Matches 1 - 50 out of 69 1 2 >


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US20110015458 CONVERSION OF HYDROGEN BROMIDE TO ELEMENTAL BROMINE  
A method is provided for converting hydrogen bromide to elemental bromine. A portion of an initial hydrogen bromide-rich gas is thermally oxidized at a thermal oxidation temperature to produce a...
US20110150749 METHOD FOR PRODUCING CHLORINE AND CATALYST  
A method for producing chlorine by oxidizing hydrogen chloride with oxygen in the presence of a catalyst, wherein the catalyst satisfies the following conditions (i) and (ii): (i) the BET specific...
US20120148478 PROCESS FOR THE PREPARATION OF CHLORINE BY GAS PHASE OXIDATION ON NANOSTRUCTURED SUPPORTED RUTHENIUM CATALYSTS  
The present invention relates to a process for the preparation of chlorine by gas phase oxidation using a supported catalyst based on ruthenium, characterised in that the catalyst support has a...
US20120076719 METHOD FOR ACTIVATING CATALYST FOR CHLORINE PRODUCTION AND METHOD FOR PRODUCING CHLORINE  
A method for activating a catalyst for chlorine production used in a reaction for oxidizing hydrogen chloride with oxygen, including the step of bringing a catalyst for chlorine production having...
US20130216470 CATALYST AND METHOD FOR THE PRODUCTION OF CHLORINE BY GAS PHASE OXIDATION  
The present invention relates to a catalyst for preparation of chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, in which the catalyst comprises calcined tin dioxide as a...
US20100015034 PROCESSES FOR OXIDIZING HYDROGEN BROMIDE TO PRODUCE ELEMENTAL BROMINE  
Processes are provided for catalytic oxidation of bromide to bromine by use of oxygen at temperatures of at least about 315° C. in the presence of a cerium-containing compound, such as a cerium...
US20120027665 CATALYST COMPRISING RUTHENIUM AND SILVER AND/OR CALCIUM FOR THE OXIDATION OF HYDROGEN CHLORIDE  
Catalyst comprising ruthenium on a support for the catalytic oxidation of hydrogen chloride by means of oxygen to form chlorine, wherein the catalyst comprises from 0.01 to 10% by weight of silver...
US20120128575 METHOD FOR ACTIVATING CATALYST FOR CHLORINE PRODUCTION  
A catalyst having decreased activity is subjected to a contact treatment with a reducing gas containing carbon monoxide and/or hydrogen. Also, the catalyst can be effectively activated by being...
US20120009117 CHLORINE PRODUCTION CATALYST AND CHLORINE PRODUCTION PROCESS USING THE CATALYST  
The invention provides a chlorine production catalyst that shows excellent reaction activity in the oxidation reaction of hydrogen chloride with oxygen into chlorine, is inexpensive and can be...
US20120045386 URANIUM CATALYST ON A SUBSTRATE HAVING A SPECIFIC PORE SIZE DISTRIBUTION, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF  
The present invention relates to a novel uranium catalyst on a support of particular pore size distribution, to a process for preparation thereof, and to the use thereof in the course of processes...
US20140335012 PROCESS FOR PRODUCING SUPPORTED RUTHENIUM ON SILICA MODIFIED TITANIA AND PROCESS FOR PRODUCING CHLORINE  
An object of the invention is to provide a process for producing a supported ruthenium oxide in which silica can be efficiently supported on a titania carrier and a supported ruthenium oxide...
US20070274900 PROCESSES FOR OBTAINING CHLORINE FROM MIXTURES OF CHLORINE, WATER, HYDROGEN CHLORIDE AND OXYGEN, AND INCORPORATION OF SUCH PROCESSES INTO ISOCYANATE PRODUCTION PROCESSES  
Processes comprising: (a) providing an initial gas mixture comprising chlorine, water, hydrogen chloride and oxygen; (b) cooling the initial gas mixture to form condensed hydrochloric acid and an...
US20140205533 PROCESS FOR THE PRODUCTION OF CHLORINE USING A CERIUM OXIDE CATALYST IN AN ADIABATIC REACTION CASCADE  
A process for the production of chlorine by thermo-catalytic gas phase oxidation of hydrogen chloride and oxygen is described, the process comprising at least (1) a cerium oxide catalyst and (2)...
US20100092373 Processes for Removing Carbon Monoxide from a Crude HCl Gas, and HCl Oxidation Processes Using Purified HCl Gas Obtained Thereby  
The present invention relates to a process for removing gases comprising carbon monoxide from a crude HCl gas which comprises at least carbon monoxide with or without nitrogen, consisting at least...
US20110243833 METHOD FOR PRODUCING CHLORINE  
An object of the present invention is to provide a novel method for producing chlorine with improved efficiency, which can remove impurities other than hydrogen chloride contained in a raw...
