Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 7785561 | Recovery of high purity PbO A process for producing high purity lead oxide from impure lead compounds particularly from waste lead battery paste which includes an oxidation-reduction step. The process results in a reduction of impure lead compounds to the +2 valence state and metal particle co... | 08/31/2010 |
| 7338647 | Synthesis of cathode active materials The present invention relates to a method for preparing an electroactive metal polyanion or a mixed metal polyanion comprising forming a slurry comprising a polymeric material, a solvent, a polyanion source or alkali metal polyanion source and at least one metal ion... | 03/04/2008 |
| 7208133 | Method for the preparation of IV-VI semiconductor nanoparticles A high temperature non-aqueous synthetic procedure for the preparation of substantially monodisperse IV-VI semiconductor nanoparticles is provided. The procedure includes introducing a first precursor selected from the group consisting of a molecular precursor of a ... | 04/24/2007 |
| 7118727 | Method of making oxide particles The present invention provides a process for producing particles, such as oxide nanoparticles, in a substantially water-free environment. The process involves mixing at least one metal compound of the formula MX(m−n) with at least one surfactant and at ... | 10/10/2006 |
| 7060245 | Process and apparatus for the continuous refining of litharge The invention relates generally to the manufacture of ortho-rhombic litharge (yellow lead oxide) and in particular to a process for the continuous refining of litharge and a loopreactor for the refining of litharge. ... | 06/13/2006 |
| 6984369 | Process for making surfactant capped metal oxide nanocrystals, and products produced by the process Disclosed is a process for making surfactant capped nanocrystals of metal oxides which are dispersable in organic solvents. The process comprises decomposing a metal cupferron complex of the formula MXCupX, wherein M is a metal, and Cup is a N-... | 01/10/2006 |
| 6858562 | Catalyst for decomposing organic harmful substances and method for decomposing organic halides by use thereof A catalyst of a water insoluble vanadyl sulfate or a complex catalyst, in which a specific oxide and a specific sulfate are combined to the water insoluble vanadyl sulfate are excellent not only in their activity, durability and SO2 resistance, not only i... | 02/22/2005 |
| 6468498 | Composite metal material, preparation thereof and photocatalytic process using same A composite metal material of formula (I) are stable and not deteriorated for a long time and have excellent activities in photolyzing water with visible light: x(A)y(B)z(C)-p(P)n(N) (I) wherein, (A) is Pb(Mg1/3 Nb2/3)O3 or Pb... | 10/22/2002 |
| 6440384 | Composition for storage battery cells and method for making same Composition of matter useful as an active mass of positive electrodes for a lead acid storage cell has an X-ray diffraction pattern substantially as shown in the. Figure. The matter is formed from lead-cadmium deposits using a methanesulfonic acid electro... | 08/27/2002 |
| 6153156 | Method for purifying leady oxides A process for providing a leady oxide having reduced levels of undesired metallic impurities such as, for example, bismuth and/or silver, comprises roasting the leady oxide to convert part to orthorhombic PbO, exposing the roasted leady oxide to particle ... | 11/28/2000 |
| 6090737 | Removal of lead from organic diaryl carbonate reaction mixtures A method for efficient removal of lead co-catalyst species from organic process streams arising from diaryl carbonate synthesis, by contacting the organic reaction mixtures with an aqueous acid, salt, or acid/salt solution, thereby extracting the treated ... | 07/18/2000 |
| 5840262 | Process for the manufacture of pure lead oxide from exhausted batteries The present invention relates to an improved process for producing lead oxide in a pure state from a spent paste resulting from exhausted acid batteries. The spent paste is first calcined and desulfurized, then leached by a concentrated solution comprisin... | 11/24/1998 |
| 5840267 | Method for producing metal oxide powders A method for producing a metal oxide powder which comprises heating a metal or metals in an atmosphere gas comprising a halogen gas, a hydrogen halide gas or a mixture of these gases in a concentration of from 0.5% by volume or more to 99.5% by volume or ... | 11/24/1998 |
