 |
|
 |
| |
 |
|
Class Information
Number: 423/DIG.14
Name: Chemistry of inorganic compounds > Reaction techniques > Ion exchange; chelation or liquid/liquid ion extraction
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7491345 |
Extraction mixture for recovery of actinide elements from acidic solutions |
Feb. 17, 2009 |
| 7410632 |
Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid |
Aug. 12, 2008 |
| 7393466 |
Compositions and methods for anion absorbent metal hydroxides |
Jul. 1, 2008 |
| 7309474 |
Composition and process |
Dec. 18, 2007 |
| 7182872 |
Struvite crystallization |
Feb. 27, 2007 |
| 7037482 |
Solvent extraction of a halide from a aqueous sulphate solution |
May. 2, 2006 |
| 6986878 |
Method of producing potassium sulfate via cation exchange |
Jan. 17, 2006 |
| 6858161 |
Method for purifying electronic item material |
Feb. 22, 2005 |
| 6846470 |
Methods for producing indium-containing aqueous solutions containing reduced amounts of metal impurities |
Jan. 25, 2005 |
| 6638431 |
Formulation and method for treating wetted surface elements in climate control systems |
Oct. 28, 2003 |
| 6511603 |
Alkaline earth cation extraction from acid solution |
Jan. 28, 2003 |
| 6475458 |
Method for formulating food grade sodium bicarbonate |
Nov. 5, 2002 |
| 6468445 |
Solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes |
Oct. 22, 2002 |
| 6364931 |
Separation of platinum group metals |
Apr. 2, 2002 |
| 6355694 |
Modified stannic oxide--zirconium oxide complex sol and preparation method thereof |
Mar. 12, 2002 |
| 6344079 |
Alkane and polyamine solvent compositions for liquid delivery chemical vapor deposition |
Feb. 5, 2002 |
| 6331513 |
Compositions for dissolving metal sulfates |
Dec. 18, 2001 |
| 6277300 |
Composition and use of composition for the extraction of metal values |
Aug. 21, 2001 |
| 6214105 |
Alkane and polyamine solvent compositions for liquid delivery chemical vapor deposition |
Apr. 10, 2001 |
| 6207612 |
Removal of impurities from hydrocarbon streams |
Mar. 27, 2001 |
| 6169119 |
Metal oxide sols and process for making the same |
Jan. 2, 2001 |
| 6139767 |
Carboxylated polymers, process for the production of the same, and gels thereof |
Oct. 31, 2000 |
| 6113804 |
Composition and use of the composition for the extraction of metals from aqueous solution |
Sep. 5, 2000 |
| 6045763 |
Process for working up ammoniacal metal solutions including treating the wash water with an organic extraction solution |
Apr. 4, 2000 |
| 5993757 |
Reoximation of metal extraction circuit organics |
Nov. 30, 1999 |
| 5980787 |
Protective element for an electro-chemical accumulator and process for its fabrication |
Nov. 9, 1999 |
| 5976401 |
Agent for removing phosphates, nitrates and nitrites from wastewater |
Nov. 2, 1999 |
| 5916359 |
Alkane and polyamine solvent compositions for liquid delivery chemical vapor deposition |
Jun. 29, 1999 |
| 5863439 |
Process for separation and preconcentration of radium from water |
Jan. 26, 1999 |
| 5849258 |
Material with microporous crystalline walls defining a narrow size distribution of mesopores, and process for preparing same |
Dec. 15, 1998 |
| 5820664 |
Precursor compositions for chemical vapor deposition, and ligand exchange resistant metal-organic precursor solutions comprising same |
Oct. 13, 1998 |
| 5792441 |
Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds stream |
Aug. 11, 1998 |
| 5758255 |
Opposite phase entrainment reduction in solvent extraction/electrowinning circuits by addition of water soluble cationic polymers |
May. 26, 1998 |
| 5756063 |
Process for manufacturing isocyanates and producing reagent grade hydrochloric acid therefrom |
May. 26, 1998 |
| 5750032 |
Removal of lithium from polymer cements |
May. 12, 1998 |
| 5733361 |
High concentration colloidal dispersion of a cerium compound and a process for its preparation |
Mar. 31, 1998 |
| 5679281 |
Gelled material compositions with modified halopolymer |
Oct. 21, 1997 |
| 5670078 |
Magnetic and nonmagnetic particles and fluid, methods of making and methods of using the same |
Sep. 23, 1997 |
| 5607594 |
Process for purifying an aqueous methyldiethanolamine solution |
Mar. 4, 1997 |
| 5578245 |
Method of preparing a stable colloid of submicron particles |
Nov. 26, 1996 |
| 5545309 |
Method of processing organic quaternary ammonium hydroxide-containing waste liquid |
Aug. 13, 1996 |
| 5525315 |
Process for removing heavy metal ions with a chelating cation exchange resin |
Jun. 11, 1996 |
| 5520813 |
Processing of nuclear waste solutions by membrane separation |
May. 28, 1996 |
| 5500126 |
Process for removal of metal ions from aqueous solutions |
Mar. 19, 1996 |
| 5474593 |
Agent for treating metal ions in an aqueous solution, process for producing the metal ion-treating agent and method for treating metal ions in an aqueous solution |
Dec. 12, 1995 |
| 5468536 |
Sorbent articles |
Nov. 21, 1995 |
| 5441712 |
Hydrometallurgical process for producing zinc oxide |
Aug. 15, 1995 |
| 5424050 |
Process for extracting gallium from bayer liquors using an impregnated absorbent resin |
Jun. 13, 1995 |
| 5411573 |
Recovery of precious metals from acid solutions by N-containing electroactive polymers |
May. 2, 1995 |
| 5389594 |
Degradable chelants having sulfonate groups, uses and compositions thereof |
Feb. 14, 1995 |
|
|
|
 |
|
 |
|
| |
Randomly Featured Patents |
|
