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Class Information
Number: 423/574.2
Name: Chemistry of inorganic compounds > Sulfur or compound thereof > Elemental sulfur > Reacting a sulfide > Hydrogen sulfide > With sulfur dioxide > In inorganic liquid
Description: Processes where the reacting step takes place in liquid media without an organic carbon compound as a principle constituent; e.g., in water.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6962683 |
Method of removing and recovering elemental sulfur from highly reducing gas streams containing sulfur gases |
Nov. 8, 2005 |
| 5618507 |
Process for removing SO.sub.2 from gases which contain it, with direct production of elemental sulfur |
Apr. 8, 1997 |
| 5389351 |
Method for desulfurizing a gas |
Feb. 14, 1995 |
| 5057298 |
Process for recovery of sulfur values from a gas stream |
Oct. 15, 1991 |
| 4861577 |
Method for removing the sulphur content of a weak gas containing sulfur dioxide |
Aug. 29, 1989 |
| 4855124 |
Process for the desulfurization of gas containing hydrogen sulfide |
Aug. 8, 1989 |
| 4844881 |
Process for the production of sulfur from hydrogen sulfide using high concentration oxygen and recycle in combination with a scrubbing tower |
Jul. 4, 1989 |
| 4664903 |
Removal of sulfur compounds from gases |
May. 12, 1987 |
| 4647287 |
Recovery of sulfur from sulfur froth |
Mar. 3, 1987 |
| 4636377 |
Integrated scrubbing of SO.sub.2 and production of sulfur |
Jan. 13, 1987 |
| 4507274 |
Desulfurization of H.sub.2 S-containing gases |
Mar. 26, 1985 |
| 4450145 |
Process for the removal of SO.sub.2 from gas streams |
May. 22, 1984 |
| 4442083 |
Method of desulfurizing waste gases containing sulfur dioxide |
Apr. 10, 1984 |
| 4307069 |
Desulfurization of flue gases with complete sulfite oxidation |
Dec. 22, 1981 |
| 4241032 |
Process for the removal of hydrogen sulfide from gas streams |
Dec. 23, 1980 |
| 4239996 |
Potassium carbonate recovery |
Dec. 16, 1980 |
| 4201754 |
Method for the conversion of calcium sulfoxy compounds into calcium carbonate compounds in sulfur oxide treatment processes |
May. 6, 1980 |
| 4186176 |
Method of simultaneously removing sulfur dioxide and nitrogen oxides from exhaust gases |
Jan. 29, 1980 |
| 4174383 |
Process for purifying a sulfur dioxide containing gas with production of elemental sulfur |
Nov. 13, 1979 |
| 4171349 |
Desulfurization process and installation for hydrocarbon reservoir fluids produced by wells |
Oct. 16, 1979 |
| 4134961 |
Process for the desulfurization of flue gases |
Jan. 16, 1979 |
| 4126529 |
Ferrous ion scrubbing of flue gas |
Nov. 21, 1978 |
| 4124685 |
Method for substantially complete removal of hydrogen sulfide from sulfur bearing industrial gases |
Nov. 7, 1978 |
| 4115079 |
Removing pollutants from aqueous liquor used to scrub fuel gasification product |
Sep. 19, 1978 |
| 4083944 |
Regenerative process for flue gas desulfurization |
Apr. 11, 1978 |
| 4048293 |
Process for purifying a sulfur dioxide containing gas |
Sep. 13, 1977 |
| 4036943 |
Process for removing sulfur dioxide from a gas and producing sulfur therefrom |
Jul. 19, 1977 |
| 4001386 |
Process for H.sub.2 S removal employing a regenerable polyalkanolamine adsorbent |
Jan. 4, 1977 |
| 3983225 |
Recovery of sulfur from sulfur dioxide rich aqueous absorbents |
Sep. 28, 1976 |
| 3974258 |
Process for purifying a sulfur dioxide containing gas |
Aug. 10, 1976 |
| 3969492 |
Recovery of elemental sulfur from sulfur dioxide bearing waste gases |
Jul. 13, 1976 |
| 3935100 |
Process for the treatment of waste waters containing sulfuric acid and/or ammonium sulfate |
Jan. 27, 1976 |
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