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Class Information
Number: 423/84
Name: Chemistry of inorganic compounds > Treating mixture to obtain metal containing compound > Group ivb metal (ti, zr, or hf) > Treating with compound containing alkali metal or alkaline earth metal
Description: Processes which include the step of reacting or contacting the mixture with a compound which contains an alkali metal or an alkaline earth metal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7618601 |
Process for enrichment of anatase mechanical concentrates in order to obtain synthetic rutile with low contents of rare earth and radioactive elements |
Nov. 17, 2009 |
| 7582276 |
Nanoscale rutile or anatase oxide and method for producing same |
Sep. 1, 2009 |
| 7575629 |
Pollutant emission control sorbents and methods of manufacture |
Aug. 18, 2009 |
| 7537741 |
Gold and silver recovery from polymetallic sulfides by treatment with halogens |
May. 26, 2009 |
| 7494631 |
Titaniferous ore beneficiation |
Feb. 24, 2009 |
| 7476378 |
Process for producing titanium dioxide |
Jan. 13, 2009 |
| 7431903 |
Tubular titanium oxide particles and process for preparing same |
Oct. 7, 2008 |
| 7252767 |
Hydrous zirconium oxide, hydrous hafnium oxide and method of making same |
Aug. 7, 2007 |
| 7223378 |
Preparation of barium titanate or strontium titanate having a mean diameter of less than 10 nanometers |
May. 29, 2007 |
| 7211230 |
Process for producing nanometer grade powders |
May. 1, 2007 |
| 7208126 |
Titanium dioxide nanopowder manufacturing process |
Apr. 24, 2007 |
| 7157072 |
Cathode composition for lithium batteries and method of preparing the same |
Jan. 2, 2007 |
| 7135156 |
Method for processing a zirconium oxide composition in crystalline form |
Nov. 14, 2006 |
| 7101519 |
Zirconium basic carbonate and methods of making the same |
Sep. 5, 2006 |
| 7078009 |
Lepidocrocite type lithium potassium titanate, method for preparation thereof, and friction material |
Jul. 18, 2006 |
| 7063824 |
Beneficiation of zircon |
Jun. 20, 2006 |
| 7041150 |
Preparation of alloys by the Armstrong method |
May. 9, 2006 |
| 6929786 |
Method for separating zirconium and hafnium tetrachlorides with the aid of a melted solvent |
Aug. 16, 2005 |
| 6890647 |
Alumina hydrate particle, alumina hydrate particle dispersion sol and liquid coating for forming ink-receiving layer and substrate having ink-receiving layer |
May. 10, 2005 |
| 6656588 |
Ultrafine powders and their use as lasing media |
Dec. 2, 2003 |
| 6645445 |
Process for removing titanium oxide or red oxide from ethylene glycol |
Nov. 11, 2003 |
| 6627165 |
Process for upgrading a titaniferous material containing silica |
Sep. 30, 2003 |
| 6627164 |
Sodium zirconium carbonate and zirconium basic carbonate and methods of making the same |
Sep. 30, 2003 |
| 6471743 |
Methods for leaching of ores |
Oct. 29, 2002 |
| 6346223 |
Process for the production of titanium concentrate from anatase ores with high utilization of the iron contents of the ore |
Feb. 12, 2002 |
| 6231636 |
Mechanochemical processing for metals and metal alloys |
May. 15, 2001 |
| 6162752 |
Barium titanate powder, semiconducting ceramic, and semiconducting ceramic electronic element |
Dec. 19, 2000 |
| 5885536 |
Process for alkaline leaching a titaniferous material |
Mar. 23, 1999 |
| 5866750 |
Method for removal of metal alkoxide compounds from liquid hydrocarbon |
Feb. 2, 1999 |
| 5702575 |
Method of preparing an electrochemical planar metal/metal oxide electrode |
Dec. 30, 1997 |
| 5679131 |
Method for producing titanium oxide from ore concentrates |
Oct. 21, 1997 |
| 5591506 |
Non-polluting alkali-metal bisulfate system for producing titanium dioxide pigment |
Jan. 7, 1997 |
| 5578109 |
Treatment of titaniferous materials |
Nov. 26, 1996 |
| 5478538 |
Removal of radioactivity from zircon |
Dec. 26, 1995 |
| 5391362 |
High surface area zirconia |
Feb. 21, 1995 |
| 5389355 |
Method of preparing a synthetic rutile from a titaniferous slag containing alkaline earth metals |
Feb. 14, 1995 |
| 5378438 |
Benefication of titaniferous ores |
Jan. 3, 1995 |
| 5169619 |
Method of producing titanium oxides |
Dec. 8, 1992 |
| 5158651 |
Process of centrifugally removing inorganic compounds from polyester glycol recovery bottoms |
Oct. 27, 1992 |
| 5149510 |
Reactive zirconium oxide and its preparation |
Sep. 22, 1992 |
| 5085837 |
Method for purifying TiO.sub.2 ore by alternate leaching with an aqueous solution of an alkali metal compound and an aqueous solution of mineral acid |
Feb. 4, 1992 |
| 5063032 |
Method of preparing a synthetic rutile from a titaniferous slag containing magnesium values |
Nov. 5, 1991 |
| 5011674 |
Method of producing titanium oxides |
Apr. 30, 1991 |
| 5011666 |
Method for purifying TiO.sub.2 ore |
Apr. 30, 1991 |
| 5009866 |
Fused salt process for purifying zirconium and/or hafnium tetrachlorides |
Apr. 23, 1991 |
| 4933153 |
Method of preparing a synthetic rutile from a titaniferous slag containing magnesium values |
Jun. 12, 1990 |
| 4923507 |
Process for opening ores |
May. 8, 1990 |
| 4917773 |
Process for introducing zirconium tetrachloride, hafnium tetrachloride and mixtures thereof into a column for the continuous extractive distillation under pressure of said chlorides |
Apr. 17, 1990 |
| 4913778 |
Molten salt scrubbing of zirconium or hafnium tetrachloride |
Apr. 3, 1990 |
| 4897116 |
High purity Zr and Hf metals and their manufacture |
Jan. 30, 1990 |
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