Technologies of twice dissolved by hydrochloric acid for waste rare earth luminescent materials
    81.
    发明授权
    Technologies of twice dissolved by hydrochloric acid for waste rare earth luminescent materials 有权
    盐酸二次溶解用于废稀土发光材料的技术

    公开(公告)号:US09322083B2

    公开(公告)日:2016-04-26

    申请号:US14419683

    申请日:2013-01-17

    CPC classification number: C22B59/00 C22B7/005 C22B7/007 Y02P10/234

    Abstract: The invention belongs to the field of recycling of resources, in particular to a method for waste rare earth luminescent material by dual hydrochloric acid. First hydrochloric acid was used to dissolve the red phosphor powder (Y2O3:Eu) priority, and yttrium-rich rare earth chloride solution and residue were obtained after filtered. Residue's major components were green and blue phosphor powder, and the removal of Ca2+ in filtrate was conducted by using Na2SO4, and CaSO4 precipitation separation was conducted to get rich rare earth chloride solution, europium and yttrium. Residue was mixed with alkali to perform alkaline fusion at high temperature to decompose green and blue powder, then sodium aluminate, magnesium, barium and rare earth oxides were obtained. Alkaline fusion products were washed with water, and filtered, and then sodium aluminate solution and residues containing rare earth oxides were obtained.

    Abstract translation: 本发明属于资源循环利用领域,特别涉及一种双重盐酸废稀土发光材料的制造方法。 使用第一盐酸溶解红色荧光体粉末(Y2O3:Eu),过滤后得到富钇稀土氯化物溶液和残留物。 残渣的主要成分为绿色和蓝色荧光粉,用Na 2 SO 4除去滤液中的Ca2 +,进行CaSO4沉淀分离,得到富稀土氯化物溶液,铕和钇。 残留物与碱混合,在高温下进行碱性熔融分解绿色和蓝色粉末,然后获得铝酸钠,镁,钡和稀土氧化物。 碱性熔融产物用水洗涤,过滤,然后得到铝酸钠溶液和含有稀土氧化物的残余物。

    Method for Treating Waste Rare Earth Luminescent Material Using Dual Hydrochloric Acid Dissolution
    82.
    发明申请
    Method for Treating Waste Rare Earth Luminescent Material Using Dual Hydrochloric Acid Dissolution 有权
    使用双盐酸溶解处理废稀土发光材料的方法

    公开(公告)号:US20150225813A1

    公开(公告)日:2015-08-13

    申请号:US14419683

    申请日:2013-01-17

    CPC classification number: C22B59/00 C22B7/005 C22B7/007 Y02P10/234

    Abstract: The invention belongs to the field of recycling of resources, in particular to a method for waste rare earth luminescent material by dual hydrochloric acid. First hydrochloric acid was used to dissolve the red phosphor powder (Y2O3:Eu) priority, and yttrium-rich rare earth chloride solution and residue were obtained after filtered. Residue's major components were green and blue phosphor powder, and the removal of Ca2+ in filtrate was conducted by using Na2SO4, and CaSO4 precipitation separation was conducted to get rich rare earth chloride solution, europium and yttrium. Residue was mixed with alkali to perform alkaline fusion at high temperature to decompose green and blue powder, then sodium aluminate, magnesium, barium and rare earth oxides were obtained. Alkaline fusion products were washed with water, and filtered, and then sodium aluminate solution and residues containing rare earth oxides were obtained.

    Abstract translation: 本发明属于资源循环利用领域,特别涉及一种双重盐酸废稀土发光材料的制造方法。 使用第一盐酸溶解红色荧光体粉末(Y2O3:Eu),过滤后得到富钇稀土氯化物溶液和残留物。 残渣的主要成分为绿色和蓝色荧光粉,用Na 2 SO 4除去滤液中的Ca2 +,进行CaSO4沉淀分离,得到富稀土氯化物溶液,铕和钇。 残留物与碱混合,在高温下进行碱性熔融分解绿色和蓝色粉末,然后获得铝酸钠,镁,钡和稀土氧化物。 碱性熔融产物用水洗涤,过滤,然后得到铝酸钠溶液和含有稀土氧化物的残余物。

    Visible light detector with high-photoresponse based on TiO

    公开(公告)号:US11961934B2

    公开(公告)日:2024-04-16

    申请号:US17343048

    申请日:2021-06-09

    CPC classification number: H01L31/109 H01L31/03365 H01L31/1828

    Abstract: In the field of photoelectric devices, a visible light detector is provided with high-photoresponse based on a TiO2/MoS2 heterojunction and a preparation method thereof. The detector, based on a back-gated field-effect transistor based on MoS2, includes a MoS2 channel, a TiO2 modification layer, a SiO2 dielectric layer, Au source/drain electrodes and a Si gate electrode, The TiO2 modification layer is modified on the surface of the MoS2 channel. By employing micromechanical exfoliation and site-specific transfer of electrodes, the method is intended to prepare a detector by constructing a back-gated few-layer field-effect transistor based on MoS2, depositing Ti on the channel surface, and natural oxidation.

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