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| Number | Title | Issue Date |
| 7288241 | Black composite oxide particle and method for production thereof A black composite oxide particle includes a composite oxide having Fe, Mg and Al as metal components. The particle contains Fe, Mg and Al in amounts of 30 to 55 mass %, 1 to 10 mass %, and 1 to 10 mass %, respectively, and has an atomic ratio of Fe3+/Fe | 10/30/2007 |
| 7179437 | Feeding device and process and feeding system which utilize the feeding device Feeding device for feeding burned lime to a reaction vessel for causticizing a soda liquor to caustic soda. The feeding device, in its upper part, comprises an inlet for a slurry of the burned lime and the soda liquor for formation of said slurry inside said feeding... | 02/20/2007 |
| 6869905 | Synthesis of double metal cyanides with non-aqueous solutions An improved method for synthesizing a double metal cyanide (DMC) catalyst includes combining a non-aqueous solution of a first metal salt, such as ZnBr2, with a non-aqueous solution of a second metal salt, such as CoBr2, and with a non-aqueous ... | 03/22/2005 |
| 5927288 | Hydromagnesite/magnesium hydroxide fillers for smoking article wrappers and methods for making same Hydromagnesite-magnesium hydroxide compositions are prepared which, when used as fillers in smoking article wrappers, significantly reduce the amount of sidestream smoke produced by the burning smoking article while providing the smoking article with good... | 07/27/1999 |
| 5567665 | Shape-shifted magnesium alkoxide component for polymerizing olefins A process is provided for preparing a shape-shifted catalyst component comprising (1) contacting a dihydrocarbyloxide magnesium compound with carbon dioxide in the presence of a slurrying agent to form a slurry of a carboxylated dihydrocarbyloxide magnesi... | 10/22/1996 |
| 5498362 | Process for the production of road deicers from water plant residuals An improved process for the production of road deicer products preferably containing calcium magnesium acetate or calcium magnesium acetate/calcium magnesium propionate is provided. The process involves first providing a residual water plant sludge starti... | 03/12/1996 |
| 5268154 | Process for disaggregating boronatrocalcite ore in an alkaline medium for the production of sodium borate and calcium borate A process for disaggregating boronatrocalcite ore (Ulexite) in an alkaline aqueous medium for the production of sodium borate and calcium borate, characterized in that boronatrocalcite is dispersed in alkaline mother liquor having a H3 BO3... | 12/07/1993 |
| 4685935 | Process for producing pure magnesium sulphite A process for producing a pure magnesium sulphite from crude crystalline magnesium sulphite. Into a full suspension or flow containing magnesium sulphite crystals at least one further water-containing and heat-supplying flow is led. The heat-supplying flo... | 08/11/1987 |
| 4548794 | Method of recovering nickel from laterite ores According to the present invention, processes are provided for recovery of nickel, cobalt and like metal values from laterite ores wherein the ores are separated into high and low magnesium containing fractions, the low magnesium fraction is leached with ... | 10/22/1985 |
| 4541994 | Method of liberating nickel- and cobalt-enriched fines from laterite According to the present invention, Ni- and Co-rich, low Mg fines may be advantageously separated from the coarse fractions of lateritic ores by atmospheric or low pressure leaching. In particular, the process of the present invention comprises contacting... | 09/17/1985 |
| 4512958 | Method of recovering molybdenum oxide A method of recovering molybdenum oxide as in U.S. Pat. No. 4,379,127 wherein, however, the temperature in the autoclave and the pressure therein are controlled within narrow ranges by increasing the suspension density of the molybdenum sulfide suspension... | 04/23/1985 |
| 4415542 | Controlling scale composition during acid pressure leaching of laterite and garnierite ore The scaling of autoclave and leaching-equipment surfaces during the high pressure leaching of nickeliferous oxide and silicate ores is controlled during leaching to favor the formation of scale containing substantial amounts of magnesium sulfate that is m... | 11/15/1983 |
| 4379127 | Method of recovering molybdenum oxide A method of recovering molybdenum oxide by oxidation of a molybdenum sulfide concentrate contaminated with impurities wherein the concentrate in an average particle size in the range of 20 to 90 microns is suspended to form an aqueous suspension which is ... | 04/05/1983 |
| 4243429 | Process for producing tobermorite and ettringite A lime material and a siliceous material containing 10 to 40% by weight of alumina are admixed with an alkali solution, and the mixture is subjected to hydrothermal reaction with saturated water vapor at 4 to 40 kg/cm2 to form tobermorite. The ... | 01/06/1981 |
| 4115106 | Method for producing metallic oxide compounds A method for producing metallic oxide compounds having a spinel type structure by reacting the beta form of hydrated iron oxide with a salt of an effective metallic cation.... | 09/19/1978 |
| 4066735 | Process for demineralization of crustacea shells This disclosure is concerned with the demineralization of crustacea shells and the like, before or after protein removal therefrom, with sulfurous acid, thus to convert the calcium carbonate of the shell to calcium bisulfite solution which may be separate... | 01/03/1978 |
| 4058587 | Process for removing impurities from acidic fluid solutions A process is disclosed for removing impurities such as carbon dioxide, and sulfur dioxide from acidic fluid solutions using a serpentine material and producing a reaction product comprising recoverable metal values and finely divided silica. In accordance... | 11/15/1977 |
| 3970528 | Process for the purification of electrolysis brine Brine is purified prior to electrolysis by dividing it into two streams, removing sulfate from one of the streams by precipitation with calcium chloride to form calcium sulfate, removing the precipitate and re-combining the streams. Alkali hydroxide plus ... | 07/20/1976 |
