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| Number | Title | Issue Date |
| 7087209 | Method for producing a halide brine A method for producing halide brine wherein an alkali and a reducing agent are added to an aqueous fluid having a density greater than 8.30 lb/gal., (0.996 kg/L) water, waste water or sea water for example. The resulting fluid is then contacted with a halogen to for... | 08/08/2006 |
| 6936229 | Recovery of lithium compounds from brines Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine... | 08/30/2005 |
| 6808695 | Process for continuously producing aluminum from clays A process for purifying solid crude aluminum chloride, containing iron impurities, includes the steps of mixing iron with the crude aluminum chloride and reactively subliming and desubliming the mixture. A process for continuous production of metal chlorides include... | 10/26/2004 |
| 6803182 | Gallium complex composition, process for doping silver halide emulsion grains with gallium complex composition, and gallium-doped silver halide emulsion A gallium halide coordination complex is described of the formula (I): [RxNHy]3GaX6 wherein R represents a lower alkyl group of from 1-3 carbon atoms; X is Cl, Br, or I; and x is from 1-3, y is from 1-3... | 10/12/2004 |
| 6733738 | Method and device for the continuous production of NaAlCl4 or NaFeCl4 The invention relates to a method and a device for the production of NADCl4 in which D is aluminium or iron, where, in a first reaction step, a melt of aluminium or iron is reacted with chlorine gas to give gaseous metal halide, and this is subsequently r... | 05/11/2004 |
| 6602482 | Separation of metal chlorides from their suspensions in chlorosilanes A process for separating metal chlorides from a suspension of metal chlorides in chlorosilanes, in which the suspension is filtered under pressure in the absence of air and moisture forming a filter cake, which is granulated and passed to a dissolution zo... | 08/05/2003 |
| 6507020 | Halide compound mass spectrometry method and mass spectrometry apparatus A mass spectrometry apparatus is provided with an emitter for emitting metal ions, a reaction chamber where the detected gas is introduced and ionized by the metal ions, an aperture for guiding molecules of the ionized detected gas, and a mass spectromete... | 01/14/2003 |
| 6436362 | Process for preparing aluminum fluoride Process for preparing aluminum fluoride which comprises fluorination of alumina with gaseous HF, characterized in that the alumina is fluorinated with HF at an initial temperature lower than 300° C., the temperature is raised with a temperature gradient ... | 08/20/2002 |
| 6432392 | Antiperspirant salts, and methods of their preparation An antiperspirant active salt made by treating an aluminum salt of general formula; Al2 (OH)6-a Xa wherein X is Cl, Br or I, and a is 0.3 to 4.0, with an effective amount of a phosphorus containing material, and ageing the salt... | 08/13/2002 |
| 6187280 | Process for the preparation of aluminum fluoride Process for preparing aluminum fluoride having an high surface area and high pore volume comprising the fluorination with HF of alumina having surface area of at least 150 m2 /g and pore volume not lower than 0.3 cc/g, said alumina comprising f... | 02/13/2001 |
| 6153164 | Method for producing uranium oxide from uranium tetrafluoride and a phyllosilicate mineral A method for producing uranium oxide includes combining uranium tetrafluoride and a phyllosilicate mineral containing a solid oxidizing agent within the mineral's structure having a lower thermodynamic stability than the uranium oxide; heating the combina... | 11/28/2000 |
| 6096281 | Method for producing uranium oxide from uranium oxyfluoride A method for producing uranium oxide includes combining uranium oxyfluoride and a solid oxidizing agent having a lower thermodynamic stability than the uranium oxide after "oxide"; heating the combination below the vapor point of the uranium oxyfluoride t... | 08/01/2000 |
| 6004519 | Aluminum promoted hydrogenation of alkylation sludge for aluminum chloride recovery The recovery of aluminum chloride from deactivated alkylation catalyst complexes by hydrogenation using hydrogen gas and an aluminum catalyst is disclosed. Using aluminum to catalyze the hydrogenation allows the reaction to proceed at a lower temperature ... | 12/21/1999 |
