Perhalate Or Perhalic Acid Patents (Class 423/476)
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Patent number: 10570013Abstract: Embodiments of the invention relate to methods and systems for producing ammonium perchlorate.Type: GrantFiled: October 23, 2017Date of Patent: February 25, 2020Assignee: MALVI TECHNOLOGIES, LLCInventor: Vinod Malhotra
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Patent number: 9090979Abstract: Disclosed is a method for producing perchlorate, which comprises: an electrolytic step (S1) wherein an electrolysis vessel (2), in which a positive electrode side (4A) on which a positive electrode (4) is arranged and a negative electrode side (5A) on which a negative electrode (5) is arranged are divided by a cation-exchange membrane (6), is used and an aqueous solution of sodium chlorate is electrolytically oxidized on the positive electrode side (4A) of the electrolysis vessel (2); a neutralization reaction step (S2) wherein a substance an aqueous solution of which shows alkalinity is added to the aqueous perchloric acid solution that has been produced by the electrolytic oxidation on the positive electrode side, so that perchlorate is synthesized by a neutralization reaction; and a crystallization process wherein the perchlorate synthesized by the neutralization reaction is obtained as crystals.Type: GrantFiled: March 26, 2010Date of Patent: July 28, 2015Assignee: IHI CORPORATIONInventors: Junichi Okuyama, Kumiko Yoshihisa, Yasunori Hamano, Takahiro Matsuo, Nobuhiko Kubota, Kazuo Uematsu, Muneo Ayabe
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Publication number: 20140328887Abstract: The present application discloses a method of making a surface antimicrobial by coating or forming a surface with a silver (I) periodate as well as articles of manufacture comprising a silver (I) periodate. The present application also discloses a method of preventing or reducing microbial contamination on a substrate by coating the substrate with at least one silver (I) periodate. The substrate can be a wound dressing, a medical instrument, a medical device, a metallic article, a plant or a seed.Type: ApplicationFiled: August 22, 2012Publication date: November 6, 2014Applicant: Innovotech, Inc.Inventors: Merle E. Olson, Patricia Nadworny, Amin M. Omar, Yanira E. Cabrera
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Publication number: 20120328713Abstract: The invention pertains to methods and compositions for preventing or reducing microbial contamination using a silver (III) periodate as antimicrobial active hi a preferred embodiment the silver (III) periodate is used in a coating upon a medical device or implant to confer coating uniformity and antimicrobial efficacy. Also provided is a method of synthetising a silver (III) periodate in high yield by heating a source of single valency silver ions in water and subsequently combining it with a heated solution comprising persulfate, a by droxide, and a periodate.Type: ApplicationFiled: December 14, 2010Publication date: December 27, 2012Inventors: Merle E Olson, Nick Allan, Amin Mousa Omar, Justin J Anderson, Patricia L Nadworny, Michael W Harding
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Publication number: 20120141745Abstract: A chiral liquid crystal precursor composition which comprises at least one salt that changes a position of the selective reflection band exhibited by the composition in a cured state compared to the position of a selective reflection band exhibited by a composition in the cured state that does not contain the at least one salt. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.Type: ApplicationFiled: December 7, 2011Publication date: June 7, 2012Applicant: SICPA HOLDING SAInventors: Andrea CALLEGARI, Tristan JAUZEIN
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Publication number: 20120107210Abstract: The invention generally relates to methods of selectively removing lithium from various liquids, methods of producing high purity lithium carbonate, methods of producing high purity lithium hydroxide, and methods of regenerating resin.Type: ApplicationFiled: November 28, 2011Publication date: May 3, 2012Applicant: Simbol Mining Corp.Inventors: Stephen Harrison, Robert Blanchet
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Publication number: 20120100056Abstract: The invention generally relates to methods of selectively removing lithium from various liquids, methods of producing high purity lithium carbonate, methods of producing high purity lithium hydroxide, and methods of regenerating resin.Type: ApplicationFiled: November 28, 2011Publication date: April 26, 2012Applicant: Simbol Mining Corp.Inventors: Stephen Harrison, Robert Blanchet