US20110274613 PROCESS FOR REGENERATING A CATALYST COMPRISING RUTHENIUM OXIDE FOR THE OXIDATION OF HYDROGEN CHLORIDE  
The invention relates to a process for regenerating a hydrogen chloride oxidation catalyst comprising ruthenium oxide on a support material, which comprises the steps a) reduction of the catalyst...
US20120213692 DISTILLATION PROCESS FOR SEPARATING CHLORINE FROM GAS STREAMS COMPRISING OXYGEN AND CHLORINE  
The invention relates to a process for separating chlorine from a gas stream I comprising oxygen and chlorine, in which the gas stream I is fed into a lower part of a column K1 and a separately...
US20110158897 PROCESS FOR PRODUCING CHLORINE  
There is disclosed a process for producing chlorine by feeding hydrogen chloride and oxygen into catalyst beds which are formed in the reaction tubes of a fixed-bed multitubular reactor and which...
US20100086473 Process for Producing Chlorine from HCL  
A process is described for the production of chlorine by a catalysed gas-phase oxidation of hydrogen chloride with an oxygen-containing gas stream.
US20090274612 PROCESS FOR PRODUCING SUPPORTED RUTHENIUM OXIDE AND PROCESS FOR PRODUCING CHLORINE  
The present invention provides a process for producing supported ruthenium oxide comprising a step of supporting a ruthenium compound on a carrier and then calcining it in an oxygen-containing gas...
US20110014114 MECHANICALLY STABLE CATALYST BASED ON ALPHA-ALUMINA  
A catalyst for gas-phase reactions which has high mechanical stability and comprises one or more active metals on a support comprising aluminum oxide as support material, wherein the aluminum...
US20120087855 PROCESS FOR THE OXIDATION OF HYDROGEN CHLORIDE OVER A CATALYST HAVING A LOW SURFACE ROUGHNESS  
The invention relates to a process for the catalytic oxidation of hydrogen chloride by means of oxygen to form chlorine in a fluidized-bed process in the presence of a catalyst comprising...
US20080260619 PROCESSES FOR THE OXIDATION OF HYDROGEN CHLORIDE  
A process for carrying out an optionally catalyst-assisted hydrogen chloride oxidation process by means of oxygen is described. The process comprises single- or multi-stage cooling of the process...
US20110268649 CATALYST COMPRISING RUTHENIUM AND NICKEL FOR THE OXIDATION OF HYDROGEN CHLORIDE  
Catalyst for gas-phase reactions which has a high mechanical stability and comprises one or more active metals on a support comprising aluminum oxide as support material, wherein the aluminum...
US20140241976 PROCESS FOR THE PRODUCTION OF CHLORINE USING A CERIUM OXIDE CATALYST IN AN ISOTHERMIC REACTOR  
A process for the production of chlorine by thermo-catalytic gas phase oxidation of hydrogen chloride gas with oxygen, in the presence of a catalyst, and separation of the chlorine from the...
US20100284872 SYSTEMS AND METHODS FOR REDUCING MERCURY EMISSION  
Described herein are methods for decreasing the amount of mercury in a flue gas that contains mercury through the use of a molecular halogen. Also described are chemical processes for carrying out...
US20100183498 THERMALLY STABLE CATALYST FOR HYDROGEN CHLORIDE GAS PHASE OXIDATION  
The present invention relates to a catalyst for oxidation reactions which comprises at least one constituent active in the catalysis of hydrogen chloride oxidation and support therefor,...
US20100068126 PROCESS FOR PRODUCING RUTHENIUM OXIDE-SUPPORTED MATERIAL AND PROCESS FOR PRODUCING CHLORINE  
There are disclosed a process for producing a ruthenium oxide-supported material, characterized in that a ruthenium compound is supported on a titania carrier in which silica is supported on...
US20100010256 PROCESSES FOR HYDROGEN CHLORIDE OXIDATION USING OXYGEN  
Processes which include: (a) providing a gas phase comprising hydrogen chloride; (b) oxidizing the hydrogen chloride in a reactor to form a product gas comprising chlorine, unreacted hydrogen...
US20120134913 METHOD FOR PRODUCING CHLORINE BY GAS PHASE OXIDATION OF HYDROGEN CHLORIDE IN A FLUIDIZED-BED REACTOR  
A process for preparing chlorine by gas-phase oxidation of hydrogen chloride over a heterogeneous, particulate catalyst in a fluidized-bed reactor to give a product gas mixture which is freed of...
US20110256050 METHOD FOR PRODUCING CHLORINE  
An object of the present invention is to provide a novel method for producing chlorine, by which it is possible to remove impurities contained with hydrogen chloride in a raw material gas and...
US20130177494 CATALYST AND METHOD FOR THE PRODUCTION OF CHLORINE BY GAS PHASE OXIDATION  
The present invention relates to a catalyst for preparation of chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, in which the catalyst comprises at least tin dioxide as a...
