公开(公告)号：US4687581A

公开(公告)日：1987-08-18

申请号：US574986

申请日：1984-01-30

Applicant: Pedro B. Macedo ,  Aaron Barkatt ,  Herbert G. Sutter

Inventor： Pedro B. Macedo ,  Aaron Barkatt ,  Herbert G. Sutter

IPC: B01J39/02 ,  B01J49/00 ,  G21F9/12 ,  C02F1/42

CPC classification number: C03C1/002 ,  B01J39/02 ,  B01J49/0008 ,  C03C11/005 ,  C03C21/001 ,  C03C23/0095 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  G21F9/12 ,  C03C2201/10 ,  C03C2201/20 ,  C03C2201/50

Abstract: A method for separating and purifying cations by ion exchange with regenerable porous glass. More specifically, the method is for decontaminating toxic waste streams such as a radioactive waste streams and concentrating the radioactive cations contained therein which comprises passage of the waste stream through an ion exchange medium of porous silicate glass or silica gel. In one embodiment, a liquid nuclear waste stream is passed through an ion exchange column containing porous silicate glass or silica gel having a plurality of .tbd.Si--O--Z groups wherein Z represents a non-radioactive cation (hydrogen, alkali metals, Group Ib metals and ammonium cations, and mixtures thereof) to displace the non-radioactive cations of the silicate glass or silica gel by the radioactive cations of the waste stream. Thereafter, the ion exchange medium is contacted with an aqueous solution of an acid to strip the radioactive cations therefrom and the stripped ion exchange medium is regenerated. The stripped ion exchange medium can be regenerated by contacting it with an aqueous basic solution of an alkali metal or ammonium ion. Additional liquid radioactive waste is contacted with the regenerated ion exchange medium to decontaminate an additional volume of liquid waste.

Abstract translation: 通过可再生多孔玻璃离子交换分离和提纯阳离子的方法。 更具体地说，该方法是对诸如放射性废物流的有毒废物流进行净化，并浓缩其中所含的放射性阳离子，其中废物流通过多孔硅酸盐玻璃或硅胶的离子交换介质。 在一个实施方案中，液体核废料流通过含有多孔硅酸盐玻璃或硅胶的离子交换柱，该多孔硅酸盐玻璃或硅胶具有多个3BOND Si-OZ基团，其中Z表示非放射性阳离子（氢，碱金属，Ib族金属和 铵阳离子及其混合物），以通过废物流的放射性阳离子置换硅酸盐玻璃或硅胶的非放射性阳离子。 此后，使离子交换介质与酸的水溶液接触，以从其中分离出放射性阳离子，再生剥离的离子交换介质。 剥离的离子交换介质可以通过与碱金属或铵离子的碱性水溶液接触来再生。 附加的液体放射性废物与再生的离子交换介质接触以净化额外体积的废液。

公开(公告)号：US06084146A

公开(公告)日：2000-07-04

申请号：US713243

申请日：1996-09-12

Applicant: Aaron Barkatt ,  Ewa Labuda ,  Marta Gmurczyk ,  Donna M. Wilder

Inventor： Aaron Barkatt ,  Ewa Labuda ,  Marta Gmurczyk ,  Donna M. Wilder

IPC: G21F9/06 ,  G21F9/10 ,  G21F9/30 ,  G21F9/00

CPC classification number: G21F9/302 ,  G21F9/06 ,  G21F9/10

Abstract: Processes for immobilizing solid contaminated materials, such as radioactive species, hazardous species, or combinations of both radioactive and hazardous species, comprise mixing the contaminated materials with hydrated ferric oxides, and then pressing the mixture at a temperature of at least about 150.degree. C. and gradually removing a large part of the water while under pressure to produce a solid composition. The water content of the mixture is adjusted if necessary. Contaminated materials dissolved or suspended in an aqueous solution can be immobilized by precipitating hydrated ferric oxide in the solution, and adjusting the water content and pressing, as above. In another process in accordance with the present invention, hydrated ferric oxides are deposited on metal surfaces. The deposited ferric oxide is pressed to produce a solid coating adhered to the surface, to retard corrosion. A ceramic body of ferric oxide composition may also be made in accordance with the present invention.

