Mixed-layered bismuth-oxygen-iodine materials for capture and waste disposal of radioactive iodine
    31.
    发明授权
    Mixed-layered bismuth-oxygen-iodine materials for capture and waste disposal of radioactive iodine 有权
    用于捕获和废物处理放射性碘的混合铋 - 氧碘物质

    公开(公告)号:US08383021B1

    公开(公告)日:2013-02-26

    申请号:US12617051

    申请日:2009-11-12

    Abstract: Materials and methods of synthesizing mixed-layered bismuth oxy-iodine materials, which can be synthesized in the presence of aqueous radioactive iodine species found in caustic solutions (e.g. NaOH or KOH). This technology provides a one-step process for both iodine sequestration and storage from nuclear fuel cycles. It results in materials that will be durable for repository conditions much like those found in Waste Isolation Pilot Plant (WIPP) and estimated for Yucca Mountain (YMP). By controlled reactant concentrations, optimized compositions of these mixed-layered bismuth oxy-iodine inorganic materials are produced that have both a high iodine weight percentage and a low solubility in groundwater environments.

    Abstract translation: 合成混合层状铋氧碘物质的材料和方法,其可以在苛性碱溶液(例如NaOH或KOH)中存在的含水放射性碘物质的存在下合成。 该技术为核燃料循环的碘储存和储存提供了一个一步的过程。 它产生的材料对于非常类似于废弃物隔离试验工厂(WIPP)和估计为丝兰山(YMP)的储存条件而言将是耐用的。 通过控制反应物浓度,生产这些混合层状铋氧 - 碘无机材料的优化组合物,其具有高碘重量百分比和在地下水环境中的低溶解度。

    Method of manufacturing piezoelectric/electrostrictive ceramic composition
    32.
    发明授权
    Method of manufacturing piezoelectric/electrostrictive ceramic composition 有权
    制造压电/电致伸缩陶瓷组合物的方法

    公开(公告)号:US08277680B2

    公开(公告)日:2012-10-02

    申请号:US12507199

    申请日:2009-07-22

    Abstract: A (Li, Na, K)(Nb, Ta)O3-based piezoelectric/electrostrictive ceramic composition having large electric field-induced distortion at the time of application of a high electric field is provided. A perovskite oxide is synthesized which contains Li (lithium), Na (sodium) and K (potassium) as A-site elements and contains at least Nb (niobium) and Sb (antimony) out of Nb, Ta (tantalum) and Sb as B-site elements, the ratio of the total number of atoms of the A-site elements to the total number of atoms of the B-site elements being larger than 1, and then a Bi (bismuth) compound is added and reacted. The amount of addition of the Bi compound with respect to 100 molar parts of the perovskite oxide is preferably not less than 0.02 molar part nor more than 0.1 molar part in terms of Bi atoms.

    Abstract translation: 提供了在施加高电场时具有大的电场诱导失真的(Li,Na,K)(Nb,Ta)O 3系压电/电致伸缩陶瓷组合物。 合成了含有Li(锂),Na(钠)和K(钾)作为A位元素并且至少含有Nb,Ta(钽)和Sb中的Nb(铌)和Sb(锑)的钙钛矿氧化物, B位元素,A位元素的原子总数与B位元素的总原子数大于1的比例,然后添加Bi(铋)化合物并进行反应。 相对于100摩尔份的钙钛矿氧化物,Bi化合物的添加量优选为Bi原子计为0.02摩尔以上0.1摩尔以下。

    Calcium-sodium polysulfide chemical reagent and production methods
    39.
    发明授权
    Calcium-sodium polysulfide chemical reagent and production methods 有权
    多硫化钙化学试剂及其制备方法

    公开(公告)号:US07767188B2

    公开(公告)日:2010-08-03

    申请号:US12384596

    申请日:2009-04-07

    Abstract: A calcium-sodium polysulfide chemical reagent and methods for producing the reagent. The reagent is a blend of calcium polysulfide and sodium polysulfide that can be prepared using various types, sources and ratios of lime, elemental sulfur and sulfide ion using either virgin or waste materials. The reagent is amenable to inexpensive and high rate production methods at ambient or warmer temperatures. The reagent can be used to precipitate metals from wastewater, stabilize hexavalent chrome in hazardous waste residues, remove mercury from coal fired power plants, and as an electrolyte in large-scale bromide/polysulfide electrical storage batteries.

    Abstract translation: 一种多硫化钙化学试剂及其制备方法。 试剂是多硫化钙和多硫化钠的混合物,可以使用原始或废物材料的各种类型,来源和石灰,元素硫和硫化物离子的比例来制备。 该试剂在环境温度或较暖的温度下适用于廉价和高速生产方法。 该试剂可用于从废水中沉淀金属,在危险废物残留物中稳定六价铬,从燃煤电厂中除去汞,以及在大型溴化物/多硫化物蓄电池中作为电解液。

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