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