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Publication number: 20120020871Abstract: The invention relates to a method of manufacturing a perchlorate including an electrolysis process (S1) in which, using an electrolysis tank (2) in which an anode section (4A) provided with an anode (4) and a cathode section (5A) provided a cathode (5) are divided by a cation exchange membrane (6), an aqueous solution of sodium chlorate is electrolytically oxidized in the anode section, a neutralization reaction process (S2) in which a substance that becomes alkaline when dissolved in water is added to the aqueous solution of perchloric acid in the anode section, which has been generated by the electrolytic oxidation, so as to synthesize a perchlorate by a neutralization reaction, and a crystallization method in which the perchlorate synthesized by the neutralization reaction process is formed into crystals, in which the crystallization method includes a crystallization method composed of three processes of an evaporation and crystallization process (S3) or an evaporation and concentration process (S21), a coType: ApplicationFiled: March 26, 2010Publication date: January 26, 2012Inventors: Junichi Okuyama, Kumiko Yoshihisa, Yasunori Hamano, Takahiro Matsuo, Nobuhiko Kubota, Kazuo Uematsu, Muneo Ayabe
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Publication number: 20110275518Abstract: The present invention is compositions and methods for improving seed germination rates or speed using a composition comprising at least one high valency silver ion. The compositions and methods of the present invention are effective in treating biofilms.Type: ApplicationFiled: June 9, 2008Publication date: November 10, 2011Inventors: Lyriam L. Marques, Merle E. Olson, Michael W. Harding
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Publication number: 20110200508Abstract: The invention generally relates to methods of selectively removing lithium from various liquids, methods of producing high purity lithium carbonate, methods of producing high purity lithium hydroxide, and methods of regenerating resin.Type: ApplicationFiled: February 17, 2011Publication date: August 18, 2011Applicant: Simbol Mining Corp.Inventors: Stephen Harrison, Robert Blanchet
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Patent number: 7794579Abstract: A process for the production of chlorates and derivative chemicals from ammonium perchlorate as a starting material. Ammonia is produced in a first step wherein a metal hydroxide is reacted with ammonium perchlorate to produce ammonia and a metal perchlorate. If the metal hydroxide used is sodium hydroxide, sodium perchlorate is formed. The ammonia generated is recovered and sent to a reformer to produce hydrogen which is used to fuel a fuel cell that generates water and electrical energy to run an electrochemical reactor where the metal perchlorate is converted to a metal chlorate and derivative chemicals.Type: GrantFiled: October 12, 2007Date of Patent: September 14, 2010Assignee: G.D.O.Inventors: Steve J. Schmit, Duane A. Goetsch
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Patent number: 7572389Abstract: The present invention is a stabiliser composition for halogen-containing polymers, comprising a salt of a halogen-containing oxy acid and an inorganic or organic acid or an inorganic base. The present invention relates also to a process for the preparation of such stabiliser compositions and to halogen-containing polymers comprising such stabiliser compositions.Type: GrantFiled: April 12, 2005Date of Patent: August 11, 2009Assignee: Baerlocher GmbHInventors: Stefan Fokken, Jürgen Hauk, Manfred Weigl
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Patent number: 7179439Abstract: It is provided that a method for preparing disodium paraperiodate, characterized in that a pH of a reaction mixture which is obtained by reacting sodium iodate, iodic acid or a mixture thereof with sodium hypochlorite using sodium hydroxide is adjusted to the range between 5 and 10.Type: GrantFiled: March 19, 2003Date of Patent: February 20, 2007Assignee: Sumitomo Chemical Company, LimitedInventor: Kouji Yoshikawa
