Patents for C01D 15 - Lithium compounds (2,046)
04/1996
04/24/1996CN1121045A Method of removing bromate from LiBr solution
03/1996
03/05/1996US5496661 Reacting a salt with a lithium base in a solvent to be used in the electrolyte, removing residual reactants and by-products and adding more solvent
02/1996
02/28/1996CN1117473A Chemical reacting tank for obtaining metal and salt
09/1995
09/27/1995CN1109104A Manufacture of lithium hydroxide from lithionite and lime stone by sintering
09/20/1995CN1108617A Purificating technology of directly making lithium bromide
09/20/1995CN1108616A Controlling method used in the synthesizing course of directly making lithium bromide
09/19/1995US5451383 Lithium recovery
08/1995
08/30/1995CN1107519A Absorbent production with lithium recovery
08/09/1995CN1106358A Method for extracting li salt from bittern
06/1995
06/29/1995WO1995017346A1 Preparation of lithium hexafluorophosphate solutions
06/28/1995EP0659481A2 Adsorbent production with lithium recovery
06/28/1995CN1029112C Method for extracting alkali metal chemical compound from lepidolite concentrate
04/1995
04/05/1995EP0646546A1 METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL
03/1995
03/15/1995EP0643433A1 Simplified preparation of LiPF6 based electrolyte for non-aqueous batteries
03/14/1995US5397557 Sulfiding, salt formation, nematocides
02/1995
02/14/1995US5389349 Intercalation compound of lithium salt and alumina; ion exchanging
01/1995
01/03/1995US5378445 Preparation of lithium hexafluorophosphate solutions
12/1994
12/13/1994US5372617 Hydrogen generation by hydrolysis of hydrides for undersea vehicle fuel cell energy systems
10/1994
10/25/1994CA2099504C Rechargeable battery including a li___ mn_0_ cathode and a carbon anode
10/19/1994CN1093679A Method for preparation of lemery salt
10/13/1994WO1994022767A1 METHOD OF PRODUCTION OF LiM3+O2 OR LiMn2O4 AND LiNi3+O2 AS POSITIVE POLE MATERIAL OF SECONDARY CELL
09/1994
09/01/1994WO1994019280A1 Process for obtaining lithium chloride from solutions and a device for carrying out the same
09/01/1994WO1994019100A1 Alkali metal dispersions
08/1994
08/03/1994CN1090217A Method for separating Li isotope with titanium hydrogen diphosphate
04/1994
04/06/1994CN1024124C Prepn. method for lithium carbonate by using precipitate of ammonium carbonate
01/1994
01/11/1994US5277891 Method of producing pure hot hydrogen
11/1993
11/16/1993US5262137 Crystallization by lowering the temperature after separating from residal solution then heating
08/1993
08/25/1993EP0557089A1 Sunscreen agents containing layered double hydroxides
07/1993
07/20/1993US5229507 Substituted naphthalocyanines and their use
06/1993
06/15/1993US5219550 Production of low boron lithium carbonate from lithium-containing brine
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
03/23/1993US5196279 Rechargeable battery including a Li1+x Mn2 O4 cathode and a carbon anode
12/1992
12/16/1992CN1067028A Pressurized boiling process for preparing lithium carbonate with lithium mica ore and mixed base
12/06/1992CA2043892A1 Lithium transition metal oxide
07/1992
07/29/1992WO1992013367A1 RECHARGEABLE BATTERY INCLUDING AN Li1+xMn2O4 CATHODE AND A CARBON ANODE
07/22/1992EP0494933A1 Tetrathiocarbonate process
07/21/1992US5131988 Method of extracting lithium from aluminum-lithium alloys
07/07/1992CA1304564C Boron purification process for lithium carbonate
04/1992
04/28/1992US5108726 Compacts of spray dried water soluble compounds
04/01/1992EP0477964A2 Method for recovering lithium chloride
03/1992
03/25/1992CN1059702A Preparation method for lithium carbonate by using precipitate of ammonium carbonate
03/17/1992CA1297265C Process of producing lithium carbonate
09/1991
09/04/1991CN1054234A Process for preparation of carbonates of alkali metals
08/1991
08/08/1991CA2009616A1 Method of producing carbonic acid salts of alkali metals
08/07/1991EP0439636A1 Alkali metal (hydrogen) carbonate production process
07/1991
07/10/1991CN1052851A Tetrathiocarbonate process
