Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7326397 | Catalytic partial oxidation process for recovering sulfur from an HS-containing gas stream A process for purifying a light hydrocarbon stream containing H2S is disclosed in which the selective catalytic partial oxidation of the H2S component is carried out while the hydrocarbon components slip through substantially unconverted. A cat... | 02/05/2008 |
| 7311891 | Process for the recovery of sulfur from Claus tail gas streams Recovering sulfur from a gas stream containing hydrogen sulfide by oxidizing the gas stream to convert the hydrogen sulfide in the gas stream to sulfur oxide, and thus form a sulfur oxide enriched gas stream. The sulfur oxide enriched gas stream is contacted with a ... | 12/25/2007 |
| 7264654 | Process and system for the condensation of multi-component working fluids A process and system for condensing a multi-component fluid is disclosed, where the process and system are designed to provide a substantial increase in a heat transfer coefficient during condensation of multi-component fluids resulting in a drastic reduction in siz... | 09/04/2007 |
| 7261874 | Gas phase electrolyzer process for producing hydrogen The invention provides a method for a sulfur based hydrogen production cycle wherein the sulfur products are maintained in a gaseous state throughout the cycle. The cycle includes a decomposition of a gaseous phase sulfur trioxide to sulfur dioxide and water in a de... | 08/28/2007 |
| 7261870 | Process for the reduction of carbon monoxide and carbonyl sulfide emissions Carbon monoxide and carbonyl sulfide emissions are reduced in manufacturing processes, including titanium tetrachloride production processes. Gas is contacted with CO, COS, and an oxygen-containing gas with a suitable catalyst. The catalyst may be a metal oxide cata... | 08/28/2007 |
| 7060233 | Process for the simultaneous removal of sulfur and mercury A process for removing hydrogen sulfide, other sulfur-containing compounds and/or sulfur and mercury from a gas stream contaminated with mercury, hydrogen sulfide or both. The method comprises the step of selective oxidation of hydrogen sulfide (H2S) in a... | 06/13/2006 |
| 6645459 | Method of recovering sulfurous components in a sulfur-recovery process H2 S is removed from an H2 S-rich gas, and sulfur is produced, by a process in which the H2 S-rich gas is reacted with SO2 in a reactor in the presence of an organic solvent and a catalyst, an H2 S-co... | 11/11/2003 |
| 6497855 | Process for the production of hydrogen from hydrogen sulfide A process is provided for the production of hydrogen from hydrogen sulfide by reacting carbon monoxide with hydrogen sulfide to produce hydrogen and carbonyl sulfide, and then reacting the carbonyl sulfide with oxygen to produce carbon monoxide and sulfur... | 12/24/2002 |
| 6180078 | Method for thermally regenerating spent acid A process is provided for the thermal decomposition of contaminated sulfuric acid, which was obtained from the scrubbing of sulfur dioxide contaminated gases created in the pyrometallurgical production of metals. The contaminated sulfuric acid is concentr... | 01/30/2001 |
| 6149886 | Process for the desulphurization of gaseous substrate A process for desulfurization of a gaseous substrate containing O2, SO2, SO3, H2 SO4, H2 S, CS2, COS and/or organic sulfur-containing components. The combustible components are o... | 11/21/2000 |
| 6146612 | Method for recovering sulfuric acid from sulfate salts A process is provided for the recovery of sulfuric acid from NH4 HSO4 and (NH4)2 SO4 salts produced from the sulfuric acid hydrolysis of methylmercaptopropionaldehyde (MMP) cyanohydrin to produce 2-hy... | 11/14/2000 |
| 5843394 | Catalyst for the oxidation of gaseous sulphur compounds The invention relates to an all-metal catalyst for the oxidation of gaseous sulphur compounds, more particularly hydrogen sulphide, in an oxygen-containing atmosphere, said catalyst consisting of a metal alloy of 5 to 70% by weight nickel and 30 to 95% by... | 12/01/1998 |
| 5817909 | Purification of waste/industrial effluents comprising organic/inorganic pollutants Waste/industrial effluents containing contaminating amounts of organic and/or inorganic species, for example effluents containing sulfate or sulfuric acid values, or effluents emanating from the production of methionine, are safely and effectively purifie... | 10/06/1998 |