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Patent number: 7179400Abstract: The invention is a stabilizer composition for halogen-containing polymers, comprising a carrier material of the general formula CaxAl2(OH)2(x+2)HPO3.m H2O, wherein x is a number from 2 to 12 and m is a number from 0 to 12, and a salt of a halogen-containing oxy acid or a mixture of two or more such salts, at least one salt of a halogen-containing oxy acid being present in finely distributed form on the carrier material, to a process for the preparation thereof, and to the use thereof.Type: GrantFiled: May 26, 2005Date of Patent: February 20, 2007Assignee: Baerlocher GmbHInventors: Bernd Frischkemuth, Christian Helbig
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Patent number: 6890453Abstract: The present invention is a stabiliser composition for halogen-containing polymers, comprising a salt of a halogen-containing oxy acid and an inorganic or organic acid or an inorganic base. The present invention relates also to a process for the preparation of such stabiliser compositions and to halogen-containing polymers comprising such stabiliser compositions.Type: GrantFiled: November 21, 2003Date of Patent: May 10, 2005Assignee: Baerlocher GmbHInventors: Stefan Fokken, Jürgen Hauk, Manfred Weigl
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Patent number: 6800203Abstract: A method is described to decompose perchlorate in a FeCl3/HCl aqueous solution such as would be used to regenerate an anion exchange resin used to remove perchlorate. The solution is mixed with a reducing agent, preferably an organic alcohol and/or ferrous chloride, and can be heated to accelerate the decomposition of perchlorate. Lower temperatures may be employed if a catalyst is added.Type: GrantFiled: May 29, 2002Date of Patent: October 5, 2004Assignee: U.T. BattelleInventors: Baohua Gu, David R. Cole, Gilbert M. Brown
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Publication number: 20040179991Abstract: A method of extracting a halide and sulphate from an aqueous sulphate solution, such as a zinc sulphate solution, comprises subjecting the solution to solvent extraction to extract halide and sulphate from the solution and controlling the amount of sulphate extracted by selective adjustment of the acidity of the aqueous solution.Type: ApplicationFiled: March 10, 2003Publication date: September 16, 2004Applicant: TECK COMINCO METALS LTD.Inventors: Cashman R. S. Mason, Juris R. Harlamovs, David B. Dreisinger, Baruch Grinbaum
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Patent number: 6620928Abstract: The invention pertains to a process for the regeneration and recovery of periodate from a spent iodate solution, by reacting the iodate with at least an equimolar amount of peroxosulfate. The regenerated periodate is especially suitable for oxidizing carbohydrates to dialdehyde carbohydrates. The oxidation and regeneration can also be carried out in a single stage using a catalytic amount of periodate only.Type: GrantFiled: December 13, 2001Date of Patent: September 16, 2003Assignee: SCA Hygiene Products Zeist B.V.Inventor: Arie Besemer
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Patent number: 6613926Abstract: Novel compounds are provided in the form of nucleoside pyrophosphate and triphosphate analogs. In these analogs, the pyrophosphate or triphosphate group is replaced with a moiety that is isosterically and electronically identical thereto, but is hydrolytically and enzymatically more stable. The compounds are useful as therapeutic agents, e.g., as antiviral agents, anticancer agents, metabolic moderators and the like. The invention also provides pharmaceutical compositions containing a compound of the invention as an active agent, and in addition provides methods of treating disease, including viral infections, cancer, bacterial infections, inflammatory and/or autoimmune diseases, and the like, by administering a compound of the invention to a patient in need of such treatment.Type: GrantFiled: November 1, 2000Date of Patent: September 2, 2003Assignee: SRI InternationalInventors: Jeffrey C. Bottaro, Robert J. Schmitt, Mark A. Petrie, Paul E. Penwell
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Patent number: 6538132Abstract: The invention pertains to a process for the regeneration and recovery of periodate from a spent iodate solution, by reacting the iodate with at least an equimolar amount of hypohalite, and carrying out the recovery in the presence of a water-miscible organic solvent or potassium ions or divalent metal (especially calcium) ions. The regenerated periodate is especially suitable for oxidising carbohydrates to dialdehyde carbohydrates.Type: GrantFiled: December 6, 2001Date of Patent: March 25, 2003Assignee: SCA Hygiene Product Zeist B.V.Inventors: Arie Cornelis Besemer, Jan Matthijs Jetten