06/1991
06/19/1991EP0433220A2 Substituted naphthalocyanine and its use
06/11/1991CA1284844C Brine treatment using ethylene/carboxylic acid polymers
05/1991
05/23/1991CA2030392A1 Substituted naphthalocyanines and their use
05/15/1991EP0427520A1 Electrorheological fluids
05/08/1991CA2029409A1 Electrorheological fluids
05/07/1991CA1283984C Removal of metals from 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
10/1990
10/16/1990US4963341 Process for degrading hypochlorite and sodium hypochlorite
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
09/05/1990EP0385724A2 Improved method for preparing non-aqueous electrolytes
08/1990
08/01/1990EP0379917A2 Optically active (meth)acrylic-acid derivatives, their preparation, their polymerisation into optically active polymers and their use
05/1990
05/29/1990US4929588 Sodium removal, from brines
04/1990
04/24/1990US4919911 Method of recovering a lithium chloride
03/1990
03/08/1990WO1990002097A1 Compacts of spray dried water soluble compounds
02/1990
02/06/1990CA1265535A1 Removal of impurities from amines
11/1989
11/14/1989US4880714 Method for preparing non-aqueous electrolytes
08/1989
08/22/1989US4859343 Ion exchanging using antimonic or polyantimonic acid
06/1989
06/28/1989EP0321881A2 Method of recovering a lithium chloride
05/1989
05/10/1989EP0314977A2 Device for producing energy
12/1988
12/21/1988CN87101960A Technology of lithium carbonate production by sulfate process
11/1988
11/10/1988DE3737722C1 Appliance for energy generation
05/1988
05/31/1988US4747957 Brine treatment using ethylene carboxylic acid polymers
05/31/1988US4747954 Ethylene-unsaturated acid copolymer
03/1988
03/22/1988US4732751 High purity lithium oxide process
02/1988
02/09/1988US4723962 Process for recovering lithium from salt brines
01/1988
01/07/1988DE3622105A1 Process for winning lithium carbonate
01/06/1988CN85100710B Low qm piezoelectric ceramic material and its preparation method
12/1987
12/23/1987EP0250342A1 Process for recovering aluminium and lithium from metallic scrap
12/03/1987DE3716557A1 Verfahren zur reinigung des lithiumkarbonats von bor Method for cleaning of lithium carbonate bor
11/1987
11/04/1987CN87103431A Method of extracting anhydrous lithium chloride from brine containing lithium
10/1987
10/15/1987DE3712141A1 Verfahren zur herstellung von lithiumoxid hoher reinheit A process for producing high purity lithium oxide
07/1987
07/08/1987EP0227893A2 Method of removing metal contaminants from solutions
07/07/1987CA1223742A1 Regeneration of crystalline lithium aluminates
07/01/1987EP0227437A2 Separation of metallic lithium
05/1987
05/12/1987US4665049 Ion exchanger
04/1987
04/28/1987US4661634 Filtration through porous polymer particles in fiber form
04/07/1987US4655828 From mixture with lithium salts by solvent extraction
03/1987
03/04/1987EP0211983A1 Crystalline 3-layer lithium aluminates
01/1987
01/13/1987US4636295 Method for the recovery of lithium from solutions by electrodialysis
09/1986
09/17/1986CN85101989A Technology for preparation of li2co3 by treating lithium-loaded mica with k2so4
08/1986
08/27/1986CN85100710A Low qm piezoelectric ceramic material and its preparation method
08/20/1986CN85100702A Ultra-sonic large power piezoelectric ceramics and manufacture
07/1986
07/15/1986US4600566 Chromatography, cryptand resin
05/1986
05/13/1986US4588566 Comminution, slurrying, alkali hydroxides or carbonates, sulfuric acid lithium carbonate
05/13/1986US4588565 Separation of lithium chloride from impurities
12/1985
12/24/1985US4560759 Polyether compound containing quinoline group and carboxylic acid group
09/1985
09/10/1985US4540509 Crystalline 3-layer lithium aluminates
07/1985
07/02/1985US4526855 Reacting lithium nitride, lithium halide, to form pressed body, heating, annealing
04/1985
04/16/1985CA1185710A1 Lithium halide brine purification
10/1984
10/16/1984US4477367 Crystalline 2-layer lithium-hydroxy aluminates
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