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    • 5. 发明授权
    • Process for the extraction of metal ions
    • 萃取金属离子的方法
    • US4334999A
    • 1982-06-15
    • US240186
    • 1981-03-03
    • David A. Cornwell
    • David A. Cornwell
    • B01D11/02C22B3/38B01D11/00C02F1/26C02F1/42
    • B01D11/028C22B3/0068C22B3/0087Y02P10/234
    • A process for extracting metal ions from a water insoluble metal base or salt dispersed in an aqueous solution using liquid ion exchange is described. The liquid ion exchange extractant is an alkyl phosphoric acid or acid phosphate (APA) which is dissolved in a water immiscible organic solvent. In contrast to prior art processes where the metal ion is dissolved in an aqueous solution, the insoluble metal base or salt is one which is reactive from an aqueous solution with the APA to replace one of the acid hydrogens to form an alkyl phosphate metal salt (APS) in the organic solvent. The metal ion can be recovered from the APS in the organic solvent by stripping with an aqueous acidic solution so that the metal ion is removed from the APS to form a metal salt in the aqueous acidic solution and the APA in the organic solvent is regenerated for reuse. The process is particularly adapted to producing alum from aluminum hydroxide which is dispersed in an aqueous sludge resulting from precipitation or coagulation with alum in potable water clarification. The aluminum ion is extracted by the APA from the aluminum hydroxide and then recovered by using an aqueous solution of sulfuric acid to remove the aluminum ion and to form aluminum sulfate in an acidic aqueous solution, referred to as "liquid alum", which can be reused.
    • 描述了使用液体离子交换从分散在水溶液中的水不溶性金属基质或盐提取金属离​​子的方法。 液体离子交换萃取剂是溶解在与水不混溶的有机溶剂中的烷基磷酸或酸式磷酸酯(APA)。 与金属离子溶解在水溶液中的现有技术方法相反,不溶性金属碱或盐是与APA的水溶液反应以代替其中一个酸氢形成磷酸烷基磷酸金属盐的方法 APS)在有机溶剂中。 金属离子可以通过用酸性水溶液汽提从有机溶剂中的APS中回收,以使金属离子从APS中除去,从而在酸性水溶液中形成金属盐,再生有机溶剂中的APA再生 重用。 该方法特别适用于由氢氧化铝产生明矾,其分散在由饮用水澄清中的明矾沉淀或凝结而产生的水性污泥中。 铝离子由APA从氢氧化铝中提取,然后通过使用硫酸水溶液回收以除去铝离子并在酸性水溶液中形成硫酸铝,称为“液体明矾”,其可以是 重复使用
    • 8. 发明授权
    • Broadband wireless system for multi-modal imaging
    • US11637527B2
    • 2023-04-25
    • US17618064
    • 2019-06-12
    • The General Hospital CorporationBoard of Trustees Michigan State University
    • Xin YuChunqi Qian
    • H03B5/12H03J3/18H03L7/099G01R33/36G01R33/48
    • The multi-modal imaging system, in particular for brain imaging, comprising a pump signal generator which emits at least one pump signal in the radio frequency (RF)-range with a first power P1 and a second power P2, a wireless detection unit, which comprises at least one parametric resonator circuit with multiple resonance modes, wherein the at least one parametric resonator circuit comprises at least two varactors, at least one capacitor and at least one inductance, wherein, in a first detection mode, the pump signal, having a first power P1, induces a first pump current in the at least one parametric resonator circuit, wherein the at least one parametric resonator circuit is operated below its oscillation threshold and generates a first output signal by amplifying a first input signal, which is provided due to a magnetic-resonance (MR) measurement, wherein an external receiving device receives the first output signal, wherein, in a second detection mode, the pump signal, having a second power P2, induces a second pump current in the at least one parametric resonator circuit, wherein the at least one parametric resonator circuit is operated above its oscillation threshold and generates a second output signal, wherein the second output signal is modulated with a second input signal, wherein the second input signal is provided by at least one neuronal probe device, connected to the at least one parametric resonator circuit, wherein the external receiving device receives the second output signal.
    • 10. 发明申请
    • Broadband Wireless System for Multi-Modal Imaging
    • US20220311383A1
    • 2022-09-29
    • US17618064
    • 2019-06-12
    • Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.Board of Trustees Michigan State University
    • Xin YUChunqi QIAN
    • H03B5/12H03L7/099H03J3/18
    • The multi-modal imaging system, in particular for brain imaging, comprising a pump signal generator which emits at least one pump signal in the radio frequency (RF)-range with a first power P1 and a second power P2, a wireless detection unit, which comprises at least one parametric resonator circuit with multiple resonance modes, wherein the at least one parametric resonator circuit comprises at least two varactors, at least one capacitor and at least one inductance, wherein, in a first detection mode, the pump signal, having a first power P1, induces a first pump current in the at least one parametric resonator circuit, wherein the at least one parametric resonator circuit is operated below its oscillation threshold and generates a first output signal by amplifying a first input signal, which is provided due to a magnetic-resonance (MR) measurement, wherein an external receiving device receives the first output signal, wherein, in a second detection mode, the pump signal, having a second power P2, induces a second pump current in the at least one parametric resonator circuit, wherein the at least one parametric resonator circuit is operated above its oscillation threshold and generates a second output signal, wherein the second output signal is modulated with a second input signal, wherein the second input signal is provided by at least one neuronal probe device, connected to the at least one parametric resonator circuit, wherein the external receiving device receives the second output signal.