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Publication number: 20020072599Abstract: The invention pertains to a process for the regeneration and recovery of periodate from a spent iodate solution, by reacting the iodate with at least an equimolar amount of peroxosulfate. The regenerated periodate is especially suitable for oxidizing carbohydrates to dialdehyde carbohydrates. The oxidation and regeneration can also be carried out in a single stage using a catalytic amount of periodate only.Type: ApplicationFiled: December 13, 2001Publication date: June 13, 2002Inventor: Arie Besemer
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Patent number: 6017506Abstract: Process for the preparation of a sodium paraperiodate wherein an iodine compound is converted into the sodium paraperiodate in the presence of Na.sup.+ ions by means of an alkali metal hydroxide and an alkali metal hypochlorite. The iodine compound is applied in the form of an iodine-containing mixture in which besides the iodine compound in the form of I.sub.2, iodide or iodate compounds, one or more compounds chosen from the group of chlorides, bromides, sulphates, sulphites, carbonates, bicarbonates, nitrates and dissolved organic components are also present. The invention also relates to the preparation of sodium metaperiodate and other alkali and alkali earth metal periodates, wherein the sodium paraperiodate obtained is converted into sodium periodate or into an alkali or alkali earth metal periodate by means of an acid or an alkali and alkali earth metal salt at an elevated temperature. The acid used preferably is HNO.sub.3.Type: GrantFiled: October 29, 1998Date of Patent: January 25, 2000Assignee: DSM N.V.Inventors: Antonius L. B. Dijt, Wilhelmus R. M. Martens, Johan T. Tinge, Jan C. Wisse, Rudolf M. Eder
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Patent number: 5382265Abstract: A process for removing perchlorate ion from waste water using KCl is disclosed. In the process, waste perchlorate is concentrated by water evaporation in a stripping tower. Ammonia and volatile organics are removed during the concentrating step. Potassium chloride (KCl) is added to the concentrated perchlorate solution to form potassium perchlorate (KClO.sub.4), and the reaction mixture is cooled to effect crystallization of the potassium perchlorate. The crystallization liquor is removed by centrifuge or filter press and may be further treated as part of an overall waste water treatment system.Type: GrantFiled: October 26, 1993Date of Patent: January 17, 1995Assignee: Thiokol CorporationInventor: Glenn L. Mower
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Patent number: 5346512Abstract: A process for treating reclaimed ammonium perchlorate with carbon to produce rounded particles upon recrystallization is disclosed. In the process, a recovered ammonium perchlorate solution is contacted with activated carbon, preferably by passage through a packed column. Contamination that modifies the ammonium perchlorate crystal habit and causes rhombic-shaped ammonium perchlorate particles is removed by activated carbon. The carbon-treated ammonium perchlorate solution produces rounded AP particles upon recrystallization with mechanical agitation.Type: GrantFiled: August 5, 1993Date of Patent: September 13, 1994Assignee: Thiokol CorporationInventors: Kathryh F. Miks, Dennis J. Fife, Steven J. Bradley
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Patent number: 5063041Abstract: The invention relates to a process for the reduction of the perchlorate content in electrolytes for chlorate production, whereby the electrolyte is subjected to the following process steps:a) a part of the flow of an electrolyte leaving the chlorate process is evaporated at an elevated temperature of from 30.degree. to 110.degree. C. and/or at a reduced pressure to a reduction in liquid volume of from 1 to 4 times,b) the product from the previous step is cooled to a temperature of from 30.degree. to 0.degree. C.,c) to the product from the previous step is added a potassium chloride solution with a concentration of at least 1.0 mole/l up to the saturation concentration,d) the product from the previous step is relieved of solid phase and recirculated to the chlorate process.Type: GrantFiled: December 27, 1989Date of Patent: November 5, 1991Assignee: Eka Nobel ABInventor: Carl J. F. Wanngard