| 5702678 | Method for optimizing the temperature of a Claus unit A method is disclosed for treating sulfur containing waste streams, comprising: a) injecting said sulfur containing waste streams into a sulfuric acid regeneration unit so as to produce a sulfur dioxide containing effluent; b) passing a portion of said sulfur ... | 12/30/1997 |
| 5658541 | Process for removal of divalent sulfur compounds from waste gases A process and apparatus for removal of volatile divalent sulfur compounds from waste gases. Volatile organic compounds are advantageously removed in the same process. The divalent sulfur compounds are oxidized in a combustion zone, then preferably removed... | 08/19/1997 |
| 5314671 | Process and device for removal of H2 S Process for removing hydrogen sulfide at low concentration in a gas containing water vapor. The gas is cooled to a temperature below the dew point of water, which condenses and separates the water. The dry gas is scrubbed free of hydrogen sulfide by an H | 05/24/1994 |
| 5271919 | Process for the thermal decomposition of metal sulphates A process for the thermal decomposition of metal sulphate mixtures at temperatures from 800° to 1100° C. under oxidizing conditions, in which the metal sulphate mixtures are mixed with roasting residue and reacted together with fuels in the decompositio... | 12/21/1993 |
| 5096683 | Process of combusting an H2 S-containing gas An H2 S-containing gas is combusted with oxygen in at least one burner, which discharges into a combustion chamber. The resulting mixed gases contain H2 S, SO2, free hydrogen and elementary sulfur and are at temperatures o... | 03/17/1992 |
| 4971781 | Working up sodium sulfate-containing residues Sodium sulfate-containing residues are worked up by reducing the sulfate by a process in which the sulfate or a mixture or solution of the sulfate is thermally cleaved by adding oxygen, air or oxygen-enriched air at above 1000° C., in particular above 12... | 11/20/1990 |
| 4963513 | Coal gasification cogeneration process The present invention relates to the coproduction of a combustible gas stream usable as an energy source, a sulfur-dioxide-containing second gas stream usable as a source of oxidant in the gasification of coal, and a sulfur-dioxide-containing third gas st... | 10/16/1990 |
| 4946658 | Addition of pyritic materials to feed mix for desulfurization of phosphogypsum A pelletized mixture of gypsum, carbonaceous material and pyrite is charged to a travelling grate where the charge is heated under suitable conditions to produce a solid sintered material which has a broad spectrum of applications due to its chemical and ... | 08/07/1990 |
| 4937058 | Catalytic oxidation of sulfur compounds Sulfur containing organics, e.g., carbon disulfide carbon oxysulfide, or a mercaptan, are oxidized to sulfur dioxide in gaseopus phase, whether alone or conjointly with hydrogen sulfide and/or elemental sulfur, per se, by passing a gaseous stream thereof,... | 06/26/1990 |
| 4917024 | Coal fired power plant with pollution control and useful byproducts A coal fired power plant includes a coal gasification zone where coal is gasified in the presence of an oxidant-lean atmosphere under partial coal gasifying conditions to produce a carbonaceous char and a crude gas stream, an acid separating zone where su... | 04/17/1990 |
| 4853206 | Treatment of waste material A gas mixture including sulphur dioxide is recovered from sulphate waste material by burning a fuel to form a flame zone, introducing sulphate waste material into the zone and introducing pure oxygen or other oxygen-rich gas into the flame zone to support... | 08/01/1989 |
| 4824655 | Process for the preparation of sulphur dioxide A process for the preparation of sulphur dioxide by the thermal decomposition of metal sulphates in a fluidized bed reactor with sulphur-containing reducing agents and energy suppliers, characterized in that a mixture comprising the metal sulphates, the s... | 04/25/1989 |
| 4744969 | Process for the conversion of coal and gypsum to valuable products The present invention relates to the coproduction of a combustible feed gas stream useable as an energy source and a sulfur-containing second gas stream useable as a feedstock for the production of sulfuric acid. The process includes heating coal in the p... | 05/17/1988 |
