| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Process for recovering cesium from cesium alum | EP84107903 | 1984-07-06 | EP0132656A3 | 1985-04-17 | Mein, Peter Guenter |
@ Cesium is recovered from cesium alum, CsAl(SO4)2, by a two-reaction sequence in which the cesium alum is first dissolved in an aqueous hydroxide solution to form cesium alum hydroxide, CsAl (OH)3, and potassium sulfate, K2SO4. part of the K2SO4 precipitates and is separated from the supernatant solution. In the second reaction, a water-soluble permanganate, such as potassium permanganate, KMnO., is added to the supernatant. This reaction forms a precipitate of cesium permanganate, CsMnO.. This precipitate may be separated from the residual solution to obtain cesium permanganate of high purity, which can be sold as a product or converted into other cesium compounds. |
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| 82 | Process for recovering cesium from cesium alum | EP84107903.1 | 1984-07-06 | EP0132656A2 | 1985-02-13 | Mein, Peter Guenter |
@ Cesium is recovered from cesium alum, CsAl(SO4)2, by a two-reaction sequence in which the cesium alum is first dissolved in an aqueous hydroxide solution to form cesium alum hydroxide, CsAl (OH)3, and potassium sulfate, K2SO4. part of the K2SO4 precipitates and is separated from the supernatant solution. In the second reaction, a water-soluble permanganate, such as potassium permanganate, KMnO., is added to the supernatant. This reaction forms a precipitate of cesium permanganate, CsMnO.. This precipitate may be separated from the residual solution to obtain cesium permanganate of high purity, which can be sold as a product or converted into other cesium compounds. |
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| 83 | Process for recovering cesium from cesium alum | EP84107442.0 | 1984-06-27 | EP0131206A1 | 1985-01-16 | Mein, Peter Guenter |
Cesium is recovered from cesium alum, CsAl(SO4)2, by an aqueous conversion and precipitation reaction using a critical stoichiometric excess of a water-soluble permanganate to form solid cesium permanganate (CsMnO4) free from cesium alum. The other metal salts remain in solution, providing the final pH does not cause hydroxides of aluminum or iron to form. The precipitate is separated from the residual solution to obtain CsMnO. of high purity. |
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| 84 | MEMBER FOR HYDROGEN PRODUCTION AND HYDROGEN PRODUCTION APPARATUS | US16061685 | 2016-11-15 | US20180370794A1 | 2018-12-27 | Masahide AKIYAMA; Takeshi OHKUMA |
| A member for hydrogen production includes a ceramic composite in which a plurality of ceramic particles having an average particle diameter ranging from 5 nm to 200 nm are dispersed in a porous insulator having a different component from the ceramic particles. The ceramic particles comprise at least one substance selected from the group consisting of AXO3±δ (where 0≤δ≤1, A: at least one of rare earth elements, alkaline earth elements, and alkali metal elements, X: at least one of transition metal elements and metalloid elements, and O: oxygen), cerium oxide, and zirconium oxide as a main component. | ||||||
| 85 | METHOD FOR CONCENTRATING METAL COMPOUND | US14424830 | 2013-09-02 | US20150225812A1 | 2015-08-13 | Takaya Akashi |
| To concentrate metals such as gallium from ore which is extracted from mines or used electronic components while suppressing the quantity of waste liquid generated is difficult. A first solid metal compound which contains a metal selected from a group consisting of gallium, indium, germanium, tellurium, and cesium at a first metal content in a mixture of the first solid metal compound is reduced to form a gaseous metal compound, the gaseous metal compound is oxidized to form a second solid metal compound, and the second solid metal compound is collected at a second metal content which is higher than the first metal content. | ||||||
| 86 | Methods To Recover Cesium Formate From A Mixed Alkali Metal Formate Blend | US14549926 | 2014-11-21 | US20150152033A1 | 2015-06-04 | Bart F. Bakke |
| Methods to recover or separate cesium formate or rubidium formate or both from a mixed alkali metal formate blend are described. One method involves adding cesium sulfate or rubidium sulfate to the mixed alkali metal formate blend in order to preferentially precipitate potassium sulfate from the mixed alkali metal formate blend. Another method involves adding cesium carbonate or cesium bicarbonate or both to preferentially precipitate potassium carbonate/bicarbonate and/or other non-cesium or non-rubidium metals from the mixed alkali metal blend. Further optional steps are also described. Still one other method involves converting cesium sulfate to cesium hydroxide. | ||||||
| 87 | Fluoride drying apparatus | US13429824 | 2012-03-26 | US08496887B2 | 2013-07-30 | Erik Arstad |
| The invention relates to methods and apparatus for drying [18F]fluoride which comprises (i) passing a [18F]fluoride solution comprising water, a solvent, [18F]fluoride, and a cationic counterion through a narrow bore vessel at elevated temperature such that the water and solvent are vaporised forming a vaporised component, and (ii) collecting the resulting vaporised component by condensing into a collection vessel. | ||||||