Abstract translation: 用于固定固体污染物质（例如放射性物质，危险物质或放射性和危险物质的组合）的方法包括将污染物质与水合氧化铁混合，然后在至少约150℃的温度下压制该混合物。 并在压力下逐渐除去大部分水以产生固体组合物。 必要时调整混合物的含水量。 溶解或悬浮在水溶液中的污染物质可以如上所述通过在溶液中沉淀水合氧化铁并调节含水量和压制来固定。 在根据本发明的另一方法中，水合氧化铁沉积在金属表面上。 压制沉积的氧化铁以产生粘附到表面的固体涂层，以延缓腐蚀。 也可以根据本发明制造氧化铁组合物的陶瓷体。

公开(公告)号：US4659477A

公开(公告)日：1987-04-21

申请号：US517472

申请日：1983-07-28

Applicant: Pedro B. Macedo ,  Aaron Barkatt

Inventor： Pedro B. Macedo ,  Aaron Barkatt

IPC: G21F9/16 ,  G21F9/12 ,  B01D15/04 ,  B01J20/02 ,  G21F9/02

CPC classification number: C03C1/002 ,  C03C1/006 ,  C03C11/005 ,  C03C21/001 ,  C03C23/0095 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  G21F9/12 ,  C03C2201/10 ,  C03C2201/20 ,  C03C2201/50

Abstract: A composition comprising a support such as a porous silicate glass or silica gel or charcoal having interconnected pores and containing heavy metal cations of mercury, thallium, silver, platinum, palladium, lead or copper capable of forming a stable complex with an anion bonded to the support. The preferred heavy metal cation is a mercury cation. The composition is especially useful for removing radioactive iodine from liquid and gaseous waste streams.

Abstract translation: 一种组合物，其包含诸如多孔硅酸盐玻璃或硅胶的载体或具有互连孔并且含有能与阴离子结合的汞，铊，银，铂，钯，铅或铜的重金属阳离子的活性炭 支持。 优选的重金属阳离子是汞阳离子。 该组合物特别适用于从液态和气态废物流中除去放射性碘。

公开(公告)号：US4876232A

公开(公告)日：1989-10-24

申请号：US101920

申请日：1987-09-28

Applicant: Aaron Barkatt

Inventor： Aaron Barkatt

IPC: G21F9/12 ,  B01D15/08 ,  B01J20/22 ,  B01J20/28 ,  B01J45/00 ,  C02F1/28 ,  C22B7/00 ,  C22B15/00 ,  G21F9/16

CPC classification number: B01J20/20 ,  B01D15/00 ,  B01J20/28097 ,  B01J20/3242 ,  B01J20/3244 ,  B01J20/3255 ,  B01J45/00 ,  C02F1/283 ,  C02F1/288

Abstract: Compositions comprising carbon-based supports and containing heteropolycyclic compounds such as bipyridyl, phenanthroline or derivatives thereof are used in separation of dissolved late transition metals such as Fe, Co, Ni and Cu from solutions, in particular when such solutions contain high concentrations of other dissolved metals such as Zr, Hf, La, Al and Ba. Such compositions are also used to separate late transition metals such as Pt group metals from each other.

Abstract translation: 包含碳基载体并含有杂多环化合物如联吡啶，菲咯啉或其衍生物的组合物用于从溶液中分离溶解的后过渡金属如Fe，Co，Ni和Cu，特别是当这些溶液含有高浓度的其它溶解 金属如Zr，Hf，La，Al和Ba。 这些组合物也用于将后期过渡金属如Pt族金属彼此分离。

公开(公告)号：US4659512A

公开(公告)日：1987-04-21

申请号：US563840

申请日：1983-12-21

Applicant: Pedro B. Macedo ,  Aaron Barkatt

Inventor： Pedro B. Macedo ,  Aaron Barkatt

IPC: B01D15/00 ,  C02F1/28 ,  C02F1/42 ,  C02F1/68 ,  G21F9/12 ,  B01J20/00 ,  C01G1/00

CPC classification number: C03C1/002 ,  C02F1/288 ,  C02F1/683 ,  C03C11/005 ,  C03C21/001 ,  C03C23/0095 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  G21F9/12 ,  C02F2101/006 ,  C03C2201/10 ,  C03C2201/20 ,  C03C2201/50

