|
Match
|
Document |
Document Title |
|
|
US20080044342 |
Fail-safe, on-demand sulfurous acid generator
A generator to provide sulfurous acid on demand and fail-safe operation includes a hopper to provide a supply of sulfur, and a burner connected to the hopper to receive the sulfur and combust it... |
|
|
US20120087856 |
GENERATION OF SULFUR TRIOXIDE AND SULFURIC ACID
Configurations herein include a novel process and apparatus for generating and maintaining sulfur trioxide gas. The generation system and process operate to provide sulfur trioxide calibration gas... |
|
|
US20130157845 |
SORBENTS FOR REMOVING MERCURY FROM EMISSIONS PRODUCED DURING FUEL COMBUSION
Activated carbon is rendered more thermally stable by exposure to a non-halogenated additive, and optionally to a halogen and/or a halogen-containing compound. Such treated carbon is suitable for... |
|
|
US20140079624 |
ENERGY RECOVERY IN MANUFACTURE OF SULFURIC ACID
This invention relates to the recovery of energy in the manufacture of sulfuric acid, and more particularly to enhanced recovery of energy from the absorption of wet SO3 in sulfuric acid. The... |
|
|
US20130115159 |
ENERGY RECOVERY IN MANUFACTURE OF SULFURIC ACID
This invention relates to the recovery of energy in the manufacture of sulfuric acid, and more particularly to enhanced recovery of energy from the absorption of wet SO3 in sulfuric acid. The... |
|
|
US20080044341 |
Sulfurous acid mist and sulfur dioxide gas recovery system
A system is disclosed for retrieving a mist of sulfurous acid and creating sulfurous acid from residual sulfur dioxide gas originating from an exhaust of a sulfurous acid generator. In one... |
|
|
US20140056802 |
PROCESS FOR PRODUCING SULFURIC ACID WITH LOW LEVELS OF NITROGEN OXIDES
A process for producing sulfuric acid with reduced levels of nitrogen oxides (NOx) within a typical sulfuric acid production line. A hydrazine source material can be mixed with a sulfuric acid... |
|
|
US20130336876 |
Low Temperature Sulphur Dioxide Oxidation Catalyst for Sulfuric Acid Manufacture
Improved catalysts for oxidation of sulfur dioxide which are alkali metal-promoted vanadium catalysts which are further promoted by gold. Improved methods employing such catalyst for oxidation of... |
|
|
US20130236389 |
METHOD FOR INCREASING THE SULFURIC ACID CONCENTRATION OF A SULFURIC ACID SOLUTION
Described is a method of increasing the sulfuric acid concentration of a first aqueous sulfuric acid solution with a sulfuric acid concentration of 82-89% to a concentrated sulfuric acid solution... |
|
|
US20120295812 |
METHOD FOR EXTRACTING STAPHYLOCOCCUS AUREUS ANTIGEN, REAGENT FOR EXTRACTING STAPHYLOCOCCUS AUREUS ANTIGEN, AND METHOD FOR ASSESSING STAPHYLOCCOCCUS AUREUS
The invention provides a method for extracting a Staphylococcus aureus antigen which comprises using an extraction reagent with a pH of no higher than 5.0, containing one or more acids selected... |
|
|
US20110104034 |
Hydride compounds
This invention is directed to compositions of matter comprising a hydride ion having a binding energy greater than about 0.8 eV. The claimed hydride ions may be combined with cations, including a... |
|
|
US20100284899 |
GENERATION OF SULFUR TRIOXIDE AND SULFURIC ACID
Configurations herein include a novel process and apparatus for generating and maintaining sulfur trioxide gas. The generation system and process operate to provide sulfur trioxide calibration gas... |
|
|
US20120308473 |
METHOD AND APPARATUS FOR ADJUSTING THE CONCENTRATION OF ACIDS OR LYES
A method for adjusting a concentration of an acid or lye includes charging a medium for adjusting the concentration of the acid or lye into a supply conduit of the acid or lye so as to provide a... |
|
|
US20100068127 |
PROCESS FOR THE PRODUCTION OF SULPHURIC ACID
Process for the production of concentrated sulphuric acid and oleum from feed gases with up to 70% SO2+SO3 (SOx) and a content of H2O corresponding to H2O/SO3 molar ratios up to 1.6, particularly... |
|
|
US20120067173 |
PROCESS FOR LIBERATING METALS USING DIRECT PRODUCTION OF LEACH GRADE ACID SOLUTIONS
A system which uses available waste acid process streams from hydrometallurgical extraction processes as absorption media for the direct production of leach grade acid solutions for return to the... |
|
|
US20140322125 |
RECOVERY OF SULFUR TRIOXIDE HEAT OF ABSORPTION
A contact process for manufacture of sulfuric acid is disclosed in which the vapor phase heat of formation of sulfuric acid in the sulfur trioxide conversion gas and the heat of absorption of SO3... |
|
|
US20080226540 |
Ruthenium Oxide Catalysts for Conversion of Sulfur Dioxide to Sulfur Trioxide
The present invention relates generally to catalysts comprising ruthenium oxide and to processes for catalyzing the oxidation and conversion of sulfur dioxide (SO2) to sulfur trioxide (SO3) using... |
|
|
US20090178512 |
PROCESS FOR LIBERATING METALS USING DIRECT PRODUCTION OF LEACH GRADE ACID SOLUTIONS
