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Class Information
Number: 423/562
Name: Chemistry of inorganic compounds > Sulfur or compound thereof > Binary compound > Polysulfide
Description: Products or processes wherein the compound includes associated sulfur in addition to the amount normally present in a sulfide.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7604785 |
Process for the recovery of elemental sulphur from residues produced in hydrometallurgical processes |
Oct. 20, 2009 |
| 7534413 |
Calcium-sodium polysulfide chemical reagent and production methods |
May. 19, 2009 |
| 7468146 |
Metal chalcogenide composite nano-particles and layers therewith |
Dec. 23, 2008 |
| 7371307 |
Kraft pulp yield by heat treatment of polysulphide liquors generated by oxidation |
May. 13, 2008 |
| 6984368 |
Process for preparing calcium thiosulfate solution |
Jan. 10, 2006 |
| 6875414 |
Polysulfide measurement methods using colormetric techniques |
Apr. 5, 2005 |
| 6866748 |
Process for preparing polysulfides using clarified white liquor |
Mar. 15, 2005 |
| 6605234 |
Polysulfide solutions and hydroxalkylaminium ions for stabilizing elemental sulfur |
Aug. 12, 2003 |
| 6544492 |
Regeneration method for process which removes hydrogen sulfide from gas streams |
Apr. 8, 2003 |
| 6451729 |
Method for preparing a highly active, unsupported high surface-area MoS2 catalyst |
Sep. 17, 2002 |
| 6264819 |
Method for producing polysulfide by electrolytic oxidation |
Jul. 24, 2001 |
| 6156693 |
Method for preparing a highly active, unsupported high-surface-area ub . MoS.s2 catalyst |
Dec. 5, 2000 |
| 5993601 |
Process for producing polysulphide by means of oxidizing sulphide in spent liquors from kraft cellulose cooking |
Nov. 30, 1999 |
| 5972197 |
Method for producing polysulfides by electrolytic oxidation |
Oct. 26, 1999 |
| 5958281 |
Lithium ion-conductive solid electrolyte and method for producing the same |
Sep. 28, 1999 |
| 5863268 |
Metal goalkeeper's hockey stick |
Jan. 26, 1999 |
| 5762807 |
Composition and process for treating water and gas streams containing heavy metals and other pollutants |
Jun. 9, 1998 |
| 5733516 |
Process for removal of hydrogen sulfide from a gas stream |
Mar. 31, 1998 |
| 5686056 |
Methods and apparatus for purifying hydrogen sulfide |
Nov. 11, 1997 |
| 5478541 |
Separately removing mercaptans and hydrogen sulfide from gas streams |
Dec. 26, 1995 |
| 5455206 |
Corrosion resistant ceramic materials |
Oct. 3, 1995 |
| 5451327 |
Compound and method for treating water containing metal ions and organic and/or inorganic impurities |
Sep. 19, 1995 |
| 5376749 |
Stabilized ammonium polysulfide solutions and process utilizing same |
Dec. 27, 1994 |
| 5279801 |
Production of binary rare earth/sulfur or transition metal/sulfur compounds |
Jan. 18, 1994 |
| 5242672 |
Process for removing sulfur from organic polysulfides |
Sep. 7, 1993 |
| 5157009 |
Catalyst for hydrorefining hydrocarbon feedstocks containing niobium trisulphide |
Oct. 20, 1992 |
| 5080881 |
Method of preparing lower sodium polysulfides from higher sodium polysulfides and sodium |
Jan. 14, 1992 |
| 5075098 |
Method of preparing Na.sub.2 S (II) |
Dec. 24, 1991 |
| 4976937 |
Sulfur dioxide removal from flue gases with sulfite oxidation inhibition |
Dec. 11, 1990 |
| 4855123 |
Method of oxidizing sulfide-containing liquor |
Aug. 8, 1989 |
| 4735790 |
Antimony thioantimonate lubricant additive and preparation |
Apr. 5, 1988 |
| 4722832 |
Sulfur recovery process |
Feb. 2, 1988 |
| 4684515 |
Single crystal article |
Aug. 4, 1987 |
| 4675168 |
Antimony thioantimonate and intermediate preparation for lubricant additive |
Jun. 23, 1987 |
| 4640832 |
Process for the production of sodium polysulfides from the elements sodium and sulfur |
Feb. 3, 1987 |
| 4382011 |
Composition of matter useful in flue gas desulfurization process |
May. 3, 1983 |
| 4366131 |
Highly reactive iron oxide agents and apparatus for hydrogen sulfide scavenging |
Dec. 28, 1982 |
| 4323480 |
Method of preparing di and poly chalcogenides of group IVb, Vb, molybdenum and tungsten transition metals by low temperature precipitation from non-aqueous solution and the product obtained by |
Apr. 6, 1982 |
| 4246243 |
Use of steel plant waste dusts for scavenging hydrogen sulfide |
Jan. 20, 1981 |
| 4246244 |
Process for scavenging hydrogen sulfide from hydrocarbon gases |
Jan. 20, 1981 |
| 4243563 |
Calcium polysulfide soil stabilization method and compositions |
Jan. 6, 1981 |
| 4210526 |
Desulfurizing fossil fuels |
Jul. 1, 1980 |
| 4201759 |
Method for regenerating calcium sulfoxy compounds produced in the combustion of carbonaceous fuels in fluidized beds |
May. 6, 1980 |
| 4171350 |
Method for reacting hydrogen and oxygen in the presence of a liquid phase |
Oct. 16, 1979 |
| 4156656 |
Preparation of hydrosulfides |
May. 29, 1979 |
| 4147626 |
Treatment of mercury contaminated aqueous media |
Apr. 3, 1979 |
| 4094669 |
Polytetrafluoroethylene membrane filters for mercury recovery |
Jun. 13, 1978 |
| 4073748 |
Method for preparing wetproofed catalyst particles and particles produced thereby |
Feb. 14, 1978 |
| 4024229 |
Production of polysulfide with PTFE coated catalyst |
May. 17, 1977 |
| 3985555 |
Decomposition of chalcopyrite |
Oct. 12, 1976 |
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