| 5540915 | Method for making highly oxidized lead powder used for a lead storage battery Highly oxidized lead powder containing red lead not more than 90% is efficiently produced by maturing the lead powder material at a low temperature section of a furnace keeping the temperature less than 100° C. by spraying water to the material and then,... | 07/30/1996 |
| 5510213 | Method of preparing electrodes for lead-acid electrode battery The invention provides an electrode for a lead-acid battery, formed in an essentially continuous process without the need for curing under controlled temperature and humidity conditions. This is accomplished by using a relatively high metallic lead conten... | 04/23/1996 |
| 5482689 | Process for the accelerated production of red lead oxide This invention relates to a process for the accelerated production of red lead oxide, the lead oxide to be oxidized being kept in suspension like a fluidized bed, particularly being kept in suspension like a fluidized bed in a stirrer reactor by a stirrer... | 01/09/1996 |
| 5447708 | Apparatus for producing nanoscale ceramic powders An apparatus provides high temperature and short residence time conditions for the production of nanoscale ceramic powders. The apparatus includes a confinement structure having a multiple inclined surfaces for confining flame located between the surfaces... | 09/05/1995 |
| 5314766 | Lead-acid battery electrode and method of manufacture Positive plates are prepared by forming partially oxidized tetrabasic lead sulfate (4 PbOn . PbSO4) having at least a part of the oxide (PbOn) portion in the form of alpha lead dioxide (.varies. - PbOn), and for... | 05/24/1994 |
| 5252105 | Method of forming lead-acid battery electrode In a preferred method, an electrode for a lead-acid battery is prepared in a new continuous process without the conventional curing step. The general procedure for preparing electrodes includes preparing a mixture (paste) comprising an active material pre... | 10/12/1993 |
| 5252311 | Phase stable lead monoxide and process for the production thereof Phase stable lead monoxide powders are disclosed in which substantially pure free flowing PbO having a crystal phase which is homogeneous, and which phase may be selected from either the litharge or massicot forms, retains such phase homogeneity over exte... | 10/12/1993 |
| 5173277 | Methods for processing battery waste and other lead-contaminated materials The present invention is directed to improved methods for processing battery wastes, batter casing debris and other lead contaminated materials. The improved processes of the present invention provide less environmentally stressful methods for recovering ... | 12/22/1992 |
| 5162107 | Method of reprocessing zinc- and lead-containing residues from metallurgical plants by means of a circulating fluidized bed system A zinc- and lead-containing residue from a metallurgical plant is reprocessed by a thermal treatment in a circulating fluidized bed system. A major part of the heat demand is satisfied by a combustion of solid carbonaceous material in the fluidized bed re... | 11/10/1992 |
| 5152973 | Synthesis of submicron powders under reduced oxygen pressure The invention process provides a metal oxide, or oxides of more than one more metal, wherein the oxides have a mean particle size less than 1 micron. The oxides are made by steps including (1) reacting an aqueous solution of a metal salt (or salts) that f... | 10/06/1992 |
| 5149606 | Method of treating a battery electrode with persulfate Improved formation efficiencies for positive pasted plates used in lead-acid batteries are provided by treatment of the positive plates with a stabilized aqueous alkaline persulfate solution to effect the conversion of lead monoxide to lead dioxide. Use o... | 09/22/1992 |
| 5114702 | Method of making metal oxide ceramic powders by using a combustible amino acid compound This invention is directed to the formation of homogeneous, aqueous precursor mixtures of at least one substantially soluble metal salt and a substantially soluble, combustible co-reactant compound, typically an amino acid. This produces, upon evaporation... | 05/19/1992 |
| 5013532 | Method for recycling electric arc furnace dust This invention relates to the metallurgy of iron and particularly to the separation and recovery of metals from electric arc furnace (EAF) dusts. While the invention discloses a process for the separation and recovery applicable to zinc, lead, cadmium and... | 05/07/1991 |
