Patent application number | Description | Published |
20110097679 | DEVICE FOR PERFORMING CHEMICAL AND/OR PHYSICAL REACTIONS BETWEEN A SOLID MATERIAL AND A GAS - The device according to the invention for performing chemical and/or physical reactions between a solid material and a gas, in particular for preheating, cooling and/or calcining fine-grained materials substantially comprises at least one helical and/or spiral line, in which a gas/solid material suspension is separated by centrifugal forces into a solid material flow and a gas flow and at least one separation chamber which is connected to the end of the helical and/or spiral line and which is connected to a gas line in order to direct the gas flow away or which is formed by a portion of the gas line, a solid material line for directing the solid material flow away being connected to the separation chamber. The helical and/or spiral line opens into the separation chamber tangentially at an angle of at least 30° relative to the horizontal and the cross-section of the separation chamber in the region of the opening is from 0.5 to 1.5 times as large as the cross-section of the helical and/or spiral line. | 04-28-2011 |
20110165031 | DEVICE FOR PERFORMING CHEMICAL AND/OR PHYSICAL REACTIONS BETWEEN A SOLID MATERIAL AND A GAS - The device according to the invention for performing chemical and/or physical reactions between a solid material and a gas, especially for preheating, cooling and/or calcining fine-grained materials has at least three stages arranged one above the other, each stage comprising the following components: a. a gas-solids suspension duct for conducting a gas-solids suspension, b. means for separating the delivered solid material from the delivered gas, c. a solids duct for discharging the separated solid material, d. and a gas duct for discharging the separated gas, the gas duct of one stage merging into the gas-solids suspension duct of the next-higher stage and the solids duct of one stage joining the gas-solids suspension duct of the next-lower stage. In addition, the junction of the solids duct and the gas-solids suspension duct of the third or a higher stage is provided below the highest point of the gas-solids suspension duct arranged two stages lower. | 07-07-2011 |
Patent application number | Description | Published |
20110171102 | PROCESS FOR THE PREPARATION OF ETHANEDINITRILE - The invention relates to a process for the preparation of ethanedinitrile, by reading hydrocyanic acid in the liquid phase with nitric acid in the presence of a cupric ion catalyst. | 07-14-2011 |
20110195012 | PROCESS FOR REMOVING HYDROGEN CYANIDE FROM ETHANEDINITRILE - Process for removing hydrogen cyanide from ethanedinitrile by contacting hydrogen cyanide-containing ethanedinitrile with an organic reagent under formation of a covalent bond. | 08-11-2011 |
20120022275 | PROCESS FOR THE PRODUCTION OF CARNITINE BY CYCLOADDITION - The invention relates to a method for the production of L-carnitine, wherein a chiral β-lactone carnitine precursor is obtained by a [2+2] cycloaddition of ketene with an aldehyde X—CH | 01-26-2012 |
20120022288 | PROCESS FOR THE PRODUCTION OF CARNITINE FROM BETA-LACTONES - The invention relates to a method for the production of L-carnitine, wherein a β-lactone, which is a 4-(halomethyl)oxetane-2-one, is converted into carnitine with trimethylamine (TMA), wherein the β-lactone is not subjected to a basic hydrolysis step before being contacted with the trimethylamine. The invention also relates to a carnitine having a unique impurity profile. | 01-26-2012 |
20130034885 | PROCESS FOR THE ENZYMATIC PRODUCTION OF CARNITINE FROM BETA-LACTONES - Subject of the invention is a process for the production of L-carnitine, wherein a β-lactone, which is a 4-(halomethyl)oxetane-2-one, is converted into L-carnitine, wherein the process comprises an enzymatic conversion of the β-lactone into (R)-4-halo-3-hydroxybutyric acid or (R)-4-halo-3-hydroxybutyric acid ester. | 02-07-2013 |
20140039217 | Process for the Production of 4-Chloroacetoacetyl Chloride, 4-Chloroacetoacetic Acid Esters, Amides and Imides - The invention relates to process for the continuous production of 4-chloroacetoacetyl chloride, comprising the steps of (a) feeding diketene and chlorine into a thin film reactor and (b) reacting the diketene and chlorine to obtain 4-chloroacetoacetyl chloride. The invention also relates to a process for the production of 4-chloroacetoaceticacid ester, 4-chloroacetoaceticacid amide or 4-chloroacetoaceticacid imide from 4-chloroacetoacetyl chloride obtained according to the inventive process. | 02-06-2014 |
Patent application number | Description | Published |
20090098498 | SYSTEM FOR PRODUCING CEMENT CLINKER - The system according to the invention for producing cement clinkers from raw cement mix is composed substantially of a pre-warmer for pre-warming the raw cement mix, a calcination device for pre-calcining the pre-warmed raw cement mix, a sintering kiln for firing the pre-calcined raw cement mix to form cement clinkers, and a cooler for cooling the fired cement clinker. Additionally provided between the cooler and the calcination device is a tertiary air line via which tertiary air is supplied to the calcination device. The calcination device is additionally traversed by the waste gases of the sintering kiln and has a calcining nozzle in its inlet region. Also provided are means for setting the cross section of the calcining nozzle, which means are formed by at least one element which is arranged in a rotatable or pivotable fashion in order to set the cross section and which is exposed to the waste gases of the sintering kiln. | 04-16-2009 |
20090305180 | PLANT AND METHOD FOR THE PRODUCTION OF CEMENT CLINKER - The invention relates to a plant and to a method for the production of cement clinker from cement raw meal, the cement raw meal being preheated in a preheating zone, precalcined in a calcining zone, completely burned in a sintering combustion zone and cooled in a cooling zone, solid fuels additionally being burned in an additional combustion region, a firing region being used in the additional combustion region, the solid fuel being introduced into the firing region where it forms a fuel bed over which a supplied oxygen-containing gas flows, the resulting combustion products being removed via a discharge opening and being used in the production of cement clinker. The fuel is supplied via a conveyor device arranged outside the firing region, in such a manner that it moves the fuel bed that is present in the direction towards the discharge opening. | 12-10-2009 |
20110294084 | SYSTEM FOR THERMALLY PROCESSING LUMPY SOLID MATERIAL - The system according to the invention for thermally processing lumpy solid material substantially comprises a preheating device, a furnace and a separation or classification device which is arranged therebetween and which has a coarse material outlet connected to the furnace and a fine material outlet. The furnace and the preheating device are connected to each other by means of a gas/solid material line which is arranged so as to be inclined relative to the vertical, the furnace exhaust gases being introduced at the end of the gas/solid material line at the furnace side and the preheated solid material being supplied at the end at the preheater side. The separation or classification device is connected to a bypass line which branches off from the gas/solid material line so that at least a partial amount of the preheated solid material can be branched off via the bypass line by means of gravitational force and can be supplied to the separation or classification device. | 12-01-2011 |