US20110189079 PROCESS FOR PRODUCING CHLORINE  
Disclosed is a process for producing chlorine, which makes it possible to successfully continue an oxidation reaction, even if sulfur component-containing hydrogen chloride is used. This process...
US20140248208 CATALYST AND METHOD FOR PRODUCING CHLORINE BY MEANS OF A GAS-PHASE OXIDATION  
A catalyst material for producing chlorine by the catalytic gas-phase oxidation of hydrogen chloride, wherein the catalyst comprises oxide compounds of cerium as active component components and...
US20110182801 MULTI-STAGE METHOD FOR THE PRODUCTION OF CHLORINE  
The present invention relates to a multistage process for preparing chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, in which the conversion is performed over at least...
US20120213693 USE OF LIQUID HYDROGEN CHLORIDE AS REFRIGERANT IN PROCESSES FOR PREPARING CHLORINE  
This invention relates to a process for preparing chlorine from HCl and a method of using liquid HCl to cool and optionally liquefy chlorine in the process. The process involves introducing at...
US20070269365 PROCESSES FOR THE PREPARATION OF ISOCYANATES  
Processes are described which comprise: (a) reacting chlorine with carbon monoxide to form phosgene; (b) reacting the phosgene with at least one organic amine to form at least one isocyanate and...
US20100183499 METHOD FOR ACTIVATING CATALYST FOR CHLORINE PRODUCTION  
A catalyst having decreased activity is subjected to a contact treatment with a reducing gas containing carbon monoxide and/or hydrogen. Also, the catalyst can be effectively activated by being...
US20090068087 HYDROGEN CHLORIDE OXIDATION REACTION APPARATUS AND HYDROGEN CHLORIDE OXIDATION REACTION METHOD  
Provided is a hydrogen chloride oxidation reaction apparatus for producing chlorine by oxidizing hydrogen chloride through a contact gas phase reaction in the presence of a catalyst by using...
US20110318259 PROCESS FOR PREPARING CHLORINE  
A process for preparing chlorine by oxidation of hydrogen chloride in the presence of a heterogeneous particulate catalyst by the Deacon process in a fluidized-bed reactor (1), in which the heat...
US20090304572 METHOD FOR THE PRODUCTION OF CHLORINE  
Process for preparing chlorine from hydrogen chloride, which comprises the steps: a) feeding of a stream a1 comprising hydrogen chloride and of a stream a2 comprising oxygen into an oxidation zone...
US20080085235 PROCESSES FOR OXIDATION OF BROMIDES TO PRODUCE BROMINE AND CATALYSTS USEFUL THEREIN  
Methods are provided for producing bromine wherein an aqueous solution is formed from at least a bromide source, an oxidant, and a catalyst comprising a Group 1 cation and an oxide of a transition...
US20060140849 Catalyst for the catalytic oxidation of hydrogen chloride  
The invention relates to a catalyst for the catalytic oxidation of hydrogen chloride, comprising on a support a) from 0.001 to 30% by weight of gold, b) from 0 to 3% by weight of one or more...
US20120093711 PROCESS FOR PREPARING CHLORINE FROM HCI  
Process for preparing chlorine by oxidation of hydrogen chloride by means of oxygen in the presence of a particulate catalyst in a fluidized-bed reactor, where the heat of reaction of the...
US20060099138 Method for producing chlorine from hydrochloric from hydrochloric aid  
Process for preparing chlorine from hydrochloric acid, which comprises the steps: a) providing a hydrochloric acid feed stream I; b) providing a hydrochloric acid recycle stream II; c) separating...
US20080269515 Process for the oxidation of a gas mixture containing hydrogen chloride  
Chlorine is prepared by catalytic oxidation of a hydrogen chloride stream having a content of sulfur in elemental or bonded form of less than 100 ppm, preferably less than 50 ppm, more preferably...
US20100303710 PROCESS FOR PRODUCING CHLORINE  
Disclosed is a process for producing chlorine by oxidation of hydrogen chloride through a catalytic gas-phase reaction in the presence of a catalyst, wherein hydrogen chloride as a raw material is...
US20080299032 Process For Producing Supported Ruthenium and Process For Producing Chlorine  
The present invention provides a process for producing supported ruthenium, which comprises recovering a ruthenium compound from supported ruthenium used as a catalyst in production of chlorine by...
US20080247941 Mechanically Stable Catalyst Based on Alpha-Alumina  
A catalyst for gas-phase reactions which has high mechanical stability and comprises one or more active metals on a support comprising aluminum oxide as support material, wherein the aluminum...
US20100296998 REACTOR FOR PRODUCING CHLORINE AND PROCESS FOR PRODUCING CHLORINE  
A rector for producing chlorine according to the present invention is a multi-tubular heat exchanger type reactor for use in producing chlorine by oxidizing hydrogen chloride with oxygen,...

Matches 1 - 50 out of 69 1 2 >