公开(公告)号：US20060041043A1

公开(公告)日：2006-02-23

申请号：US11154976

申请日：2005-06-15

申请人： Nick Mann ,  Donald Wood ,  Terry Todd ,  Ferdinand Sebesta

发明人： Nick Mann ,  Donald Wood ,  Terry Todd ,  Ferdinand Sebesta

IPC分类号： C08K5/5399

CPC分类号： B01J20/28026 ,  B01J20/261 ,  B01J20/264 ,  B01J20/28019 ,  B01J20/28028 ,  B01J20/3092 ,  B01J20/321 ,  B01J20/3234 ,  B01J20/324 ,  B01J20/3246 ,  B01J45/00 ,  B01J47/018 ,  B01J2220/58 ,  H01L21/67057

摘要： Composite media, systems, and devices for substantially removing, or otherwise processing, one or more constituents of a fluid stream. The composite media comprise a plurality of beads, each having a matrix substantially comprising polyacrylonitrile (PAN) and supporting one or more active components which are effective in removing, by various mechanisms, one or more constituents from a fluid stream. Due to the porosity and large surface area of the beads, a high level of contact is achieved between composite media of the present invention and the fluid stream being processed. Further, the homogeneity of the beads facilitates use of the beads in high volume applications where it is desired to effectively process a large volume of flow per unit of time.

公开(公告)号：US20060057038A1

公开(公告)日：2006-03-16

申请号：US11117046

申请日：2005-04-28

申请人： Troy Tranter ,  Terry Todd ,  Leroy Lewis ,  Joseph Henscheid

发明人： Troy Tranter ,  Terry Todd ,  Leroy Lewis ,  Joseph Henscheid

IPC分类号： C01G30/00

CPC分类号： G21F9/06 ,  C22B60/0239 ,  C22B60/0291 ,  G21G4/08

摘要： The invention includes a method of separating isotopes from a mixture containing at least two isotopes in a solution. A first isotope is precipitated and is collected from the solution. A daughter isotope is generated and collected from the first isotope. The invention includes a method of producing an actinium-225/bismuth-213 product from a material containing thorium-229 and thorium-232. A solution is formed containing nitric acid and the material and iodate is added to form a thorium iodate precipitate. A supernatant is separated from the thorium iodate precipitate and a second volume of nitric acid is added to the precipitate. The precipitate is stored and a decay product comprising actinium-225 and bismuth-213 is generated in the second volume of nitric acid which is then separated from the thorium iodate precipitate, filtered, and treated using at least one chromatographic procedure. The invention also includes a system for producing an actinium-225/bismuth-213 product.

摘要翻译： 本发明包括从溶液中含有至少两种同位素的混合物中分离同位素的方法。 第一同位素沉淀并从溶液中收集。 从第一个同位素产生和收集一个女儿同位素。 本发明包括从含有钍-229和钍-232的材料制备锕-225 /铋-213产物的方法。 形成含有硝酸的溶液，并加入物质和碘酸盐以形成碘酸钍沉淀物。 将上清液从碘化钍沉淀物中分离出来，向沉淀物中加入第二体积的硝酸。 储存沉淀物，并在第二体积的硝酸中产生包含锕-225和铋-213的衰变产物，然后将其从碘化钍沉淀中分离出来，过滤并使用至少一个色谱法进行处理。 本发明还包括用于制备锕-225 /铋-213产物的系统。

公开(公告)号：US20050211955A1

公开(公告)日：2005-09-29

申请号：US10808039

申请日：2004-03-23

申请人： David Meikrantz ,  Terry Todd ,  Catherine Riddle ,  Jack Law ,  Dean Peterman ,  Bruce Mincher ,  Christopher McGrath ,  John Baker

发明人： David Meikrantz ,  Terry Todd ,  Catherine Riddle ,  Jack Law ,  Dean Peterman ,  Bruce Mincher ,  Christopher McGrath ,  John Baker

