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Class Information
Number: 23/293S
Name: Chemistry: physical processes > Physical processes > Sulfur
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6132484 |
Wet granulation method for generating fertilizer granules |
Oct. 17, 2000 |
| 5928617 |
Process for removal of mercury contamination |
Jul. 27, 1999 |
| 5902474 |
Chloride assisted hydrometallurgical extraction of metal |
May. 11, 1999 |
| 5897850 |
Process for removing elemental sulfur from a gas stream |
Apr. 27, 1999 |
| 5874055 |
Chloride assisted hydrometallurgical extraction of metal |
Feb. 23, 1999 |
| 5869012 |
Chloride assisted hydrometallurgical extraction of metal |
Feb. 9, 1999 |
| 5861099 |
Process for the filtration of suspensions containing sulfur |
Jan. 19, 1999 |
| 5807410 |
Process for removing elemental sulfur from a gas stream |
Sep. 15, 1998 |
| 5599373 |
Sulfur-based chemical soil-corrective in the form of pellets for agricultural use |
Feb. 4, 1997 |
| 5338515 |
SO.sub.2 sensor |
Aug. 16, 1994 |
| 5290321 |
Process for preparation of granular .mu.-sulfur having improved flowability, as a vulcanizing agent of rubber composition |
Mar. 1, 1994 |
| 5122351 |
Method and apparatus for removing H.sub.2 S from a process gas and recovering sulfur |
Jun. 16, 1992 |
| 5096683 |
Process of combusting an H.sub.2 S-containing gas |
Mar. 17, 1992 |
| 5071332 |
Sulphur granulator |
Dec. 10, 1991 |
| 5071633 |
Method of improving handling characteristics of froth of elemental sulfur particles |
Dec. 10, 1991 |
| 5049370 |
Process and apparatus for purifying elemental sulfur carried in an aqueous cake |
Sep. 17, 1991 |
| 5041275 |
Reduced acid buildup in moist sulfur during storage |
Aug. 20, 1991 |
| 5004588 |
Process for removal of hydrogen sulfide from gaseous stream |
Apr. 2, 1991 |
| 4965062 |
Hydrogen sulfide removal and sulfide recovery |
Oct. 23, 1990 |
| 4944769 |
Process for the granulating of sulphur |
Jul. 31, 1990 |
| 4935221 |
Water condenser/separator systems for Claus processes |
Jun. 19, 1990 |
| 4876079 |
Separation of a mixture of sulfur and alkaline solution and apparatus therefor |
Oct. 24, 1989 |
| 4730369 |
Method and apparatus for melting and recovering sulfur in aqueous slurries |
Mar. 15, 1988 |
| 4722832 |
Sulfur recovery process |
Feb. 2, 1988 |
| RE32454 |
Process for desulfurization of coal and ores |
Jul. 7, 1987 |
| 4647287 |
Recovery of sulfur from sulfur froth |
Mar. 3, 1987 |
| 4631068 |
Removal of sulfur from aqueous suspension using filtration |
Dec. 23, 1986 |
| 4597609 |
Method of melting sulphur |
Jul. 1, 1986 |
| 4595350 |
Process and apparatus for preparing sulfur having uniform particle size distribution |
Jun. 17, 1986 |
| 4534955 |
Sulfur extraction process |
Aug. 13, 1985 |
| 4518576 |
H.sub.2 S Removal from gas streams |
May. 21, 1985 |
| 4515764 |
Removal of H.sub.2 S from gaseous streams |
May. 7, 1985 |
| 4508537 |
Method for removing elemental sulfur particles from the aqueous washing solution of a hydrogen sulfide removal process |
Apr. 2, 1985 |
| 4383821 |
Automatic shutoff for sulfur melter apparatus |
May. 17, 1983 |
| 4304570 |
Method of separation of sulfur from a scrubbing liquid |
Dec. 8, 1981 |
| 4286966 |
Process for the melting of sulfur |
Sep. 1, 1981 |
| 4234318 |
Process for granulation of sulfur |
Nov. 18, 1980 |
| 4171200 |
Process and apparatus for in situ melting of sulphur from solid sulphur storage block |
Oct. 16, 1979 |
| 4139347 |
Method for cooling molten sulphur |
Feb. 13, 1979 |
| 4137938 |
Method and apparatus for transmitting liquid suphur over long distances |
Feb. 6, 1979 |
| 4095953 |
Modular system for reducing sulfur dioxide |
Jun. 20, 1978 |
| 4050740 |
Method of and apparatus for melting block sulphur |
Sep. 27, 1977 |
| 3993443 |
Noxious vapor suppression using glass microbubbles with a fluorosilane or polyfluorosiloxane film |
Nov. 23, 1976 |
| 3991225 |
Method for applying coatings to solid particles |
Nov. 9, 1976 |
| 3936534 |
Process for producing free flowing particulate sulfur |
Feb. 3, 1976 |
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