| 5918106 | Method for producing uranium oxide and a non-radioactive fluorine compound from uranium tetrafluoride and a solid oxide compound A method for producing uranium oxide includes combining uranium tetrafluoride and a solid oxidizing agent having a lower thermodynamic stability than the uranium oxide; heating the combination below the vapor point of the uranium tetrafluoride to sufficie... | 06/29/1999 |
| 5861133 | Synthetic chalcoalumite compounds and process for producing thereof A synthetic chalcoalumite compound represented by the formula (1) (Zna-x2+ Mx2+)Al43+ (OH)b (An-)c.mH.sub.2 O (1) wherein M2+... | 01/19/1999 |
| 5824227 | Method for removing fluoride from water A process for removing dissolved fluorides from an aqueous stream using at least two reactors wherein the dissolved fluoride containing aqueous feed and an unreacted aluminum containing sludge are combined in the first reactor to give a first reactor admi... | 10/20/1998 |
| 5776496 | Ultrasmall porous particles for enhancing ultrasound back scatter This invention relates to the preparation, composition and applications of suspensions of ultra-small, substantially non-aggregated, non-crystalline particles of predetermined uniform size which, when suspended in a liquid, contain entrapped gaseous bubbl... | 07/07/1998 |
| 5741522 | Ultrasmall, non-aggregated porous particles of uniform size for entrapping gas bubbles within and methods This invention relates to the preparation, composition and applications of suspensions of ultra-small, substantially non-aggregated, non-crystalline particles of predetermined uniform size which, when suspended in a liquid, contain entrapped gaseous bubbl... | 04/21/1998 |
| 5725836 | Method of forming particles using a supercritical fluid, aerogel particles formed thereby, and antiperspirants containing aerogel particles A method for providing aerogels, and aerogels produced according to the method, is described. As one aspect, antiperspirant compounds that are in aerogel form, and antiperspirant and deodorant compositions including such salts, are described. The method i... | 03/10/1998 |
| 5683669 | Metal chloride generator and improved process for the production of metal chlorides used in the manufacture of titanium dioxide by the chloride process In the preparation of metal chlorides from their elements to be used as additives in processes of making titanium dioxide by the chloride process, a titanium tetrachloride stream is directed to sweep over the lined inner wall of a metal chloride generator... | 11/04/1997 |
| 5625054 | DNA purification by solid phase extraction using fluorinated celite The present invention relates to fluorinated surfaces which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the surface. Generally, the hydrophilic and elec... | 04/29/1997 |
| 5460795 | Crystalline phases of AlFk (OH)3-k and HAlF4 New crystalline phases of the fluoroaluminum compound AlFk (OH)3-k and processes for their preparation and conversion to conventional phases, as well as isolation of solid HAlF4 are disclosed.... | 10/24/1995 |
| 5438129 | DNA purification by solid phase extraction using partially fluorinated aluminum hydroxide adsorbant The present invention relates to fluorinated surfaces which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the surface. Generally, the hydrophilic and elec... | 08/01/1995 |
| 5393509 | Crystalline phases of Alfk (OH)3-k and HAlF4 New crystalline phases of the fluoroaluminum compound AlFk (OH)3-k and processes for their preparation and conversion to conventional phases, as well as isolation of solid HAlF4 are disclosed.... | 02/28/1995 |
| 5300273 | Process for producing a vapor mixture of titanium tetrachloride and aluminum trichloride An improved process is provided for producing titanium tetrachloride vapor admixed with a desired particular amount of aluminum trichloride vapor for use in the production of rutile titanium dioxide. The vapor mixture is derived from a titanium tetrachlor... | 04/05/1994 |
| 5286473 | Process for the production of hydrogen In accordance with the invention an alkali metal is reacted with an ionizable hydrogen compound selected from the group consisting of hydrochloric acid, water or mixtures thereof to produce hydrogen and an alkali metal chloride or alkali metal hydroxide, ... | 02/15/1994 |
