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22 条记录 (耗时 0.012 秒)

    Method of producing magnesium chloride hexahydrate and other alkaline earth salts
    11.
    发明授权
    Method of producing magnesium chloride hexahydrate and other alkaline earth salts 失效
    生产氯化镁六水合物和其他碱土金属盐的方法

    公开(公告)号：US5326432A

    公开(公告)日：1994-07-05

    申请号：US925915

    申请日：1992-08-07

    申请人： Bryan D. Evans

    发明人： Bryan D. Evans

    IPC分类号： B01D1/14 ,  C01B9/02 ,  C01B21/48 ,  C01F5/30 ,  C01F5/38 ,  C01F11/30 ,  C01F11/36

    CPC分类号： C01B9/02 ,  B01D1/14 ,  C01B21/48 ,  C01F11/30 ,  C01F11/36 ,  C01F5/30 ,  C01F5/38 ,  Y10S159/03

    摘要： A low-cost, fluidized-bed drying process for the production of solidified alkaline earth salts is provided which is especially useful for the production of MgCl.sub.2.6H.sub.2 O from a starting brine nominally containing MgCl.sub.2.12H.sub.2 O. The process includes the steps of passing the starting brine into a drying chamber (12) and fluidizing the brine by contact with hot air for a period of from about 1-15 minutes while heating the brine to a maximum temperature of from about 200.degree.-275.degree. F. This creates a molten salt product, which can then be cooled using ambient air to yield the desired final product. Preferably, the brine is heated to a temperature of from about 230.degree.-250.degree. F., and is subjected to fluidizing contact with hot air for about 5-8 minutes. Ambient air cooling is accomplished by contacting the intermediate melt with ambient air for a period of from about 10 seconds to 3 minutes.

    摘要翻译： 提供了用于生产固化碱土金属盐的低成本流化床干燥方法，其特别可用于从名义上含有MgCl 2·2H 2 O的起始盐水中生产MgCl 2·6H 2 O. 该方法包括以下步骤：将起始盐水送入干燥室（12），并通过与热风接触约1-15分钟使盐水流化，同时将盐水加热至约200℃ - 275°F。这产生熔盐产物，然后可以使用环境空气冷却，以产生所需的最终产物。 优选地，将盐水加热至约230-250°F的温度，并与热空气进行流化接触约5-8分钟。 通过使中间熔体与环境空气接触约10秒至3分钟的时间来实现环境空气冷却。

    NEW FORMULATIONS OF NITRATE SALTS FOR USE AS FLUID FOR THE STORAGE AND TRANSFER OF HEAT
    12.
    发明申请
    NEW FORMULATIONS OF NITRATE SALTS FOR USE AS FLUID FOR THE STORAGE AND TRANSFER OF HEAT 审中-公开

    公开(公告)号：US20180230351A1

    公开(公告)日：2018-08-16

    申请号：US15758150

    申请日：2015-03-16

    申请人： QUIMICA DEL ESTRONCIO, S.A.

    发明人： Francisco Lorman Martinez ,  Francisca Galindo Paniagua ,  Maria Del Pilar Pena Castro ,  Luis Contreras Sanchez

    IPC分类号： C09K5/12

    CPC分类号： C09K5/12 ,  C01D9/00 ,  C01F11/36

    摘要： The invention relates to the innovative formulation of mixtures of nitrate salts, the composition of which is fundamentally based on strontium nitrate and other alkaline metal nitrates. These salts, according to the invention, produce an eutectic mixture with a meting point lower than 210° C., in a ternary formulation and the decomposition thereof occurring at a temperature greater than 00° C. In addition, other non-eutectic compositions are provided for the purpose of adapting their melting point to the different applications if considered necessary. Furthermore, this ternary formulation is more competitive than the existing formulations from an economic point of view. This formulation of salts has a direct application as a heat storage fluid, as well as a vehicle for heat transfer, being suitable for heat accumulation and transmission systems in thermosolar centres, as well as in any other application requiring temporary storage of thermal energy and the subsequent transfer thereof. The main provision of this invention is a fluid that can maintain its liquid state for a more prolonged period and at a temperature lower than the existing formulations, without the need to provide external heat and ensuring the stability of same at more elevated temperatures.

