Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7824634 | Method for etching phosphate ores A method for etching phosphate ores includes a single-pass digesting of ores which P205 content is greater than 20% in weight by a hydrochloric aqueous acid solution having an HCI concentration less than 10% by weight with an etching solution f... | 11/02/2010 |
| 7378070 | Phosphorous pentoxide producing methods A phosphorous pentoxide producing method includes forming a kiln bed using feed agglomerates with a calcium-to-silica mole ratio of less than 1.0 and maintaining a bed temperature at or above 1180° C. along at least 50% of the bed length without exceeding 1380° C.... | 05/27/2008 |
| 6932002 | System and method of processing solid waste A system and associated method of processing solid waste via a waste gasification process results in usable by-products. The method utilizes a rotary kiln heated to a temperature of at least 800° F. and a reduction chamber, heated to a temperature of at least 1800Â... | 08/23/2005 |
| 6451276 | Recovery of elemental phosphorus from phosphorus sludge Disclosed is a method of recovering elemental phosphorus from a sludge that contains water, dirt, and elemental phosphorus. In the first step, the sludge is melted. A mixture is formed of the melted sludge and about 0.5 to about 5 wt % of an oxidizing age... | 09/17/2002 |
| 6409978 | Method of removing impurities from mineral concentrates A process for removing impurities contained in the crystal lattice of minerals, comprising the steps of forming a mixture of a mineral capable of structurally reorganizing its crystal lattice which contains an impurity in its crystal lattice and a halogen... | 06/25/2002 |
| 6231767 | Treatment of phosphatic wastes A process for treating thickened phosphatic clay suspensions, waste clay and phosphogypsum produced in the processing of phosphate ore by water beneficiation and chemical processing, the thickened phosphatic clay suspension having a solid content of from ... | 05/15/2001 |
| 6183712 | Production of dicalcium phosphate or monocalcium phosphate from calcium phosphate A method of producing dicalcium phosphate from calcium phosphate includes reacting the calcium phosphate with a mineral acid such as sulphuric acid to produce a calcium salt and phosphoric acid. The calcium salt may then be hydrolyzed to form a calcium al... | 02/06/2001 |
| 6090353 | Method of removing impurities from mineral concentrates A process for removing impurities contained in the crystal lattice of minerals, comprising the steps of forming a mixture of a mineral capable of structurally reorganizing its crystal lattice which contains an impurity in its crystal lattice and a halogen... | 07/18/2000 |
| 5679315 | Method of production of high purity silica The present invention provides a basic method for producing high purity silica and ammonium fluoride from silicon tetrafluoride-containing gas, particularly the gas generated by acidulation. The basic method comprises recovering silicon tetrafluoride-cont... | 10/21/1997 |
| 5500193 | Method for ION exchange based leaching of the carbonates of calcium and magnesium from phosphate rock This invention relates to the extraction of carbonates of magnesium and/or calcium with a strong hydrogen form cation-exchange resin from a phosphate rock composition in an aqueous slurry, wherein the phosphate rock and the resins have been classified to ... | 03/19/1996 |
| 5094680 | Zeolite-activated guano phosphates and a method for producing the same Zeolite-activated guano phosphate fertilizers are produced by a method comprising grinding guano phosphates to 10 mesh granules by roughing and middling mills, heating in a rotary kiln, cooling, finely grinding to obtain 100 mesh guano phosphate powder, a... | 03/10/1992 |
| 4919906 | Processes and equipment for production of elemental phosphorus and thermal phosphoric acid New processes and equipment are disclosed for producing elemental phosphorus and thermal phosphoric acid. Benefits are listed below. 1. Phosphorus-containing solids are recycled to smelting furnaces thus eliminating hazardous waste generation. 2. Phosphorus fu... | 04/24/1990 |
| 4798717 | Production of elements and compounds by deserpentinization of ultramafic rock Ultramafic rock material containing, or which is serpentinized so as to contain, substantially or completely serpentinized material, or alternatively, clay material containing structural water, is subjected to a temperature and pressure for a period of ti... | 01/17/1989 |
