Aminopolyol anion exchange resins for separation isotopes
    271.
    发明授权
    Aminopolyol anion exchange resins for separation isotopes 失效
    用于分离同位素的氨基多羟基阴离子交换树脂

    公开(公告)号:US4621103A

    公开(公告)日:1986-11-04

    申请号:US645489

    申请日:1984-08-29

    CPC classification number: B01D59/30 B01J41/14 B01J41/20

    Abstract: An anion exchange resin for separating boron isotopes which is a resin having an aminopolyol group as a functional group and has been treated with an alkali solution containing:A: an alkali metal hydroxide or ammonium hydroxide; andB: an alkali metal salt or an ammonium saltand which is to be used in steps comprising passing a boric acid solution through a column packed with said resin to form a boric acid adsorption band and thereafter developing said adsorption band with an acid solution thereby separating boron isomers.

    Abstract translation: 一种阴离子交换树脂,用于分离作为官能团的具有氨基多元醇基团的树脂的硼同位素,并且已经用碱性溶液处理:A:碱金属氢氧化物或氢氧化铵; 和B:碱金属盐或铵盐,其用于将硼酸溶液通过填充有所述树脂的柱形成硼酸吸附带并随后用酸溶液显影所述吸附带的步骤 分离硼异构体。

    Chelate resin and process for producing the same
    273.
    发明授权
    Chelate resin and process for producing the same 失效
    螯合树脂及其制备方法

    公开(公告)号:US4564659A

    公开(公告)日:1986-01-14

    申请号:US525473

    申请日:1983-08-22

    CPC classification number: B01J45/00 C08F8/30 C08F8/32 C08F2810/20

    Abstract: A chelate resin having a functional group of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl, aminoalkyl, phenyl or a substituted group thereof and another functional group of the formula: ##STR2## wherein R.sub.3 is amino, alkylamino, polyethylenepolyamino, hydrazo, hydrazino, hydrazono, amidino, guanidino, semicarbazide or a substituted group thereof, has an excellent adsorption capacity for metal ions.

    Abstract translation: 具有下式的官能团的螯合树脂:其中R 1和R 2各自独立地为氢,烷基,氨基烷基,苯基或其取代基,另一种下式的官能团:其中R 3为氨基,烷基氨基 ,聚亚乙基聚氨基,水合肼,肼基,亚肼基,脒基,胍基,氨基脲或其取代基对金属离子具有优异的吸附能力。

    Phenolic cation exchange resin material for recovery of cesium and
strontium
    277.
    发明授权
    Phenolic cation exchange resin material for recovery of cesium and strontium 失效
    用于回收铯和锶的酚醛阳离子交换树脂材料

    公开(公告)号:US4423159A

    公开(公告)日:1983-12-27

    申请号:US375232

    申请日:1982-05-05

    CPC classification number: C01F11/005 B01J45/00 C01D17/00 C22B3/42 Y02P10/234

    Abstract: A phenolic cation exchange resin with a chelating group has been prepared by reacting resorcinol with iminodiacetic acid in the presence of formaldehyde at a molar ratio of about 1:1:6. The material is highly selective for the simultaneous recovery of both cesium and strontium from aqueous alkaline solutions, such as, aqueous alkaline nuclear waste solutions. The organic resins are condensation polymers of resorcinol and formaldehyde with attached chelating groups. The column performance of the resins compares favorably with that of commercially available resins for either cesium or strontium removal. By combining Cs.sup.+ and Sr.sup.2+ removal in the same bed, the resins allow significant reduction of the size and complexity of facilities for processing nuclear waste.

    Abstract translation: 具有螯合基团的酚类阳离子交换树脂已经通过在甲醛存在下,以约1:1:1的摩尔比将间苯二酚与亚氨基二乙酸反应来制备。 该材料对于从碱性水溶液如碱性碱性废水溶液中同时回收铯和锶是高选择性的。 有机树脂是间苯二酚和甲醛与附着螯合基团的缩聚物。 树脂的柱性能优于用于铯或锶去除的市售树脂的柱性能。 通过将Cs +和Sr2 +除去在同一床中,树脂可显着减少用于处理核废料的设施的大小和复杂性。

    Phenolic chelate resin, process for producing the same, and method of
recovering heavy metal ions with the same
    278.
    发明授权
    Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same 失效
    酚醛螯合树脂,其制备方法,以及用其回收重金属离子的方法

    公开(公告)号:US4414183A

    公开(公告)日:1983-11-08

    申请号:US400190

    申请日:1982-07-20

    Abstract: The phenolic chelate resin has a chelate-forming group wherein part or all of the hydrogen atoms in a primary and/or secondary alkylamino group introduced in a phenol nucleus are replaced by a methylenephosphonate group. Also disclosed is a process for producing such a chelate resin, and a method for recovering heavy metal ions with such a resin. The resin has particularly high selectivity for adsorbing uranium ions, as well as high heat, acid and alkali resistance as well as dimensional stability. The resin is very effective for recovering uranium from various uranium-containing solutions such as sea water, crude phosphoric acid fertilizer solutions, low-grade uranium ore, waste water from uranium refining, and uranium mine water.

    Abstract translation: 酚类螯合树脂具有螯合形成基团,其中引入酚核中的伯和/或仲烷基氨基中的部分或全部氢原子被亚甲基膦酸酯基取代。 还公开了制备这种螯合树脂的方法,以及用这种树脂回收重金属离子的方法。 该树脂具有特别高的吸附铀离子的选择性,以及高的耐热,耐酸碱性以及尺寸稳定性。 该树脂对于从各种含铀溶液如海水,粗磷酸肥料溶液,低级铀矿石,铀精炼废水和铀矿水中回收铀非常有效。

    High density ion exchange resins
    279.
    发明授权
    High density ion exchange resins 失效
    高密度离子交换树脂

    公开(公告)号:US4399235A

    公开(公告)日:1983-08-16

    申请号:US262670

    申请日:1981-05-11

    CPC classification number: B01J47/006 B01J39/20 B01J41/14 B01J45/00 C22B60/0265

    Abstract: High density, ion exchange resins having excellent integrity are prepared from cross-linked, aromatic polymers which have been halogenated in the presence of an organic liquid having a sufficiently high dielectric constant to prevent substantial halogenation of the polymer backbone such as various organic nucleophiles having a free electron pair associated with a nonhalogen atom, e.g., ethanol or dimethylformamide. For example, a cross-linked polystyrene which has been brominated in methylene chloride containing a small amount of ethanol can subsequently be chloromethylated and aminated to form a high density anion exchange resin useful in removing anions from thick slurries such as those employed in uranium recovery.

    Abstract translation: 具有优异完整性的高密度离子交换树脂由具有足够高介电常数的有机液体存在下被卤化的交联的芳族聚合物制备,以防止聚合物骨架的基本上卤化,例如具有 与非卤素原子相关的自由电子对,例如乙醇或二甲基甲酰胺。 例如,在含有少量乙醇的二氯甲烷中溴化的交联聚苯乙烯可随后被氯甲基化并胺化以形成高密度阴离子交换树脂,用于从诸如用于铀回收的那些粗浆中除去阴离子。

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