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Patent number: 5009754Abstract: The objectionable hypochlorite values, ClO.sup.- ions, contained in a solution of an alkali metal perchlorate produced by the electrolysis of an aqueous solution of the corresponding chlorate of the alkali metal, are effectively destroyed (consumed) without adversely affecting the valence state of the hexavalent chromium values also contained therein, by intimately contacting such perchlorate solution with an effective amount of hydrogen peroxide such that the molar ratio available hydrogen peroxide/hypochlorites is at least one.Type: GrantFiled: February 22, 1990Date of Patent: April 23, 1991Assignee: AtochemInventor: Christian Pralus
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Patent number: 4990325Abstract: A low temperature method of producing beryllium chloride dietherate through the addition of hydrogen chloride gas to a mixture of beryllium metal in ether in a reaction vessel is described. A reflux condenser provides an exit for hydrogen produced form the reaction. A distillation condenser later replaces the reflux condenser for purifying the resultant product.Type: GrantFiled: November 22, 1989Date of Patent: February 5, 1991Assignee: The Babcock & Wilcox CompanyInventors: Charles Bergeron, John E. Bullard, Evan Morgan
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Patent number: 4854982Abstract: Liquid ammonia is maintained at the required operating conditions to efficiently and rapidly achieve propellant demilitarization including recovery of ammonia perchlorate (AP) for reuse, by an environmentally safe method to comminute and remove propellant from existing rocket motor hardware. The method is also applicable to both solid and ground composite propellant which includes scrap or waste propellant. A disclosed demilitarization unit employed in the ammonium perchlorate recovery method is comprised of a supply and high pressure spray system for liquid ammonia, an extraction system, oxidizer recovery system, and an ammonia recovery, drying, and recycling system. The method is workable at ambient temperature since ammonia is liquified under its own vapor pressure at 114 psig; however, increased temperature further enhances the extraction efficiency of the system.Type: GrantFiled: January 31, 1989Date of Patent: August 8, 1989Assignee: The United States of America as represented by the Secretary of the ArmyInventors: William S. Melvin, James F. Graham
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Patent number: 4849201Abstract: A process for preparing chlorinated lime solid having an available chlorine ontent in the range of about 30 to about 50 weight percent by contacting a chlorine source, e.g., liquid chlorine, with a basic calcium-containing substance, e.g., hydrated lime, in the presence of water or aqueous calcium chlorine at a pH to produce an aqueous slurry having available chlorine content in the range of about 13 to 17 weight percent and a pH in the range of about 10.6 to 10.9 and containing an aqueous solution and a chlorinated lime precipitate combined with separating said slurry into an aqueous solution and a chlorinated lime precipitate having less than about 40 to 50 percent water combined with drying said chlorinated lime precipitate to produce chlorinated lime solid having the desired available chlorine content is disclosed.Type: GrantFiled: September 2, 1988Date of Patent: July 18, 1989Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Russell K. Smith, Edward R. Zamejc, James F. Miller
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Patent number: 4698106Abstract: Solid oxidizer particles of ultrahigh surface area are produced by an etching process which includes employing selective extractants in a process which causes the formation of indentations and/or cavities on the surfaces of the oxidizer particles, and crevasses and tunnels in the oxidizer particles. The method is particularly attractive for manufacturing ultrahigh surface area ammonium perchlorate which has limited solubility in the extractants ethanol, butanol, or a mixture of these extractants.Type: GrantFiled: December 16, 1971Date of Patent: October 6, 1987Assignee: The United States of America as represented by the Secretary of the ArmyInventor: David C. Sayles