| 4793979 | Process for chemical separation of phosphorus ore The present invention is depicting a chemical separation of phorphorus ore. Phosphorus ore, especially calcareous and clacareous-sillicious phosphorus ore can be effectively converted into several products through chemical separation, which consists of tw... | 12/27/1988 |
| 4777026 | Production of phosphates from alkali-processes phosphate rock Process for production of desired phosphates from naturally occurring phosphates is characterized by treating naturally occurring phosphates under alkaline conditions to produce a material comprising trisodium and/or tripotassium orthophosphates, carbonat... | 10/11/1988 |
| 4759920 | Process for the manufacture of disodium phosphate The present invention relates to a process for the manufacture of disodium phosphate of a high purity without utilizing organic solvents. According to the process, monosodium sulfate is reacted, at a temperature, in the range of 40 to 100 degrees C. with ... | 07/26/1988 |
| 4673555 | Method for preparation of defluorinated phosphate Phosphate rock is defluorinated by blending with phosphoric acid and a sodium defluorination reagent sufficient to give 5 to 9 percent Na2 O based on the weight of rock and a mole ratio of CaO plus Na2 O to P2 O5 | 06/16/1987 |
| 4609535 | Extracting soluble phosphates from naturally occurring iron and aluminium phosphates using solutions of alkali metal carbonates and hydroxides A process for production of alkali metal phosphates from material containing iron and aluminium phosphates comprises leaching the said material with alkali metal carbonate solution to produce a leachate containing dissolved phosphates, and recovering alka... | 09/02/1986 |
| 4592900 | Method of removing cadmium from raw phosphate A method of removing cadmium from raw phosphate material in an apparatus comprising a preheater section (2,13) a reactor section (3,4,5), a cooler section (7) and an exit gas cleaning section having a cadmium condenser (6,20,21), where the reactors (3,5) ... | 06/03/1986 |
| 4577804 | Wet grinding phosphate rock in an acidic slurry Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment. A method for monitoring and controlling grinding ball consumption is provided in which acid-neutralizing particu... | 03/25/1986 |
| 4559204 | Treatment of phosphate ore used in preparing phosphate matrix slurries There is disclosed a method of producing water-based phosphate matrix slurries wherein the as-mined phosphate matrix is dried prior to the formation of the slurry. Drying the matrix decreases the viscosity of the slurry and improves the clay consolidation... | 12/17/1985 |
| 4557909 | Method to improve acidulation quality of North Carolina phosphate rock Phosphate rock is heated under controlled conditions to essentially eliminate organic impurities and sulfides from the rock and subsequently leached with water to substantially increase the porosity and surface area of the calcined solid and remove any tr... | 12/10/1985 |
| 4556548 | Process for purifying wet-processed phosphoric acid The disclosure relates to a process for purifying crude, concentrated wet-processed phosphoric acid. To this end, the disclosure provides: (a) for the organic solvent to be mixed with the starting product in a ratio by volume of more than 4:1 to effect in a si... | 12/03/1985 |
| 4556545 | Method for conditioning phosphate ores There is disclosed an improved process of beneficiating phosphate-containing ores. The process comprises stabilizing a hydrocarbon oil, normally used in a conditioning step to improve separation of the ore from the solid contaminants in a flotation step, ... | 12/03/1985 |
| 4555388 | Method and apparatus for calcining raw phosphate material Raw phosphate material is calcined to remove pollutants, such as organic compounds and sulphides, by heat treatment in two suspension calciners (3,5) arranged in series. Fuel supplied at burners (8) is burnt in the calciners with air, supplied in parallel... | 11/26/1985 |
| 4511543 | Method for beneficiation of phosphate rock The present invention relates to a method for beneficiation of phosphate rock by a thermal treatment, wherein an appreciable increase in P2 O5 and decrease in cadmium contents in the calcined product are achieved. According to the in... | 04/16/1985 |