| 88 | NANOSTRUCTURES | US13737352 | 2013-01-09 | US20130177749A1 | 2013-07-11 | Qiaobing Xu; Xiaoshu Dai |
| A method for producing a matrix containing nanostructures. The method includes obtaining a layer having a thickness of 10 nm-100 μm, wherein the layer contains organic macromolecules arranged in a nanopattern, staining the layer with a solution containing a salt so that a portion of the salt is retained in the layer, and removing the organic mcaromolecules from the layer to form a matrix containing nanostructures. Also within the scope of this invention are nanostructures prepared by this method. | ||||||
| 89 | DEVICE AND METHOD OF SANITATION AND/OR STERILIZATION | US13394531 | 2010-09-07 | US20130171023A1 | 2013-07-04 | Eran Ben-Shmuel; Alexander Bilchinsky; Steven R. Rogers; Daniella Atzmony; Elliad Silcoff |
| A device for washing, sanitizing, and/or sterilizing an item is disclosed. The device may comprise a solution applicator for coating a surface of said item with a washing, sanitizing and/or sterilizing solution. The device may also comprise a heating unit for heating the solution coated on the surface of said item to a working temperature. The device may further comprise a control unit for keeping the temperature of the treating substance at the working temperature for a predetermined amount of time. | ||||||
| 90 | Methods of forming an alkali metal salt | US11110268 | 2005-04-20 | US07759273B2 | 2010-07-20 | Bart Bakke |
| A method of making an alkali metal salt is described and involves (1) reacting at least one alkali metal formate with an least one acid to form an alkali metal salt in the presence of formate ions and (2) substantially removing the formate ions from the alkali metal salt formed in step (1). | ||||||
| 91 | Methods for Producing Cesium Hydroxide Solutions | US11795855 | 2006-01-25 | US20080166281A1 | 2008-07-10 | Gerd J. Harms; Alexander Schiedt; Manfred Bick; Wolfgang Hildebrandt |
| Methods for producing cesium hydroxide solutions during which: cesium-containing ore is disintegrated with sulfuric acid while forming a cesium aluminum sulfate hydrate, which is poorly soluble at low temperatures; the formed cesium alum is separated away in the form of a solution from the solid ore residues; the aluminum is precipitated out of the cesium alum solution while forming a cesium sulfate solution; the formed cesium sulfate solution is reacted with barium hydroxide or stontium hydroxide while forming a cesium hydroxide solution, and; the formed cesium hydroxide solution is concentrated and purified. | ||||||
| 92 | Continuous preparation of high purity Bis(fluoroxy)difluoromethane (BDM) at elevated pressure | US09782268 | 2001-02-13 | US20020156321A1 | 2002-10-24 | Robert George Syvret |
| The invention provides an improved process for preparing bis(fluoroxy)difluoro-methane (BDM) by continuously reacting F2 with CO2 in a reactor containing a fluorination catalyst (e.g., CsF), wherein the process is conducted at a pressure above atmospheric pressure. The process provides BDM of very high purity and very low residual F2. | ||||||
| 93 | Method for the removal of cesium from radioactive waste liquids | US09202453 | 1998-12-15 | US06214234B1 | 2001-04-10 | Risto Harjula; Jukka Lehto |
| A method for removal of cesium from aqueous solution, particularly from nuclear waste liquids. The cesium-containing aqueous solution is contacted with a solid-state hexacyanoferrate compound of a transition element for binding cesium to the hexacyanoferrate. The aqueous solution of reduced cesium content is separated from the hexacyanoferrate. Preferably, a nickel or cobalt hexacyanoferrate is utilized having a fraction of exchangeable transition elements smaller than 35 %. The hexacyanoferrate compound of said transition element may be produced by slowly adding an aqueous solution of the hexacyanoferrate into the transition element salt solution, the concentration of the transition element salt solution being at least 0.35 mol/l, stirring the mixture at ambient temperature during the addition, and separating and recovering the resulting hexacyanoferrate precipitate from the mixture. This method has achieved volume reductions—that is, volume of cesium-containing waste liquid remaining in the ion-exchange column reduced from volume of cesium-containing aqueous solution treated—of as much as 9000 fold. | ||||||
| 94 | Adsorbent for metal ions and method of making and using | US357677 | 1999-07-20 | US6093664A | 2000-07-25 | Lloyd R. White; Susan H. Lundquist |
| A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Cs ions from aqueous solutions. | ||||||
| 95 | Process for producing purified cesium compound from cesium alum | US858758 | 1997-05-19 | US6015535A | 2000-01-18 | Patrick M. Brown; Michael C. Northrup; Bart F. Bakke |