    Method and apparatus for extraction of strontium from urine
    13.
    发明授权
    Method and apparatus for extraction of strontium from urine 有权
    从尿中提取锶的方法和装置

    公开(公告)号：US08507284B2

    公开(公告)日：2013-08-13

    申请号：US13182873

    申请日：2011-07-14

    申请人： Michael D. Kaminski ,  Carol J. Mertz ,  Ilya A. Shkrob ,  Mark L. Dietz ,  Cory A. Hawkins

    发明人： Michael D. Kaminski ,  Carol J. Mertz ,  Ilya A. Shkrob ,  Mark L. Dietz ,  Cory A. Hawkins

    IPC分类号： G01N33/20 ,  B01D15/00 ,  B01D37/02 ,  C01F11/00

    CPC分类号： B01D15/1871 ,  B01D15/363 ,  B01D15/3847 ,  C01F11/005 ,  C01F11/36 ,  G01N33/493 ,  G01N33/84

    摘要： The present invention provides an apparatus and rapid methods for extracting strontium ions from urine to provide a concentrated and purified strontium-90 extract suitable for scintillation measurements. The methods remove organic compounds, pigments, and alkali metal ions that can interfere with quantitative determination of strontium-90 in urine. A method of the invention comprises acidifying urine and removing organic pigments therefrom, loading a known quantity of so-treated urine onto a diphosphonic acid-based ion-exchange resin; flowing aqueous methanesulfonic acid through the diphosphonic acid-based ion-exchange resin to elute alkali metal ions therefrom; eluting strontium ions off of the diphosphonic acid-based resin and on to a strontium extraction chromatographic resin with a concentrated aqueous nitric acid solution; subsequently flowing water or a dilute acid stripping solution through the strontium extraction resin to strip the strontium from the strontium extraction resin; and collecting the strontium-containing stripping solution eluting from the strontium extraction resin.

    摘要翻译： 本发明提供了一种用于从尿提取锶离子以提供适用于闪烁测量的浓缩和纯化的锶-90提取物的装置和快速方法。 这些方法可以去除可能干扰尿液中锶-90的定量测定的有机化合物，颜料和碱金属离子。 本发明的方法包括酸化尿液并从其中除去有机颜料，将已知量的如此处理的尿液加载到基于二膦酸的离子交换树脂上; 通过二膦酸离子交换树脂将甲磺酸水溶液从其中洗脱出碱金属离子; 从二膦酸类树脂中洗脱锶离子，并用浓硝酸水溶液萃取锶萃取色谱树脂; 随后将水或稀酸剥离溶液通过锶萃取树脂从锶萃取树脂中剥离锶; 并收集从锶萃取树脂洗脱的含锶剥离液。

    Method for purifying calcium nitrate melt/solution which is separated from the mixture obtained by the solution of rock phosphate with nitric acid
    14.
    发明授权
    Method for purifying calcium nitrate melt/solution which is separated from the mixture obtained by the solution of rock phosphate with nitric acid 失效
    硝酸镍熔体/溶液的纯化方法，该方法与硝酸磷酸盐溶液得到的混合物分离

    公开(公告)号：US4952379A

    公开(公告)日：1990-08-28

    申请号：US250848

    申请日：1988-09-28

    申请人： Johnny Nikolaisen

    发明人： Johnny Nikolaisen

    IPC分类号： C01F11/36 ,  C05C5/04

    CPC分类号： C05C5/04 ,  C01F11/36

    摘要： The present invention relates to a method for purifying calcium nitrate melt or solution separated from the mixture obtained by dissolution of rock phosphate with nitric acid. The melt contains fluorine and phosphorus as main contaminants. The mol-ratio phosphorus/fluorine in the crude calcium nitrate melt/solution is adjusted to 3.5>P/f>0.3, possibly by extra addition of a phosphorus compound, and the mixture is then neutralized by ammonia to pH=5-6. The precipitate thereby formed is removed while the filtrate, which is a purified nitrate of lime melt, is evaporated and further processed. The purification can be carried out in two stages, with a P/F-ratio in the first stage of 0.3-3 and 1-3.5 in the second stage. Phosphoric acid or a phosphoric acid containing solution is used as phosphorus compound.