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Patent number: 4472362Abstract: Crystalline 2-layer lithium aluminate, especially when carried in an ion exchange resin, is regenerated for use as an extractor for Li.sup.+ values in aqueous solution, said regeneration being done by using an aqueous wash containing at least about 800 ppm Li.sup.+ ion.Type: GrantFiled: August 30, 1982Date of Patent: September 18, 1984Assignee: The Dow Chemical CompanyInventor: John L. Burba, III
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Patent number: 4335091Abstract: Hydroxylammonium perchlorate is obtained by reacting a perchlorate-free hydroxylammonium salt with a perchlorate ions-donating compound, the reaction being carried out in aqueous solution with the aid of a cation exchanger, in parallel flow or preferably in countercurrent direction. The hydroxylammonium perchlorate is obtained in a high yield and in a high purity. It is suitable as oxidant in fuels.Type: GrantFiled: July 9, 1981Date of Patent: June 15, 1982Assignee: Riedel-de Haen AktiengesellschaftInventors: Eugen Scholz, Wolfgang Sievert
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Patent number: 4216191Abstract: The present invention is directed to a method of preparing an inorganic-alkali metal salt of the formula:ZYwherein Z is an alkali metal selected from the group consisting of lithium and sodium, and wherein Y is an inorganic radical selected from the group consisting of SCN, CN, CNS, OCN, Br, I, Cl, NO.sub.2, NO.sub.3, ClO.sub.4, ReO.sub.4, and CF.sub.3 SO.sub.3. The method involves the reaction of a nitrogen-containing compound of the formula:QHYwherein Q is selected from the group consisting of specified nitrogen-containing groups, and wherein H is hydrogen and Y is as defined above, with an alkali metal compound of the formula:ZXwherein Z is defined above and wherein X is selected from the group consisting of hydrogen, specified nitrogen-containing radicals, and specified organic radicals. The reaction is carried out in ether solvent. In a preferred embodiment, Q is NH.sub.3 and X is hydrogen.Type: GrantFiled: May 1, 1979Date of Patent: August 5, 1980Assignee: Exxon Research & Engineering Co.Inventors: Lawrence P. Klemann, Eugene L. Stogryn
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Patent number: 4176167Abstract: Alkali metal iodates are converted to the corresponding periodate by contacting the iodate with a hydroxide of the same or different alkali metal and an oxygen containing gas at temperatures of from 150.degree. C. to 600.degree. C.Type: GrantFiled: September 19, 1977Date of Patent: November 27, 1979Assignee: The Dow Chemical CompanyInventors: Robert T. Jernigan, Byford D. Sheffield
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Patent number: 4134967Abstract: Mono- and dibasic alkali metal periodates are prepared by reacting tri-, tetra- and pentabasic alkali metal periodates with a substance having a relative acidity value, pKa, of from 3 to 16 at a temperature of from 0.degree. to 100.degree. C at molar ratios of periodate to moles of acidic substance of 1:1 to 1:1000. The mono- and dibasic alkali metal periodates are useful in oxidizing olefins such as propylene to the corresponding oxide such as propylene oxide.Type: GrantFiled: September 19, 1977Date of Patent: January 16, 1979Assignee: The Dow Chemical CompanyInventors: James E. Hillis, William P. Coker
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Patent number: 4066736Abstract: A process for preparing concentrated solutions of hydroxylammonium nitrate (HAN) or hydroxylammonium perchlorate (HAP) which comprise reacting hydroxylammonium sulfate with either barium nitrate or barium perchlorate, in such a way that the dissolved barium salt is reacted with the dissolving hydroxylammonium sulfate while agitating the system so as to keep the slurried barium salt from directly contacting the hydroxylammonium sulfate. The rate of addition of the hydroxylammonium sulfate is slower than the rate of solution of the barium salt. An excess of barium nitrate or barium perchlorate ions is needed in the solution to which the hydroxylammonium sulfate is added until the reaction is terminated. The concentration of the HAN or HAP in the final solution can be increased still further if a solution of HAN or HAP is respectively used in forming the barium salt slurry.Type: GrantFiled: March 19, 1976Date of Patent: January 3, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventor: Thomas Liggett