| Disclosed is a method for producing a predetermined cesium compound. The method comprises treating a cesium-containing material with a suitable reagent to dissolve at least a portion of the cesium contained in the material and form a slurry; adding a base comprising slaked lime or calcium carbonate and an acid containing the anion of the predetermined cesium compound to the slurry comprising the dissolved cesium; and separating the predetermined cesium compound. In one embodiment of the invention there is provided a method for producing a predetermined cesium compound from an ore comprising cesium aluminosilicate comprising: treating an ore comprising cesium aluminosilicate with an acid to form a slurry and dissolve at least a portion of the cesium contained in the ore; adding a base comprising slaked lime or calcium carbonate and a quantity of an acid containing the anion of the predetermined cesium compound to the slurry comprising dissolved or solubilized cesium; and separating the predetermined cesium compound. A drilling fluid or heavy medium separation fluid comprising the predetermined cesium compound of the process and having a specific gravity of between about 1.2 g/cm.sup.3 and about 2.5 g/cm.sup.3 and having less than 85% by weight of the predetermined cesium compound on a solution basis is also disclosed. | ||||||
| 96 | Adsorbent for metal ions and method of making and using | US918113 | 1997-08-27 | US5935380A | 1999-08-10 | Lloyd R. White; Susan H. Lundquist |
| A method comprises the step of spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size in the range of 1 to 500 micrometers, said particles being active towards Cs ions. The particles, which can be of a single salt or a combination of salts, can be used free flowing, in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove Cs ions from aqueous solutions. | ||||||
| 97 | Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents | US412384 | 1995-03-28 | US5603074A | 1997-02-11 | Rebecca L. Miller; Anthony B. Pinkerton; Kent D. Abney; Scott A. Kinkead |
| Preparation and use of tetra-C-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents. Tetra-C-alkyl derivatives of cobalt dicarbollide, Co(C.sub.2 R.sub.2 B.sub.9 H.sub.9).sub.2.sup.- (CoB.sub.2 R.sub.4.sup.- ; R=CH.sub.3 and C.sub.6 H.sub.13) are demonstrated to be significant cesium and strontium extractants from acidic and alkaline solutions into non-toxic organic solvent systems. Extractions using mesitylene and diethylbenzene are compared to those with nitrobenzene as the organic phase. CoB.sub.2 -hexyl.sub.4.sup.- in diethylbenzene shows improved selectivity (10.sup.4) for Cs over Na in acidic solution. In dilute alkaline solution, CoB.sub.2 -hexyl.sub.4.sup.- extracts Cs less efficiently, but more effectively removes Sr from higher base concentrations. A general synthesis of tetra-C-alkyl cobalt dicarbollides is described. | ||||||
| 98 | Method for producing a high-density saline cesium and rubidium solution | US436260 | 1995-07-17 | US5593650A | 1997-01-14 | Horst Prinz; Hartmut Hofmann; Klaus K obele; Marion Wegner |
| The method of making a high density saline cesium and rubidium solution includes comminuting uncalcined pollucite and/or calcined lepidolite to a grain size of less than 0.1 mm; combining the comminuted material in the presence of water with Ca(OH).sub.2 at a mol ratio of SiO.sub.2 to CaO of not less than 1:2; hydro-thermally decomposing at a temperature of 200.degree. to 280.degree. C., a pressure of 20 to 40 bar and with a suspension density of 4 to 15% by weight for from 1 to 3 hours to form a suspension containing insoluble solids; filtering the insoluble solids and washing to form a filtrate and concentrating the filtrate; blowing carbon dioxide into the concentrated filtrate to precipitate calcium carbonate and lithium carbonate and filtering the concentrated filtrate to separate the precipitated carbonates from a remaining solution; and then adding an acid or acid anhydride to the remaining solution until the pH of the remaining solution reaches about 6 and concentrating by evaporation to form the high density saline cesium and rubidium solution. | ||||||
| 99 | Sodium removal from brines | US127819 | 1987-12-02 | US4859343A | 1989-08-22 | Teresita C. Frianeza-Kullberg; Darrish W. Barnette |
| A method for removing 99% of the sodium ions from a natural or industrial brine containing dissolved salts of metals of Group 1A of the periodic chart and in which brine sodium ions are not the predominant metal ions by contacting the brine at pH 11 to 12 with an ion exchanger selected from crystalline antimonic acid and polyantimonic acid, and removing from contact with the ion exchanger the brine with greater than 99% of the sodium ions removed. | ||||||
| 100 | Process for recovering cesium from cesium ore | US729463 | 1985-05-01 | US4597955A | 1986-07-01 | Peter G. Mein |
| Cesium is recovered from a cesium-bearing mineral such as pollucite by roasting with an alkaline flux to convert the cesium to a soluble salt, extracting the cesium salt with water, and separating the cesium solution from the residual solids. Water-soluble permanganate is then added to the cesium solution to selectively precipitate cesium permanganate, giving other soluble metal compounds in solution. Cesium permanganate of high purity is recovered by separation from the residual solution. The cesium permanganate can be converted to other cesium compounds. | ||||||
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