    Process for preparing pure barium nitrate crystals
    15.
    发明授权
    Process for preparing pure barium nitrate crystals 失效
    制备纯硝酸钡晶体的方法

    公开(公告)号：US3947553A

    公开(公告)日：1976-03-30

    申请号：US477508

    申请日：1974-06-07

    申请人： Robert H. Moss ,  William F. Spicuzza

    发明人： Robert H. Moss ,  William F. Spicuzza

    IPC分类号： C01F11/22 ,  C01F11/36 ,  C01F11/38 ,  C01F11/44

    CPC分类号： C01F11/22 ,  C01F11/36

    摘要： A malleable or press-forgeable ingot of barium fluoride, for use as an optical body, may be grown from an ultra-pure precipitate of barium fluoride which contains less than 10 parts per million (ppm) of strontium or calcium. A process is disclosed for crystallizing barium nitrate crystals in the presence of nitric acid, reacting barium nitrate with ammonium carbonate to form barium carbonate, recovering barium carbonate crystals, suspending the barium carbonate crystals in water and precipitating barium fluoride with hydrofluoric acid. The barium fluoride crystals are recovered, dried and then calcined in the presence of ammonium fluoride or bifluoride. Barium fluoride (BaF.sub.2) crystals obtained by the process of this invention contain less than 10 ppm of each strontium and calcium.Crystals of an alkaline earth metal fluoride which have been calcined in the presence of a fluoride of ammonium are unexpectedly densified, and are particularly suited for melt-growth of an ingot in a known manner. A maximum concentration of 10 ppm of strontium and calcium in a BaF.sub.2 ingot has been found to be the critical demarcation between a frangible prior art BaF.sub.2 ingot and an ingot of BaF.sub.2 which does not unpredictably shatter when cut, and, which may be reliably press-forged into an optical body.

    摘要翻译： 用作光学体的可锻或可压锻的氟化钡锭可以从包含少于10ppm（ppm）锶或钙的氟化钡的超纯沉淀物生长。 公开了一种在硝酸存在下使硝酸钡晶体结晶的方法，使硝酸钡与碳酸铵反应形成碳酸钡，回收碳酸钡晶体，将碳酸钡晶体悬浮在水中，并用氢氟酸沉淀氟化钡。 回收氟化钡晶体，干燥，然后在氟化铵或氟化氢存在下煅烧。 通过本发明方法获得的氟化钡（BaF 2）晶体含有少于10ppm的锶和钙。

    Method of separating and purifying Yttrium-90 from Strontium-90
    20.
    发明授权
    Method of separating and purifying Yttrium-90 from Strontium-90 有权
    从锶-90分离和纯化钇-90的方法

    公开(公告)号：US07517508B2

    公开(公告)日：2009-04-14

    申请号：US11189131

    申请日：2005-07-25

    申请人： Lane Allan Bray

    发明人： Lane Allan Bray

    IPC分类号： G21F9/00

    CPC分类号： G21F9/08 ,  C01F11/36 ,  C01F17/0075 ,  C01P2006/88 ,  C22B3/065 ,  C22B3/44 ,  C22B26/20 ,  C22B59/00 ,  G21G4/08 ,  Y02P10/234

    摘要： The present invention provides a method of separating and purifying Yttrium-90 (Y-90) from Strontium-90 (Sr-90). In addition, a zirconium (Zr) clean-up step for the Y-90 is provided. Uses of the Y-90 purified by the method include cancer research and treatment. Y-90 is particularly useful in cell directed therapy, e.g., where the Y-90 is attached directly or indirectly to a targeting molecule such as an antibody.

    摘要翻译： 本发明提供了从锶-90（Sr-90）分离和纯化钇-90（Y-90）的方法。 另外，提供Y-90的锆（Zr）清理工序。 通过该方法纯化的Y-90的使用包括癌症研究和治疗。 Y-90特别可用于细胞定向治疗，例如其中Y-90直接或间接连接到靶向分子例如抗体上。