IPC分类号： C22B3/26 ,  C22B26/00 ,  C22B60/02 ,  C23G5/00

CPC分类号： C22B3/002 ,  C22B26/00 ,  Y02P10/234

摘要： A mixed extractant solvent including calix[4]arene-bis-(tert-octylbenzo)-crown-6 (“BOBCalixC6”), 4′,4′,(5′)-di-(t-butyldicyclo-hexano)-18-crown-6 (“DtBu18C6”), and at least one modifier dissolved in a diluent. The mixed extractant solvent may be used to remove cesium and strontium from an acidic solution. The DtBu18C6 may be present from approximately 0.01 M to approximately 0.4M, such as from approximately 0.086 M to approximately 0.108 M. The modifier may be 1-(2,2,3,3-tetrafluoropropoxy)-3-(4-sec-butylphenoxy)-2-propanol (“Cs-7SB”) and may be present from approximately 0.01M to approximately 0.8M. In one embodiment, the mixed extractant solvent includes approximately 0.15M DtBu18C6, approximately 0.007M BOBCalixC6, and approximately 0.75M Cs-7SB modifier dissolved in an isoparaffinic hydrocarbon diluent. The mixed extractant solvent may form an organic phase in an extraction system that also includes an aqueous phase. Methods of extracting cesium and strontium as well as strontium alone are also disclosed.

摘要翻译： 混合萃取剂溶剂包括杯[4]芳烃双 - （叔辛基苯并） - 起始-6（“BOBCalixC6”），4'，4'，（5'） - 二 - （叔丁基二环己基） -crown-6（“DtBu18C6”）和溶解在稀释剂中的至少一种改性剂。 混合的萃取剂溶剂可用于从酸性溶液中除去铯和锶。 DtBu18C6可以为约0.01M至约0.4M，例如约0.086M至约0.108M。改性剂可为1-（2,2,3,3-四氟丙氧基）-3-（4-仲 - 丁基苯氧基）-2-丙醇（“Cs-7SB”），并且可以以约0.01M至约0.8M存在。 在一个实施方案中，混合萃取剂溶剂包括溶解在异链烷烃稀释剂中的约0.15M DtBu18C6，约0.007M BOBCalixC6和约0.75M Cs-7SB改性剂。 混合的萃取剂溶剂可以在还包含水相的萃取系统中形成有机相。 还公开了提取铯和锶以及单独的锶的方法。

公开(公告)号：US20060153760A1

公开(公告)日：2006-07-13

申请号：US10949675

申请日：2004-09-24

申请人： David Meikrantz ,  Terry Todd ,  Troy Tranter ,  E. Horwitz

发明人： David Meikrantz ,  Terry Todd ,  Troy Tranter ,  E. Horwitz

IPC分类号： C22B60/02

CPC分类号： C22B3/0005 ,  C22B30/06 ,  C22B60/00 ,  C22B60/0295 ,  G21G4/00 ,  Y02P10/234

摘要： A method of recovering daughter isotopes from a radioisotope mixture. The method comprises providing a radioisotope mixture solution comprising at least one parent isotope. The at least one parent isotope is extracted into an organic phase, which comprises an extractant and a solvent. The organic phase is substantially continuously contacted with an aqueous phase to extract at least one daughter isotope into the aqueous phase. The aqueous phase is separated from the organic phase, such as by using an annular centrifugal contactor. The at least one daughter isotope is purified from the aqueous phase, such as by ion exchange chromatography or extraction chromatography. The at least one daughter isotope may include actinium-225, radium-225, bismuth-213, or mixtures thereof. A liquid-liquid extraction system for recovering at least one daughter isotope from a source material is also disclosed.

