Bizarre Patents
Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8147781 | Recovering metal values from a metalliferrous material There is provided a method of treating a metalliferrous material, comprising providing a metalliferrous material including at least one target metallic element, solubilising the metalliferrous material so as to effect production of an intermediate product including ... | 04/03/2012 |
| 7291577 | Hydrometallurgical process for production of supported catalysts A process for the production of a supported catalyst. The process comprises heating a slurry that comprises a catalyst support and at least one active catalytic ingredient precursor. Gas is introduced to the slurry at a sufficient pressure to reduce the at least one... | 11/06/2007 |
| 7220676 | Roll-off reducing agent A roll-off reducing agent comprising one or more compounds selected from the group consisting of carboxylic acids having 2 to 20 carbon atoms having either OH group or groups or SH group or groups, monocarboxylic acids having 1 to 20 carbon atoms, and dicarboxylic a... | 05/22/2007 |
| 7090809 | Production of aluminum compounds and silica from ores A method for the production of inorganic aluminum substances and amorphous silica from aluminum oxide containing ores, comprising: (a) leaching of said ores with fluorosilicic acid to obtain aluminum fluosilicate solution; (b) filtering said leached solution from in... | 08/15/2006 |
| 7001866 | Modification of the pore structure of metal oxide and mixed metal oxide supports for catalysts synthesis A porous catalyst support having an increased average pore size is produced from a mixed metal oxide material. In accordance with one embodiment, a method for preparing a mixed metal oxide material includes providing a mixed metal oxide precursor containing at least... | 02/21/2006 |
| 6627165 | Process for upgrading a titaniferous material containing silica A process for upgrading of titaniferous material containing silica, including pretreating the titaniferous material by alkaline leaching to precipitate the silica as an aluminosilicate which is amenable to further leaching. Subsequently, the pretreated ti... | 09/30/2003 |
| 6608001 | Catalyst and method of making micrometer sized spherical particles A method for producing small spherical particles that are especially useful as catalysts and catalyst supports employed in chemical processes is disclosed. According to some embodiments, the method includes impregnating a porous support with a metal or me... | 08/19/2003 |
| 6596252 | Recycling of spent pot linings A process is described for the treatment of spent pot lining material from electrolyte reduction cells, this spent material having a substantial content of cryolite. The spent material is first leached with water at a dilution and a time sufficient to dis... | 07/22/2003 |
| 6576204 | Process for the production of alumina A process for the production of alumina is performed by dissolving gibbsite Al2 O3.3H.sub.2 O in nitric acid to provide an acid solution containing aluminum nitrate; decomposing the acid solution at 300-700° C. with a free air suppl... | 06/10/2003 |
| 6468483 | Process for treating alumina-bearing ores to recover metal values therefrom A method for processing alumina-bearing ores such as bauxite to recover iron, aluminum, silicon and titanium metal values therefrom the method comprising the steps of adding the alumina-bearing ores to a digester containing an acid to provide a mixture of... | 10/22/2002 |
| 6451273 | Method of producing an active mineral liquid from granite A method of extracting active mineral liquid from a rock such as granite is described. This method comprises charging an extraction vessel with finely divided granite at ambient temperature and pressure; introducing an aqueous ammonia solution with agitat... | 09/17/2002 |
| 6447738 | Coproducing alumina, iron oxide, and titanium-dioxide from aluminum ore bodies and feedstocks A process for the extraction of alumina, iron oxide and titanium dioxide from bauxite ore and clays, and other ore bodies and feedstocks. The process starts by sulfuric acid leaching of the feedstocks in pressure autoclaves at about 200° C. and appropria... | 09/10/2002 |
| 6284207 | Process for producing high surface area material by controlled leaching of blast furnace slag A material with high surface area can be obtained through the partial or total removal of CaO and MgO by acid leaching of blast furnace slag. This is accomplished by an improved process for selective leaching of blast furnace slag and other solid solution... | 09/04/2001 |
