 | METHOD FOR PRODUCING BIORESOURCED PROPIONIC ACID FROM GLYCEROL - The invention relates to a method for producing bioresourced propionic acid from glycerol. The invention also relates to a composition comprising more than 85 mass % of bioresourced propionic acid, and to the use of the propionic acid obtained from the method as a solvent, as a food preservative, for producing herbicide or for preparing vinyl propionate. | 05-26-2011 |
| 20110136954 | BIOSOURCED ACROLEIN POLYMER, METHOD FOR OBTAINING SAME, AND USES THEREOF - The present invention relates to an acrolein polymer containing a carbon biosourced according to the ASTM D6866-06 standard, and to the preparation method thereof including a first step for dehydrating glycerol from a glycerol aqueous solution in the presence of an acid catalyst, followed by a polymerization of the obtained substance in the presence of an ionic catalyst or a free radical initiator. The polymer according to the invention has numerous uses in the fields of animal health, antibiotics, disinfection and sterilization, cosmetics, drilling sludge, paints and inks, and the paper and textile industries, and responds to certain sustainable development concerns. | 06-09-2011 |
| 20110150743 | HYDROCYANIC ACID CONTAINING BIORESOURCE CARBON - The invention relates to a hydrocyanic acid containing bioresource carbon, and to a method for producing a raw material mainly containing the same by reacting ammonia with methane or methanol optionally in the presence of air and/or oxygen, characterized in that at least one of the reagents selected from ammonia, methane and methanol is obtained from a biomass. The invention also relates to the uses of the raw material for producing acetone cyanohydrin, adiponitrile, methionine or methionine hydroxyl-analog, and sodium cyanide. | 06-23-2011 |
| 20110160419 | PRODUCTION OF VINYL PROPIONATE FROM RENEWABLE MATERIALS, VINYL PROPIONATE OBTAINED, AND USES THEREOF - The invention relates to vinyl propionate in which at least part of the carbon atoms are from a renewable source. The invention also relates to a method for producing vinyl propionate, and to the copolymers, compositions and uses of vinyl propionate. | 06-30-2011 |
| 20110160491 | PROCESS FOR MANUFACTURING ACROLEIN OR ACRYLIC ACID FROM GLYCERIN - The subject of the present invention is a process for preparing acrolein by dehydration of glycerin, characterized in that the dehydration is carried out in the presence of a catalyst comprising mainly a compound in which protons in a heteropolyacid are exchanged at least partially with at least one cation selected from elements belonging to Group 1 to Group 16 of the Periodic Table of Elements. The process according to the invention permits to obtain acrolein at higher yield. | 06-30-2011 |