A system which uses available waste acid process streams from hydrometallurgical extraction processes as absorption media for the direct production of leach grade acid solutions for return to the... |
|
|
US20100061922 |
METHOD FOR PRODUCING HYDROGEN AND SULPHURIC ACID
The invention relates to a method for producing gaseous hydrogen and strong sulphuric acid (97-100 wt-%) simultaneously from sulphur dioxide gas and water. Sulphur dioxide gas stream is divided... |
|
|
US20110311433 |
PROCESS AND SYSTEM FOR PRODUCTION OF CONCENTRATED SULPHURIC ACID FROM OFF-GAS
A process and system for production of concentrated sulphuric acid from sulphuric acid by stripping the sulphuric acid with dried air. The concentration of the sulphuric acid is 90-98% by weight,... |
|
|
US20100189623 |
METHOD FOR THE RECOVERY OF MINERAL ACIDS FROM SALINE SOLUTIONS
The invention relates to a process for recovering acids from product streams of organic syntheses, which comprises the steps a) neutralization of the acid with a base,b) removal of the base by... |
|
|
US20060002845 |
Sulfuric acid process
A method of operating the standard Westinghouse Sulfur Process (2) or the standard Iodine Sulfur Process (4) both having the common initial reaction of H2SO4⇄SO2+H2O+O.5O2, where over 760° C. of... |
|
|
US20100254889 |
METHOD FOR PRODUCING SULFURIC ACID
A process for preparing sulfuric acid, in which process gases comprising sulfur dioxide are obtained by combustion of liquid sulfur by means of process air introduced from the outside or by... |
|
|
US20140205534 |
METHOD FOR PREPARING SULFURIC ACID BY USING HYDROGEN SULFIDE
Provided is a method for preparing sulfuric acid by using hydrogen sulfide. The method comprises the following steps: (1) performing a reduction-oxidation reaction between an H2S feed gas and... |
|
|
US20120171110 |
METHOD AND SYSTEM FOR THE PRODUCTION OF SULFURIC ACID
The invention relates to a method and an installation for producing sulfuric acid. First of all, a product gas flow (5) containing sulfur dioxide is produced. The product gas flow (5) is supplied... |
|
|
US20150147266 |
PROCESS FOR THE OXIDATION OF SO2 TO SO3
The present invention relates to a process plant for the oxidation of SO2 to SO3 in a process gas, said process plant comprising a heat exchanger configured for heating the process gas by heat... |
|
|
US20130071314 |
PROCESS FOR PRODUCING HYDROGEN, SULFUR AND SULFUR DIOXIDE FROM HYDROGEN SULFIDE-CONTAINING GAS STREAMS
A process for making molecular hydrogen, elemental sulfur and sulfur dioxide from hydrogen sulfide. The process involves contacting a gas stream of hydrogen sulfide within a contacting zone with a... |
|
|
US20140219910 |
SULPHURIC ACID PRODUCTION WITH RECYCLE OF DESULPHURIZED GAS
The invention relates to a process for oxidation of SO2 to SO3 comprising the steps of (a) directing a stream of feed gas comprising SO2 and O2 to a catalytically active material, (b) oxidizing an... |
|
|
US20120252999 |
PRODUCTION OF CHEMICAL COMPOUNDS
Systems and methods of producing chemical compounds are disclosed. An example chemical production system includes a combustion chamber having intake ports for entry of a gas mixture. An igniter... |
|
|
US20140048228 |
PROCESS FOR PRODUCTION OF SULPHURIC ACID
The invention relates to a condenser, having a process gas side and a heat transfer medium side said condenser being configured for feeding a hot process gas containing a condensable component to... |
|
|
US20130058854 |
PROCESS AND APPARATUS FOR SULPHURIC ACID PRODUCTION
A process for the conversion of sulphur dioxide contained in a feed gas to sulphur trioxide, comprising the steps of a) alternatingly providing a first feed gas containing a high concentration of... |
|
|
US20170182457 |
PROCESS AND PLANT FOR THE PRODUCTION OF LIQUID ACID
A process for the production of liquid acid, comprising the steps of: feeding liquid acid with a first concentration into a gas purification; passing a gas through the gas purification such that a... |
|
|
US20170107108 |
SINGLE CONTACT, SINGLE ABSORPTION SYSTEM FOR PRODUCING SULFURIC ACID WITH HIGH CONVERSION EFFICIENCY
Commercial production of sulfuric acid is almost entirely accomplished nowadays using the contact process. And the trend is to increase conversion efficiency and reduce emissions of unconverted... |
|
|
US20160045841 |
NEW AND IMPROVED SYSTEM FOR PROCESSING VARIOUS CHEMICALS AND MATERIALS
Eco-friendly systems, methods and processes/processing (EFSMP) or an integrated Matrix encompasses stand-alone and/or interconnected modules for completely self-sustained, closed-loop,... |
|
|
US20150315022 |
CONTACT APPARATUS FOR OXIDIZING SULFUR DIOXIDE AND SYSTEMS FOR PRODUCING SULFURIC ACID
A method is disclosed for oxidizing sulfur dioxide using the contact process in which a gas stream comprising the sulfur dioxide and oxygen itself is used as the cooling medium in a contact... |