Abstract: A process for removing metal species from solution comprising passing the liquid over a composition comprising a support such as a porous silicate glass or silica gel or charcoal having interconnected pores and containing water soluble amine complexing agents absorbed on the support capable of forming a stable complex with the metal species. The preferred amine complexing agent is triethylenetetramine. The process is especially useful for removing radioactive cobalt from liquid waste streams.

Abstract translation: 一种用于从溶液中除去金属物质的方法，包括将液体通过包含诸如多孔硅酸盐玻璃或硅胶的载体或具有互连孔的载体的组合物，并且含有吸收在能够形成稳定配合物的载体上的水溶性胺络合剂的组合物 金属物种。 优选的胺络合剂是三亚乙基四胺。 该方法特别适用于从废液流中除去放射性钴。

公开(公告)号：US4654146A

公开(公告)日：1987-03-31

申请号：US715207

申请日：1985-03-25

Applicant: Aaron Barkatt ,  Pedro B. Macedo

Inventor： Aaron Barkatt ,  Pedro B. Macedo

IPC: B01D15/04 ,  B01J47/00

CPC classification number: B01J47/007

Abstract: A process for removing heavy alkali metal cations from solution comprising passing a liquid over a composition including a support such as charcoal having interconnected pores containing a tetra-aryl boron moiety associated with an ion exchangeable cation absorbed on the support capable of forming a stable compound with a heavy alkali metal cation.

Abstract translation: 从溶液中除去重质碱金属阳离子的方法，包括使液体在包含载体（例如炭的组合物）上的组合物，所述组合物包含具有相互连通的孔的载体，所述互连孔包含与能够形成稳定化合物的载体上吸附的可离子交换阳离子缔合的四芳基硼部分 重金属阳离子。

公开(公告)号：US06288300B1

公开(公告)日：2001-09-11

申请号：US09357346

申请日：1999-07-14

Applicant: Miriam Lemus ,  Aaron Barkatt ,  Marta Gmurczyk ,  Galina Cherepakhov

Inventor： Miriam Lemus ,  Aaron Barkatt ,  Marta Gmurczyk ,  Galina Cherepakhov

IPC: G21F900

CPC classification number: G21F9/302 ,  G21F9/06 ,  G21F9/10

Abstract: Organic materials are mixed with metal oxide, such as hydrated metal oxides, prior to or during heat treatments in aerated or oxygenated environments to stabilize thermal decomposition or incineration of the organic materials and to suppress the emission of volatile, hazardous organic compounds. The organic materials may be ion exchange resins and polymeric sorbents, for example, and include contaminated materials such as hazardous wastes. The hydrated metal oxides may be hydrated ferric oxide, hydrated aluminum oxide or hydrated titania oxide, for examples. Ferrihydrite is preferred. The heat treatment may be a preparation for a waste disposal process, such as immobilization in ferric oxide, cement, concrete, a polymer, bitumen or glass, for example. Immobilization processes in ferric oxide are also discussed, including the use of additives such as magnesium oxide, ammonium dihydrogen phosphate and phosphoric acid, enabling consolidation at room temperature and pressures less than 15,000 psi.

Abstract translation: 在充气或含氧环境中的热处理之前或期间，有机材料与金属氧化物如水合金属氧化物混合，以稳定有机材料的热分解或焚烧并抑制挥发性有害有机化合物的排放。 有机材料可以是例如离子交换树脂和聚合物吸附剂，并且包括受污染的材料如危险废物。 水合金属氧化物可以是水合氧化铁，水合氧化铝或水合二氧化钛，例如。 碳水化合物是优选的。 热处理可以是用于废物处理过程的制剂，例如在氧化铁，水泥，混凝土，聚合物，沥青或玻璃中的固定。 还讨论了氧化铁中的固定方法，包括使用添加剂如氧化镁，磷酸二氢铵和磷酸，可在室温和压力小于15,000psi下进行固化。