| 4970182 | Method for producing multi-component ceramics Aqueous titanium tetrachloride solution, i.e., one component (X) for forming multi-component ceramic compound, and a suitable amount of zirconium oxynitrate, i.e., another component (Y) are mixed. Hydroxide coprecipitate of Ti4+ and Zr4+ | 11/13/1990 |
| 4921541 | Orthorhombic greenish-tinged lead chromate pigments Orthorhombic greenish-tinged lead chromate pigments containing lead chromate and lead sulfate in a weight ratio of 91:9 to 100:0 and distinguished by a tinctorial strength of 0.053 to 0.066 at a standard depth of color of 1/25 in accordance with DIN 53235... | 05/01/1990 |
| 4861572 | Process for manufacture of metal oxide An improved process for the manufacture of a metal oxide is disclosed. In the process wherein a hydrolyzable organometallic compound is hydrolyzed by an alkaline hydrolyzing agent in an alkaline organic solvent, and thereafter, the metal oxide is formed b... | 08/29/1989 |
| 4853207 | Process for the manufacture of vitreous metal oxides Process for the manufacture of vitreous metal oxides in which a metal alcoholate derived from an alcohol, the pka of which is less than 15.74, is hydrolysed with an aqueous medium, the pH of which is greater than 1.5. The process is applied especially to ... | 08/01/1989 |
| 4829033 | Barium titanate powders Barium titanate based dielectric compositions having the general formula Ba.sub.(1-x-x'-x") Pbx Cax' Srx" Ti .sub.(1-y-y'-y") Sny Zry' Hfy" O3, wherein x, x', x" and y, y', y" re... | 05/09/1989 |
| 4812426 | Lead-containing oxide powder According to the invention a powder of lead-containing oxides and a process for preparing the same for the production of an element for electrical and other applications are provided. The powder is prepared by mixing and calcining a powder of oxides of me... | 03/14/1989 |
| 4755369 | Production of ultrafine particles There is provided a process for producing ultrafine particles by preparing one or more than one kind of alkoxide of a metal which is a component of the desired ultrafine particles, and subsequently hydrolyzing or heating said alkoxide. For the production ... | 07/05/1988 |
| 4678505 | Process for forming solid solutions A continuous process for making a solid solution of two or more metals or metal oxides by ionic reaction and coprecipitation during high intensity mixing.... | 07/07/1987 |
| 4673561 | Process for the manufacture of hydrated oxides and tri- and tetra- basic lead sulphates Process for the manufacture of hydrated lead oxides in the bivalent state characterized by the step of (1) reacting metallic lead with acetic acid (e.g. ammonium acetate, 5%-30% solution) at a temperature up to 200° C. (e.g. 50°-200° C.) under an atmos... | 06/16/1987 |
| 4656706 | Formation efficiency of positive plates of a lead-acid battery The formation efficiency of pasted positive plates of a lead-acid battery is greatly enhanced by providing in situ a layer of lead dioxide (PbO2) on the pasted plate surfaces prior to formation. The PbO2 layer is preferably formed by... | 04/14/1987 |
| 4654077 | Method for the pyrometallurgical treatment of finely divided materials Process and apparatus for pyrometallurgically treating finely divided ores, concentrates, residues, slags and like materials. The process utilizes a reactor having two co-axially extending, vertical reaction chambers. The process comprises forming within ... | 03/31/1987 |
| 4649037 | Spray-dried inorganic oxides from non-aqueous gels or solutions Inorganic metal oxides having high surface area and pore volume are prepared by spray drying. The admixture which is spray dried to yield the metal oxides is produced from reactants comprising at least one hydrolyzable metal compound, a sufficient amount ... | 03/10/1987 |
| 4594301 | Lead-accumulator and active materials used therein An active material for the positive electrode of a lead-accumulator and a lead-accumulator utilizing the active material are provided, the active material consisting of lead oxide as the principal component and at least one component selected from the gro... | 06/10/1986 |
| 4388210 | High surface area lead oxide composite and method for making the same A high surface area lead oxide composite is prepared by providing a mixture of starting matter containing lead oxide and a hydrogen bonding solvent and by then subjecting the mixture to a gaseous stream inclusive of ozone. The resulting reaction product i... | 06/14/1983 |