公开(公告)号：US20050051492A1

公开(公告)日：2005-03-10

申请号：US10656028

申请日：2003-09-04

申请人： Troy Tranter ,  R. Herbst ,  Nicholas Mann ,  Terry Todd

发明人： Troy Tranter ,  R. Herbst ,  Nicholas Mann ,  Terry Todd

IPC分类号： B01D15/00 ,  B01J20/06 ,  B01J20/26 ,  B01J20/28 ,  B01J20/32 ,  C02F1/28

CPC分类号： B01J20/28026 ,  B01D15/00 ,  B01J20/0229 ,  B01J20/06 ,  B01J20/261 ,  B01J20/264 ,  B01J20/3085 ,  B01J20/3293 ,  B01J2220/46 ,  B01J2220/62 ,  C02F1/285 ,  C02F1/288 ,  C02F2101/103 ,  C02F2101/106

摘要： A method of producing an adsorption medium to remove at least one constituent from a feed stream. The method comprises dissolving at least one metal compound in a solvent to form a metal solution, dissolving polyacrylonitrile into the metal solution to form a PAN-metal solution, and depositing the PAN-metal solution into a quenching bath to produce the adsorption medium. The at least one constituent, such as arsenic, selenium, or antimony, is removed from the feed stream by passing the feed stream through the adsorption medium. An adsorption medium having an increased metal loading and increased capacity for arresting the at least one constituent to be removed is also disclosed. The adsorption medium includes a polyacrylonitrile matrix and at least one metal hydroxide incorporated into the polyacrylonitrile matrix.

摘要翻译： 一种生产吸附介质以从进料流中除去至少一种成分的方法。 该方法包括将至少一种金属化合物溶解在溶剂中以形成金属溶液，将聚丙烯腈溶解在金属溶液中以形成PAN-金属溶液，并将PAN-金属溶液沉积到骤冷浴中以产生吸附介质。 通过使进料流通过吸附介质，从进料流中除去至少一种成分，例如砷，硒或锑。 还公开了具有增加的金属负载和增加用于阻止待除去的至少一种成分的能力的吸附介质。 吸附介质包括聚丙烯腈基质和掺入聚丙烯腈基质中的至少一种金属氢氧化物。

公开(公告)号：US20060213329A1

公开(公告)日：2006-09-28

申请号：US11278522

申请日：2006-04-03

申请人： David Meikrantz ,  Terry Todd ,  Troy Tranter ,  E. Horwitz

发明人： David Meikrantz ,  Terry Todd ,  Troy Tranter ,  E. Horwitz

IPC分类号： C22C43/00 ,  C22B60/00

CPC分类号： C22B3/0005 ,  C22B30/06 ,  C22B60/00 ,  C22B60/0295 ,  G21G4/00 ,  Y02P10/234

摘要： A product includes actinium-225 (225Ac) and less than about 1 microgram (μg) of iron (Fe) per millicurie (mCi) of actinium-225. The product may have a radioisotopic purity of greater than about 99.99 atomic percent (at %) actinium-225 and daughter isotopes of actinium-225, and may be formed by a method that includes providing a radioisotope mixture solution comprising at least one of uranium-233 (233U) and thorium-229 (229Th), extracting the at least one of uranium-233 and thorium-229 into an organic phase, substantially continuously contacting the organic phase with an aqueous phase, substantially continuously extracting actinium-225 into the aqueous phase, and purifying the actinium-225 from the aqueous phase. In some embodiments, the product may include less than about 1 nanogram (ng) of iron per millicurie (mCi) of actinium-225, and may include less than about 1 microgram (μg) each of magnesium (Mg), Chromium (Cr), and manganese (Mn) per millicurie (mCi) of actinium-225.

摘要翻译： 产物包括锕-225（225 225 Ac）和小于约1微克（mug）的铁（Fe）/毫哩（mCi）的锕-225。 产物可以具有大于约99.99原子百分比（at％）锕-225和锕-225的子同位素的放射性同位素纯度，并且可以通过包括提供包含铀-225中的至少一种的放射性同位素混合物溶液的方法形成， 233（ 233u）和钍-229（Th2 Th2 Th），将铀-233和钍-229中的至少一种提取到有机相中，基本上连续地接触 有机相与水相，基本上连续地将锕-225萃取到水相中，并从水相中纯化锕-225。 在一些实施方案中，产物可以包含少于约1纳克（ng）的铁/锕-225的每毫里（mCi），并且可以包括小于约1微克（mug）的镁（Mg），铬（Cr） ，和锕-225的锰（Mn）/毫里（mCi）。