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Patent number: 4065550Abstract: Lithium hexafluoroarsenate of high purity is prepared by a metathetical rtion between potassium hexafluoroarsenate and lithium perchlorate in an inert organic solvent such as methyl formate. The potassium perchlorate produced is insoluble in the solvent and can be readily separated from the lithium hexafluoroarsenate which is soluble in the solvent.Type: GrantFiled: January 31, 1977Date of Patent: December 27, 1977Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Walter B. Ebner, Charles Richard Walk
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Patent number: 4023935Abstract: A method of making finely particulate ammonium perchlorate which comprises establishing a two-phase liquid system in which the upper phase is a concentrated solution of ammonium perchlorate and the lower phase is a liquid which is immiscible with the upper phase solvent and a non-solvent for ammonium perchlorate. Precipitation of ammonium perchlorate from the solution into the non-solvent is effected by either cooling the solution or evaporating the solvent thereof while subjecting the system to ultra-sonic vibrations. Fine ammonium perchlorate particles collect in the non-solvent phase and are recovered therefrom.Type: GrantFiled: September 15, 1971Date of Patent: May 17, 1977Assignee: Thiokol CorporationInventors: Michael L. Levinthal, Gale F. Allred, Larry W. Poulter
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Patent number: 4022811Abstract: Derivatives of perbromic acid of the formula: XBrO.sub.4 wherein X is Ag, H.sub.3).sub.2 CH, or (CH.sub.3).sub.2 C.sub.2 H.sub.3 prepared by a synthesis of silver perbromate through the reaction of dilute aqueous perbromic acid with silver oxide at a temperature from 0.degree. to 50.degree. C, followed by a removal of water and by a synthesis of isopropyl or isobutyl perbromate through the reaction of anhydrous silver perbromate suspended in a fluid selected from the class consisting of carbon tetrachloride, cyclohexane, and 1,1,2-trichlorotrifluoroethane with an alkyl bromide at a temperature from -25.degree. to 0.degree. C. Isopropyl and isobutyl perbromates are useful as oxidizing agents for alcohols.Type: GrantFiled: January 21, 1976Date of Patent: May 10, 1977Assignee: The United States of America as represented by the Secretary of the NavyInventors: Kurt Baum, Charles D. Beard, Vitautas Grakaukas
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Patent number: 4012492Abstract: Preparation of titanium tetraperchlorate, vanadium perchlorate, and chromyl erchlorate by the reactions of chlorine perchlorate with the respective anhydrous metal chlorides at a temperature from about -45.degree. C to about 20.degree. C. These perchlorates are useful in compounding gas generating compositions.Type: GrantFiled: June 10, 1975Date of Patent: March 15, 1977Assignee: The United States of America as represented by the Secretary of the NavyInventors: Carl J. Schack, Donald Pilipovich
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Patent number: 3979313Abstract: A bleaching composition comprising a hydrogen peroxide adduct having the formula:4Na.sub.2 SO.sub.4.sup.. 2H.sub.2 O.sub.2.sup.. NaCland an activating agent.Type: GrantFiled: July 7, 1975Date of Patent: September 7, 1976Assignees: Kao Soap Co., Ltd., Nippon Peroxide Co., Ltd.Inventors: Yunosuke Nakagawa, Shigetsugu Sugiura, Kinjiro Matsunaga, Yoshio Ito
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Patent number: RE34419Abstract: Liquid ammonia is maintained at the required operating conditions to efficiently and rapidly achieve propellant demilitarization including recovery of ammonia perchlorate (AP) for reuse, by an environmentally safe method to comminute and remove propellant from existing rocket motor hardware. The method is also applicable to both solid and ground composite propellant which includes scrap or waste propellant. A disclosed demilitarization unit employed in the ammonium perchlorate recovery method is comprised of a supply and high pressure spray system for liquid ammonia, an extraction system, oxidizer recovery system, and an ammonia recovery, drying,* and recycling system. The method is workable at ambient temperature since ammonia is liquified under its own vapor pressure at 114 psig; however, increased temperature further enhances the extraction efficiency of the system.Type: GrantFiled: June 25, 1990Date of Patent: October 26, 1993Assignee: The United States of America as represented by the Secretary of the ArmyInventors: William S. Melvin, James F. Graham