| 6248302 | Process for treating red mud to recover metal values therefrom A method for processing red mud to recover iron, aluminum, silicon and titanium metal values therefrom the method comprising the steps of adding the red mud to a digester containing an acid to provide a mixture of acid and red mud and heating the mixture ... | 06/19/2001 |
| 6231822 | Recovering chloride and sulfate compounds from spent potliner A method of recovering chloride and sulfate salts from spent potliner using acid digestion.... | 05/15/2001 |
| 6217840 | Production of fumed silica A method for producing fumed silica and a fluorine-containing product from a source of silica in solid form and a solid material containing fluorine, the solid material selected from the group consisting of sodium aluminum tetrafluoride, cryolite, aluminu... | 04/17/2001 |
| 6217836 | Recovering carbon, silica and alumina from spent potliner Spent potliner from aluminum reduction cells is treated, for example, with sulfuric acid to recover carbon, silica and alumina or to recover a vitrified product of silca and alumina.... | 04/17/2001 |
| 6193944 | Method of recovering fumed silica from spent potliner Spent potliner from an aluminum reduction cell is subject to an acid digest and the digest may be adjusted to produce a first gas component comprised of at least one material selected from the group consisting of silicon tetrafluoride, hydrogen fluoride, ... | 02/27/2001 |
| 6187275 | Recovery of AlF3 from spent potliner A method of recovering AlF3 from spent potliner using an acid digest to form gaseous HF which is converted to hydrofluoric acid and reacted with alumina trihydrate to form AlF3.... | 02/13/2001 |
| 6153157 | Value improvements of clays A process which allows the conversion of clay minerals of the kalonite group, to a relatively pure form of alumina and silica respectively comprising the steps of (a) heating the kaolinite group minerals to greater than 500° C., which causes dehydroxylat... | 11/28/2000 |
| 6123908 | Method of treating spent potliner material from aluminum reduction cells A process of treating spent potliner material from aluminum reduction cells and recovering useful products. In the process of the present invention, spent potliner material is introduced into an acid digester containing, for example, sulfuric acid. As a r... | 09/26/2000 |
| 6110434 | Recovery of products from non-metallic products derived from aluminum dross A process for recovering one of alumina hydrate, magnesium hydroxide and magnesium aluminate spinel (MgAl2 O4) from aluminum dross wherein the dross is processed to a non-metallic product (NMP). The dross may contain fluxing salts wh... | 08/29/2000 |
| 6110433 | Process for the recovery of metals from used nickel/metal/rare earth hydride storage batteries The invention relates to a process for recovering metals from used nickel/hydride storage batteries, in which storage battery scrap has been mechanically comminuted and divided into at least a coarse fraction and a fine fraction capable of being treated s... | 08/29/2000 |
| 5997828 | Process for production of alumina from ore bodies containing aluminum A process for extraction of alumina from ore bodies containing aluminum is disclosed. The process comprises the steps of acid leaching an aluminum bearing ore to produce a leach liquor that includes aluminum values and silicon values. Any ferrous sulfate ... | 12/07/1999 |
| 5993758 | Process for recovery of alumina and silica A process for the simultaneous recovery of substantially pure alumina and silica from an aluminosilicate. The process comprises the following steps: (i) heating the aluminosilicate with hydrated CaCl2 to obtain calcium-alumino-silicate and calc... | 11/30/1999 |
| 5955042 | Method of treating spent potliner material from aluminum reduction cells A process for treating spent potliner material from aluminum reduction cells and recovering useful products. In the process, spent potliner material is introduced into an acid digester containing, for example, sulfuric acid. A gas component is produced wh... | 09/21/1999 |
| 5939035 | Process for treating spent potlining containing inorganic matter The present invention relates to a process for reducing and/or removing inorganic matter from a material containing inorganic matter which comprises the steps of: (i) (a) treating the material with a source of hydrogen fluoride so as to form a first resid... | 08/17/1999 |