公开(公告)号：US5270292A

公开(公告)日：1993-12-14

申请号：US659719

申请日：1991-02-25

Applicant: Hamid Hojaji ,  Aaron Barkatt

Inventor： Hamid Hojaji ,  Aaron Barkatt

IPC: H01L39/12 ,  H01B12/06

CPC classification number: H01L39/126 ,  Y10S505/733 ,  Y10S505/739

Abstract: Improved superconducting materials with high maximum magnetization, remanent magnetization and diamagnetic susceptibility can be made by enriching the base Y-Ba-Cu-O composition, Y:Ba:Cu=1:2:3, with respect to Y, or adding other trivalent or pentavalent elements (e.g. rare earths, Nb) to this composition. The mixed oxide materials are heated to melt a substantial fraction of their weight, quenched to a low temperature, re-heated to a temperature lower than the one initially used to effect melting, and annealed by slow cooling under air or oxygen.

Abstract translation: 通过将Y-Ba-Cu-O组分Y，Ba：Cu = 1：2：3相对于Y进行富集，或者加入其他三价的，可以制备具有高最大磁化强度，剩磁和抗磁化率的改进的超导材料 或五价元素（如稀土元素，Nb）。 将混合的氧化物材料加热以熔化其重量的相当大的一部分，淬火至低温，再加热至低于最初用于熔化的温度，并通过在空气或氧气下缓慢冷却进行退火。

公开(公告)号：US4332031A

公开(公告)日：1982-05-25

申请号：US132588

申请日：1980-03-21

Applicant: Aaron Barkatt ,  Pedro B. Macedo

Inventor： Aaron Barkatt ,  Pedro B. Macedo

IPC: G21C19/30 ,  B01J20/02 ,  B01J20/08 ,  B01J39/04 ,  C01B35/12 ,  C02F1/28 ,  G21C19/307 ,  G21C19/32 ,  B01J21/02

CPC classification number: B01J20/08 ,  B01J39/04 ,  C02F1/281 ,  G21C19/307

Abstract: Silica is selectively removed from aqueous liquid containing a relatively large amount of borate (or boric acid) and a relatively small amount of silica using borate loaded alumina as the sorbant. The effluent can be passed through lithium loaded cation exchange resin to remove any dissolved aluminum.

Abstract translation: 选择性地从含有相对大量硼酸盐（或硼酸​​）和相对少量二氧化硅的含水液体中选择性地除去二氧化硅，其使用负载硼酸的氧化铝作为吸水剂。 流出物可以通过负载锂的阳离子交换树脂以除去任何溶解的铝。

公开(公告)号：US5434331A

公开(公告)日：1995-07-18

申请号：US977506

申请日：1992-11-17

Applicant: Aaron Barkatt ,  Stephanie A. Olszowka

Inventor： Aaron Barkatt ,  Stephanie A. Olszowka

IPC: C23G1/02 ,  G21F9/00

CPC classification number: C23G1/02 ,  G21F9/004

Abstract: A process for the decontamination of solid surfaces contaminated with radioactive or heavy metal species using a solution based on one or more non-persistent complexing agents, or for the chemical cleaning of steam generator sludge using such a solution, or for removing radioactive or heavy metal species from a solution using a combination of a one or more non-persistent complexing agents and a solid support, followed in each case by thermal or thermal-chemical treatment to decompose said non-persistent complexing agent. The preferred non-persistent complexing agents are hydroxamic acids, and the most preferred is acetohydroxamic acid.

Abstract translation: 使用基于一种或多种非持久性络合剂的溶液或使用这种溶液对蒸汽发生器污泥进行化学清洗或用于去除放射性或重金属的用于对被放射性或重金属物质污染的固体表面进行去污染的方法 来自使用一种或多种非持久性络合剂和固体支持物的组合的溶液的物质，然后在每种情况下通过热或热化学处理分解所述非持久性络合剂。 优选的非持久性络合剂是异羟肟酸，最优选的是乙酰肟酸。