Patents
Patents for C01D 13 - Compounds of sodium or potassium not provided for elsewhere (180)
06/2006
06/28/2006CN1261619C Field preparation process for ferrate and its device
06/21/2006CN1789141A Method for preparing nano-tubular sodium titanate/titanci acid
06/07/2006CN1781846A Process for preparing potassium hydrogen persulfate composite salts
05/2006
05/31/2006CN1778669A Preparation of single potassium persulfate
05/03/2006CN1765753A Potassium ferrate preparation method
04/2006
04/19/2006CN1760129A Oxide of transition metalin treble valence state, and preparation method
03/2006
03/29/2006CN1752002A Method of preparing two kinds of perferrate at the same time
03/29/2006CN1752001A Preparation method of sodium thiophosphate
03/22/2006CN1749166A Process for preparing solid potassium ferrate
04/2005
04/13/2005CN1196646C Method for improving blocking-resistant property of sodium chlorate crystal
03/2005
03/16/2005CN1594090A Method for separating and recovering sodium arsenate and alkali by fractional crystallization method
03/02/2005CN1587068A Process for preparing solid potassium ferrate (VI)
12/2004
12/23/2004US20040258613 Process for the production and purification of sodium hydride
10/2004
10/06/2004CN1535244A Method for producing and purifying sodium hydride
04/2004
04/28/2004EP1412285A1 Method for producing and purifying sodium hydride
03/2004
03/03/2004CN1140451C Method and apparatus for preparing potassium sulfate and ammonium potassium chloride with industrial effluent containing ammonium sulfate
06/2003
06/17/2003CA2203486C Clear aqueous solutions of sodium silicate
02/2003
02/27/2003WO2003016214A1 Method for producing and purifying sodium hydride
02/27/2003CA2456917A1 Process for the production and purification of sodium hydride
01/2003
01/29/2003EP1279641A1 Process for production and purification of sodium hydride
09/2002
09/18/2002CN1369436A Process for treating alkaline sewage
05/2002
05/01/2002CN1346803A Process for preparing crystal wisker of potassium hexatitanate
02/2002
02/20/2002CN1336323A Method and equipment of preparing potassium sulfate and ammonium potassium chloride with industrial effluent containing ammonium sulfate
10/2001
10/31/2001CN1319559A Method for improving blocking-resistant property of sodium chlorate crystal
10/02/2001US6296828 Process of making alkali metal tetrathiocarbonates
07/2001
07/17/2001US6261529 Process of making alkali metal tetrathiocarbonates
08/2000
08/30/2000CN1265230A Inorganic hydrogen compounds, separation methods, and fuel applications
06/2000
06/28/2000CN1257835A Alkaline liquid composition and its preparing process
11/1999
11/30/1999US5993771 Tetrathiocarbonate continuous process
02/1999
02/04/1999WO1999005735A1 Inorganic hydrogen compounds, separation methods, and fuel applications
02/03/1999CN1041913C Method for producing sodium ferrocyanide
06/1998
06/24/1998CN1185418A Process for preparing potassium titanate fiber
02/1997
02/27/1997WO1997006910A1 Alkali metal dispersions
06/1996
06/12/1996CN1031974C Stabilized thiocarbonate solutions and use thereof for controlling sail pests
04/1996
04/18/1996WO1996011165A1 Process for synthesizing thiocarbonates
09/1995
09/27/1995CN1109023A Production of sodium ferrocyanide by AS thiamine process
03/1995
03/14/1995US5397557 Sulfiding, salt formation, nematocides
11/1994
11/01/1994US5360782 Aqueous solution comprising a thiocarbonate, a sulfide, and an ammoniacal compound
08/1994
08/23/1994US5340593 Stabilized solid thiocarbonate
07/1994
07/26/1994US5332580 Fumigation method employing an aqueous solution comprising a hexametaphosphate, a thiocarbonate, and a sulfide
06/1994
06/08/1994EP0600292A1 Process for producing a stabilised, aqueous solution of alkali metal tetrathiocarbonate and its use
02/1994
02/22/1994US5288495 Using bases, sulfide and/or polysulfide as stabilizers; treating soils for nematodes
10/1993
10/26/1993US5256424 Addition of base and sulfide or polysulfide
10/05/1993CA1322712C Stabilized thiocarbonate solutions
08/1993
08/31/1993US5240709 Stabilized solid thiocarbonate compositions and methods for making same
04/1993
04/06/1993US5200041 Composite element incorporating a polyether or copolyether, its preparation process and its use for extracting and separating metal cations
03/1993
03/02/1993US5190677 Dispersion in waxes, oil, greases
12/1992
12/22/1992US5173306 Adding base, sulfide and/or polysulfide; dehydration
12/01/1992US5167966 Soil fumigants
11/1992
11/24/1992US5165920 Stabilized thiocarbonates
07/1992
07/22/1992EP0494933A1 Tetrathiocarbonate process
07/22/1992CN1062884A Preparation process for high-content sodium rhodanide
05/1992
05/12/1992US5112623 Fumigation methods using a thiocarbonate/urea aqueous composition
09/1991
09/11/1991CN1054403A Solid thiocarbonates and method of manufacture and use
09/05/1991WO1991013028A1 Solid thiocarbonates and methods of manufacture and use
08/1991
08/20/1991US5041240 Stabilized thiocarbonate solutions
08/13/1991US5039327 Pesticides
07/1991
07/10/1991CN1052851A Tetrathiocarbonate process
06/1991
06/11/1991US5022912 Adding a soil fumigation effective amount of salts of tethio-or tetrathio-, carbonic acids
05/1991
05/07/1991US5013350 Stabilized thiocarbonate solutions
04/1991
04/03/1991WO1991004944A1 Tetrathiocarbonate process
04/03/1991CA2067125A1 Tetrathiocarbonate process
03/1991
03/13/1991EP0416078A1 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations
12/1990
12/13/1990WO1990011390A3 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations
09/1990
09/18/1990WO1990011390A2 Composite element comprising a polyether or copolyether, process for its preparation and its use for the extraction and separation of metallic cations
09/18/1990CA2030547A1 Composite element incorporating a polyether or copolyether, its preparation process and its use for extracting and separating metal cations
07/1990
07/04/1990EP0376550A2 Stabilized solid thiocarbonate compositions and methods for making same
06/1990
06/28/1990CA2005873A1 Stabilized solid thiocarbonate compositions and methods for making same
05/1990
05/16/1990CN1042042A Stabilized thiocarbonate solutions and use thereof for controlling soil pests
05/02/1990EP0366226A1 Stabilized thiocarbonate solutions and the use thereof for controlling soil pests
02/1988
02/23/1988US4726144 Fumigation methods and compositions
07/1987
07/07/1987US4678584 Method of removing heavy metal from wastewater streams
09/1986
09/16/1986US4612125 Method for removing heavy metal from wastewater streams
01/1986
01/21/1986US4565612 Double salts
11/1985
11/05/1985US4551167 Ammonia, hydrogen sulfide, carbon disulfide
08/1985
08/13/1985CA1191708A1 Stabilized fumigant compositions
10/1984
10/09/1984US4476113 Stabilized fumigant composition comprising an aqueous solution of ammonia, hydrogen sulfide, carbon disulfide and sulfur
08/1984
08/08/1984EP0114974A2 Process for decomposing sodium hydroxide containing multiple salts
03/1979
03/27/1979US4146577 By reacting the chlorides, bromides, or iodides with sulfur trioxide
12/1978
12/05/1978US4128397 Sulfur dioxide liberation compositions and methods of using same
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