| 4423015 | Process of producing defluorinated product from low BPL phosphate rock In a process for producing a defluorinated product containing calcium, sodium and phosphorus, by calcination of a mixture of phosphate rock, with caustic soda, phosphoric acid and water, an improvement comprises maintaining the amount of phosphoric acid i... | 12/27/1983 |
| 4420466 | Process for producing phosphorus pentoxide A process for producing phosphorus pentoxide from phosphate ore includes the mixing and formulation of a feed mixture of phosphate ore with lime and solid carbonaceous material in amounts to produce a feed mixture having a CaO/SiO2 mole ratio g... | 12/13/1983 |
| 4389380 | Multiple-stage thermal beneficiation process for phosphate ores A multiple-stage thermal beneficiation process for phosphate ores which comprises calcining a phosphate ore in a first stage at a temperature sufficient to destroy substantial quantities of organic impurities in the phosphate ore but not so high as to cau... | 06/21/1983 |
| 4374817 | Formulation of phosphate rock slurries The viscosity of phosphate rock slurries is reduced by incorporating in the slurry both sodium tripolyphosphate and an alkaline material, particularly sodium hydroxide. The combined amount of these two materials required to achieve a given viscosity reduc... | 02/22/1983 |
| 4372929 | Energy conservation and pollution abatement at phosphorus furnaces A process and product of waste recovery at phosphorus furnaces is disclosed wherein small sized discrete particles of carbonaceous material or beneficiated phosphate ore are mixed with a mineral acid, an alkaline fluid and water, and the reacted mixture i... | 02/08/1983 |
| 4351809 | Process for reducing phosphate ore A process for reducing phosphate ore includes beneficiating phosphate ore to reduce alumina impurities while allowing fluoride impurities to remain in the beneficiated ore, mixing beneficiated ore with solid carbonaceous material to form a porous bed of a... | 09/28/1982 |
| 4321238 | Process for high temperature phosphate ore burning High temperature phosphate are burning process in which the ore is preheated by gases produced by the combustion of a fuel in the burning zone, and then enters the burning zone and is cooled by a current of cool air which is used, at least partly, as comb... | 03/23/1982 |
| 4304754 | Fluid bed calcining apparatus In order to increase or maintain the capacity of fluid bed calciners in the calcination of phosphate rock containng large amounts of organic matter ("hot rocks"), the calciner is modified to permit a pyrolysis reaction to occur in the freeboard zone of th... | 12/08/1981 |
| 4279635 | Process for treating phosphatic clay suspensions A process for treating thickened phosphatic clay suspensions produced in the processing of phosphate ore by water beneficiation, and which have a solids content of from about 5% to about 30%. A deflocculating agent is mixed with the suspension to cause de... | 07/21/1981 |
| 4263262 | Fluid bed calcining process In order to increase or maintain the capacity of fluid bed calciners in the calcination of phosphate rock containing large amounts of organic matter ("hot rocks"), the calciner is modified to permit a pyrolysis reaction to occur in the freeboard zone of t... | 04/21/1981 |
| 4239523 | Method for manufacturing phosphatic fertilizers having a high concentration, particularly calcium metaphosphate Ca(PO3)2 A fertilizer rich in calcium metaphosphate is produced by reacting phosphorite or other calcium phosphate-bearing mineral, with ammonium bisulphate to produce a precipitate of calcium sulphate and an aqueous solution rich in ammonium mono- and biphosphate... | 12/16/1980 |
| 4238459 | Chemical beneficiation of phosphatic limestone and phosphate rock with -hydroxysulfonic acids A method of selectively extracting calcite and dolomite away from apatite in phosphate rock or phosphatic limestone wherein the phosphate rock or phosphatic limestone is treated with a mixture of sulfur dioxide, water, and a carbonyl compound. Solids are ... | 12/09/1980 |
| 4177052 | Process for preparing dicalcium phosphate containing fertilizer There is disclosed a process for preparing fertilizers containing dicalcium phosphate from phosphates of mineral origin by mechanical activation. According to the invention grains larger than 5 mm of the sized or unsized starting phosphate compound of min... | 12/04/1979 |
| 4151259 | Use of oil-water emulsions in a hydrothermal process This invention relates to hydrothermal processes, such as defluorination of phosphate rock, wherein the novel feature resides in the use of an emulsion of water and fuel oil.... | 04/24/1979 |