| 5904856 | Process for the preparation of aluminum salt solutions The present invention relates to a process for the preparation of solutions of aluminum salts, characterized in that an aluminate of an alkali metal and/or alkaline earth metal is dissolved in an acid solution to the formation of a solution which is used ... | 05/18/1999 |
| 5888404 | Method for treating waste water sludge The invention relates to a method for treating waste water sludge comprising at least one metal originating from a waste water treatment coagulant, and phosphorus and heavy metals in order to recover said at least one metal and phosphorus and to discharge... | 03/30/1999 |
| 5843861 | Process for the synthesis of kaolin clays having varying morphological properties Substantially crystalline kaolin clays having varying morphological properties are produced by the hydrothermal treatment, in an acidic environment, of substantially amorphous calcined kaolin clay.... | 12/01/1998 |
| 5830818 | Process for the microwave beneficiation of discolored kaolin clay materials Kaolin clay materials containing discoloring impurities can be beneficiated by microwave irradiation in the presence of water and a polyprotic acid component to produce a beneficiated kaolin clay material having improved color and brightness.... | 11/03/1998 |
| 5800716 | Processes for the treatment of acidic liquors and for the production of commercial products thereby A process for the treatment of aqueous acidic liquors containing dissolved aluminum and/or iron compounds to produce an aluminum and/or iron sulfate water-treatment product is characterized by the combination of steps comprising contacting the liquor with... | 09/01/1998 |
| 5575981 | Method for acidic leaching of lateritic ores The invention provides an autoclave configuration for pressure leaching lateritic ores at elevated temperatures. The autoclave configuration includes at least one primary autoclave. The primary autoclave includes a slurry inlet port for receiving slurries... | 11/19/1996 |
| 5558847 | Process for recovering aluminium and fluorine from fluorine containing waste materials Aluminum and fluorine are recovered from fluorine containing waste materials from the production of aluminum metal (FCWM) as ALF2 OH hydrate by a process comprising: leaching FCWM with dilute sulphuric acid at a pH value within the range of 0-3... | 09/24/1996 |
| 5518660 | Aqueous colloidal dispersions of sub-micrometer alumina particles An aqueous alumina dispersion prepared from high quality, submicrometer alumina powder, suitable for manufacturing fine ceramic products, is disclosed. The sub-micrometer alumina particles have a surface area of 2.5 to 50 m2 per gram of the alu... | 05/21/1996 |
| 5431892 | Process for recovering valuable metal from waste catalyst A process for recovering valuable metals from a waste catalyst based on an alumina carrier includes (a) roasting the waste catalyst at a temperature range of 400° to 1,000° C. to obtain a roasted product; (b) preparing a reduction dissolution by dissolv... | 07/11/1995 |
| 5415849 | Process for dissolving used catalyst A process for dissolving used catalyst includes the steps of roasting, after subjecting to an optional deoiling treatment, the used catalyst at a temperature lower than 1,000° C. but not lower than the temperature at which any of the residual components ... | 05/16/1995 |
| 5364603 | Mercury-free dissolution of aluminum-clad fuel in nitric acid A mercury-free dissolution process for aluminum involves placing the aluminum in a dissolver vessel in contact with nitric acid-fluoboric acid mixture at an elevated temperature. By maintaining a continuous flow of the acid mixture through the dissolver v... | 11/15/1994 |
| 5352419 | Recovery of aluminium and fluoride values from spent pot lining Process for the recovery of aluminum and fluoride values from spent pot lining materials comprising the steps of calcining spent pot lining material to produce an ash having environmentally acceptable levels of cyanide contamination, subjecting the ash to... | 10/04/1994 |
| 5278069 | Bioleaching method for the extraction of metals from coal fly ash using thiobacillus A bioleaching process is utilized for the extraction of metals from coal fly ash (CFA). The CFA is suspended in an acidic sea water based culture medium and the suspension is incubated with a microorganism culture comprising at least one strain of Thiobac... | 01/11/1994 |
