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Class Information
Number: 423/554
Name: Chemistry of inorganic compounds > Sulfur or compound thereof > Oxygen containing > Sulfate > Alkaline earth metal containing (mg, ca, sr, or ba)
Description: Products or processes wherein the compound contains magnesium, calcium, strontium or barium.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7575735 |
Metal oxide and metal fluoride nanostructures and methods of making same |
Aug. 18, 2009 |
| 7575734 |
Process for preparing dispersible sulfate, preferably barium sulfate nanoparticles |
Aug. 18, 2009 |
| 7455823 |
Process for the preparation of micron/nano sized inorganic material |
Nov. 25, 2008 |
| 7371357 |
Process for removal of pollutants |
May. 13, 2008 |
| 7288239 |
Method for producing alkaline earth sulphate nanoparticles |
Oct. 30, 2007 |
| 7285260 |
Synthesis method for carbon material based on Li.sub.xM.sub.1-yM'(XO.sub.4).sub.n |
Oct. 23, 2007 |
| 7211235 |
Method for producing hydrotalcites |
May. 1, 2007 |
| 7008606 |
Process for passivating sulfidic iron-containing rock |
Mar. 7, 2006 |
| 7001582 |
Micronized barium sulfate |
Feb. 21, 2006 |
| 6858562 |
Catalyst for decomposing organic harmful substances and method for decomposing organic halides by use thereof |
Feb. 22, 2005 |
| 6692656 |
Amphoteric magnesium buffers |
Feb. 17, 2004 |
| 6537962 |
Composite powder |
Mar. 25, 2003 |
| 6478971 |
Process for removing sulfate from an aqueous salt solution |
Nov. 12, 2002 |
| 6365122 |
Process for manufacturing potassium sulfate fertilizer and other metal sulfates |
Apr. 2, 2002 |
| 6306494 |
Fine particulate synthetic chalcoalumite compounds, process for their production, and heat insulator and agricultural film containing the fine particulate synthetic chalcoalumite compounds |
Oct. 23, 2001 |
| 6221332 |
Multiple stream high pressure mixer/reactor |
Apr. 24, 2001 |
| 6214313 |
High-purity magnesium hydroxide and process for its production |
Apr. 10, 2001 |
| 6203769 |
Process for the treatment of fluoboric electrolyte |
Mar. 20, 2001 |
| 6187277 |
Method for purifying gases |
Feb. 13, 2001 |
| 6099814 |
Method for processing acid effluents |
Aug. 8, 2000 |
| 6086842 |
Recycling of sodium hydroxide and production of gypsum from dry flue gas desulfurization |
Jul. 11, 2000 |
| 5980856 |
Synthetic chalcoalumite-type compounds and processes for producing the same |
Nov. 9, 1999 |
| 5976511 |
Ultraviolet rays-absorbing composition and process for producing the same |
Nov. 2, 1999 |
| 5861133 |
Synthetic chalcoalumite compounds and process for producing thereof |
Jan. 19, 1999 |
| 5814291 |
Simplified synthesis of anion intercalated hydrotalcites |
Sep. 29, 1998 |
| 5709730 |
Hydrometallurgical processing of flue dust |
Jan. 20, 1998 |
| 5707960 |
Amorphous sodium silicate-metal sulfate composite powder |
Jan. 13, 1998 |
| 5580377 |
Plate barium sulfate and process for producing the same |
Dec. 3, 1996 |
| 5554355 |
Oxide slurry for industrial process applications |
Sep. 10, 1996 |
| 5443622 |
Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
Aug. 22, 1995 |
| 5326548 |
Fibrous anhydrous magnesium oxysulfate and process for the preparation thereof |
Jul. 5, 1994 |
| 5324500 |
Method for processing residues of barium sulfide or strontium sulfide leaching |
Jun. 28, 1994 |
| 5312604 |
Work-up of waste materials from barium or strontium sulfide leaching |
May. 17, 1994 |
| 5281242 |
Method for recovering magnesium sulfate products from mixtures of epsomite and halite |
Jan. 25, 1994 |
| 5262148 |
Process for preparing barium sulfate |
Nov. 16, 1993 |
| 5262147 |
Basic composite metal sulfate fiber, process for the production thereof, and composition containing the same |
Nov. 16, 1993 |
| 5246686 |
Basic aluminum chlorosulfate flocculating agents |
Sep. 21, 1993 |
| 5246687 |
Solid-state preparation of high purity barium sulfate |
Sep. 21, 1993 |
| 5154752 |
Suppression of fines during the granulation of ammonium nitrate |
Oct. 13, 1992 |
| 5082646 |
Fibrous magnesium oxysulfate of granular form and a method of producing same |
Jan. 21, 1992 |
| 5021226 |
Method of producing fibrous magnesium oxysulfate of granular form |
Jun. 4, 1991 |
| 4990319 |
Process for producing ammonia and sulfur dioxide |
Feb. 5, 1991 |
| 4980135 |
Process for separating barium from water-soluble strontium salts |
Dec. 25, 1990 |
| 4894093 |
Process for producing barium sulfate with reactive surface |
Jan. 16, 1990 |
| 4867961 |
Method of removing sulphur dioxide from a gaseous stream |
Sep. 19, 1989 |
| 4842842 |
Process for producing .alpha.-form gypsum hemihydrate |
Jun. 27, 1989 |
| 4766103 |
Preparation of 1,4-dichlorobenzene |
Aug. 23, 1988 |
| 4724132 |
Continuous process for the manufacture of metal salt solutions from water-insoluble metal compounds and mineral acids |
Feb. 9, 1988 |
| 4707348 |
Method for neutralizing waste sulfuric acid by adding a silicate |
Nov. 17, 1987 |
| 4639362 |
Process for the production of magaldrate |
Jan. 27, 1987 |
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