| 5277889 | Method for depositing pure metal halide compositions Metal halide compositions of enhanced purity are produced by vapor phase deposition via reactions involving organometallic starting materials in a process wherein a carbon getter is provided in the reaction zone and/or adjacent the developing metal halide... | 01/11/1994 |
| 5268337 | Ceramic oxide powders and the formation thereof Ceramic oxide powders and a method for their preparation. Ceramic oxide powders are obtained using a flame process whereby two or more precursors of ceramic oxides are introduced into a counterflow diffusion flame burner wherein said precursors are conver... | 12/07/1993 |
| 5075092 | Process for preparation of silane A process for continuously preparing silane and a coproduct by reacting a metal hydride such as NaAlH4 with a silicon halide such as SiF4, utilizing, in conducting the reaction, equipment which includes, in series, a primary reactor,... | 12/24/1991 |
| 4997454 | Method for making uniformly-sized particles from insoluble compounds The invention involves a method for making uniformly sized particles from solid compounds. First, a suitable solid compound is dissolved in a suitable solvent. Then, a precipitating liquid is infused, precipitating non-aggregated particles with substantia... | 03/05/1991 |
| 4956159 | Process for recovering gallium trichloride from gallium-containing waste Gallium-containing waste is chlorinated in the presence of gallium trichloride from the beginning. By this procedure, gallium is more efficiently chlorinated and gallium trichloride is more easily separated from other chlorides and recovered.... | 09/11/1990 |
| 4925454 | Aluminum chloride granules and process to obtain them A process for obtaining essentially cone-shaped aluminum chloride granules free of fines from a gas current containing aluminum chloride, comprising contacting said gas current with a surface whose temperature is below about 70° C. to deposit the aluminu... | 05/15/1990 |
| 4919913 | Process for the production of solar silicon The process for producing silicon suitable for use in solar cells is improved by reacting a gaseous silicon compound with aluminum wherein a finely dispersed molten surface of pure aluminum or an aluminum/silicon alloy is intensively contacted with the ga... | 04/24/1990 |
| 4910009 | Ultra high purity halides and their preparation The process for purifying a contaminated chloro, bromo or iodo precursor salt of zirconium, hafnium or aluminum by means of providing a molten thermal body of one or more alkali or alkaline earth metal halides and the precursor salt containing impurities,... | 03/20/1990 |
| 4900521 | Process for purifying aluminum chloride A process for purifying anhydrous aluminum chloride containing organochlorine impurities, comprising contacting said impure aluminum chloride with a bath containing at least one chloroaluminate for a time sufficient to remove said impurities therefrom and... | 02/13/1990 |
| 4891204 | Purification of aluminum chloride Aluminium chloride contaminated with iron chloride is purified by contacting it in vapor form with a bed of particles of aluminium metal interspersed with particles of a chemically inert material. The efficiency of the process may be maintained by acid tr... | 01/02/1990 |
| 4853205 | Supercritical fluid metal halide separation process Process of using supercritical fluid to selectively separate, purify and recover metal halides.... | 08/01/1989 |
| 4847061 | Process for preparation of silane A continuous method for preparing silane and a co-product by reacting a metal hydride such as NaAlH4 with a silicon halide such as SiF4. The method involves a reactor loop comprising a primary reactor, a secondary reactor and a separ... | 07/11/1989 |
| 4832934 | Process for preparing halogen magnesium alanate and use thereof The present invention relates to [Mg2 X3 (Ether)y]+ [AlH4 ]- in which X is halogen, ether is an aliphatic or cyclic ether, and y is from 0 to 6.... | 05/23/1989 |
| 4778668 | Preparation of silane and metal aluminum halide co-product Silicon halides and silicon hydrohalides, such as SiCl4, SiBr4, and SiHCl3 react with alkali metal aluminum hydrides such as NaAlH4 and LiAlH4 in the presence of a hydrocarbon reaction medium; e.g., t... | 10/18/1988 |