| 4743436 | Methods for preventing ammonium bisulfate formation during the noncatalytic reduction of nitric oxide The present invention is related to a method for preventing the formation of NH4 HSO4 during the noncatalytic reduction of nitric oxide by ammonia or ammonia precursors in combustion effluents. The formation of this sticky and corros... | 05/10/1988 |
| 4687647 | Conversion of molybdenite to molybdenum dioxide using petroleum or coal tar pitches Molybdenite, MoS2, is completely converted into molybdenum dioxide, MoO2, by mixing MoS2 with petroleum or coal tar pitches and heating in air at 400°-600° F.... | 08/18/1987 |
| 4678647 | Process for the recovery of gallium and germanium from coal fly ash A method is disclosed for recovering gallium and/or germanium from fly ash which comprises pelletizing the fly ash, treating the pellets in the presence of an oxidizing gas at a temperature of from about 900° C. to just below the fusion temperature of th... | 07/07/1987 |
| 4582122 | Efficient waste heat recovery process from sulfur containing flue gas In the recovery of waste heat from flue gas containing particulate solids, CO2, SO2, SO3 and H2 O, several improvements are provided, e.g., passing hot flue gas, e.g., from a power plant, over heat exchange surf... | 04/15/1986 |
| 4576814 | Catalyst and process for oxidizing hydrogen sulfide Catalysts comprising bismuth and vanadium components are highly active and stable, especially in the presence of water vapor, for oxidizing hydrogen sulfide to sulfur or SO2. Such catalysts have been found to be especially active for the conver... | 03/18/1986 |
| 4523948 | Roasting of molybdenite concentrates containing flotation oils A method is provided for treating molybdenum concentrates in a roasting furnace having a first roasting zone and at least a second roasting zone, the concentrate containing residual flotation oil in an amount over 2% by weight which during roasting inhibi... | 06/18/1985 |
| 4508544 | Converting a fuel to combustible gas A sulfur-containing fuel is passed into a first fluidized bed (13) containing CaSO4 and CaO and an oxygen-transfer mediator (e.g. H2) whereby the fuel is converted to combustible gas (18), some CaSO4 being reduced to CaS a... | 04/02/1985 |
| 4503018 | Desulfurization of phosphogypsum Phosphogypsum is mixed with fine coal, balled, and charged to a travelling grate where the charge is heated under reducing conditions to evolve sulfur and/or sulfur dioxide for conversion into sulfuric acid.... | 03/05/1985 |
| 4444741 | Catalyst and process for oxidizing hydrogen sulfide Catalysts comprising bismuth and vanadium components are highly active and stable, especially in the presence of water vapor, for oxidizing hydrogen sulfide to sulfur or SO2. Such catalysts have been found to be especially active for the conver... | 04/24/1984 |
| 4444742 | Catalyst and process for oxidizing hydrogen sulfide Catalysts comprising bismuth and vanadium components are highly active and stable, especially in the presence of water vapor, for oxidizing hydrogen sulfide to sulfur or SO2. Such catalysts have been found to be especially active for the conver... | 04/24/1984 |
| 4444908 | Catalyst and process for oxidizing hydrogen sulfide Catalysts comprising bismuth and vanadium components are highly active and stable, especially in the presence of water vapor, for oxidizing hydrogen sulfide to sulfur or SO2. Such catalysts have been found to be especially active for the conver... | 04/24/1984 |
| 4431622 | Process for producing CO2, and CO2 so produced Fuel is passed (via line 13) to a fluidized fuel conversion bed (21) containing reactive CaO and CaSO4 at a fuel-oxidation temperature (e.g. 730° C.) below the temperature at which CaO reacts with CO2 to form CaCO3. The b... | 02/14/1984 |
| 4415356 | Process for autogenous oxygen smelting of sulfide materials containing base metals An autogeneous smelting process for suldie materials using a roasted portion blended with unroasted material in the presence of a flux.... | 11/15/1983 |
| 4394119 | Process for combusting ammonia-containing gases which also contain hydrogen sulfide An ammonia-containing gas stream and a hydrogen sulfide-containing gas stream are combusted to a mixture of SO2 and H2 S in a ratio of substantially 1:2 in the thermal zone of a sulfur recovery unit by feeding said streams separately... | 07/19/1983 |
