Cyanide detoxication by oxidn ion exchange - system

    公开(公告)号:FR2071917A5

    公开(公告)日:1971-09-17

    申请号:FR7040172

    申请日:1970-11-09

    Abstract: Detoxicating of solutions containing free as well as complex heavy metal cyanides takes place in aerated active C column for catalytic cyanide oxidation coupled with ion exchange installation consisting of at least one strongly acid cation exchanger and a weakly basic anion exchanger. Pref. C column is coupled on outlet side of weakly basic ion exchanger. On strongly acid cation exchange, heavy metal cyanide complexes are decomposed to HCN and difficultly soluble heavy metal cyanide precipitates. HCN is not bonded by weakly basic exchanger, so it passes into waste water thereof and is oxidised on C. Oxidation products, passing into recycle water, are cyanate and NH3.

    124.
    发明专利
    未知

    公开(公告)号:ES3007569T3

    公开(公告)日:2025-03-20

    申请号:ES18192663

    申请日:2016-01-20

    Applicant: NOVAMONT SPA

    Abstract: Esta invención se refiere a un proceso para la escisión oxidativa de aceites vegetales que contienen triglicéridos de ácidos grasos monoinsaturados, que comprende la recuperación de iones de cobalto y ácido túngstico y/o sus derivados de las soluciones acuosas resultantes. En particular, esta invención se refiere a un proceso para la recuperación de iones de cobalto y ácido túngstico y/o sus derivados, que utiliza resinas de intercambio catiónico. (Traducción automática con Google Translate, sin valor legal)

    Use of h2so4 as electrolyte in processes for smoothing and polishing metals by ion transport via free solids

    公开(公告)号:IL275330B1

    公开(公告)日:2024-12-01

    申请号:IL27533020

    申请日:2020-06-14

    Applicant: DRYLYTE SL

    Abstract: The invention relates to an electrolyte for smoothing and polishing metal or alloy parts by ion transport via free solids that are electrically conductive in a gaseous environment, wherein the electrolyte comprises free solids consisting of particles with sufficient porosity and affinity that retains a specific amount of a solution of H2SO4 with a variable concentration based on the type of metal or alloy of the part to be polished so that the free solids are electrically conductive in a gaseous environment.

    Isotope preparation method
    126.
    发明专利

    公开(公告)号:IL259644B

    公开(公告)日:2022-08-01

    申请号:IL25964418

    申请日:2018-05-28

    Applicant: BAYER AS

    Abstract: The present invention comprises a method for the generation of 227Th of pharmaceutically tolerable purity comprisingi) preparing a generator mixture comprising 227Ac, 227Th and 223Ra;ii) loading said generator mixture onto a strong base anion exchange resin;iii) eluting a mixture of said 223Ra and 227Ac from said strong base anion exchange resin using a first mineral acid in an aqueous solution;iv) eluting 227Th from said strong base anion exchange resin using a second mineral acid in an aqueous solution whereby to generate a first 227Th solution containing contaminant 223Ra and 227Ac;v) loading the first 227Th solution onto a strong acid cation exchange resin;vi) eluting at least a part of the contaminant 223Ra and 227Ac from said strong acid cation exchange resin using a third mineral acid in aqueous solution; andvii) eluting the 227Th from said strong acid cation exchange resin using a first aqueous buffer solution to provide a second 227Th solution.Purified thorium-227 of pharmaceutical purity and a pharmaceutical composition comprising the same are also provided.

    SISTEMA DE INTERCAMBIO DE IONES Y MÉTODO PARA LA CONVERSIÓN DE LA SOLUCIÓN ACUOSA DE LITIO

    公开(公告)号:AR121059A1

    公开(公告)日:2022-04-13

    申请号:ARP210100091

    申请日:2021-01-15

    Inventor: BISHKIN DAVID

    Abstract: Los sistemas y métodos utilizan el intercambio de iones para extraer el litio de una solución alimenticia que contiene litio, como una salmuera de salar. Los iones de litio se cargan en una resina de intercambio de iones y luego se eluyen mientras se recarga la resina. Se puede utilizar hidróxido de sodio o bicarbonato de sodio para recargar la resina, pero no se mezclan directamente con la solución de alimentación que contiene litio. Se produce una corriente de eluato que contiene hidróxido de litio o bicarbonato de litio. El hidróxido de litio puede precipitarse como hidróxido de litio o en forma de hidrato. El bicarbonato de litio puede convertirse en carbonato de litio. El sistema y el método incluyen opcionalmente el procesamiento de una corriente de eluato para recuperar uno o más compuestos para su reutilización en la regeneración del lecho de resina.

    System and apparatus for conditioning water and regenerating ion exchange

    公开(公告)号:IL286418D0

    公开(公告)日:2021-10-31

    申请号:IL28641821

    申请日:2021-09-14

    Applicant: TYGRUS LLC

    Abstract: A system and method for regeneration of an ion exchange material employed in a water softening or conditioning system. The method includes the step of contacting the ion exchange material with an aqueous process fluid that includes a compound having as set forth in General Formula I to yield a regenerated ion exchange material with at least one target material removed. The target material includes at least one of the following: metal ions such as those that have been extracted from a source of hard water, ionically soluble organic compounds, active water borne pathogens. During the contacting step, at least a portion of the target material associated with the ion exchange material is removed from association with the ion exchange material. After removal from association with the ion exchange material, the target material is retained in the process fluid and conveyed to a suitable recovery and/or removal source.

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