Patent application number | Description | Published |
20100022019 | METHOD OF MONITORING ADSORBENT BED BREAKTHROUGH IN A PROCESS FOR PRODUCING ALKYL ESTERS FROM VEGETABLE OR ANIMAL OIL AND FROM AN ALIPHATIC MONOALCOHOL - A method of monitoring breakthrough of an adsorbent bed consisting for example of ion-exchange resins, used during a stage of purification of an ester stream containing glycerin, obtained for example in a vegetable or animal oil and aliphatic monoalcohol transesterification process, permits the instantaneous detection of the presence of glycerol (glycerin) in the ester stream by arranging a turbidimeter at the adsorbent bed outlet. | 01-28-2010 |
20110071333 | PROCESS FOR NEUTRALIZATION OF A CATIONIC ZEOLITE - The invention relates to a process for neutralization of a cationic zeolite that is at least partially exchanged with one or more monovalent and/or multivalent cations. The neutralization process comprises at least the stages for dissolution of a basic salt in an anhydrous organic solvent, degassing this solution by bubbling a dry inert gas, suspending the zeolite in this solution under dry inert gas, filtering and washing the solid by an anhydrous organic solvent, and calcination in the presence of oxygen and under a dry gaseous stream. The invention also relates to the use of neutralized zeolites for the separation or the purification of hydrocarbon feedstocks. | 03-24-2011 |
20110288359 | PROCESS FOR PREPARATION OF A CATIONIC ZEOLITE BY ION EXCHANGE - The invention relates to a process for preparation of a cationic zeolite that is at least partially exchanged with one or more monovalent and/or multivalent cations. The process comprises at least the stages for separate activation of a zeolite that is to be exchanged and an anhydrous salt under a dry, inert gaseous stream, dissolution of the anhydrous salt in an anhydrous organic solvent, ion exchange under dry inert atmosphere, filtering and washing with an anhydrous organic solvent, and calcination in the presence of oxygen and under a dry gaseous stream. The invention also relates to the use of prepared zeolites for the separation or the purification of hydrocarbon feedstocks. | 11-24-2011 |
20130319234 | NOVEL IM-21 ORGANIC-INORGANIC HYBRID SOLID AND PROCESS FOR PREPARING SAME - A novel crystalline hybrid solid with a mixed organic-inorganic matrix is described which has a three-dimensional structure containing an inorganic framework with metallic centres based on zinc connected together via deprotonated organic ligands constituted by the entity —O | 12-05-2013 |
20130341564 | CAPTURE MASS COMPOSED OF ELEMENTAL SULPHUR DEPOSITED ON A POROUS SUPPORT FOR CAPTURING HEAVY METALS - The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a dry or moist gaseous effluent ( | 12-26-2013 |
20140175334 | POLYMETALLIC CAPTURE MASS FOR CAPTURING HEAVY METALS - The invention concerns a capture mass for capturing heavy metals in a liquid or gaseous effluent, comprising a porous solid support, copper sulphide and at least one second metal sulphide the metal of which is selected from the group constituted by chromium, manganese, iron, cobalt and nickel, and in which the ratio of the percentage by weight of the metal or metals other than copper to the percentage by weight of copper is in the range 0.01 to 2. The invention also concerns a process for preparing said capture mass and a process for capturing heavy metals in a gaseous or liquid effluent, in which said effluent is brought into contact with said capture mass. | 06-26-2014 |
20140308189 | SHAPING CAPTURE MASSES FOR THE PURIFICATION OF A LIQUID OR GAS FEED CONTAINING HEAVY METALS - The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a gaseous or liquid effluent by means of a fixed bed process using an adsorbent in the form of monolithic or supported extrudates, said extrudates being characterized by a length h and a section comprising at least three lobes. The adsorbent is composed of at least one active phase based on sulphur in the elemental form or in the form of a metallic sulphide. | 10-16-2014 |
20150034561 | PERFORMANCE TRAPPING MASS AND USE THEREOF IN HEAVY METAL TRAPPING - The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a gaseous or liquid effluent by means of a capture mass comprising a support essentially based on alumina obtained by the gel method and at least one element selected from the group constituted by copper, molybdenum, tungsten, iron, nickel and cobalt. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas, natural gas, gas phase condensates and liquid hydrocarbon feeds. | 02-05-2015 |